WO2016072484A1 - Optical device, vehicle on which optical device is mounted, and illumination device - Google Patents

Optical device, vehicle on which optical device is mounted, and illumination device Download PDF

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Publication number
WO2016072484A1
WO2016072484A1 PCT/JP2015/081264 JP2015081264W WO2016072484A1 WO 2016072484 A1 WO2016072484 A1 WO 2016072484A1 JP 2015081264 W JP2015081264 W JP 2015081264W WO 2016072484 A1 WO2016072484 A1 WO 2016072484A1
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WIPO (PCT)
Prior art keywords
laser light
unit
illumination
optical device
light source
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Application number
PCT/JP2015/081264
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French (fr)
Japanese (ja)
Inventor
牧夫 倉重
一敏 石田
山本　学
Original Assignee
大日本印刷株式会社
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Application filed by 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority to JP2016557820A priority Critical patent/JP6156668B2/en
Publication of WO2016072484A1 publication Critical patent/WO2016072484A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements

Definitions

  • the present invention relates to an optical device for illuminating a road surface and the like and a vehicle equipped with such an optical device.
  • the present invention also relates to an illumination device using a laser as a light source.
  • a vehicle headlamp optical system using an incoherent light source such as a halogen is known.
  • a light distribution pattern is created by a reflecting surface of a reflector disposed around the light source, and the light from the light source is reflected there and projected forward.
  • the light distribution pattern and color of the headlamps are controlled by refraction, etc. using multiple light sources such as LEDs in order to perform more free light distribution control. It has been proposed to do.
  • Patent Document 1 Japanese Patent Publication No. 2014-519160 discloses a vehicular lamp characterized by including a plurality of LEDs having different emission colors.
  • an illumination device includes an array of light emitting diodes as light sources and a fluorescent material excited by the light emitting diodes.
  • Patent Document 2 Japanese Patent Publication No. 2012-516534 discloses a remote phosphor disposed between an array of light sources and an array of light sources and a light output window for emitting light from the light sources.
  • An illumination system having a layer and / or a scattering layer is disclosed.
  • Special table 2012-516534 gazette
  • the conventional lighting device as described above has a problem that precise light distribution control is difficult because an array of light sources and a diode are used. Therefore, in order to perform more precise light distribution control, it is conceivable to use a laser array as a light source of an illumination device.
  • the laser light emitted from the laser array needs to be appropriately diffused from the viewpoint of safety, but the laser light converges again to a high energy density by simply diverging the laser light using a lens. In order to be possible, there has been a problem that some measures must be taken for the safety of the lighting device.
  • the present invention is for solving the above problems, and an optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light; A scanning unit that reflects laser light emitted from the laser light source and emits scanning light, an optical element that illuminates by being incident on the road and emitting light to the road surface, and an image of the surroundings of the vehicle An image pickup unit that analyzes the image picked up by the image pickup unit and determines whether or not the characteristic structure portion exists, and the determination unit determines that the characteristic structure portion exists. It is characterized in that irradiation to the structure portion is suppressed or emphasized.
  • An optical device is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light and a laser light emitted from the laser light source are incident on the road surface.
  • An optical element that performs illumination by emitting light, an imaging unit that captures an image of the surroundings of the vehicle, and a determination unit that analyzes an image captured by the imaging unit and determines whether a characteristic structure unit exists. And when the determination unit determines that the characteristic structure portion exists, the irradiation to the characteristic structure portion is suppressed or emphasized.
  • the optical device according to the present invention is characterized in that the characteristic structure portion is a glass portion of an oncoming vehicle and suppresses irradiation.
  • the optical device according to the present invention is characterized in that the characteristic structure portion is a curbstone, a guardrail, or a centerline, and performs enhancement of irradiation.
  • the optical device according to the present invention is characterized in that the characteristic structure portion is a license plate and emphasizes irradiation.
  • the optical device according to the present invention is characterized in that the characteristic structure portion is an obstacle on a road and emphasizes irradiation.
  • the optical device according to the present invention is characterized in that the optical element is a hologram, and the light emitted from the hologram is a hologram reproduction image.
  • a vehicle according to the present invention is a vehicle equipped with any of the optical devices described above.
  • an optical device is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light.
  • An optical element that is illuminated by laser light emitted from the laser light source and emits light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit And determining whether or not a person is present, and if the determination unit determines that a person is present, irradiation to a human face is suppressed.
  • An optical device is an optical device that is mounted on a moving body and illuminates a road surface, and includes a laser light source that emits laser light, a laser light emitted from the laser light source, and a scanning light.
  • a scanning unit that emits light, an optical element that illuminates by emitting light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit
  • a determination unit that analyzes and determines whether a person is present, and if the determination unit determines that a person is present, the irradiation to the human face is suppressed.
  • An optical device is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light and a laser light emitted from the laser light source are incident on the road surface.
  • An optical element that performs illumination by emitting light, an imaging unit that captures an image of a state in front of the moving body, and a face recognition unit that analyzes an image captured by the imaging unit and recognizes a face of a specific person. And lighting for emphasizing the person recognized by the face recognition unit.
  • An optical device is an optical device that is mounted on a moving body and illuminates a road surface, and includes a laser light source that emits laser light, a laser light emitted from the laser light source, and a scanning light.
  • a scanning unit that emits light, an optical element that illuminates by emitting light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit
  • a face recognition unit that analyzes and recognizes the face of a specific person, and performs illumination that emphasizes the person recognized by the face recognition unit.
  • the optical device according to the present invention is characterized in that the optical element is a hologram, and the light emitted from the hologram is a hologram reproduction image.
  • a vehicle according to the present invention is a vehicle equipped with any of the optical devices described above.
  • this invention is for solving the above subjects, and the illuminating device based on this invention is distribute
  • the illumination device is characterized in that a predetermined laser light source among the plurality of laser light sources is turned on or off or dimmed.
  • a plurality of incident end lenses are arranged between the plurality of laser light sources and the plurality of uniformizing optical systems, and laser light emitted from the plurality of laser light sources.
  • the light incident on the plurality of incident end lenses and emitted from the plurality of incident end lenses is incident on the plurality of uniformizing optical systems.
  • the illumination device is characterized in that optical axes of the plurality of incident end lenses are deviated from the centers of the laser beams emitted from the plurality of laser light sources.
  • a plurality of emission end lenses are arranged at an end of the plurality of homogenization optical systems on the side where the plurality of laser light sources are not arranged, and the plurality of homogenization optical systems The light emitted from the light enters the exit end lens.
  • the illumination device is characterized in that the optical axes of the plurality of emission end lenses are deviated from the centers of the laser beams emitted from the plurality of laser light sources.
  • a prism is disposed at an end of the plurality of uniformizing optical systems on the side where the plurality of laser light sources are not disposed, and is emitted from the plurality of uniformizing optical systems. The light is incident on the prism.
  • a hologram is disposed at an end portion of the plurality of uniformizing optical systems on the side where the plurality of laser light sources are not disposed, and is emitted from the plurality of uniformizing optical systems. The light is incident on the hologram.
  • the illumination device is characterized in that a longitudinal direction of the plurality of uniformizing optical systems and a traveling direction of laser light emitted from the plurality of laser light sources form an angle larger than 0 °. To do.
  • the illumination device is characterized in that an arrangement direction of the plurality of laser light sources is not a one-dimensional direction.
  • the present invention is for solving the above-described problems, and an illuminating device according to the present invention emits a plurality of laser light sources that emit laser light, and reflects light incident on an incident end.
  • An incident end lens is arranged between the light guide member guided to the end side, the plurality of laser light sources, and the light guide member, and the laser light emitted from the plurality of laser light sources is transmitted to the incident end lens.
  • the light that is incident and emitted from the incident end lens is incident on the light guide member.
  • the illumination device is characterized in that a predetermined laser light source among the plurality of laser light sources is turned on or off or dimmed.
  • the illumination device according to the present invention is characterized in that a hologram is arranged at an emission end of the light guide member.
  • the illumination device according to the present invention is characterized in that a lens array is arranged at an emission end of the light guide member.
  • the illumination device according to the present invention is characterized in that a plurality of convex lenses are provided as the incident end lens.
  • the illumination device according to the present invention is characterized in that a cylindrical lens is provided as the incident end lens.
  • the illumination device according to the present invention is characterized in that a toric lens is provided as the incident end lens.
  • the lighting device according to the present invention is characterized in that the light guide member is made of an organic polymer material and has a high refractive index layer between opposed low refractive index layers.
  • the lighting device according to the present invention is characterized in that the light guide member is molded by hot pressing.
  • the lighting device according to the present invention is characterized in that the light guide member is made of a glass material and has a high refractive index layer between the low refractive index layers facing each other.
  • optical device According to the optical device according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of components, and in addition to a function as a vehicle headlamp, Since it has a function of suppressing or enhancing lighting, convenience is improved, safety is improved, or functionality is improved.
  • optical device of the present invention it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to the function as a vehicle headlamp, the human face Since it has the function to suppress the illumination with respect to, it is highly convenient.
  • the optical device having a function of suppressing illumination on the human face.
  • optical device of the present invention it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and emphasizes a specific person in addition to the function as a vehicle headlamp. Since it has a function of performing illumination, it is highly convenient.
  • the functionality is improved by the optical device having the function of performing illumination that emphasizes a specific person.
  • the lighting device according to the present invention can perform precise light distribution control and improve safety.
  • the lighting device according to the present invention it is possible to provide a lighting device with improved design.
  • the manufacturability of the illumination device is improved.
  • FIG. 1 is a diagram illustrating an example in which an optical device 100 according to an embodiment of the present invention is used for a headlight of a vehicle 200.
  • FIG. 1 is a block diagram of an optical device 100 according to an embodiment of the present invention. It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 1st Embodiment of this invention.
  • FIG. 1 is a diagram illustrating an example of a unit unit 10 constituting an optical device 100 according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining illumination by the unit unit 10.
  • the optical device 100 includes a plurality of unit units 10, and the unit unit 10 has the most basic minimum configuration.
  • the unit unit 10 includes a laser light source that emits laser light, and an optical element that emits light by being incident upon the laser light emitted from the laser light source.
  • a transmission hologram is used as the optical element.
  • the hologram may be a transmission hologram or a reflection hologram.
  • the hologram include an embossed hologram, a volume hologram, and an electronic hologram.
  • a computer-generated hologram that is produced by recording interference fringes on a predetermined recording surface by calculation using a computer can also be used.
  • a Fourier-transform hologram that is a computer-generated hologram using a Fourier transform optical system may be used.
  • the unit unit 10 uses a unit laser array 30 as a laser light source.
  • the unit laser array 30 has three laser light sources, a first laser light source 31, a second laser light source 32, and a third laser light source 33.
  • the first laser light source 31, the second laser light source 32, and the third laser light source 33 emit light having different wavelengths, and the first laser light source 31 emits light of the first wavelength and the second laser light source.
  • Light having a second wavelength is emitted from 32, and light having a third wavelength is emitted from the third laser light source 33.
  • the first wavelength light emitted from the first laser light source 31 is blue light
  • the second wavelength light emitted from the second laser light source 32 is green light
  • the light of the third wavelength emitted from the three laser light source 33 can be red light.
  • the unit laser array 30 will be described based on an example in which three different laser light sources, ie, a first laser light source 31, a second laser light source 32, and a third laser light source 33 are used.
  • the number of types of laser light sources used may be arbitrary.
  • the laser light emitted from the first laser light source 31 enters the first storage area 51 of the unit hologram 50, and the laser light emitted from the second laser light source 32 enters the second storage area 52 of the unit hologram 50.
  • the laser light emitted from the third laser light source 33 is incident on the third storage area 53 of the unit hologram 50.
  • the laser light from the first laser light source 31 is incident on the first storage area 51 of the unit hologram 50 as reference light, a hologram reproduction image recorded in the first storage area 51 is obtained.
  • the unit illumination area is emitted from the unit hologram 50 to illuminate the unit illumination area.
  • the hologram recorded in the second storage area 52 is reproduced.
  • An image is emitted from the unit hologram 50 to illuminate the unit illumination area.
  • the hologram recorded in the third storage area 53 is reproduced.
  • An image is emitted from the unit hologram 50 to illuminate the unit illumination area.
  • the light emission of the first laser light source 31, the second laser light source 32, and the third laser light source 33 can be controlled by the upper control unit 110.
  • the unit illumination area can be arbitrarily illuminated with the three primary colors of each laser light source based on the control of each laser light source, so that the unit illumination area is illuminated with an arbitrary color. Will be able to.
  • the optical device 100 is provided with a plurality of unit units 10 composed of a combination of the unit laser array 30 and the unit hologram 50 as described above, and the laser array 40 and the hologram 60 as the entire optical device 100 are configured.
  • the laser array 40 is composed of a plurality of unit laser arrays 30, and the hologram 60 has a storage area corresponding to each laser light source of the plurality of unit laser arrays 30.
  • the unit laser array 3 is composed of at least one laser light source.
  • each unit laser array 30 illuminates the unit illumination area, and the entire optical apparatus 100 is formed as a whole illumination area.
  • the unit illumination region formed by the unit laser array 30 and the unit hologram 50 plays a role like a pixel in a general display device.
  • the unit illumination region Various illumination patterns can be formed by controlling the unit laser array 30 in the laser array 40 so as to perform different illuminations.
  • the display shape in the illumination area can be freely set.
  • rectangular illumination can be easily performed, an illumination area can be formed efficiently.
  • the unit laser arrays 30 in the laser array 40 are planar, ie, two-dimensionally arranged, is described.
  • the unit laser arrays 30 are arranged one-dimensionally. May be.
  • the laser array 40 including a plurality of unit laser arrays 30 is used as a light source that is incident on the hologram 60 of the optical device 100, but as a light source that is incident on the hologram 60 of the optical device 100, Scanning light can also be used.
  • FIG. 4 is a diagram for explaining illumination by the optical device 100 according to another embodiment of the present invention.
  • the 4 has a mirror 70 that reflects laser light emitted from each laser light source of the unit laser array 30 and emits scanning light.
  • the mirror 70 is configured to rotate about one axis direction, or to rotate in two directions of one axis direction or two axis directions orthogonal to this, so that the hologram 60 is reflected by the reflected light of the laser beam. Scanning light for scanning can be formed.
  • the optical device 100 according to the present invention can also be realized by such a configuration.
  • a galvano mirror As the mirror 70 as described above, specifically, a galvano mirror, a MEMS scanner, a polygon mirror, or the like can be used.
  • control unit 110 of the optical device 100 controls each laser light source of the unit laser array 30 and controls the operation of the mirror 70 as a scanning unit.
  • the output of the unit laser array 30 is adjusted in synchronization with the scanning.
  • the output of the unit laser array 30 is turned off, only the part can be unirradiated.
  • various illumination patterns can be created by controlling the balance of the outputs of the first laser light source 31, the second laser light source 32, and the third laser light source 33.
  • FIG. 5 is a diagram illustrating an example in which the optical device 100 according to the embodiment of the present invention is used for a headlight of a moving body such as a vehicle 200.
  • a vehicle 200 by controlling the laser array 40 with the control unit 110, in addition to using the optical device 100 as a normal headlight, for example, only the portion shown in FIG. It becomes possible to do.
  • the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser light source is turned off. Control to turn on the output of 31 (blue) is performed.
  • the scanning optical device 100 when scanning the unit hologram 50 that irradiates the portion A, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off. Control is performed to turn on the output of one laser light source 31 (blue).
  • the optical device 100 according to the present invention can illuminate the front of the vehicle 200 with white color, can perform illumination other than white as shown in A in addition to white illumination, or without white illumination. Only the illumination shown in A can be performed.
  • the vehicle 200 on which the optical device 100 of the present invention can be mounted includes a vehicle that travels only with the driving force of the gasoline engine, a vehicle that travels with the driving force of the gasoline engine and the motor, and a vehicle that travels only with the driving force of the motor. Or, a vehicle that travels by the driving force of a diesel engine is included. Furthermore, the optical device 100 of the present invention can be mounted on a two-wheeled vehicle or the like. Motorcycles include not only motorcycles but also bicycles. In other words, the optical device 100 of the present invention can be mounted on various moving bodies as described above.
  • FIG. 6 is a block diagram of the optical device 100 according to the embodiment of the present invention.
  • control unit 110 is a general-purpose information processing unit including a CPU (Central Processing Unit), a ROM (Read Only Memory) that holds programs operating on the CPU, and a RAM (Random Access Memory) that is a work area of the CPU. Mechanism.
  • the control unit 110 cooperates and operates with each component connected to the illustrated control unit 110.
  • the switch 140 controls the operation of the optical device 100 as a headlight, and is assumed to be operated by the driver of the vehicle 200.
  • the imaging unit 160 is a camera that acquires a moving image in front of the vehicle 200.
  • the image acquired by the imaging unit 160 is transmitted to the control unit 110, and image analysis is performed in the control unit 110.
  • image analysis is performed in the control unit 110.
  • the distance measuring unit 170 measures the distance to an object existing in front of the vehicle 200 and transmits this distance measurement data to the control unit 110.
  • the control unit 110 acquires the distance D between the vehicle ahead and extracted by image analysis.
  • the controller 110 can illuminate the front of the vehicle 200 by controlling each laser light source constituting the laser array 40.
  • the control unit 110 controls the laser array 40, so that the optical device 100 can be used as a general vehicle headlamp. Furthermore, the control unit 110 controls the laser array 40 so that the optical device 100 can project lines, symbols, marks, characters, and the like onto the road surface.
  • FIG. 7 is a flowchart for controlling the optical apparatus 100 according to the first embodiment of the present invention. Such a flowchart is executed by the control unit 110.
  • the optical device 100 when the optical device 100 is used as a headlight, control is performed to reduce illumination on a glass portion such as a windshield of an oncoming vehicle.
  • a glass portion such as a windshield of an oncoming vehicle is referred to as a characteristic structure in the claims.
  • step S101 when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S101 whether or not the switch 140 is on.
  • step S101 determines whether white light is emitted from the optical device 100.
  • step 101 determines whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
  • step S103 a captured image is acquired by the imaging unit 160, and subsequently, in step S104, the captured image of the imaging unit 160 is analyzed.
  • step S105 it is determined whether there is an oncoming vehicle based on the analyzed image. If the determination in step 105 is no, the process proceeds to step S109 to determine whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
  • step S105 determines whether the distance D between the oncoming vehicle and the distance measuring unit 170 is acquired.
  • FIG. 8 is a diagram showing a state of distance measurement of the distance D between the oncoming vehicle.
  • step S107 whether D ⁇ D 1 is determined. If the oncoming vehicle is only to present too remote, even inhibited illumination of the vehicle 200, since much meaningless, the distance between the oncoming vehicle only when D 1 is smaller than, to perform suppression of illumination To.
  • step S109 determines whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
  • step S107 determines whether the determination in step S107 is YES. If the determination in step S107 is YES, the process proceeds to step S108, and the laser array 40 is controlled so as to suppress illumination on the glass part of the oncoming vehicle.
  • FIG. 9 is a diagram showing an example of illumination by the optical device 100 according to the first embodiment of the present invention. As shown in FIG. 9, by controlling the optical device 100, it is possible to suppress the light incident on the eyes of the driver of the oncoming vehicle, reduce the burden on the driver of the oncoming vehicle, and improve safety. To do.
  • the optical device 100 As described above, according to the optical device 100 according to the present invention, it is possible to provide the optical device 100 having a simple and inexpensive configuration with a reduced number of parts, and in addition to the function as a headlight of a vehicle, Convenience is high because it has a function of suppressing lighting on the car.
  • FIG. 10 is a flowchart for controlling the optical device 100 according to the second embodiment of the present invention. Such a flowchart is executed by the control unit 110.
  • the optical device 100 performs illumination that emphasizes a characteristic structure near the road such as a curb or a guardrail.
  • step S201 when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S201 whether or not the switch 140 is on.
  • step S201 When the determination in step S201 is YES, the process proceeds to step S202, and the laser array 40 is controlled so that white light is emitted from the optical device 100.
  • step S203 the captured image is acquired by the imaging unit 160, and in the next step S204, the captured image acquired by the imaging unit 160 is analyzed.
  • step S205 it is determined whether or not characteristic structures such as curbs, guardrails, and center lines are present in the analyzed captured image.
  • Examples of the method for determining whether or not the characteristic structure portion is present in the analysis captured image in step S205 include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference. .
  • the position of the center line may be estimated from the road width or the like.
  • step S207 determines whether or not the engine is stopped. If the determination in step S207 is YES, the process proceeds to step S212 to end the process, and if the determination in step S207 is NO, the process returns to step S201 again.
  • step S206 the laser array 40 is set so as to emit white light from the optical device 100 and emit illumination light that emphasizes the determined characteristic structure. Control.
  • FIG. 11 is a diagram showing an illumination example of the characteristic structure portion by the optical device 100 according to the second embodiment of the present invention.
  • the characteristic structure portion illumination by the optical device 100 according to the present invention during the white illumination as the headlight of the vehicle 200, for example, enhanced illumination with a color (for example, blue) different from the white illumination is applied to the curbstone or the center line. Irradiate the characteristic structure such as
  • step S208 the captured image is acquired by the imaging unit 160, and in the next step S209, the captured image acquired by the imaging unit 160 is analyzed.
  • step S210 it is determined whether or not characteristic structures such as curbs, guardrails, and center lines are present in the analyzed captured image.
  • Examples of the method for determining whether or not the characteristic structure portion in step S210 exists in the analysis captured image include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference. .
  • the position of the center line may be estimated from the road width or the like.
  • step S207 determines whether or not the engine is stopped. If the determination in step S207 is YES, the process proceeds to step S212 to end the process, and if the determination in step S207 is NO, the process returns to step S201 again.
  • step 210 determines whether the determination in step 210 is YES. If the determination in step 210 is YES, the process proceeds to step S211, and the laser array 40 is controlled so as to emit illumination light that emphasizes the determined characteristic structure from the optical device 100.
  • highlighting illumination with a color different from the white illumination is applied to the characteristic structure portion such as a curb or a center line.
  • the optical device 100 it is possible to provide the optical device 100 having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, a curb or a guardrail is provided. Since it has a function of performing illumination that emphasizes a characteristic structure such as a center line, it is highly convenient.
  • the optical device 100 according to the present invention safety is improved by the optical device having a function of performing illumination that emphasizes characteristic structures such as curbs, guardrails, and center lines.
  • FIG. 12 is a flowchart for controlling the optical apparatus 100 according to the third embodiment of the present invention. Such a flowchart is executed by the control unit 110.
  • the vehicle 200 on which the optical device 100 is mounted is assumed to be a police vehicle, for example, and the license plate of the tracking vehicle that the vehicle 200 tracks with the optical device 100 It is characterized in that a tracking mode is provided for emphasizing illumination. Note that the number plate of the tracking vehicle is referred to as a characteristic structure in the claims.
  • FIG. 13 is a diagram showing the usage status of the tracking mode.
  • step S301 when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S301 whether or not the tracking mode is on. Whether the tracking mode is on or off is input to the control unit 110 by appropriate input means.
  • step S307 determines whether or not the engine is stopped. If the determination in step S307 is YES, the process proceeds to step S308 to end the process, and if the determination in step S307 is NO, the process returns to step S301 again.
  • step 301 If the determination in step 301 is YES, in the subsequent step S203, the captured image is acquired by the imaging unit 160, and in the next step S204, the captured image acquired by the imaging unit 160 is analyzed.
  • step S304 it is determined from the analyzed captured image whether there is a vehicle traveling ahead.
  • step S307 determines whether or not the engine is stopped. If the determination in step S307 is YES, the process proceeds to step S308 to end the process, and if the determination in step S307 is NO, the process returns to step S301 again.
  • step S305 the license plate portion of the vehicle traveling ahead is specified from the analysis captured image, and in step S306, the license plate portion is highlighted.
  • FIG. 14 is a diagram illustrating an illumination example of the license plate portion by the optical device 100 according to the third embodiment of the present invention.
  • the emphasized illumination of the license plate portion in step S306 the emphasized illumination with a color (for example, blue) different from the white illumination is applied to the license plate portion of the preceding vehicle.
  • a color for example, blue
  • the above-described highlighted illumination of the license plate portion can improve the legibility of the license plate of the vehicle that the vehicle 200 tracks, and can reduce tracking errors and the like.
  • the optical device 100 it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, a license plate Convenience is high because it has a function of performing illumination that emphasizes the part.
  • the functionality is improved by the optical device 200 having a function of performing illumination that emphasizes the license plate portion.
  • FIG. 15 is a diagram illustrating a flowchart for controlling the optical apparatus 100 according to the fourth embodiment of the present invention. Such a flowchart is executed by the control unit 110.
  • the optical device 100 performs illumination that emphasizes an obstacle on the road.
  • the obstacle on the road is referred to as a characteristic structure portion.
  • step S401 when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S401 whether or not the switch 140 is on.
  • step S401 determines whether white light is emitted from the optical device 100.
  • step S403 the captured image is acquired by the imaging unit 160, and in the next step S404, the captured image acquired by the imaging unit 160 is analyzed.
  • step S405 it is determined whether an obstacle exists in the analyzed captured image.
  • the method for determining whether an obstacle exists in the analysis captured image in step S405 include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference.
  • step S407 it is determined whether or not the engine is stopped. If the determination in step S407 is YES, the process proceeds to step S412 to end the process, and if the determination in step S407 is NO, the process returns to step S401 again.
  • step S406 the laser array 40 is controlled so as to emit white light from the optical device 100 and emit illumination light that emphasizes the determined obstacle.
  • FIG. 16 is a diagram illustrating an example of illumination of an obstacle by the optical device 100 according to the fourth embodiment of the present invention.
  • the obstacle illumination by the optical device 100 according to the present invention during the white illumination as the headlight of the vehicle 200, the obstacle is irradiated with, for example, enhanced illumination with a color different from the white illumination (for example, blue). To do.
  • Such highlighting illumination may be blinked.
  • the second laser light source 32 (green) and the third laser light source 33 (red) are incident on the unit laser array 30 that is incident on the unit hologram 50 that performs enhanced illumination. ) Is turned off and the output of the first laser light source 31 (blue) is turned on.
  • the scanning optical device 100 when scanning the unit hologram 50 that performs enhanced illumination, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser is turned off. Control is performed to turn on the output of the light source 31 (blue).
  • step S401 determines whether the determination in step S401 is NO. If the determination in step S401 is NO, the process proceeds to step S408.
  • step S408 the captured image is acquired by the imaging unit 160, and in the next step S409, the captured image acquired by the imaging unit 160 is analyzed.
  • step S410 it is determined whether an obstacle exists in the analyzed captured image.
  • a determination method based on a difference in color, a determination method based on an uneven shape, a determination method based on a height difference, and the like can be given.
  • step S407 it is determined whether or not the engine is stopped. If the determination in step S407 is YES, the process proceeds to step S412 to end the process, and if the determination in step S407 is NO, the process returns to step S401 again.
  • step 210 determines whether the determination in step 210 is YES. If the determination in step 210 is YES, the process proceeds to step S411, and the laser array 40 is controlled so as to emit illumination light that emphasizes the determined obstacle from the optical device 100.
  • the obstacle illumination is irradiated with a highlight illumination with a color different from the white illumination (for example, blue).
  • a highlight illumination with a color different from the white illumination (for example, blue).
  • Such highlighting illumination may be blinked.
  • the second laser light source 32 (green) and the third laser light source 33 are used in the unit laser array 30 that is incident on the unit hologram 50 that performs highlight illumination. Control is performed to turn off the output of (red) and turn on the output of the first laser light source 31 (blue).
  • the scanning optical device 100 when scanning the unit hologram 50 that performs enhanced illumination, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser is turned off. Control is performed to turn on the output of the light source 31 (blue).
  • an obstacle on the road can be recognized by the driver of the vehicle 200 by the above-described enhanced illumination.
  • the optical device 100 it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, an obstacle is also provided. Since it has a function of performing illumination that emphasizes, it is highly convenient.
  • the optical device 100 having a function of performing illumination that emphasizes an obstacle.
  • Illumination and illumination characteristic of the present invention may be performed by the optical device 100 independent of each other.
  • the optical device 100 of the present invention it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and has a characteristic other than the function as a vehicle headlamp. Since it has a function of suppressing or enhancing illumination with respect to the structure portion, convenience is improved, safety is improved, or functionality is improved.
  • the vehicle 200 equipped with the optical device 100 according to the present invention convenience is improved, safety is improved, or functionality is improved.
  • FIG. 17 is a flowchart for controlling the optical apparatus 100 according to the fifth embodiment of the present invention. Such a flowchart is executed by the control unit 110.
  • the optical device 100 when the optical device 100 is used as a headlight, the illumination on the human face is suppressed, that is, the control for reducing the illumination on the human face is performed. It is.
  • step S501 when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S501 whether or not the switch 140 is on.
  • step S501 determines whether white light is emitted from the optical device 100.
  • step 101 determines whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
  • step S503 a captured image is acquired by the imaging unit 160. Subsequently, in step S504, the captured image of the imaging unit 160 is analyzed.
  • step S505 it is determined whether or not a person's face has been recognized based on the analyzed image.
  • a well-known image analysis technique can be used. The person is assumed to be a pedestrian or an oncoming driver.
  • step S509 determines whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
  • step S505 determines whether the determination in step S505 is YES. If the determination in step S505 is YES, the process proceeds to step S506, and the distance D between the person recognized from the distance measuring unit 170 is acquired.
  • step S507 the whether D ⁇ D 1 is determined. If the recognized person is too far away, even if the lighting of the vehicle 200 is suppressed, there is not much meaning. Therefore, the lighting is suppressed only when the distance to the recognized person is smaller than D 1. To do.
  • step S509 determines whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
  • step S507 determines whether the determination in step S507 is YES. If the determination in step S507 is YES, the process proceeds to step S508, and the laser array 40 is controlled so as to suppress illumination on the glass part of the oncoming vehicle.
  • FIG. 18 is a diagram showing an example of illumination by the optical device 100 according to the fifth embodiment of the present invention.
  • FIG. 18A shows a state where the illumination when the optical device 100 does not recognize a person is viewed from the driver's seat of the vehicle 200
  • FIG. 18B shows the case where the optical device 100 recognizes a person.
  • a state in which the illumination is viewed from the driver's seat of the vehicle 200 is shown.
  • FIG. 18B when the optical device 100 recognizes a person, the illumination on the person's face (especially around the eyes) is suppressed (or the light amount is set to 0).
  • the laser array 40 is controlled.
  • the optical device 100 it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of components, and in addition to the function as a headlight of a vehicle, Since it has a function of suppressing illumination on the face, it is highly convenient.
  • the optical device 100 having a function of suppressing illumination on a human face.
  • FIG. 19 is a block diagram of an optical device 100 according to the sixth embodiment of the present invention.
  • the vehicle 200 on which the optical device 100 is mounted is assumed to be, for example, a police vehicle, and the optical device 100 emphasizes and illuminates a specific person.
  • a mode is provided.
  • the specific person is assumed to be a criminal who has been appointed or a missing person.
  • control unit 110 is a general-purpose information processing including a CPU (Central Processing Unit), a ROM (Read Only Memory) that holds a program operating on the CPU, and a RAM (Random Access Memory) that is a work area of the CPU. Mechanism.
  • the control unit 110 cooperates and operates with each component connected to the illustrated control unit 110.
  • the mode selection switch 175 is a switch that makes it possible to select whether to use the optical device 100 as the follow-up mode, and is assumed to be operated by the driver of the vehicle 200.
  • the imaging unit 160 is a camera that acquires a moving image in front of the vehicle 200.
  • the image acquired by the imaging unit 160 is transmitted to the control unit 110, and the control unit 110 performs image analysis.
  • the database 185 stores face data of criminals, missing persons, and the like.
  • the face recognition unit 180 matches the analysis image obtained by the imaging unit 160 with the database 185, thereby identifying a specific person. Recognize the face.
  • a face recognition technique a well-known one can be used.
  • the controller 110 can illuminate the front of the vehicle 200 by controlling each laser light source constituting the laser array 40.
  • the control unit 110 controls the laser array 40, so that the optical device 100 can be used as a general vehicle headlamp. Furthermore, the control unit 110 controls the laser array 40 so that the optical device 100 can project lines, symbols, marks, characters, and the like onto the road surface.
  • FIG. 20 is a flowchart for controlling the optical apparatus 100 according to the sixth embodiment of the present invention.
  • step S601 when the engine (not shown) of the vehicle 200 is started by the driver, subsequently, in step S601, the state of the mode selection switch 175 is referred to and it is determined whether or not the follow-up mode is on.
  • step S601 determines whether or not the engine is stopped. If the determination in step S607 is YES, the process proceeds to step S608 to end the process, and if the determination in step S607 is NO, the process returns to step S601 again.
  • step S601 determines whether the determination in step S601 is YES, in the subsequent step S603, a captured image is acquired by the imaging unit 160, and in the next step S604, the captured image acquired by the imaging unit 160 is analyzed.
  • step S604 the face recognition unit 180 determines whether a specific person has been recognized as a face.
  • step S604 determines whether or not the engine is stopped. If the determination in step S607 is YES, the process proceeds to step S608 to end the process, and if the determination in step S607 is NO, the process returns to step S601 again.
  • FIG. 21 is a view showing an example of illumination by the optical device 100 according to the sixth embodiment of the present invention, and shows a state in which the illumination by the optical device 100 is viewed from the driver's seat of the vehicle 200.
  • the face illumination of the specific person is irradiated with the highlight illumination with a color different from the white illumination (for example, blue).
  • the optical device 100 is used as a headlamp, it is possible to increase the amount of light of only such an emphasizing illumination unit.
  • FIG. 22 is a diagram for explaining another example of illumination.
  • the laser array 40 is controlled so as to illuminate not only the face part of the specific person but also the part under the foot of the specific person.
  • the above-described emphasis illumination of the specific person can make the specific person that the vehicle 200 follows stand out, and can reduce following errors.
  • the optical device 100 it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a headlight of a vehicle, a specific person Since it has a function of performing illumination that emphasizes, it is highly convenient.
  • the functionality is improved by the optical device 100 having a function of performing illumination to emphasize a specific person.
  • Illumination and illumination characteristic of the present invention may be performed by the optical device 100 independent of each other.
  • FIG. 23 is a diagram showing a configuration of a lighting apparatus 300 according to the seventh embodiment of the present invention.
  • the laser array 230 includes a plurality of unit laser light sources 231 that emit laser light having a predetermined wavelength, and is a light source of the illumination device 300 according to the present invention.
  • a plurality of unit laser light sources 31 are described as an example of a one-dimensional array in which the plurality of unit laser light sources 31 are arranged in the vertical direction on the paper surface.
  • a two-dimensional array in which 231 is arranged can also be configured.
  • the plurality of unit laser light sources 231 in the laser array 230 are configured to be capable of on / off control.
  • a plurality of integrator rods 250 are provided corresponding to each unit laser light source 231 constituting the laser array 230.
  • the integrator rod 250 is a glass quadrangular columnar member and has an incident end 251 and an exit end 252 for light. In the integrator rod 250, the light incident from the incident end 251 is totally reflected internally, and the illuminance distribution of the light emitted from the output end 252 is made uniform.
  • the lighting device 300 may employ a form such as a fly-eye lens or a combination of a condenser lens and a fly-eye lens. Furthermore, a quadrangular prism-shaped member having a mirror surface on the inner surface may be used.
  • the integrator rod 250 or the like for uniformizing the illuminance distribution of light is expressed as a “homogenized optical system” in the claims.
  • a plurality of incident end lenses 235 are arranged between a plurality of unit laser light sources 231 constituting the laser array 30 and an integrator rod 250 corresponding to each unit laser light source 231.
  • a convex lens that collects light is used as the incident end lens 235.
  • the unit laser light source 231 and the corresponding incident end lens 235 and integrator rod 250 are defined as unit units.
  • FIG. 24 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the embodiment of the present invention.
  • Laser light emitted from the plurality of unit laser light sources 231 enters the plurality of incident end lenses 235, and light emitted from the plurality of incident end lenses 235 enters the plurality of integrator rods 250.
  • the light incident on the plurality of integrator rods 250 is repeatedly reflected inside, and the light emitted from the exit end 252 has a uniform illuminance distribution.
  • the illuminating device 300 of FIG. 23 in which a plurality of such unit units are arranged, it is possible to make the illuminance uniform in the irradiation region using the plurality of unit laser light sources 231 as a light source, and the area of the light source is approximately Since the cross-sectional area of the integrator rod 250 is enlarged, even when an observer mistakenly looks into the light-emitting portion of the illumination device 300, the design is in consideration of safety compared to the method of using a point light source to emit light. Become.
  • FIG. 25 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the eighth embodiment of the present invention.
  • a convex lens is used as the incident end lens 235.
  • the optical axis of the incident end lens 235 is arranged in a state shifted from the center of the laser beam emitted from the unit laser light source 231. .
  • FIG. 26 is a view of the incident end lens 235 viewed from the direction of the optical axis. As shown in FIG. 26, the incident end lens 235 is divided into four regions A, B, C, and D.
  • the center of the laser light emitted from the unit laser light source 231 is arranged so as to enter the region A in a certain unit unit, and the region in the next unit unit. In the next unit unit, it is arranged so as to enter the region C. In the next unit unit, it is arranged so as to enter the region D. Further, in the next certain unit unit, The illumination device 300 is configured by arranging the unit units so as to be incident on the region A and arranging the unit units in a cycle such as...
  • the irradiation areas of the four light distribution angle patterns by the individual unit units are overlapped to form a more uniform illumination area as a whole.
  • the incident end lens 235 is divided into four regions A, B, C, and D and the center of the laser beam emitted from the unit laser light source 231 is incident on each region is described.
  • the incident end lens 235 may be physically divided to use a lens divided into 1 ⁇ 4.
  • the incident end lens 235 is divided into regions, it is not limited to four regions, and may be divided into two or more regions depending on the use of the lighting device 300.
  • FIG. 27 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the ninth embodiment of the present invention.
  • the ninth embodiment has an incident end lens 235 similar to that of the seventh embodiment, but also has an exit end lens 255 into which light emitted from the exit end 252 of the integrator rod 250 is incident. It is a feature.
  • the optical axis of the exit end lens 255 is arranged in a state shifted from the center of the laser beam emitted from the unit laser light source 231.
  • the concept of arranging the exit end lens 255 in this way is the same as in the eighth embodiment. That is, the exit end lens 255 is also divided into four regions A, B, C, and D as in FIG.
  • the light emitted from the integrator rod 250 is made incident on any one of the four regions A, B, C, and D of the emission end lens 255, so that it is emitted from the emission end lens 255.
  • the pattern of the light distribution angle of the emitted light is one of four patterns.
  • the illumination device 300 there is a center of light emitted from the integrator rod 250 (positionally, substantially the center of the laser light emitted from the unit laser light source 231).
  • the unit unit is arranged so as to be incident on the region A, the next unit unit is arranged so as to be incident on the region B, the next unit unit is arranged so as to be incident on the region C, and the next unit unit is arranged. Is arranged so as to be incident on the region D, and is arranged so as to be incident on the region A in the next certain unit unit.
  • the irradiation areas of the four light distribution angle patterns by the individual unit units are overlapped to form a more uniform illumination area as a whole.
  • the exit end lens 255 is divided into four regions A, B, C, and D, and the center of the laser light emitted from the unit laser light source 231 is incident on each region.
  • the exit end lens 255 may be physically divided to use a lens divided into 1 ⁇ 4.
  • the region is not limited to four regions, and may be divided into two or more regions depending on the application of the lighting device 300.
  • precise light distribution control can be performed by the plurality of unit laser light sources 231 and safety is improved.
  • FIG. 28 is a diagram for explaining illumination by a unit unit of the illumination apparatus 300 according to the tenth embodiment of the present invention.
  • the exit end lens 255 is arranged on the exit end 52 side of the integrator rod 250 so that the light emitted from the integrator rod 250 is incident on the exit end lens 55.
  • the prism 260 is disposed on the exit end 252 side of the integrator rod 250. Then, the light emitted from the emission end 252 of the integrator rod 250 is incident on the prism 260. The light incident on the prism 260 is refracted in the prism 260 and is emitted from the prism 260.
  • the light distribution angle of the light emitted from the integrator rod 250 belonging to each unit unit can be adjusted as appropriate, so that a more uniform illumination region can be formed as a whole.
  • the illumination device 300 As described above, also with the illumination device 300 according to the tenth embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
  • FIG. 29 is a diagram for explaining illumination by a unit unit of the illumination apparatus 300 according to the eleventh embodiment of the present invention.
  • the prism 260 is disposed on the exit end 252 side of the integrator rod 250 so that the light emitted from the integrator rod 250 is incident on the prism 260.
  • the hologram 270 is arranged on the exit end 252 side of the integrator rod 250. Then, the light emitted from the emission end 252 of the integrator rod 250 is incident on the hologram 270. The light incident on the hologram 270 is diffused from the hologram 270 based on the pattern recorded on the hologram 270.
  • the hologram 270 is suitable for the illumination device 300 according to the present invention because it has excellent light transmittance and allows selection of the diffusion angle of the emitted diffused light.
  • the light distribution angle of the light emitted from the integrator rod 250 belonging to each unit unit can be adjusted as appropriate, so that a more uniform illumination region can be formed as a whole.
  • the illumination device 300 As described above, also with the illumination device 300 according to the eleventh embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
  • FIG. 30 is a diagram showing a configuration of a lighting apparatus 300 according to the twelfth embodiment of the present invention.
  • the traveling direction of the laser light emitted from the unit laser light source 231 and the longitudinal direction of the corresponding integrator rod 50 are parallel.
  • the longitudinal direction of the integrator rod 250 is defined as a direction connecting the incident end 251 and the emission end 252.
  • the angle between the longitudinal direction of the integrator rod 250 and the traveling direction of the laser light emitted from the unit laser light source 231 is greater than 0 °. It is characterized by making.
  • the illuminating device 300 which concerns on 12th Embodiment, since it will illuminate radially, the illuminating device 300 which the designability improved can be provided.
  • the illumination device 300 As described above, also with the illumination device 300 according to the twelfth embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
  • each unit laser light source 231 of the laser array 230 is modulated, that is, each unit laser light source 231 is selectively turned on / off or dimmed.
  • An arbitrary illumination distribution can be created by selectively making the laser light incident only on the corresponding integrator rod 250.
  • FIG. 31 is a diagram showing a configuration of a lighting apparatus 300 according to the thirteenth embodiment of the present invention.
  • the unit laser light sources 231 are described based on those arranged in a one-dimensional direction.
  • the arrangement direction of the plurality of unit laser light sources 231 is not limited to the one-dimensional direction.
  • the unit laser light sources 231 are arranged in an oblique manner.
  • the illuminating device 300 for example, since illumination is performed obliquely, the illuminating device 300 with improved design can be provided.
  • the illumination device 300 As described above, also with the illumination device 300 according to the thirteenth embodiment, it is possible to perform precise light distribution control by the plurality of unit laser light sources 31 and to improve safety.
  • the lighting device 300 according to the present invention, it is possible to provide a lighting device with improved design.
  • embodiments configured by arbitrarily combining the lighting devices 300 according to the first to thirteenth embodiments also belong to the category of the present invention.
  • FIG. 32 is a diagram showing a configuration of a lighting apparatus 500 according to the fourteenth embodiment of the present invention.
  • FIG. 33 is a perspective view of a lighting apparatus 500 according to a fourteenth embodiment of the present invention.
  • the laser array 430 includes a plurality of unit laser light sources 431 that emit laser light having a predetermined wavelength, and is a light source of the illumination device 500 according to the present invention.
  • a description will be given by taking as an example a one-dimensional array in which a plurality of unit laser light sources 431 are arranged in the vertical direction on the paper surface of FIG. 32, but a direction orthogonal to the one-dimensional arrangement direction.
  • a two-dimensional array in which a plurality of unit laser light sources 431 are arrayed (in the direction perpendicular to the paper surface) can also be configured.
  • Each of the plurality of unit laser light sources 431 in the laser array 430 is configured to be capable of on / off control.
  • a plurality of unit laser light sources 431 constituting the laser array 430 and a plurality of incident end lenses 435 corresponding to the unit laser light sources 431 are arranged.
  • a convex lens that collects light is used as the incident end lens 435.
  • a light guide member 450 is disposed on the side of the incident end lens 435 where the laser array 30 is not disposed.
  • the light guide member 450 has a structure in which a high refractive index layer 452 is sandwiched between two opposing low refractive index layers 451.
  • the light incident on the incident end 455 of the light guide member 450 reaches the emission end 456 by total reflection at the boundary between the low refractive index layer 451 and the high refractive index layer 452, as in a normal optical fiber.
  • the light guide member 450 can be formed of two kinds of organic polymer materials having different refractive indexes, but may have a simple structure in which the reflectors are opposed to each other. In this case, light propagates in the air.
  • a hologram 480 is disposed on the light exit end 456 of the light guide member 450. Light emitted from the emission end 456 of the light guide member 450 is incident on the hologram 480. The light incident on the hologram 480 is emitted from the hologram 480 as diffused light based on the pattern recorded on the hologram 480.
  • the hologram 480 is excellent for the light transmittance and is suitable for the illumination device 500 according to the present invention because the diffusion angle of the emitted diffused light can be selected.
  • a lens array or the like is used instead of the hologram 480. It may be.
  • FIG. 33 is a view for explaining illumination by the illumination device 500 according to the fourteenth embodiment of the present invention.
  • Laser light emitted from the plurality of unit laser light sources 431 enters the plurality of incident end lenses 435, and light emitted from the plurality of incident end lenses 435 passes from the incident end 455 to the high refractive index layer of the light guide member 450. 452.
  • the light that has entered the light guide member 450 propagates to the output end 456 basically without leaking out of the high refractive index layer 452 due to total reflection occurring at the interface between the high refractive index layer 452 and the low refractive index layer 451. Then, the light is emitted from the emission end 456.
  • the light emitted from the emission end 456 enters the hologram 480, and diffused light is emitted from the hologram 480 based on the pattern recorded on the hologram 480.
  • the light incident on the light guide member 450 is repeatedly reflected inside, and the light emitted from the emission end 456 has a uniform illuminance distribution.
  • an illumination device 500 it is possible to make the illuminance and luminance uniform in the irradiation region using the plurality of unit laser light sources 431 as light sources, so that safety of eyes is taken into consideration. Designed.
  • a hologram 480 is provided at the emission end 456 of the light guide member 450, and diffused light is emitted from the hologram 480.
  • the illumination device 500 of the present invention it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
  • FIG. 35 is a view for explaining illumination by the illumination apparatus 500 according to the fifteenth embodiment of the present invention.
  • a plurality of convex lenses are provided as the incident end lens 435.
  • the incident end lens 435 is replaced with a plurality of convex lenses.
  • a cylindrical lens 460 is provided. The cylindrical lens 460 uses laser light emitted from the plurality of unit laser light sources 431 as a condenser lens.
  • the number of parts can be greatly reduced, so that there is an advantage that the illuminating device 500 can be provided at a low cost by improving the manufacturability.
  • the illumination device 500 it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
  • FIG. 35 is a view for explaining illumination by the illumination device 100 according to the sixteenth embodiment of the present invention.
  • a plurality of convex lenses are provided as the incident end lens 435.
  • the incident end lens 435 is replaced with a plurality of convex lenses.
  • a toric lens 470 is provided.
  • the toric lens 470 uses laser light emitted from a plurality of unit laser light sources 431 as a condenser lens.
  • toric lens 470 is used instead of a plurality of convex lenses, the number of parts can be greatly reduced, so that there is an advantage that the illuminating device 500 can be provided at a low cost by improving the manufacturability.
  • the toric lens 470 as the incident end lens 35 when a light amount is necessary at the center of the illumination area of the illumination device 500.
  • the illumination device 500 it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
  • FIG. 36 is a view for explaining illumination by the illumination device 500 according to the seventeenth embodiment of the present invention.
  • the light guide member 450 is a flat plate, but in the lighting device 500 according to the seventeenth embodiment, the light guide member 450 is molded by hot pressing. It is a feature point.
  • the light guide member 450 is manufactured with the organic polymer material of the high refractive index layer 452 and the organic polymer material of the low refractive index layer 451, but the light guide member manufactured with the organic polymer material 450 can be easily molded by hot pressing using an appropriate mold. With such molding, the incident end 455 is rectangular in accordance with the incidence of laser light from the laser array 430, while the emission end 456 is, for example, substantially V-shaped as shown. It becomes possible.
  • organic polymer material constituting the low refractive index layer 451 for example, a fluorine-based epoxy resin, a fluoroacrylic acid polymer, or the like can be used, and as the organic polymer material constituting the high refractive index layer 452, May be polycarbonate, PMMA (polymethyl methacrylate), or the like.
  • the method of forming the light guide member 450 by hot pressing has been described.
  • the light guide member 450 can be formed by, for example, extrusion molding in addition to the hot press molding. .
  • the illuminating device 500 which processes the light guide member 450 by shaping
  • the design properties are further increased by making the recording pattern of the hologram 480 different on the 480a side and the 480b side, for example.
  • the illumination device 500 according to the seventeenth embodiment it is possible to perform precise light distribution control with the plurality of unit laser light sources 431, and safety is improved.
  • each unit laser light source 431 of the laser array 430 is modulated, that is, each unit laser light source 431 is selectively turned on / off or dimmed.
  • an arbitrary illumination distribution can be created by selectively allowing laser light to enter the light guide member 450.
  • the material used for the light guide member 450 a material other than the organic polymer material can be used.
  • a glass material laminated in addition to the polymer, a photonic crystal, or the like can be used as the material of the light guide member 450.
  • the high refractive index layer 452 can be formed by doping elements such as Ge and P, and elements such as B and F can be doped.
  • the low refractive index layer 451 can be obtained.
  • the illuminating device 500 which concerns on this invention, the illuminating device 500 with which the design property improved can be provided.
  • the manufacturability of the illuminating device 500 improves.
  • an optical device having a configuration capable of controlling light color to some extent, but there has been a problem that functionality is not sufficient in terms of more precise color change and light distribution control. . Further, only the function as a vehicle headlamp is clearly described, and consideration is not given to further improvements in convenience and safety for the driver.
  • the optical device of the present invention it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and has a characteristic structure in addition to the function as a vehicle headlamp. Because it has the function to suppress or emphasize the lighting on the part, it can improve convenience, improve safety, or improve functionality, and industrial applicability Very big.
  • unit unit 30 unit laser array 31 first laser light source 32 second laser light source 33 third laser light source 40 laser array 50 unit hologram 51 ... first storage area 52 ... second storage area 53 ... third storage area 60 ... hologram 70 ... mirror (scanning section) DESCRIPTION OF SYMBOLS 100 ... Optical apparatus 110 ... Control part 140 ... Switch 160 ... Imaging part 170 ... Distance measuring part 175 ... Mode selection switch 180 ... Face recognition part 185 ... Database 200 ... Vehicle 230 ... Laser array 231 ... Unit laser light source 235 ... Incident end lens 250 ... Integrator rod 251 ... Incident end 252 ... Outlet end 255 ... Outlet end lens 260 ... Prism 270 ... Hologram 300 ...
  • Illumination device 430 Laser array 431 ... Unit laser light source 435 ... Incident end lens 450 ... Light guide member 451 ... Low refractive index layer 452 ... High refractive index layer 455 ... Incident end 456 ... Outgoing end 460 ; Cylindrical lens 470 ... Toric lens 480 ... Hologram 500 ... lighting device

Abstract

In order to provide an optical device that is very convenient and that has a function for suppressing illumination with respect to an opposing vehicle, the optical device 100 of the present invention is mounted on a moving body and illuminates a road, wherein the optical device is characterized by having: a laser light source for emitting a laser light; a scanning unit for reflecting the laser light emitted from the laser light source and emitting a scanning light; an optical element on which the scanning light is incident, the optical element illuminating a road by emitting a light; an imaging unit for capturing an image of the conditions around a vehicle; and a determining unit for determining whether a unique structure is present by analyzing the image captured by the imaging unit, the optical device suppressing or increasing illumination toward the unique structure after it is determined that a unique structure is present using the determination unit.

Description

光学装置及び光学装置が搭載された車両、照明装置Optical device, vehicle equipped with optical device, and lighting device
　本発明は、路面などを照明する光学装置及びこのような光学装置が搭載された車両に関する。また、本発明は、レーザーを光源とする照明装置に関する。 The present invention relates to an optical device for illuminating a road surface and the like and a vehicle equipped with such an optical device. The present invention also relates to an illumination device using a laser as a light source.
　従来、ハロゲンなどのインコヒーレント系の光源を用いた車両用前照灯光学系が知られている。このような車両用前照灯光学系では、光源の周囲に配置されたリフレクタの反射面などにより配光パターンを作り、光源の光をそこに反射させて、前方に投影させている。 Conventionally, a vehicle headlamp optical system using an incoherent light source such as a halogen is known. In such a vehicle headlamp optical system, a light distribution pattern is created by a reflecting surface of a reflector disposed around the light source, and the light from the light source is reflected there and projected forward.
　これに対して、単一光源とリフレクタの組み合わせに比べて、より自由な配光制御を行うために、ＬＥＤ等の複数の光源を用い、屈折などにより前照灯の配光パターンや色を制御することが提案されている。 On the other hand, compared to the combination of a single light source and a reflector, the light distribution pattern and color of the headlamps are controlled by refraction, etc. using multiple light sources such as LEDs in order to perform more free light distribution control. It has been proposed to do.
　例えば、特許文献１（特表２０１４－５１９１６０号公報）には、発光色の異なる複数のＬＥＤを備えることを特徴とする車両用灯具が開示されている　。 For example, Patent Document 1 (Japanese Patent Publication No. 2014-519160) discloses a vehicular lamp characterized by including a plurality of LEDs having different emission colors.
　また、　従来、光源としての発光ダイオードのアレイと、発光ダイオードによって励起される蛍光材料とからなる照明装置が提案されている。 In addition, conventionally, an illumination device has been proposed that includes an array of light emitting diodes as light sources and a fluorescent material excited by the light emitting diodes.
　例えば、特許文献２（特表２０１２－５１６５３４号公報）には、光源のアレイと、該光源のアレイと前記光源からの光を放出するための光出力窓との間に配置される遠隔蛍光体層及び／又は散乱層と、を有する照明システムが開示されている。
特表２０１４－５１９１６０号公報 特表２０１２－５１６５３４号公報 For example, Patent Document 2 (Japanese Patent Publication No. 2012-516534) discloses a remote phosphor disposed between an array of light sources and an array of light sources and a light output window for emitting light from the light sources. An illumination system having a layer and / or a scattering layer is disclosed.
Special table 2014-519160 gazette Special table 2012-516534 gazette
　しかしながら、上記のような従来では、ある程度の光色制御が可能な構成の光学装置を提供することは可能であるが、より緻密な色の変化や、配光制御という観点では、機能性が十分でない、という問題があった。また、あくまでも車両の前照灯としての機能のみが明示されており、運転者の利便性や安全性の更なる向上といった点については配慮されていない。 However, in the related art as described above, it is possible to provide an optical device having a configuration capable of controlling light color to some extent, but it has sufficient functionality in terms of more precise color change and light distribution control. There was a problem of not. Further, only the function as a vehicle headlamp is clearly described, and consideration is not given to further improvements in convenience and safety for the driver.
　また、上記のような従来の照明装置は、光源のアレイとダイオードが用いられているので、精密な配光制御が困難である、という問題があった。そこで、より精密な配光制御を行うために、レーザーアレイを照明装置の光源として用いることが考えられる。 Also, the conventional lighting device as described above has a problem that precise light distribution control is difficult because an array of light sources and a diode are used. Therefore, in order to perform more precise light distribution control, it is conceivable to use a laser array as a light source of an illumination device.
　ただし、レーザーアレイから出射されるレーザー光は、安全性の観点から適宜拡散する必要があるが、レンズを利用してレーザー光を発散させるのみでは、再度、エネルギー密度が高い状態にレーザー光が収束可能であるために、照明装置としての安全性に関しては別途何らかの対策を取らなければならない、という問題があった。 However, the laser light emitted from the laser array needs to be appropriately diffused from the viewpoint of safety, but the laser light converges again to a high energy density by simply diverging the laser light using a lens. In order to be possible, there has been a problem that some measures must be taken for the safety of the lighting device.
　本発明は以上のような課題を解決するためのものであり、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光を反射し、走査光を射出する走査部と、前記走査光が入射され、路面に光を出射することで照明を行う光学素子と、車両周辺の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し特徴的構造部が存在するかを判定する判定部と、を有し、前記判定部で特徴的構造部が存在すると判定すると、特徴的構造部への照射を抑制するか、又は、強調することを特徴とする。 The present invention is for solving the above problems, and an optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light; A scanning unit that reflects laser light emitted from the laser light source and emits scanning light, an optical element that illuminates by being incident on the road and emitting light to the road surface, and an image of the surroundings of the vehicle An image pickup unit that analyzes the image picked up by the image pickup unit and determines whether or not the characteristic structure portion exists, and the determination unit determines that the characteristic structure portion exists. It is characterized in that irradiation to the structure portion is suppressed or emphasized.
　また、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光が入射され、路面に光を出射することで照明を行う光学素子と、車両周辺の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し特徴的構造部が存在するかを判定する判定部と、を有し、前記判定部で特徴的構造部が存在すると判定すると、特徴的構造部への照射を抑制するか、又は、強調することを特徴とする。 An optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light and a laser light emitted from the laser light source are incident on the road surface. An optical element that performs illumination by emitting light, an imaging unit that captures an image of the surroundings of the vehicle, and a determination unit that analyzes an image captured by the imaging unit and determines whether a characteristic structure unit exists. And when the determination unit determines that the characteristic structure portion exists, the irradiation to the characteristic structure portion is suppressed or emphasized.
　また、本発明に係る光学装置は、前記特徴的構造部が対向車のガラス部分であり、照射の抑制を行うことを特徴とする。 Further, the optical device according to the present invention is characterized in that the characteristic structure portion is a glass portion of an oncoming vehicle and suppresses irradiation.
　また、本発明に係る光学装置は、前記特徴的構造部が縁石、ガードレール、センターラインであり、照射の強調を行うことを特徴とする。 Further, the optical device according to the present invention is characterized in that the characteristic structure portion is a curbstone, a guardrail, or a centerline, and performs enhancement of irradiation.
　また、本発明に係る光学装置は、前記特徴的構造部がナンバープレートであり、照射の強調を行うことを特徴とする。 Also, the optical device according to the present invention is characterized in that the characteristic structure portion is a license plate and emphasizes irradiation.
　また、本発明に係る光学装置は、前記特徴的構造部が路上の障害物であり、照射の強調を行うことを特徴とする。 Further, the optical device according to the present invention is characterized in that the characteristic structure portion is an obstacle on a road and emphasizes irradiation.
　また、本発明に係る光学装置は、前記光学素子がホログラムであり、前記ホログラムから出射される光がホログラム再生像であることを特徴とする。 The optical device according to the present invention is characterized in that the optical element is a hologram, and the light emitted from the hologram is a hologram reproduction image.
　また、本発明に係る車両は、前記のいずれかに記載の光学装置が搭載された車両である。 Further, a vehicle according to the present invention is a vehicle equipped with any of the optical devices described above.
　また、本発明は以上のような課題を解決するためのものであり、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光が入射され、路面に光を出射することで照明を行う光学素子と、前記移動体前方の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し人が存在するかを判定する判定部と、を有し、前記判定部で人が存在すると判定すると、人の顔面への照射を抑制することを特徴とする。 In addition, the present invention is for solving the above-described problems, and an optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light. An optical element that is illuminated by laser light emitted from the laser light source and emits light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit And determining whether or not a person is present, and if the determination unit determines that a person is present, irradiation to a human face is suppressed.
　また、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光を反射し、走査光を射出する走査部と、前記走査光が入射され、路面に光を出射することで照明を行う光学素子と、前記移動体前方の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し人が存在するかを判定する判定部と、を有し、前記判定部で人が存在すると判定すると、人の顔面への照射を抑制することを特徴とする。 An optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and includes a laser light source that emits laser light, a laser light emitted from the laser light source, and a scanning light. A scanning unit that emits light, an optical element that illuminates by emitting light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit A determination unit that analyzes and determines whether a person is present, and if the determination unit determines that a person is present, the irradiation to the human face is suppressed.
　また、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光が入射され、路面に光を出射することで照明を行う光学素子と、前記移動体前方の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し特定の人物の顔を認識する顔認識部と、を有し、前記顔認識部で認識した人物を強調する照明を行うことを特徴とする。 An optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and a laser light source that emits laser light and a laser light emitted from the laser light source are incident on the road surface. An optical element that performs illumination by emitting light, an imaging unit that captures an image of a state in front of the moving body, and a face recognition unit that analyzes an image captured by the imaging unit and recognizes a face of a specific person. And lighting for emphasizing the person recognized by the face recognition unit.
　また、本発明に係る光学装置は、移動体に搭載され、路面を照明する光学装置であって、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光を反射し、走査光を射出する走査部と、前記走査光が入射され、路面に光を出射することで照明を行う光学素子と、前記移動体前方の様子を撮像する撮像部と、前記撮像部で撮像した画像を解析し特定の人物の顔を認識する顔認識部と、を有し、前記顔認識部で認識した人物を強調する照明を行うことを特徴とする。 An optical device according to the present invention is an optical device that is mounted on a moving body and illuminates a road surface, and includes a laser light source that emits laser light, a laser light emitted from the laser light source, and a scanning light. A scanning unit that emits light, an optical element that illuminates by emitting light to the road surface, an imaging unit that captures the state in front of the moving body, and an image captured by the imaging unit A face recognition unit that analyzes and recognizes the face of a specific person, and performs illumination that emphasizes the person recognized by the face recognition unit.
　また、本発明に係る光学装置は、前記光学素子がホログラムであり、前記ホログラムから出射される光がホログラム再生像であることを特徴とする。 The optical device according to the present invention is characterized in that the optical element is a hologram, and the light emitted from the hologram is a hologram reproduction image.
　また、本発明に係る車両は、前記のいずれかに記載の光学装置が搭載された車両である。 Further, a vehicle according to the present invention is a vehicle equipped with any of the optical devices described above.
　また、本発明は以上のような課題を解決するためのものであり、本発明に係る照明装置は、レーザー光を射出する複数のレーザー光源と、前記複数のレーザー光源に対応して配される複数の均一化光学系と、からなることを特徴とする。 Moreover, this invention is for solving the above subjects, and the illuminating device based on this invention is distribute | arranged corresponding to the several laser light source which inject | emits a laser beam, and the said several laser light source. And a plurality of uniformizing optical systems.
　また、本発明に係る照明装置は、前記複数のレーザー光源のうち、所定のレーザー光源がオンオフされるか、又は、減光されることを特徴とする。 Also, the illumination device according to the present invention is characterized in that a predetermined laser light source among the plurality of laser light sources is turned on or off or dimmed.
　また、本発明に係る照明装置は、前記複数のレーザー光源と、前記複数の均一化光学系との間に、複数の入射端レンズが配され、前記複数のレーザー光源から出射されたレーザー光が、前記複数の入射端レンズに入射し、前記複数の入射端レンズから出射された光が、前記複数の均一化光学系に入射することを特徴とする。 In the illumination device according to the present invention, a plurality of incident end lenses are arranged between the plurality of laser light sources and the plurality of uniformizing optical systems, and laser light emitted from the plurality of laser light sources The light incident on the plurality of incident end lenses and emitted from the plurality of incident end lenses is incident on the plurality of uniformizing optical systems.
　また、本発明に係る照明装置は、前記複数の入射端レンズの光軸は、前記複数のレーザー光源から出射されたレーザー光の中心からずれていることを特徴とする。 Further, the illumination device according to the present invention is characterized in that optical axes of the plurality of incident end lenses are deviated from the centers of the laser beams emitted from the plurality of laser light sources.
　また、本発明に係る照明装置は、前記複数の均一化光学系の前記複数のレーザー光源が配されていない側の端部に、複数の出射端レンズが配され、前記複数の均一化光学系から出射される光が、出射端レンズに入射することを特徴とする。 Further, in the illumination device according to the present invention, a plurality of emission end lenses are arranged at an end of the plurality of homogenization optical systems on the side where the plurality of laser light sources are not arranged, and the plurality of homogenization optical systems The light emitted from the light enters the exit end lens.
　また、本発明に係る照明装置は、前記複数の出射端レンズの光軸は、前記複数のレーザー光源から出射されたレーザー光の中心からずれていることを特徴とする。 Further, the illumination device according to the present invention is characterized in that the optical axes of the plurality of emission end lenses are deviated from the centers of the laser beams emitted from the plurality of laser light sources.
　また、本発明に係る照明装置は、前記複数の均一化光学系の前記複数のレーザー光源が配されていない側の端部に、プリズムが配され、前記複数の均一化光学系から出射される光が、前記プリズムに入射することを特徴とする。 In the illumination device according to the present invention, a prism is disposed at an end of the plurality of uniformizing optical systems on the side where the plurality of laser light sources are not disposed, and is emitted from the plurality of uniformizing optical systems. The light is incident on the prism.
　また、本発明に係る照明装置は、前記複数の均一化光学系の前記複数のレーザー光源が配されていない側の端部に、ホログラムが配され、前記複数の均一化光学系から出射される光が、前記ホログラムに入射することを特徴とする。 In the illumination device according to the present invention, a hologram is disposed at an end portion of the plurality of uniformizing optical systems on the side where the plurality of laser light sources are not disposed, and is emitted from the plurality of uniformizing optical systems. The light is incident on the hologram.
　また、本発明に係る照明装置は、前記複数の均一化光学系の長手方向と、前記複数のレーザー光源から出射されるレーザー光の進行方向とが、０°より大きい角度をなすことを特徴とする。 Further, the illumination device according to the present invention is characterized in that a longitudinal direction of the plurality of uniformizing optical systems and a traveling direction of laser light emitted from the plurality of laser light sources form an angle larger than 0 °. To do.
　また、本発明に係る照明装置は、前記複数のレーザー光源の配列方向が１次元方向でないことを特徴とする。 Further, the illumination device according to the present invention is characterized in that an arrangement direction of the plurality of laser light sources is not a one-dimensional direction.
　また、本発明は以上のような課題を解決するためのものであり、本発明に係る照明装置は、レーザー光を射出する複数のレーザー光源と、入射端に入射された光を反射させながら出射端側に導く導光部材と、前記複数のレーザー光源と、前記導光部材との間に、入射端レンズが配され、前記複数のレーザー光源から出射されたレーザー光が、前記入射端レンズに入射し、前記入射端レンズから出射された光が、前記導光部材に入射することを特徴とする。 In addition, the present invention is for solving the above-described problems, and an illuminating device according to the present invention emits a plurality of laser light sources that emit laser light, and reflects light incident on an incident end. An incident end lens is arranged between the light guide member guided to the end side, the plurality of laser light sources, and the light guide member, and the laser light emitted from the plurality of laser light sources is transmitted to the incident end lens. The light that is incident and emitted from the incident end lens is incident on the light guide member.
　また、本発明に係る照明装置は、前記複数のレーザー光源のうち、所定のレーザー光源がオンオフされるか、又は、減光されることを特徴とする。 Also, the illumination device according to the present invention is characterized in that a predetermined laser light source among the plurality of laser light sources is turned on or off or dimmed.
　また、本発明に係る照明装置は、前記導光部材の出射端にホログラムが配されることを特徴とする。 Further, the illumination device according to the present invention is characterized in that a hologram is arranged at an emission end of the light guide member.
　また、本発明に係る照明装置は、前記導光部材の出射端にレンズアレイが配されることを特徴とする。 Further, the illumination device according to the present invention is characterized in that a lens array is arranged at an emission end of the light guide member.
　また、本発明に係る照明装置は、前記入射端レンズとして凸レンズが複数設けられることを特徴とする。 Further, the illumination device according to the present invention is characterized in that a plurality of convex lenses are provided as the incident end lens.
　また、本発明に係る照明装置は、前記入射端レンズとしてシリンドリカルレンズが設けられることを特徴とする。 Further, the illumination device according to the present invention is characterized in that a cylindrical lens is provided as the incident end lens.
　また、本発明に係る照明装置は、前記入射端レンズとしてトーリックレンズが設けられることを特徴とする。 The illumination device according to the present invention is characterized in that a toric lens is provided as the incident end lens.
　また、本発明に係る照明装置は、前記導光部材が有機高分子材料製であり、対向する低屈折率層の間に高屈折率層を有することを特徴とする。 Further, the lighting device according to the present invention is characterized in that the light guide member is made of an organic polymer material and has a high refractive index layer between opposed low refractive index layers.
　また、本発明に係る照明装置は、前記導光部材が熱プレスにより成型されることを特徴とする。 The lighting device according to the present invention is characterized in that the light guide member is molded by hot pressing.
　また、本発明に係る照明装置は、前記導光部材がガラス材料製であり、対向する低屈折率層の間に高屈折率層を有することを特徴とする。 The lighting device according to the present invention is characterized in that the light guide member is made of a glass material and has a high refractive index layer between the low refractive index layers facing each other.
　本発明に係る光学装置によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、特徴的構造部に対する照明を抑制したり、強調したりする機能を有するので、利便性が向上したり、安全性が向上したり、或いは、機能性が向上したりする。 According to the optical device according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of components, and in addition to a function as a vehicle headlamp, Since it has a function of suppressing or enhancing lighting, convenience is improved, safety is improved, or functionality is improved.
　また、本発明に係る光学装置が搭載された車両によれば、利便性が向上したり、安全性が向上したり、或いは、機能性が向上したりする。 Moreover, according to the vehicle equipped with the optical device according to the present invention, convenience is improved, safety is improved, or functionality is improved.
　また、本発明に係る光学装置によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、人の顔面に対する照明を抑制する機能を有するので、利便性が高い。 Further, according to the optical device of the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to the function as a vehicle headlamp, the human face Since it has the function to suppress the illumination with respect to, it is highly convenient.
　また、本発明に係る光学装置が搭載された車両によれば、人の顔面に対する照明を抑制する機能を有する光学装置により、安全性が向上する。 Further, according to the vehicle equipped with the optical device according to the present invention, safety is improved by the optical device having a function of suppressing illumination on the human face.
　本発明に係る光学装置によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、特定人物を強調する照明を行う機能を有するので、利便性が高い。 According to the optical device of the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and emphasizes a specific person in addition to the function as a vehicle headlamp. Since it has a function of performing illumination, it is highly convenient.
　また、本発明に係る光学装置が搭載された車両によれば、特定人物を強調する照明を行う機能を有する光学装置により、機能性が向上する。 Moreover, according to the vehicle equipped with the optical device according to the present invention, the functionality is improved by the optical device having the function of performing illumination that emphasizes a specific person.
　本発明に係る照明装置によれば、精密な配光制御を行うことが可能であると共に、安全性が向上する。 The lighting device according to the present invention can perform precise light distribution control and improve safety.
　また、本発明に係る照明装置によれば、意匠性が向上した照明装置を提供することができる。 Further, according to the lighting device according to the present invention, it is possible to provide a lighting device with improved design.
　また、本発明に係る照明装置によれば、照明装置の製造性が向上する。 Moreover, according to the illumination device according to the present invention, the manufacturability of the illumination device is improved.
本発明の実施形態に係る光学装置１００を構成する単位ユニット１０の一例を示す図である。It is a figure which shows an example of the unit unit 10 which comprises the optical apparatus 100 which concerns on embodiment of this invention. 単位ユニット１０による照明を説明する図である。It is a figure explaining the illumination by the unit unit. 本発明の実施形態に係る光学装置１００による照明を説明する図である。It is a figure explaining the illumination by the optical apparatus 100 which concerns on embodiment of this invention. 本発明の他の実施形態に係る光学装置１００による照明を説明する図である。It is a figure explaining the illumination by the optical apparatus 100 which concerns on other embodiment of this invention. 本発明の実施形態に係る光学装置１００を車両２００のヘッドライトに用いた例を示す図である。1 is a diagram illustrating an example in which an optical device 100 according to an embodiment of the present invention is used for a headlight of a vehicle 200. FIG. 本発明の実施形態に係る光学装置１００のブロック図である。1 is a block diagram of an optical device 100 according to an embodiment of the present invention. 本発明の第１実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 1st Embodiment of this invention. 対向車との間の距離Ｄの測距離の様子を示す図である。It is a figure which shows the mode of the distance measurement of the distance D between oncoming vehicles. 本発明の第１実施形態に係る光学装置１００による照明例を示す図である。It is a figure which shows the example of illumination by the optical apparatus 100 which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る光学装置１００による特徴的構造部の照明例を示す図である。It is a figure which shows the example of illumination of the characteristic structure part by the optical apparatus 100 which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 3rd Embodiment of this invention. 追跡モードの利用状況を示す図である。It is a figure which shows the utilization condition of tracking mode. 本発明の第３実施形態に係る光学装置１００によるナンバープレート部の照明例を示す図である。It is a figure which shows the example of illumination of the number plate part by the optical apparatus 100 which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 4th Embodiment of this invention. 本発明の第４実施形態に係る光学装置１００による障害物の照明例を示す図である。It is a figure which shows the example of illumination of the obstruction by the optical apparatus 100 which concerns on 4th Embodiment of this invention. 本発明の第５実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 5th Embodiment of this invention. 本発明の第５実施形態に係る光学装置１００による照明例を示す図である。It is a figure which shows the example of illumination by the optical apparatus 100 which concerns on 5th Embodiment of this invention. 本発明の第６実施形態に係る光学装置１００のブロック図である。It is a block diagram of the optical apparatus 100 which concerns on 6th Embodiment of this invention. 本発明の第６実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。It is a figure which shows the flowchart for control of the optical apparatus 100 which concerns on 6th Embodiment of this invention. 本発明の第６実施形態に係る光学装置１００による照明例を示す図である。It is a figure which shows the example of illumination by the optical apparatus 100 which concerns on 6th Embodiment of this invention. 他の照明例を説明する図である。It is a figure explaining the other illumination example. 本発明の第７実施形態に係る照明装置１００の構成を示す図である。It is a figure which shows the structure of the illuminating device 100 which concerns on 7th Embodiment of this invention. 本発明の第７実施形態に係る照明装置１００の単位ユニットによる照明を説明する図である。It is a figure explaining the illumination by the unit unit of the illuminating device 100 which concerns on 7th Embodiment of this invention. 本発明の第８実施形態に係る照明装置１００の単位ユニットによる照明を説明する図である。It is a figure explaining the illumination by the unit unit of the illuminating device 100 which concerns on 8th Embodiment of this invention. 入射端レンズ３５を、光軸の方向から見た図である。It is the figure which looked at the incident end lens 35 from the direction of the optical axis. 本発明の第９実施形態に係る照明装置１００の単位ユニットによる照明を説明する図である。It is a figure explaining the illumination by the unit unit of the illuminating device 100 which concerns on 9th Embodiment of this invention. 本発明の第１０実施形態に係る照明装置１００の単位ユニットによる照明を説明する図である。It is a figure explaining the illumination by the unit unit of the illuminating device 100 which concerns on 10th Embodiment of this invention. 本発明の第１１実施形態に係る照明装置１００の単位ユニットによる照明を説明する図である。It is a figure explaining the illumination by the unit unit of the illuminating device 100 which concerns on 11th Embodiment of this invention. 本発明の第１２実施形態に係る照明装置１００の構成を示す図である。It is a figure which shows the structure of the illuminating device 100 which concerns on 12th Embodiment of this invention. 本発明の第１３実施形態に係る照明装置１００の構成を示す図である。It is a figure which shows the structure of the illuminating device 100 which concerns on 13th Embodiment of this invention. 本発明の第１４実施形態に係る照明装置１００の構成を示す図である。It is a figure which shows the structure of the illuminating device 100 which concerns on 14th Embodiment of this invention. 本発明の第１４実施形態に係る照明装置１００の斜視図である。It is a perspective view of the illuminating device 100 which concerns on 14th Embodiment of this invention. 本発明の第１４実施形態に係る照明装置１００による照明を説明する図である。It is a figure explaining the illumination by the illuminating device 100 which concerns on 14th Embodiment of this invention. 本発明の第１５実施形態に係る照明装置１００による照明を説明する図である。It is a figure explaining the illumination by the illuminating device 100 which concerns on 15th Embodiment of this invention. 本発明の第１６実施形態に係る照明装置１００による照明を説明する図である。It is a figure explaining the illumination by the illuminating device 100 which concerns on 16th Embodiment of this invention. 本発明の第１７実施形態に係る照明装置１００による照明を説明する図である。It is a figure explaining the illumination by the illuminating device 100 which concerns on 17th Embodiment of this invention.
　以下、本発明の実施の形態を図面を参照しつつ説明する。図１は本発明の実施形態に係る光学装置１００を構成する単位ユニット１０の一例を示す図である。また、図２は単位ユニット１０による照明を説明する図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an example of a unit unit 10 constituting an optical device 100 according to an embodiment of the present invention. FIG. 2 is a diagram for explaining illumination by the unit unit 10.
　なお、本発明に係る光学装置１００は、複数の単位ユニット１０から構成されており、単位ユニット１０が最も基本的な最小構成となっている。 The optical device 100 according to the present invention includes a plurality of unit units 10, and the unit unit 10 has the most basic minimum configuration.
　単位ユニット１０としては、レーザー光を射出するレーザー光源と、前記レーザー光源から射出されたレーザー光が入射され、光を出射することで照明を行う光学素子と、から構成されている。本実施形態では、光学素子として透過型のホログラムを用いている。 The unit unit 10 includes a laser light source that emits laser light, and an optical element that emits light by being incident upon the laser light emitted from the laser light source. In the present embodiment, a transmission hologram is used as the optical element.
　なお、ホログラムは透過型ホログラムであってもよいし、反射型ホログラムであってもよい。また、ホログラムとしては、エンボスホログラム、体積型ホログラム、電子ホログラムなどを挙げることができる。さらに、計算機を用いた演算により所定の記録面上に干渉縞を記録させて作製する計算機合成ホログラムなども挙げることができる。また、計算機合成ホログラムのうち、フーリエ変換光学系を用いた計算機合成ホログラムであるフーリエ変換ホログラムを用いるようにしてもよい。 Note that the hologram may be a transmission hologram or a reflection hologram. Examples of the hologram include an embossed hologram, a volume hologram, and an electronic hologram. In addition, a computer-generated hologram that is produced by recording interference fringes on a predetermined recording surface by calculation using a computer can also be used. In addition, among the computer-generated holograms, a Fourier-transform hologram that is a computer-generated hologram using a Fourier transform optical system may be used.
　本実施形態においては、単位ユニット１０は、レーザー光源として単位レーザーアレイ３０が用いられている。この単位レーザーアレイ３０には、第１レーザー光源３１、第２レーザー光源３２及び第３レーザー光源３３の３つのレーザー光源を有している。 In the present embodiment, the unit unit 10 uses a unit laser array 30 as a laser light source. The unit laser array 30 has three laser light sources, a first laser light source 31, a second laser light source 32, and a third laser light source 33.
　第１レーザー光源３１、第２レーザー光源３２及び第３レーザー光源３３は相互に異なる波長の光を出射するものであって、第１レーザー光源３１からは第１の波長の光、第２レーザー光源３２からは第２の波長の光、第３レーザー光源３３からは第３の波長の光が出射される。本実施の形態においては、例えば、第１レーザー光源３１から出射される第１の波長の光を青色の光、第２レーザー光源３２から出射される第２の波長の光を緑色の光、第３レーザー光源３３から出射される第３の波長の光を赤色の光とすることができる。 The first laser light source 31, the second laser light source 32, and the third laser light source 33 emit light having different wavelengths, and the first laser light source 31 emits light of the first wavelength and the second laser light source. Light having a second wavelength is emitted from 32, and light having a third wavelength is emitted from the third laser light source 33. In the present embodiment, for example, the first wavelength light emitted from the first laser light source 31 is blue light, the second wavelength light emitted from the second laser light source 32 is green light, The light of the third wavelength emitted from the three laser light source 33 can be red light.
　なお、本実施形態においては、単位レーザーアレイ３０として、第１レーザー光源３１、第２レーザー光源３２及び第３レーザー光源３３の３種類の異なるレーザー光源を用いる例に基づいて説明を行うが、光学装置１００の構成によって、用いるレーザー光源の種類数は任意とすることができる。 In the present embodiment, the unit laser array 30 will be described based on an example in which three different laser light sources, ie, a first laser light source 31, a second laser light source 32, and a third laser light source 33 are used. Depending on the configuration of the apparatus 100, the number of types of laser light sources used may be arbitrary.
　第１レーザー光源３１から射出されたレーザー光は、単位ホログラム５０の第１記憶領域５１に入射し、第２レーザー光源３２から射出されたレーザー光は、単位ホログラム５０の第２記憶領域５２に入射し、第３レーザー光源３３から射出されたレーザー光は、単位ホログラム５０の第３記憶領域５３に入射するようになっている。 The laser light emitted from the first laser light source 31 enters the first storage area 51 of the unit hologram 50, and the laser light emitted from the second laser light source 32 enters the second storage area 52 of the unit hologram 50. The laser light emitted from the third laser light source 33 is incident on the third storage area 53 of the unit hologram 50.
　図２（Ａ）に示すように、第１レーザー光源３１からのレーザー光が参照光として、単位ホログラム５０の第１記憶領域５１に入射すると、第１記憶領域５１に記録されたホログラム再生像が、単位ホログラム５０から出射され単位照明領域を照明する。 As shown in FIG. 2A, when the laser light from the first laser light source 31 is incident on the first storage area 51 of the unit hologram 50 as reference light, a hologram reproduction image recorded in the first storage area 51 is obtained. The unit illumination area is emitted from the unit hologram 50 to illuminate the unit illumination area.
　また、図２（Ｂ）に示すように、第２レーザー光源３２からのレーザー光が参照光として、単位ホログラム５０の第２記憶領域５２に入射すると、第２記憶領域５２に記録されたホログラム再生像が、単位ホログラム５０から出射され単位照明領域を照明する。 As shown in FIG. 2B, when the laser light from the second laser light source 32 enters the second storage area 52 of the unit hologram 50 as reference light, the hologram recorded in the second storage area 52 is reproduced. An image is emitted from the unit hologram 50 to illuminate the unit illumination area.
　また、図２（Ｃ）に示すように、第３レーザー光源３３からのレーザー光が参照光として、単位ホログラム５０の第３記憶領域５３に入射すると、第３記憶領域５３に記録されたホログラム再生像が、単位ホログラム５０から出射され単位照明領域を照明する。 As shown in FIG. 2C, when the laser beam from the third laser light source 33 enters the third storage area 53 of the unit hologram 50 as reference light, the hologram recorded in the third storage area 53 is reproduced. An image is emitted from the unit hologram 50 to illuminate the unit illumination area.
　第１レーザー光源３１、第２レーザー光源３２及び第３レーザー光源３３の発光は、上位の制御部１１０によって制御することができるようになっている。このように単位ユニット１０においては、各レーザー光源の制御に基づいて単位照明領域を、各レーザー光源の３原色により任意に照明することができるようになるので、単位照明領域を任意の色で照明することができることとなる。 The light emission of the first laser light source 31, the second laser light source 32, and the third laser light source 33 can be controlled by the upper control unit 110. Thus, in the unit unit 10, the unit illumination area can be arbitrarily illuminated with the three primary colors of each laser light source based on the control of each laser light source, so that the unit illumination area is illuminated with an arbitrary color. Will be able to.
　本発明に係る光学装置１００は、上記のような単位レーザーアレイ３０と単位ホログラム５０の組み合わせからなる単位ユニット１０が複数設けられており、光学装置１００全体としてのレーザーアレイ４０及びホログラム６０が構成される。すなわち、レーザーアレイ４０は、複数の単位レーザーアレイ３０から構成されており、ホログラム６０は、複数の単位レーザーアレイ３０の各レーザー光源に対応する記憶領域を有している。なお、単位レーザーアレイ３は少なくとも１つ以上のレーザー光源から構成される。 The optical device 100 according to the present invention is provided with a plurality of unit units 10 composed of a combination of the unit laser array 30 and the unit hologram 50 as described above, and the laser array 40 and the hologram 60 as the entire optical device 100 are configured. The That is, the laser array 40 is composed of a plurality of unit laser arrays 30, and the hologram 60 has a storage area corresponding to each laser light source of the plurality of unit laser arrays 30. The unit laser array 3 is composed of at least one laser light source.
　これにより、図３に示すように、それぞれの単位レーザーアレイ３０が単位照明領域を照明し、光学装置１００全体として、全照明領域を形成するようになっている。 Thereby, as shown in FIG. 3, each unit laser array 30 illuminates the unit illumination area, and the entire optical apparatus 100 is formed as a whole illumination area.
　ここで、単位レーザーアレイ３０と単位ホログラム５０とで形成される単位照明領域は、一般的な表示装置における画素のような役割を担うこととなり、本発明に係る光学装置１００においては、単位照明領域毎で異なる照明を行うようにレーザーアレイ４０における単位レーザーアレイ３０を制御することにより、種々の照明パターンを形成することができる。 Here, the unit illumination region formed by the unit laser array 30 and the unit hologram 50 plays a role like a pixel in a general display device. In the optical device 100 according to the present invention, the unit illumination region Various illumination patterns can be formed by controlling the unit laser array 30 in the laser array 40 so as to perform different illuminations.
　このように、単位レーザーアレイ３０と単位ホログラム５０とによる単位照明領を組み合わせることで、照明領域における表示形状を自由に設定できようになる。とりわけ矩形照明が容易に可能であるため、効率よく照明領域を形成できる。 Thus, by combining the unit illumination areas of the unit laser array 30 and the unit hologram 50, the display shape in the illumination area can be freely set. In particular, since rectangular illumination can be easily performed, an illumination area can be formed efficiently.
　なお、図３に示す例では、レーザーアレイ４０における単位レーザーアレイ３０が平面状、すなわち、２次元に配列されている例を説明しているが、単位レーザーアレイ３０は１次元に配列させるようにしてもよい。 In the example shown in FIG. 3, the example in which the unit laser arrays 30 in the laser array 40 are planar, ie, two-dimensionally arranged, is described. However, the unit laser arrays 30 are arranged one-dimensionally. May be.
　図３に示す例では、光学装置１００のホログラム６０に入射させる光源として複数の単位レーザーアレイ３０から構成されるレーザーアレイ４０を用いているが、光学装置１００のホログラム６０に入射させる光源としては、走査光を用いることもできる。図４は、本発明の他の実施形態に係る光学装置１００による照明を説明する図である。 In the example shown in FIG. 3, the laser array 40 including a plurality of unit laser arrays 30 is used as a light source that is incident on the hologram 60 of the optical device 100, but as a light source that is incident on the hologram 60 of the optical device 100, Scanning light can also be used. FIG. 4 is a diagram for explaining illumination by the optical device 100 according to another embodiment of the present invention.
　図４の光学装置１００は、単位レーザーアレイ３０の各レーザー光源から射出されたレーザー光を反射し、走査光を射出するミラー７０を有している。ミラー７０は１軸方向を中心として回動するか、１軸方向又はこれと直交する２軸方向の２つの方向に回動するように構成することで、レーザー光の反射光により、ホログラム６０を走査する走査光を形成することができる。 4 has a mirror 70 that reflects laser light emitted from each laser light source of the unit laser array 30 and emits scanning light. The mirror 70 is configured to rotate about one axis direction, or to rotate in two directions of one axis direction or two axis directions orthogonal to this, so that the hologram 60 is reflected by the reflected light of the laser beam. Scanning light for scanning can be formed.
　この例では、ミラー７０で反射された走査光をホログラム６０に入射する構成が採用されており、このような構成によっても、本発明に係る光学装置１００の実現することができる。 In this example, a configuration in which the scanning light reflected by the mirror 70 is incident on the hologram 60 is adopted, and the optical device 100 according to the present invention can also be realized by such a configuration.
　なお、上記のようなミラー７０としては、具体的には、ガルバノミラーやＭＥＭＳスキャナ、ポリゴンミラーなどを用いることができる。 As the mirror 70 as described above, specifically, a galvano mirror, a MEMS scanner, a polygon mirror, or the like can be used.
　図４の例では、光学装置１００の制御部１１０は、単位レーザーアレイ３０の各レーザー光源の制御、及び、走査部としてのミラー７０の動作制御を行う。 In the example of FIG. 4, the control unit 110 of the optical device 100 controls each laser light source of the unit laser array 30 and controls the operation of the mirror 70 as a scanning unit.
　本例のような場合、走査光でホログラム６０を走査することに加え、単位レーザーアレイ３０の出力を、走査に同期させて調整させることで、例えば、ある一部を照明したくない場合、その部分を照明することとなる単位ホログラム５０を走査するときに、単位レーザーアレイ３０の出力をオフにすると、前記の一部のみを未照射とすることができる。また、第１レーザー光源３１、第２レーザー光源３２及び第３レーザー光源３３の出力のバランスを制御することで様々な照明パターンを作成できる。 In the case of this example, in addition to scanning the hologram 60 with the scanning light, the output of the unit laser array 30 is adjusted in synchronization with the scanning. When scanning the unit hologram 50 that illuminates a part, if the output of the unit laser array 30 is turned off, only the part can be unirradiated. Also, various illumination patterns can be created by controlling the balance of the outputs of the first laser light source 31, the second laser light source 32, and the third laser light source 33.
　次に、以上のように構成される光学装置１００の応用例について説明する。図５は本発明の実施形態に係る光学装置１００を車両２００などの移動体のヘッドライトに用いた例を示す図である。このような車両２００においては、レーザーアレイ４０を制御部１１０で制御することにより、光学装置１００を通常のヘッドライトとして用いることに加え、例えば、図５のＡに示す部分のみを青色に照明したりすることが可能となる。 Next, an application example of the optical device 100 configured as described above will be described. FIG. 5 is a diagram illustrating an example in which the optical device 100 according to the embodiment of the present invention is used for a headlight of a moving body such as a vehicle 200. In such a vehicle 200, by controlling the laser array 40 with the control unit 110, in addition to using the optical device 100 as a normal headlight, for example, only the portion shown in FIG. It becomes possible to do.
　このために、Ａの部分を照射する単位ホログラム５０に入射させる単位レーザーアレイ３０においては、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。走査型の光学装置１００の場合には、Ａの部分を照射する単位ホログラム５０を走査する際に、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。 Therefore, in the unit laser array 30 that is incident on the unit hologram 50 that irradiates the portion A, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser light source is turned off. Control to turn on the output of 31 (blue) is performed. In the case of the scanning optical device 100, when scanning the unit hologram 50 that irradiates the portion A, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off. Control is performed to turn on the output of one laser light source 31 (blue).
　すなわち、本発明に係る光学装置１００は、車両２００の前方を白色で照明したり、白色照明に加えて、Ａに示すような白色以外の照明を行うことができたり、或いは、白色照明なしにＡに示す照明のみを行ったりすることができる。 That is, the optical device 100 according to the present invention can illuminate the front of the vehicle 200 with white color, can perform illumination other than white as shown in A in addition to white illumination, or without white illumination. Only the illumination shown in A can be performed.
　なお、本発明の光学装置１００を搭載可能な車両２００には、ガソリンエンジンの駆動力のみで走行する車両や、ガソリンエンジンとモーターの駆動力で走行する車両、モーターの駆動力のみで走行する車両や、或いは、ディーゼルエンジンの駆動力により走行する車両などが含まれる。さらに、本発明の光学装置１００は、二輪車などにも搭載することができる。なお、二輪車には自動二輪車だけでなく、自転車も含まれる。すなわち、本発明の光学装置１００は上記のような種々の移動体に搭載することが可能である。 The vehicle 200 on which the optical device 100 of the present invention can be mounted includes a vehicle that travels only with the driving force of the gasoline engine, a vehicle that travels with the driving force of the gasoline engine and the motor, and a vehicle that travels only with the driving force of the motor. Or, a vehicle that travels by the driving force of a diesel engine is included. Furthermore, the optical device 100 of the present invention can be mounted on a two-wheeled vehicle or the like. Motorcycles include not only motorcycles but also bicycles. In other words, the optical device 100 of the present invention can be mounted on various moving bodies as described above.
　次に、上記のような本発明に係る光学装置１００を搭載した車両２００の動作例について説明する。図６は本発明の実施形態に係る光学装置１００のブロック図である。 Next, an operation example of the vehicle 200 equipped with the optical device 100 according to the present invention as described above will be described. FIG. 6 is a block diagram of the optical device 100 according to the embodiment of the present invention.
　図６において、制御部１１０はＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）とＣＰＵ上で動作するプログラムを保持するＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ Ｍｅｍｏｒｙ）とＣＰＵのワークエリアであるＲＡＭ（Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）などからなる汎用の情報処理機構である。制御部１１０は、図示されている制御部１１０と接続される各構成と協働・動作する。 In FIG. 6, the control unit 110 is a general-purpose information processing unit including a CPU (Central Processing Unit), a ROM (Read Only Memory) that holds programs operating on the CPU, and a RAM (Random Access Memory) that is a work area of the CPU. Mechanism. The control unit 110 cooperates and operates with each component connected to the illustrated control unit 110.
　スイッチ１４０は、光学装置１００のヘッドライトとしての動作のオンオフを司るものであり、車両２００のドライバーによって操作されることが想定されている。 The switch 140 controls the operation of the optical device 100 as a headlight, and is assumed to be operated by the driver of the vehicle 200.
　撮像部１６０は車両２００前方の動画画像を取得するカメラである。この撮像部１６０で取得されさた画像は、制御部１１０に送信されて、制御部１１０において画像解析が行われ、例えば、車両２００前方の車両、前方車両のナンバープレート、特定の対象物などを抽出することができるようになっている。 The imaging unit 160 is a camera that acquires a moving image in front of the vehicle 200. The image acquired by the imaging unit 160 is transmitted to the control unit 110, and image analysis is performed in the control unit 110. For example, a vehicle in front of the vehicle 200, a license plate of the front vehicle, a specific object, etc. It can be extracted.
　測距部１７０は、車両２００前方に存在する物体との間の距離を測定し、この距離測定データを制御部１１０に送信する。制御部１１０は、画像解析により抽出した前方車両との間の距離Ｄを取得する。 The distance measuring unit 170 measures the distance to an object existing in front of the vehicle 200 and transmits this distance measurement data to the control unit 110. The control unit 110 acquires the distance D between the vehicle ahead and extracted by image analysis.
　また、制御部１１０が、レーザーアレイ４０を構成する各レーザー光源を制御することで、車両２００の前方の照明を行うことができる。制御部１１０がレーザーアレイ４０を制御することで、光学装置１００を一般的な車両の前照灯として利用することもできる。さらに、制御部１１０がレーザーアレイ４０を制御することで、光学装置１００により、ライン、記号、マーク、文字などを路面に投影することもできるようになる。 Also, the controller 110 can illuminate the front of the vehicle 200 by controlling each laser light source constituting the laser array 40. The control unit 110 controls the laser array 40, so that the optical device 100 can be used as a general vehicle headlamp. Furthermore, the control unit 110 controls the laser array 40 so that the optical device 100 can project lines, symbols, marks, characters, and the like onto the road surface.
　次に、以上のように構成される光学装置１００の制御について説明する。図７は本発明の第１実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。このようなフローチャートは、制御部１１０により実行される。 Next, control of the optical device 100 configured as described above will be described. FIG. 7 is a flowchart for controlling the optical apparatus 100 according to the first embodiment of the present invention. Such a flowchart is executed by the control unit 110.
　本発明の第１実施形態に係る光学装置１００においては、光学装置１００をヘッドライトとして利用している際、対向車両のウインドシールドなどのガラス部分への照明を低減する制御を行うものである。なお、対向車両のウインドシールドなどのガラス部分を、特許請求の範囲においては、特徴的構造部と称している。 In the optical device 100 according to the first embodiment of the present invention, when the optical device 100 is used as a headlight, control is performed to reduce illumination on a glass portion such as a windshield of an oncoming vehicle. Note that a glass portion such as a windshield of an oncoming vehicle is referred to as a characteristic structure in the claims.
　　図７において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ１０１においては、スイッチ１４０がオンであるか否かが判定される。 In FIG. 7, when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S101 whether or not the switch 140 is on.
　ステップＳ１０１における判定がＹＥＳであるときには、ステップＳ１０２に進み、光学装置１００から白色光を出射するように、レーザーアレイ４０を制御する。 When the determination in step S101 is YES, the process proceeds to step S102, and the laser array 40 is controlled so that white light is emitted from the optical device 100.
　ステップ１０１における判定がＮＯであれば、ステップＳ１０９に進み、エンジンストップであるか否かが判定される。ステップＳ１０９の判定がＹＥＳであれば、ステップＳ１１０に進み、処理を終了し、ステップＳ１０９の判定がＮＯであれば、再び、ステップＳ１０１に戻る。 If the determination in step 101 is NO, the process proceeds to step S109 to determine whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
　ステップＳ１０３では、撮像部１６０により撮像画像を取得し、続いて、ステップＳ１０４では、撮像部１６０の撮像画像を解析する。 In step S103, a captured image is acquired by the imaging unit 160, and subsequently, in step S104, the captured image of the imaging unit 160 is analyzed.
　ステップＳ１０５では、解析した画像に基づき、対向車が存在するか否かが判定される。ステップ１０５における判定がＮＯであれば、ステップＳ１０９に進み、エンジンストップであるか否かが判定される。ステップＳ１０９の判定がＹＥＳであれば、ステップＳ１１０に進み、処理を終了し、ステップＳ１０９の判定がＮＯであれば、再び、ステップＳ１０１に戻る。 In step S105, it is determined whether there is an oncoming vehicle based on the analyzed image. If the determination in step 105 is no, the process proceeds to step S109 to determine whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
　一方、ステップＳ１０５における判定がＹＥＳであれば、続いて、ステップＳ１０６に進み、測距部１７０から対向車との間の距離Ｄを取得する。図８は対向車との間の距離Ｄの測距離の様子を示す図である。 On the other hand, if the determination in step S105 is YES, the process proceeds to step S106, and the distance D between the oncoming vehicle and the distance measuring unit 170 is acquired. FIG. 8 is a diagram showing a state of distance measurement of the distance D between the oncoming vehicle.
　続く、ステップＳ１０７で、Ｄ＜Ｄ1であるか否かが判定される。対向車両があまりに遠隔に存在していれば、車両２００の照明を抑制したとしても、あまり意味がないので、対向車両との間の距離がＤ1より小さい場合にのみ、照明の抑制を行うようにする。 Followed in step S107, whether D <D 1 is determined. If the oncoming vehicle is only to present too remote, even inhibited illumination of the vehicle 200, since much meaningless, the distance between the oncoming vehicle only when D 1 is smaller than, to perform suppression of illumination To.
　従って、ステップ１０７における判定がＮＯであれば、ステップＳ１０９に進み、エンジンストップであるか否かが判定される。ステップＳ１０９の判定がＹＥＳであれば、ステップＳ１１０に進み、処理を終了し、ステップＳ１０９の判定がＮＯであれば、再び、ステップＳ１０１に戻る。 Therefore, if the determination in step 107 is NO, the process proceeds to step S109 to determine whether or not the engine is stopped. If the determination in step S109 is YES, the process proceeds to step S110 to end the process. If the determination in step S109 is NO, the process returns to step S101 again.
　一方、ステップＳ１０７における判定がＹＥＳであれば、ステップＳ１０８に進み、対向車両のガラス部への照明を抑制するように、レーザーアレイ４０を制御する。図９は本発明の第１実施形態に係る光学装置１００による照明例を示す図である。図９に示すように、光学装置１００を制御することで、対向車両のドライバーの眼に入射する光を抑制することができ、対向車両のドライバーの負担を軽減することができ、安全性が向上する。 On the other hand, if the determination in step S107 is YES, the process proceeds to step S108, and the laser array 40 is controlled so as to suppress illumination on the glass part of the oncoming vehicle. FIG. 9 is a diagram showing an example of illumination by the optical device 100 according to the first embodiment of the present invention. As shown in FIG. 9, by controlling the optical device 100, it is possible to suppress the light incident on the eyes of the driver of the oncoming vehicle, reduce the burden on the driver of the oncoming vehicle, and improve safety. To do.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置１００を提供することが可能であるとともに、車両の前照灯としての機能以外にも、対向車に対する照明を抑制する機能を有するので、利便性が高い。 As described above, according to the optical device 100 according to the present invention, it is possible to provide the optical device 100 having a simple and inexpensive configuration with a reduced number of parts, and in addition to the function as a headlight of a vehicle, Convenience is high because it has a function of suppressing lighting on the car.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、対向車に対する照明を抑制する機能を有する光学装置１００により、安全性が向上する。 In addition, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, safety is improved by the optical device 100 having a function of suppressing illumination on the oncoming vehicle.
　次に、本発明の第２実施形態について説明する。図１０は本発明の第２実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。このようなフローチャートは、制御部１１０により実行される。 Next, a second embodiment of the present invention will be described. FIG. 10 is a flowchart for controlling the optical device 100 according to the second embodiment of the present invention. Such a flowchart is executed by the control unit 110.
　本発明の第２実施形態に係る光学装置１００においては、光学装置１００によって、縁石やガードレールといった道路近傍の特徴的構造部を強調する照明を行うものである。 In the optical device 100 according to the second embodiment of the present invention, the optical device 100 performs illumination that emphasizes a characteristic structure near the road such as a curb or a guardrail.
　図１０において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ２０１においては、スイッチ１４０がオンであるか否かが判定される。 In FIG. 10, when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S201 whether or not the switch 140 is on.
　ステップＳ２０１における判定がＹＥＳであるときには、ステップＳ２０２に進み、光学装置１００から白色光を出射するように、レーザーアレイ４０を制御する。 When the determination in step S201 is YES, the process proceeds to step S202, and the laser array 40 is controlled so that white light is emitted from the optical device 100.
　続く、ステップＳ２０３では、撮像部１６０により撮像画像を取得し、次のステップＳ２０４では、撮像部１６０で取得された撮像画像を解析する。 Subsequently, in step S203, the captured image is acquired by the imaging unit 160, and in the next step S204, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ２０５では、縁石やガードレール、センターラインなどの特徴的構造部が解析された撮像画像中に存在するか否かを判定する。ステップＳ２０５における特徴的構造部が解析撮像画像中に存在するかを判定する方法としては、色の違いに基づく判定方法、凹凸形状に基づく判定方法、高低差に基づく判定方法などを挙げることができる。また、例えば、暗さや雪道などで、センターラインなどが判定できない場合には、センターラインの位置を道幅などから推定するようにしてもよい。 In step S205, it is determined whether or not characteristic structures such as curbs, guardrails, and center lines are present in the analyzed captured image. Examples of the method for determining whether or not the characteristic structure portion is present in the analysis captured image in step S205 include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference. . For example, when the center line cannot be determined due to darkness or snowy roads, the position of the center line may be estimated from the road width or the like.
　ステップ２０５における判定がＮＯであれば、ステップＳ２０７に進み、エンジンストップであるか否かが判定される。ステップＳ２０７の判定がＹＥＳであれば、ステップＳ２１２に進み、処理を終了し、ステップＳ２０７の判定がＮＯであれば、再び、ステップＳ２０１に戻る。 If the determination in step 205 is NO, the process proceeds to step S207 to determine whether or not the engine is stopped. If the determination in step S207 is YES, the process proceeds to step S212 to end the process, and if the determination in step S207 is NO, the process returns to step S201 again.
　一方、ステップ２０５における判定がＹＥＳであれば、ステップＳ２０６に進み、光学装置１００から白色光を出射すると共に、判定された特徴的構造部を強調する照明光を出射するように、レーザーアレイ４０を制御する。 On the other hand, if the determination in step 205 is YES, the process proceeds to step S206, and the laser array 40 is set so as to emit white light from the optical device 100 and emit illumination light that emphasizes the determined characteristic structure. Control.
　図１１は本発明の第２実施形態に係る光学装置１００による特徴的構造部の照明例を示す図である。本発明に係る光学装置１００による特徴的構造部照明においては、車両２００のヘッドライトとしての白色照明中に、例えば、白色照明と異なる色（例えば、青色など）による強調照明を、縁石やセンターラインなどの特徴的構造部に対して照射する。 FIG. 11 is a diagram showing an illumination example of the characteristic structure portion by the optical device 100 according to the second embodiment of the present invention. In the characteristic structure portion illumination by the optical device 100 according to the present invention, during the white illumination as the headlight of the vehicle 200, for example, enhanced illumination with a color (for example, blue) different from the white illumination is applied to the curbstone or the center line. Irradiate the characteristic structure such as
　さて、ステップＳ２０１における判定がＮＯであるときには、ステップＳ２０８に進む。ステップＳ２０８では、撮像部１６０により撮像画像を取得し、次のステップＳ２０９では、撮像部１６０で取得された撮像画像を解析する。 Now, when the determination in step S201 is NO, the process proceeds to step S208. In step S208, the captured image is acquired by the imaging unit 160, and in the next step S209, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ２１０では、縁石やガードレール、センターラインなどの特徴的構造部が解析された撮像画像中に存在するか否かを判定する。ステップＳ２１０における特徴的構造部が解析撮像画像中に存在するかを判定する方法としては、色の違いに基づく判定方法、凹凸形状に基づく判定方法、高低差に基づく判定方法などを挙げることができる。また、例えば、暗さや雪道などで、センターラインなどが判定できない場合には、センターラインの位置を道幅などから推定するようにしてもよい。 In step S210, it is determined whether or not characteristic structures such as curbs, guardrails, and center lines are present in the analyzed captured image. Examples of the method for determining whether or not the characteristic structure portion in step S210 exists in the analysis captured image include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference. . For example, when the center line cannot be determined due to darkness or snowy roads, the position of the center line may be estimated from the road width or the like.
　ステップ２１０における判定がＮＯであれば、ステップＳ２０７に進み、エンジンストップであるか否かが判定される。ステップＳ２０７の判定がＹＥＳであれば、ステップＳ２１２に進み、処理を終了し、ステップＳ２０７の判定がＮＯであれば、再び、ステップＳ２０１に戻る。 If the determination in step 210 is NO, the process proceeds to step S207 to determine whether or not the engine is stopped. If the determination in step S207 is YES, the process proceeds to step S212 to end the process, and if the determination in step S207 is NO, the process returns to step S201 again.
　一方、ステップ２１０における判定がＹＥＳであれば、ステップＳ２１１に進み、光学装置１００から、判定された特徴的構造部を強調する照明光を出射するように、レーザーアレイ４０を制御する。 On the other hand, if the determination in step 210 is YES, the process proceeds to step S211, and the laser array 40 is controlled so as to emit illumination light that emphasizes the determined characteristic structure from the optical device 100.
　ステップＳ２１１における特徴的構造部照明においては、白色照明と異なる色（例えば、青色など）による強調照明を、縁石やセンターラインなどの特徴的構造部に対して照射する。 In the characteristic structure portion illumination in step S211, highlighting illumination with a color different from the white illumination (for example, blue) is applied to the characteristic structure portion such as a curb or a center line.
　本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置１００を提供することが可能であるとともに、車両の前照灯としての機能以外にも、縁石やガードレール、センターラインなどの特徴的構造部を強調する照明を行う機能を有するので、利便性が高い。 According to the optical device 100 according to the present invention, it is possible to provide the optical device 100 having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, a curb or a guardrail is provided. Since it has a function of performing illumination that emphasizes a characteristic structure such as a center line, it is highly convenient.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、縁石やガードレール、センターラインなどの特徴的構造部を強調する照明を行う機能を有する光学装置により、安全性が向上する。 Also, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, safety is improved by the optical device having a function of performing illumination that emphasizes characteristic structures such as curbs, guardrails, and center lines.
　次に、本発明の第３実施形態について説明する。図１２は本発明の第３実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。このようなフローチャートは、制御部１１０により実行される。 Next, a third embodiment of the present invention will be described. FIG. 12 is a flowchart for controlling the optical apparatus 100 according to the third embodiment of the present invention. Such a flowchart is executed by the control unit 110.
　本発明の第３実施形態に係る光学装置１００においては、光学装置１００が搭載される車両２００は、例えば、警察車両を想定しており、光学装置１００によって車両２００が追尾する追尾車両のナンバープレートを強調的に照明する追尾モードが設けられていることを特徴としている。なお、追尾車両のナンバープレートを、特許請求の範囲においては、特徴的構造部と称している。図１３は追跡モードの利用状況を示す図である。 In the optical device 100 according to the third embodiment of the present invention, the vehicle 200 on which the optical device 100 is mounted is assumed to be a police vehicle, for example, and the license plate of the tracking vehicle that the vehicle 200 tracks with the optical device 100 It is characterized in that a tracking mode is provided for emphasizing illumination. Note that the number plate of the tracking vehicle is referred to as a characteristic structure in the claims. FIG. 13 is a diagram showing the usage status of the tracking mode.
　図１２において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ３０１では、追尾モードがオンであるか否かが判定される。なお、追尾モードがオンであるかオフであるかは、適当な入力手段で制御部１１０に入力されるようにしておく。 In FIG. 12, when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S301 whether or not the tracking mode is on. Whether the tracking mode is on or off is input to the control unit 110 by appropriate input means.
　ステップ３０１における判定がＮＯであれば、ステップＳ３０７に進み、エンジンストップであるか否かが判定される。ステップＳ３０７の判定がＹＥＳであれば、ステップＳ３０８に進み、処理を終了し、ステップＳ３０７の判定がＮＯであれば、再び、ステップＳ３０１に戻る。 If the determination in step 301 is NO, the process proceeds to step S307 to determine whether or not the engine is stopped. If the determination in step S307 is YES, the process proceeds to step S308 to end the process, and if the determination in step S307 is NO, the process returns to step S301 again.
　ステップ３０１における判定がＹＥＳであれば、続くステップＳ２０３では、撮像部１６０により撮像画像を取得し、次のステップＳ２０４では、撮像部１６０で取得された撮像画像を解析する。 If the determination in step 301 is YES, in the subsequent step S203, the captured image is acquired by the imaging unit 160, and in the next step S204, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ３０４では、解析された撮像画像により、前方を走行する車両が存在するか否かが判定される。 In step S304, it is determined from the analyzed captured image whether there is a vehicle traveling ahead.
　ステップ３０４における判定がＮＯであれば、ステップＳ３０７に進み、エンジンストップであるか否かが判定される。ステップＳ３０７の判定がＹＥＳであれば、ステップＳ３０８に進み、処理を終了し、ステップＳ３０７の判定がＮＯであれば、再び、ステップＳ３０１に戻る。 If the determination in step 304 is NO, the process proceeds to step S307 to determine whether or not the engine is stopped. If the determination in step S307 is YES, the process proceeds to step S308 to end the process, and if the determination in step S307 is NO, the process returns to step S301 again.
　一方、ステップ３０４における判定がＹＥＳであれば、ステップＳ３０５に進み、解析撮像画像により、前方を走行する車両のナンバープレート部を特定し、続く、ステップＳ３０６で、ナンバープレート部を強調照明する。図１４は本発明の第３実施形態に係る光学装置１００によるナンバープレート部の照明例を示す図である。 On the other hand, if the determination in step 304 is YES, the process proceeds to step S305, where the license plate portion of the vehicle traveling ahead is specified from the analysis captured image, and in step S306, the license plate portion is highlighted. FIG. 14 is a diagram illustrating an illumination example of the license plate portion by the optical device 100 according to the third embodiment of the present invention.
　ステップＳ３０６におけるナンバープレート部の強調照明においては、白色照明と異なる色（例えば、青色など）による強調照明を、前方車両のナンバープレート部に対して照射する。なお、光学装置１００を前照灯として利用しているような場合には、このような強調照明部のみの光量を大きくするようにすることなどもできる。 In the emphasized illumination of the license plate portion in step S306, the emphasized illumination with a color (for example, blue) different from the white illumination is applied to the license plate portion of the preceding vehicle. When the optical device 100 is used as a headlamp, it is possible to increase the amount of light of only such an emphasizing illumination unit.
　上記のようなナンバープレート部の強調照明により、車両２００が追尾する車両のナンバープレートの判読性が向上したり、追尾ミスなどを減少させたりすることができる。 The above-described highlighted illumination of the license plate portion can improve the legibility of the license plate of the vehicle that the vehicle 200 tracks, and can reduce tracking errors and the like.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、ナンバープレート部を強調する照明を行う機能を有するので、利便性が高い。 As described above, according to the optical device 100 according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, a license plate Convenience is high because it has a function of performing illumination that emphasizes the part.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、ナンバープレート部を強調する照明を行う機能を有する光学装置２００により、機能性が向上する。 Moreover, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, the functionality is improved by the optical device 200 having a function of performing illumination that emphasizes the license plate portion.
　次に、本発明の第４実施形態について説明する。図１５は本発明の第４実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。このようなフローチャートは、制御部１１０により実行される。 Next, a fourth embodiment of the present invention will be described. FIG. 15 is a diagram illustrating a flowchart for controlling the optical apparatus 100 according to the fourth embodiment of the present invention. Such a flowchart is executed by the control unit 110.
　本発明の第４実施形態に係る光学装置１００においては、光学装置１００によって、路上の障害物を強調する照明を行うものである。なお、路上の障害物を、特許請求の範囲においては、特徴的構造部と称している。 In the optical device 100 according to the fourth embodiment of the present invention, the optical device 100 performs illumination that emphasizes an obstacle on the road. In the claims, the obstacle on the road is referred to as a characteristic structure portion.
　図１５において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ４０１においては、スイッチ１４０がオンであるか否かが判定される。 In FIG. 15, when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S401 whether or not the switch 140 is on.
　ステップＳ４０１における判定がＹＥＳであるときには、ステップＳ４０２に進み、光学装置１００から白色光を出射するように、レーザーアレイ４０を制御する。 When the determination in step S401 is YES, the process proceeds to step S402, and the laser array 40 is controlled so that white light is emitted from the optical device 100.
　続く、ステップＳ４０３では、撮像部１６０により撮像画像を取得し、次のステップＳ４０４では、撮像部１６０で取得された撮像画像を解析する。 Subsequently, in step S403, the captured image is acquired by the imaging unit 160, and in the next step S404, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ４０５では、障害物が解析された撮像画像中に存在するか否かを判定する。ステップＳ４０５における障害物が解析撮像画像中に存在するかを判定する方法としては、色の違いに基づく判定方法、凹凸形状に基づく判定方法、高低差に基づく判定方法などを挙げることができる。 In step S405, it is determined whether an obstacle exists in the analyzed captured image. Examples of the method for determining whether an obstacle exists in the analysis captured image in step S405 include a determination method based on a color difference, a determination method based on an uneven shape, and a determination method based on a height difference.
　ステップ２０５における判定がＮＯであれば、ステップＳ４０７に進み、エンジンストップであるか否かが判定される。ステップＳ４０７の判定がＹＥＳであれば、ステップＳ４１２に進み、処理を終了し、ステップＳ４０７の判定がＮＯであれば、再び、ステップＳ４０１に戻る。 If the determination in step 205 is NO, the process proceeds to step S407, and it is determined whether or not the engine is stopped. If the determination in step S407 is YES, the process proceeds to step S412 to end the process, and if the determination in step S407 is NO, the process returns to step S401 again.
　一方、ステップ２０５における判定がＹＥＳであれば、ステップＳ４０６に進み、光学装置１００から白色光を出射すると共に、判定された障害物を強調する照明光を出射するように、レーザーアレイ４０を制御する。 On the other hand, if the determination in step 205 is YES, the process proceeds to step S406 and the laser array 40 is controlled so as to emit white light from the optical device 100 and emit illumination light that emphasizes the determined obstacle. .
　図１６は本発明の第４実施形態に係る光学装置１００による障害物の照明例を示す図である。本発明に係る光学装置１００による障害物照明においては、車両２００のヘッドライトとしての白色照明中に、例えば、白色照明と異なる色（例えば、青色など）による強調照明を、障害物に対して照射する。このような強調照明は、点滅させるようにしてもよい。 FIG. 16 is a diagram illustrating an example of illumination of an obstacle by the optical device 100 according to the fourth embodiment of the present invention. In the obstacle illumination by the optical device 100 according to the present invention, during the white illumination as the headlight of the vehicle 200, the obstacle is irradiated with, for example, enhanced illumination with a color different from the white illumination (for example, blue). To do. Such highlighting illumination may be blinked.
　障害物照明における、白色照明と異なる青色を照射するためには、強調照明を行う単位ホログラム５０に入射させる単位レーザーアレイ３０においては、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。走査型の光学装置１００の場合には、強調照明を行う単位ホログラム５０を走査する際に、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。 In order to irradiate blue light different from white illumination in the obstacle illumination, the second laser light source 32 (green) and the third laser light source 33 (red) are incident on the unit laser array 30 that is incident on the unit hologram 50 that performs enhanced illumination. ) Is turned off and the output of the first laser light source 31 (blue) is turned on. In the case of the scanning optical device 100, when scanning the unit hologram 50 that performs enhanced illumination, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser is turned off. Control is performed to turn on the output of the light source 31 (blue).
　さて、ステップＳ４０１における判定がＮＯであるときには、ステップＳ４０８に進む。ステップＳ４０８では、撮像部１６０により撮像画像を取得し、次のステップＳ４０９では、撮像部１６０で取得された撮像画像を解析する。 Now, when the determination in step S401 is NO, the process proceeds to step S408. In step S408, the captured image is acquired by the imaging unit 160, and in the next step S409, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ４１０では、障害物が解析された撮像画像中に存在するか否かを判定する。ステップＳ４１０における障害物が解析撮像画像中に存在するかを判定する方法としては、色の違いに基づく判定方法、凹凸形状に基づく判定方法、高低差に基づく判定方法などを挙げることができる。 In step S410, it is determined whether an obstacle exists in the analyzed captured image. As a method for determining whether an obstacle exists in the analysis captured image in step S410, a determination method based on a difference in color, a determination method based on an uneven shape, a determination method based on a height difference, and the like can be given.
　ステップ２１０における判定がＮＯであれば、ステップＳ４０７に進み、エンジンストップであるか否かが判定される。ステップＳ４０７の判定がＹＥＳであれば、ステップＳ４１２に進み、処理を終了し、ステップＳ４０７の判定がＮＯであれば、再び、ステップＳ４０１に戻る。 If the determination in step 210 is NO, the process proceeds to step S407, and it is determined whether or not the engine is stopped. If the determination in step S407 is YES, the process proceeds to step S412 to end the process, and if the determination in step S407 is NO, the process returns to step S401 again.
　一方、ステップ２１０における判定がＹＥＳであれば、ステップＳ４１１に進み、光学装置１００から、判定された障害物を強調する照明光を出射するように、レーザーアレイ４０を制御する。 On the other hand, if the determination in step 210 is YES, the process proceeds to step S411, and the laser array 40 is controlled so as to emit illumination light that emphasizes the determined obstacle from the optical device 100.
　ステップＳ４１１における障害物照明においては、白色照明と異なる色（例えば、青色など）による強調照明を、障害物に対して照射する。このような強調照明は、点滅させるようにしてもよい。 In the obstacle illumination in step S411, the obstacle illumination is irradiated with a highlight illumination with a color different from the white illumination (for example, blue). Such highlighting illumination may be blinked.
　なお、障害物照明における、白色照明と異なる青色を照射するためには、強調照明を行う単位ホログラム５０に入射させる単位レーザーアレイ３０においては、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。走査型の光学装置１００の場合には、強調照明を行う単位ホログラム５０を走査する際に、第２レーザー光源３２（緑）、第３レーザー光源３３（赤）の出力をオフし、第１レーザー光源３１（青）の出力をオンとする制御を行う。 In order to irradiate blue light different from white illumination in the obstacle illumination, the second laser light source 32 (green) and the third laser light source 33 are used in the unit laser array 30 that is incident on the unit hologram 50 that performs highlight illumination. Control is performed to turn off the output of (red) and turn on the output of the first laser light source 31 (blue). In the case of the scanning optical device 100, when scanning the unit hologram 50 that performs enhanced illumination, the outputs of the second laser light source 32 (green) and the third laser light source 33 (red) are turned off, and the first laser is turned off. Control is performed to turn on the output of the light source 31 (blue).
　以上のような第４実施形態に係る光学装置１００では、上記のような強調照明によって、路上の障害物を車両２００のドライバーに認識させることができる。 In the optical device 100 according to the fourth embodiment as described above, an obstacle on the road can be recognized by the driver of the vehicle 200 by the above-described enhanced illumination.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、障害物を強調する照明を行う機能を有するので、利便性が高い。 As described above, according to the optical device 100 according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a vehicle headlamp, an obstacle is also provided. Since it has a function of performing illumination that emphasizes, it is highly convenient.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、障害物を強調する照明を行う機能を有する光学装置１００により、安全性が向上する。 Moreover, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, safety is improved by the optical device 100 having a function of performing illumination that emphasizes an obstacle.
　なお、これまで説明した全ての実施形態においては、ヘッドライトのための照明と、本発明で特徴的な照明とを一つの光学装置１００で行う構成について説明を行ったが、ヘッドライトのための照明と、本発明で特徴的な照明とをそれぞれ独立した光学装置１００で行うようにしてもよい。 In all the embodiments described so far, the configuration in which the illumination for the headlight and the illumination characteristic of the present invention are performed by one optical device 100 has been described. Illumination and illumination characteristic of the present invention may be performed by the optical device 100 independent of each other.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、特徴的構造部に対する照明を抑制したり、強調したりする機能を有するので、利便性が向上したり、安全性が向上したり、或いは、機能性が向上したりする。 As described above, according to the optical device 100 of the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and has a characteristic other than the function as a vehicle headlamp. Since it has a function of suppressing or enhancing illumination with respect to the structure portion, convenience is improved, safety is improved, or functionality is improved.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、利便性が向上したり、安全性が向上したり、或いは、機能性が向上したりする。 Further, according to the vehicle 200 equipped with the optical device 100 according to the present invention, convenience is improved, safety is improved, or functionality is improved.
　次に、以上のように構成される光学装置１００の制御について説明する。図１７は本発明の第５実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。このようなフローチャートは、制御部１１０により実行される。 Next, control of the optical device 100 configured as described above will be described. FIG. 17 is a flowchart for controlling the optical apparatus 100 according to the fifth embodiment of the present invention. Such a flowchart is executed by the control unit 110.
　本発明の第５実施形態に係る光学装置１００においては、光学装置１００をヘッドライトとして利用している際、人の顔面に対する照明を抑制、すなわち人の顔面への照明を低減する制御を行うものである。 In the optical device 100 according to the fifth embodiment of the present invention, when the optical device 100 is used as a headlight, the illumination on the human face is suppressed, that is, the control for reducing the illumination on the human face is performed. It is.
　図１７において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ５０１においては、スイッチ１４０がオンであるか否かが判定される。 In FIG. 17, when the engine (not shown) of the vehicle 200 is started by the driver, it is subsequently determined in step S501 whether or not the switch 140 is on.
　ステップＳ５０１における判定がＹＥＳであるときには、ステップＳ５０２に進み、光学装置１００から白色光を出射するように、レーザーアレイ４０を制御する。 When the determination in step S501 is YES, the process proceeds to step S502, and the laser array 40 is controlled so that white light is emitted from the optical device 100.
　ステップ１０１における判定がＮＯであれば、ステップＳ５０９に進み、エンジンストップであるか否かが判定される。ステップＳ５０９の判定がＹＥＳであれば、ステップＳ５１０に進み、処理を終了し、ステップＳ５０９の判定がＮＯであれば、再び、ステップＳ５０１に戻る。 If the determination in step 101 is NO, the process proceeds to step S509 to determine whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
　ステップＳ５０３では、撮像部１６０により撮像画像を取得し、続いて、ステップＳ５０４では、撮像部１６０の撮像画像を解析する。 In step S503, a captured image is acquired by the imaging unit 160. Subsequently, in step S504, the captured image of the imaging unit 160 is analyzed.
　ステップＳ５０５では、解析した画像に基づき、人の顔を認識したか否かが判定される。ここで、人の認識を行うには、周知の画像解析技術を用いることができる。また、人とは、歩行者や対向車のドライバーなどを想定している。 In step S505, it is determined whether or not a person's face has been recognized based on the analyzed image. Here, in order to recognize a person, a well-known image analysis technique can be used. The person is assumed to be a pedestrian or an oncoming driver.
　ステップ１０５における判定がＮＯであれば、ステップＳ５０９に進み、エンジンストップであるか否かが判定される。ステップＳ５０９の判定がＹＥＳであれば、ステップＳ５１０に進み、処理を終了し、ステップＳ５０９の判定がＮＯであれば、再び、ステップＳ５０１に戻る。 If the determination in step 105 is NO, the process proceeds to step S509 to determine whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
　一方、ステップＳ５０５における判定がＹＥＳであれば、続いて、ステップＳ５０６に進み、測距部１７０から認識した人との間の距離Ｄを取得する。 On the other hand, if the determination in step S505 is YES, the process proceeds to step S506, and the distance D between the person recognized from the distance measuring unit 170 is acquired.
　続く、ステップＳ５０７で、Ｄ＜Ｄ1であるか否かが判定される。認識した人があまりに遠隔に存在していれば、車両２００の照明を抑制したとしても、あまり意味がないので、認識した人との間の距離がＤ1より小さい場合にのみ、照明の抑制を行うようにする。 Followed in step S507, the whether D <D 1 is determined. If the recognized person is too far away, even if the lighting of the vehicle 200 is suppressed, there is not much meaning. Therefore, the lighting is suppressed only when the distance to the recognized person is smaller than D 1. To do.
　従って、ステップ１０７における判定がＮＯであれば、ステップＳ５０９に進み、エンジンストップであるか否かが判定される。ステップＳ５０９の判定がＹＥＳであれば、ステップＳ５１０に進み、処理を終了し、ステップＳ５０９の判定がＮＯであれば、再び、ステップＳ５０１に戻る。 Therefore, if the determination in step 107 is NO, the process proceeds to step S509 to determine whether or not the engine is stopped. If the determination in step S509 is YES, the process proceeds to step S510 to end the process. If the determination in step S509 is NO, the process returns to step S501 again.
　一方、ステップＳ５０７における判定がＹＥＳであれば、ステップＳ５０８に進み、対向車両のガラス部への照明を抑制するように、レーザーアレイ４０を制御する。図１８は本発明の第５実施形態に係る光学装置１００による照明例を示す図である。 On the other hand, if the determination in step S507 is YES, the process proceeds to step S508, and the laser array 40 is controlled so as to suppress illumination on the glass part of the oncoming vehicle. FIG. 18 is a diagram showing an example of illumination by the optical device 100 according to the fifth embodiment of the present invention.
　図１８（Ａ）は光学装置１００が人を認識していない場合の照明を車両２００の運転席から見た様子を示しており、　図１８（Ｂ）は光学装置１００が人を認識した場合の照明を車両２００の運転席から見た様子を示している。図１８（Ｂ）に示すように、光学装置１００が人を認識した場合には、人の顔面（特に、目の周辺）への照明を抑制する（或いは、光量を０とする）ように、レーザーアレイ４０を制御する。 FIG. 18A shows a state where the illumination when the optical device 100 does not recognize a person is viewed from the driver's seat of the vehicle 200, and FIG. 18B shows the case where the optical device 100 recognizes a person. A state in which the illumination is viewed from the driver's seat of the vehicle 200 is shown. As shown in FIG. 18B, when the optical device 100 recognizes a person, the illumination on the person's face (especially around the eyes) is suppressed (or the light amount is set to 0). The laser array 40 is controlled.
　図１８（Ｂ）に示すように、光学装置１００を制御することで、人の眼に入射する光を抑制することができ、歩行者や対向車両のドライバーの負担を軽減することができ、安全性が向上する。 As shown in FIG. 18B, by controlling the optical device 100, light incident on human eyes can be suppressed, and the burden on pedestrians and drivers of oncoming vehicles can be reduced. Improves.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、人の顔面に対する照明を抑制する機能を有するので、利便性が高い。 As described above, according to the optical device 100 according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of components, and in addition to the function as a headlight of a vehicle, Since it has a function of suppressing illumination on the face, it is highly convenient.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、人の顔面に対する照明を抑制する機能を有する光学装置１００により、安全性が向上する。 Moreover, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, safety is improved by the optical device 100 having a function of suppressing illumination on a human face.
　次に、本発明の第６実施形態について説明する。図１９は本発明の第６実施形態に係る光学装置１００のブロック図である。 Next, a sixth embodiment of the present invention will be described. FIG. 19 is a block diagram of an optical device 100 according to the sixth embodiment of the present invention.
　本発明の第６実施形態に係る光学装置１００においては、光学装置１００が搭載される車両２００は、例えば、警察車両を想定しており、光学装置１００によって特定の人物を強調的に照明する追従モードが設けられていることを特徴としている。なお、特定の人物とは、指名手配されている犯罪者や、行方不明者などを想定している。 In the optical device 100 according to the sixth embodiment of the present invention, the vehicle 200 on which the optical device 100 is mounted is assumed to be, for example, a police vehicle, and the optical device 100 emphasizes and illuminates a specific person. A mode is provided. The specific person is assumed to be a criminal who has been appointed or a missing person.
　図１９において、制御部１１０はＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）とＣＰＵ上で動作するプログラムを保持するＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ Ｍｅｍｏｒｙ）とＣＰＵのワークエリアであるＲＡＭ（Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）などからなる汎用の情報処理機構である。制御部１１０は、図示されている制御部１１０と接続される各構成と協働・動作する。 In FIG. 19, the control unit 110 is a general-purpose information processing including a CPU (Central Processing Unit), a ROM (Read Only Memory) that holds a program operating on the CPU, and a RAM (Random Access Memory) that is a work area of the CPU. Mechanism. The control unit 110 cooperates and operates with each component connected to the illustrated control unit 110.
　モード選択スイッチ１７５は、光学装置１００を追従モードとして使用するか否かを選択可能とするスイッチであり、車両２００のドライバーによって操作されることが想定されている。 The mode selection switch 175 is a switch that makes it possible to select whether to use the optical device 100 as the follow-up mode, and is assumed to be operated by the driver of the vehicle 200.
　撮像部１６０は車両２００前方の動画画像を取得するカメラである。この撮像部１６０で取得されさた画像は、制御部１１０に送信されて、制御部１１０において画像解析が行われる。 The imaging unit 160 is a camera that acquires a moving image in front of the vehicle 200. The image acquired by the imaging unit 160 is transmitted to the control unit 110, and the control unit 110 performs image analysis.
　データベース１８５には、犯罪者や、行方不明者などの顔データが記録されており、顔認識部１８０は、撮像部１６０による解析画像と、前記データベース１８５とを符合することで、特定の人物の顔を認識する。このような顔認識技術については、周知のものを用いることができる。 The database 185 stores face data of criminals, missing persons, and the like. The face recognition unit 180 matches the analysis image obtained by the imaging unit 160 with the database 185, thereby identifying a specific person. Recognize the face. As such a face recognition technique, a well-known one can be used.
　また、制御部１１０が、レーザーアレイ４０を構成する各レーザー光源を制御することで、車両２００の前方の照明を行うことができる。制御部１１０がレーザーアレイ４０を制御することで、光学装置１００を一般的な車両の前照灯として利用することもできる。さらに、制御部１１０がレーザーアレイ４０を制御することで、光学装置１００により、ライン、記号、マーク、文字などを路面に投影することもできるようになる。 Also, the controller 110 can illuminate the front of the vehicle 200 by controlling each laser light source constituting the laser array 40. The control unit 110 controls the laser array 40, so that the optical device 100 can be used as a general vehicle headlamp. Furthermore, the control unit 110 controls the laser array 40 so that the optical device 100 can project lines, symbols, marks, characters, and the like onto the road surface.
　次に、以上のように構成される第６実施形態に係る光学装置１００の制御例を説明する。図２０は本発明の第６実施形態に係る光学装置１００の制御のためのフローチャートを示す図である。 Next, a control example of the optical device 100 according to the sixth embodiment configured as described above will be described. FIG. 20 is a flowchart for controlling the optical apparatus 100 according to the sixth embodiment of the present invention.
　図２０において、車両２００のエンジン（不図示）が、ドライバーによりスタートされると、続いて、ステップＳ６０１では、モード選択スイッチ１７５の状態が参照され、追従モードがオンであるか否かが判定される。 In FIG. 20, when the engine (not shown) of the vehicle 200 is started by the driver, subsequently, in step S601, the state of the mode selection switch 175 is referred to and it is determined whether or not the follow-up mode is on. The
　ステップＳ６０１における判定がＮＯであれば、ステップＳ６０７に進み、エンジンストップであるか否かが判定される。ステップＳ６０７の判定がＹＥＳであれば、ステップＳ６０８に進み、処理を終了し、ステップＳ６０７の判定がＮＯであれば、再び、ステップＳ６０１に戻る。 If the determination in step S601 is NO, the process proceeds to step S607 to determine whether or not the engine is stopped. If the determination in step S607 is YES, the process proceeds to step S608 to end the process, and if the determination in step S607 is NO, the process returns to step S601 again.
　ステップＳ６０１における判定がＹＥＳであれば、続くステップＳ６０３では、撮像部１６０により撮像画像を取得し、次のステップＳ６０４では、撮像部１６０で取得された撮像画像を解析する。 If the determination in step S601 is YES, in the subsequent step S603, a captured image is acquired by the imaging unit 160, and in the next step S604, the captured image acquired by the imaging unit 160 is analyzed.
　ステップＳ６０４では、顔認識部１８０により、特定の人物が顔認識されたか否かが判定される。 In step S604, the face recognition unit 180 determines whether a specific person has been recognized as a face.
　ステップＳ６０４における判定がＮＯであれば、ステップＳ６０７に進み、エンジンストップであるか否かが判定される。ステップＳ６０７の判定がＹＥＳであれば、ステップＳ６０８に進み、処理を終了し、ステップＳ６０７の判定がＮＯであれば、再び、ステップＳ６０１に戻る。 If the determination in step S604 is no, the process proceeds to step S607 to determine whether or not the engine is stopped. If the determination in step S607 is YES, the process proceeds to step S608 to end the process, and if the determination in step S607 is NO, the process returns to step S601 again.
　一方、ステップＳ６０４における判定がＹＥＳであれば、ステップＳ６０５に進み、解析撮像画像により、特定人物の顔面部分を特定し、続く、ステップＳ６０６で、特定人物の顔面部を強調照明する。図２１は本発明の第６実施形態に係る光学装置１００による照明例を示す図であり、光学装置１００による照明を車両２００の運転席から見た様子を示している。 On the other hand, if the determination in step S604 is YES, the process proceeds to step S605, where the face portion of the specific person is specified from the analysis captured image, and in step S606, the face portion of the specific person is highlighted. FIG. 21 is a view showing an example of illumination by the optical device 100 according to the sixth embodiment of the present invention, and shows a state in which the illumination by the optical device 100 is viewed from the driver's seat of the vehicle 200.
　ステップＳ６０６における特定人物の強調照明においては、白色照明と異なる色（例えば、青色など）による強調照明を、特定人物の顔面部に対して照射する。なお、光学装置１００を前照灯として利用しているような場合には、このような強調照明部のみの光量を大きくするようにすることなどもできる。 In the highlight illumination of the specific person in step S606, the face illumination of the specific person is irradiated with the highlight illumination with a color different from the white illumination (for example, blue). When the optical device 100 is used as a headlamp, it is possible to increase the amount of light of only such an emphasizing illumination unit.
　また、図２２は他の照明例を説明する図である。本例では、特定人物の顔面部に加え、特定人物の足下の部分にも照明を行うように、レーザーアレイ４０を制御している。 FIG. 22 is a diagram for explaining another example of illumination. In this example, the laser array 40 is controlled so as to illuminate not only the face part of the specific person but also the part under the foot of the specific person.
　上記のような特定人物の強調照明により、車両２００が追従する特定の人物を、際だたせることができ、追従ミスなどを減少させたりすることができる。 The above-described emphasis illumination of the specific person can make the specific person that the vehicle 200 follows stand out, and can reduce following errors.
　以上、本発明に係る光学装置１００によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、特定人物を強調する照明を行う機能を有するので、利便性が高い。 As described above, according to the optical device 100 according to the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and in addition to a function as a headlight of a vehicle, a specific person Since it has a function of performing illumination that emphasizes, it is highly convenient.
　また、本発明に係る光学装置１００が搭載された車両２００によれば、特定人物を強調する照明を行う機能を有する光学装置１００により、機能性が向上する。 Further, according to the vehicle 200 on which the optical device 100 according to the present invention is mounted, the functionality is improved by the optical device 100 having a function of performing illumination to emphasize a specific person.
　なお、これまで説明した全ての実施形態においては、ヘッドライトのための照明と、本発明で特徴的な照明とを一つの光学装置１００で行う構成について説明を行ったが、ヘッドライトのための照明と、本発明で特徴的な照明とをそれぞれ独立した光学装置１００で行うようにしてもよい。 In all the embodiments described so far, the configuration in which the illumination for the headlight and the illumination characteristic of the present invention are performed by one optical device 100 has been described. Illumination and illumination characteristic of the present invention may be performed by the optical device 100 independent of each other.
　　以下、本発明の実施の形態を図面を参照しつつ説明する。図２３は本発明の第７実施形態に係る照明装置３００の構成を示す図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 23 is a diagram showing a configuration of a lighting apparatus 300 according to the seventh embodiment of the present invention.
　レーザーアレイ２３０は、所定の波長のレーザー光を出射する複数の単位レーザー光源２３１からなるものであり、本発明に係る照明装置３００の光源である。なお、本発明に係る照明装置３００では、複数の単位レーザー光源３１が紙面上下方向に配列される１次元配列のものを例に説明するが、さらに紙面に対し垂直方向にも複数の単位レーザー光源２３１を配列した２次元配列のものも構成することができる。 The laser array 230 includes a plurality of unit laser light sources 231 that emit laser light having a predetermined wavelength, and is a light source of the illumination device 300 according to the present invention. In the illumination device 300 according to the present invention, a plurality of unit laser light sources 31 are described as an example of a one-dimensional array in which the plurality of unit laser light sources 31 are arranged in the vertical direction on the paper surface. A two-dimensional array in which 231 is arranged can also be configured.
　レーザーアレイ２３０における複数の単位レーザー光源２３１は、それぞれがオンオフ制御可能に構成されている。 The plurality of unit laser light sources 231 in the laser array 230 are configured to be capable of on / off control.
　レーザーアレイ２３０を構成するそれぞれの単位レーザー光源２３１に対応して、複数のインテグレーターロッド２５０が設けられている。 A plurality of integrator rods 250 are provided corresponding to each unit laser light source 231 constituting the laser array 230.
　インテグレーターロッド２５０は、ガラス製の四角柱状の部材であり、光の入射端２５１と出射端２５２とを有している。インテグレーターロッド２５０は、入射端２５１から入射された光が、内部で全反射し、出射端２５２から出射する光の照度分布が均一化される。 The integrator rod 250 is a glass quadrangular columnar member and has an incident end 251 and an exit end 252 for light. In the integrator rod 250, the light incident from the incident end 251 is totally reflected internally, and the illuminance distribution of the light emitted from the output end 252 is made uniform.
　このようなインテグレーターロッド２５０に代え、本発明に係る照明装置３００においては、フライアイレンズや、フライアイレンズにコンデンサレンズを組み合わせる等の形態も用いることができる。さらに、内面にミラー面を備えた四角柱状の部材を用いるようにしてもよい。光の照度分布を均一化させるインテグレーターロッド２５０などは、特許請求の範囲において「均一化光学系」として表現している。 In place of such an integrator rod 250, the lighting device 300 according to the present invention may employ a form such as a fly-eye lens or a combination of a condenser lens and a fly-eye lens. Furthermore, a quadrangular prism-shaped member having a mirror surface on the inner surface may be used. The integrator rod 250 or the like for uniformizing the illuminance distribution of light is expressed as a “homogenized optical system” in the claims.
　レーザーアレイ３０を構成する複数の単位レーザー光源２３１と、それぞれの単位レーザー光源２３１に対応するインテグレーターロッド２５０との間に、複数の入射端レンズ２３５が配されている。本実施形態では、入射端レンズ２３５としては、集光を行う凸レンズが用いられている。 A plurality of incident end lenses 235 are arranged between a plurality of unit laser light sources 231 constituting the laser array 30 and an integrator rod 250 corresponding to each unit laser light source 231. In the present embodiment, a convex lens that collects light is used as the incident end lens 235.
　単位レーザー光源２３１と対応する入射端レンズ２３５、インテグレーターロッド２５０とを単位ユニットとして定義する。 The unit laser light source 231 and the corresponding incident end lens 235 and integrator rod 250 are defined as unit units.
　図２４は本発明の実施形態に係る照明装置３００の単位ユニットによる照明を説明する図である。複数の単位レーザー光源２３１から出射されたレーザー光が、複数の入射端レンズ２３５に入射し、複数の入射端レンズ２３５から出射された光が、複数のインテグレーターロッド２５０に入射する。 FIG. 24 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the embodiment of the present invention. Laser light emitted from the plurality of unit laser light sources 231 enters the plurality of incident end lenses 235, and light emitted from the plurality of incident end lenses 235 enters the plurality of integrator rods 250.
　複数のインテグレーターロッド２５０に入射された光は、内部で反射を繰り返し、出射端２５２から出射する光は照度分布が均一化される。このような単位ユニットが複数配列されている図２３の照明装置３００においては、複数の単位レーザー光源２３１を光源とする照射領域の照度の均一化を図ることが可能であり、光源の面積は概ねインテグレーターロッド２５０の出射断面積程度に拡大されるため、照明装置３００の発光部を観察者が誤って覗いた場合にも、点光源を発光させて用いる方式に比べ、安全性に配慮した設計となる。 The light incident on the plurality of integrator rods 250 is repeatedly reflected inside, and the light emitted from the exit end 252 has a uniform illuminance distribution. In the illuminating device 300 of FIG. 23 in which a plurality of such unit units are arranged, it is possible to make the illuminance uniform in the irradiation region using the plurality of unit laser light sources 231 as a light source, and the area of the light source is approximately Since the cross-sectional area of the integrator rod 250 is enlarged, even when an observer mistakenly looks into the light-emitting portion of the illumination device 300, the design is in consideration of safety compared to the method of using a point light source to emit light. Become.
　以上、本発明に係る照明装置３００によれば、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As mentioned above, according to the illuminating device 300 which concerns on this invention, while being able to perform precise light distribution control with the some unit laser light source 231, safety | security improves.
　次に、本発明の他の実施形態について説明する。図２５は本発明の第８実施形態に係る照明装置３００の単位ユニットによる照明を説明する図である。 Next, another embodiment of the present invention will be described. FIG. 25 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the eighth embodiment of the present invention.
　図２５の実施形態においても、入射端レンズ２３５として凸レンズが用いられるが、入射端レンズ２３５の光軸は、単位レーザー光源２３１から出射されたレーザー光の中心からずれている状態で配置している。 In the embodiment of FIG. 25, a convex lens is used as the incident end lens 235. However, the optical axis of the incident end lens 235 is arranged in a state shifted from the center of the laser beam emitted from the unit laser light source 231. .
　図２６は入射端レンズ２３５を、光軸の方向から見た図である。図２６に示すように、入射端レンズ２３５を４つの領域Ａ、Ｂ、Ｃ、Ｄに分割する。 FIG. 26 is a view of the incident end lens 235 viewed from the direction of the optical axis. As shown in FIG. 26, the incident end lens 235 is divided into four regions A, B, C, and D.
　単位レーザー光源２３１から出射されたレーザー光の中心を、４つの領域Ａ、Ｂ、Ｃ、Ｄのいずれかに入射させる構成とすることで、インテグレーターロッド２５０から出射される光の配光角度のパターンを、４つのパターンのいずれかとすることができる。 A pattern of the light distribution angle of the light emitted from the integrator rod 250 by making the center of the laser light emitted from the unit laser light source 231 enter one of the four regions A, B, C, and D. Can be one of four patterns.
　そこで、他の実施形態に係る照明装置３００においては、単位レーザー光源２３１から出射されたレーザー光の中心が、ある単位ユニットにおいては領域Ａに入射するように配置し、次の単位ユニットにおいては領域Ｂに入射するように配置し、次の単位ユニットにおいては領域Ｃに入射するように配置し、次の単位ユニットにおいては領域Ｄに入射するように配置し、さらに、次のある単位ユニットにおいては領域Ａに入射するように配置し、・・・というような周期で単位ユニットを配列して、照明装置３００を構成する。 Therefore, in the illumination device 300 according to another embodiment, the center of the laser light emitted from the unit laser light source 231 is arranged so as to enter the region A in a certain unit unit, and the region in the next unit unit. In the next unit unit, it is arranged so as to enter the region C. In the next unit unit, it is arranged so as to enter the region D. Further, in the next certain unit unit, The illumination device 300 is configured by arranging the unit units so as to be incident on the region A and arranging the unit units in a cycle such as...
　上記のような構成により、個々の単位ユニットによる４つの配光角度パターンの照射領域が重なり合って、全体としてより均一な照明領域を形成することが可能となる。 With the configuration as described above, the irradiation areas of the four light distribution angle patterns by the individual unit units are overlapped to form a more uniform illumination area as a whole.
　なお、以上の説明では、入射端レンズ２３５を４つの領域Ａ、Ｂ、Ｃ、Ｄに分割し、それぞれの領域に単位レーザー光源２３１から出射されたレーザー光の中心を入射させる構成について説明したが、入射端レンズ２３５を物理的に分割して、１／４に分割されたレンズを用いるにしてもよい。 In the above description, the configuration in which the incident end lens 235 is divided into four regions A, B, C, and D and the center of the laser beam emitted from the unit laser light source 231 is incident on each region is described. The incident end lens 235 may be physically divided to use a lens divided into ¼.
　また、入射端レンズ２３５を領域に分割する上では、４つの領域に限らず、照明装置３００の用途により、２以上の領域に分割するようにすればよい。 Further, when the incident end lens 235 is divided into regions, it is not limited to four regions, and may be divided into two or more regions depending on the use of the lighting device 300.
　以上、第８実施形態に係る照明装置１００によれば、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As mentioned above, according to the illuminating device 100 which concerns on 8th Embodiment, while being able to perform precise light distribution control with the some unit laser light source 231, safety | security improves.
　次に、本発明の他の実施形態について説明する。図２７は本発明の第９実施形態に係る照明装置３００の単位ユニットによる照明を説明する図である。第９実施形態は、第７実施形態と同様の入射端レンズ２３５を有しているが、インテグレーターロッド２５０の出射端２５２から出射した光が入射される出射端レンズ２５５も有していることを特徴としている。 Next, another embodiment of the present invention will be described. FIG. 27 is a diagram illustrating illumination by a unit unit of the illumination device 300 according to the ninth embodiment of the present invention. The ninth embodiment has an incident end lens 235 similar to that of the seventh embodiment, but also has an exit end lens 255 into which light emitted from the exit end 252 of the integrator rod 250 is incident. It is a feature.
　出射端レンズ２５５としては凸レンズが用いられるが、出射端レンズ２５５の光軸は、単位レーザー光源２３１から出射されたレーザー光の中心からずれている状態で配置している。このように出射端レンズ２５５を配する考え方は第８実施形態と同様である。すなわち、出射端レンズ２５５も図２６同様に４つの領域Ａ、Ｂ、Ｃ、Ｄに分割されている。 Although a convex lens is used as the exit end lens 255, the optical axis of the exit end lens 255 is arranged in a state shifted from the center of the laser beam emitted from the unit laser light source 231. The concept of arranging the exit end lens 255 in this way is the same as in the eighth embodiment. That is, the exit end lens 255 is also divided into four regions A, B, C, and D as in FIG.
　第９実施形態においては、インテグレーターロッド２５０から出射される光を、出射端レンズ２５５の４つの領域Ａ、Ｂ、Ｃ、Ｄのいずれかに入射させる構成とすることで、出射端レンズ２５５から出射される光の配光角度のパターンを、４つのパターンのいずれかとする。 In the ninth embodiment, the light emitted from the integrator rod 250 is made incident on any one of the four regions A, B, C, and D of the emission end lens 255, so that it is emitted from the emission end lens 255. The pattern of the light distribution angle of the emitted light is one of four patterns.
　そこで、他の実施形態に係る照明装置３００においては、インテグレーターロッド２５０から出射される光の中心（位置的には、実質的に、単位レーザー光源２３１から出射されたレーザー光の中心）が、ある単位ユニットにおいては領域Ａに入射するように配置し、次の単位ユニットにおいては領域Ｂに入射するように配置し、次の単位ユニットにおいては領域Ｃに入射するように配置し、次の単位ユニットにおいては領域Ｄに入射するように配置し、さらに、次のある単位ユニットにおいては領域Ａに入射するように配置し、・・・というような周期で単位ユニットを配列して、照明装置３００を構成する。 Therefore, in the illumination device 300 according to another embodiment, there is a center of light emitted from the integrator rod 250 (positionally, substantially the center of the laser light emitted from the unit laser light source 231). The unit unit is arranged so as to be incident on the region A, the next unit unit is arranged so as to be incident on the region B, the next unit unit is arranged so as to be incident on the region C, and the next unit unit is arranged. Is arranged so as to be incident on the region D, and is arranged so as to be incident on the region A in the next certain unit unit. Constitute.
　上記のような構成により、個々の単位ユニットによる４つの配光角度パターンの照射領域が重なり合って、全体としてより均一な照明領域を形成することが可能となる。 With the configuration as described above, the irradiation areas of the four light distribution angle patterns by the individual unit units are overlapped to form a more uniform illumination area as a whole.
　なお、以上の説明では、出射端レンズ２５５を４つの領域Ａ、Ｂ、Ｃ、Ｄに分割し、それぞれの領域に単位レーザー光源２３１から出射されたレーザー光の中心を入射させる構成について説明したが、出射端レンズ２５５を物理的に分割して、１／４に分割されたレンズを用いるにしてもよい。 In the above description, the configuration has been described in which the exit end lens 255 is divided into four regions A, B, C, and D, and the center of the laser light emitted from the unit laser light source 231 is incident on each region. The exit end lens 255 may be physically divided to use a lens divided into ¼.
　また、出射端レンズ２５５を領域に分割する上では、４つの領域に限らず、照明装置３００の用途により、２以上の領域に分割するようにすればよい。 Further, in dividing the exit end lens 255 into regions, the region is not limited to four regions, and may be divided into two or more regions depending on the application of the lighting device 300.
　以上、第９実施形態に係る照明装置３００によっても、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, also with the illumination device 300 according to the ninth embodiment, precise light distribution control can be performed by the plurality of unit laser light sources 231 and safety is improved.
　次に、本発明の他の実施形態について説明する。図２８は本発明の第１０実施形態に係る照明装置３００の単位ユニットによる照明を説明する図である。第９実施形態においては、インテグレーターロッド２５０の出射端５２側に出射端レンズ２５５を配し、インテグレーターロッド２５０から出射した光を出射端レンズ５５に入射させるようにしていた。 Next, another embodiment of the present invention will be described. FIG. 28 is a diagram for explaining illumination by a unit unit of the illumination apparatus 300 according to the tenth embodiment of the present invention. In the ninth embodiment, the exit end lens 255 is arranged on the exit end 52 side of the integrator rod 250 so that the light emitted from the integrator rod 250 is incident on the exit end lens 55.
　これに対して、本発明の第１０実施形態に係る照明装置１００においては、インテグレーターロッド２５０の出射端２５２側にプリズム２６０を配するようにしている。そして、インテグレーターロッド２５０の出射端２５２から出射した光は、プリズム２６０に入射させる。プリズム２６０に入射した光はプリズム２６０内で屈折し、プリズム２６０から出射される。 In contrast, in the illumination device 100 according to the tenth embodiment of the present invention, the prism 260 is disposed on the exit end 252 side of the integrator rod 250. Then, the light emitted from the emission end 252 of the integrator rod 250 is incident on the prism 260. The light incident on the prism 260 is refracted in the prism 260 and is emitted from the prism 260.
　以上のような実施形態でも、個々の単位ユニットに属するインテグレーターロッド２５０から出射する光の配光角度を適宜調整できるので、全体としてより均一な照明領域を形成することが可能となる。 Also in the embodiment as described above, the light distribution angle of the light emitted from the integrator rod 250 belonging to each unit unit can be adjusted as appropriate, so that a more uniform illumination region can be formed as a whole.
　以上、第１０実施形態に係る照明装置３００によっても、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, also with the illumination device 300 according to the tenth embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
　次に、本発明の他の実施形態について説明する。図２９は本発明の第１１実施形態に係る照明装置３００の単位ユニットによる照明を説明する図である。第１０実施形態においては、インテグレーターロッド２５０の出射端２５２側にプリズム２６０を配し、インテグレーターロッド２５０から出射した光をプリズム２６０に入射させるようにしていた。 Next, another embodiment of the present invention will be described. FIG. 29 is a diagram for explaining illumination by a unit unit of the illumination apparatus 300 according to the eleventh embodiment of the present invention. In the tenth embodiment, the prism 260 is disposed on the exit end 252 side of the integrator rod 250 so that the light emitted from the integrator rod 250 is incident on the prism 260.
　これに対して、本発明の第１０実施形態に係る照明装置３００においては、インテグレーターロッド２５０の出射端２５２側にホログラム２７０を配するようにしている。そして、インテグレーターロッド２５０の出射端２５２から出射した光は、ホログラム２７０に入射させる。ホログラム２７０に入射した光は、ホログラム２７０に記録されているパターンに基づき、ホログラム２７０から拡散光が出射される。 In contrast, in the illumination device 300 according to the tenth embodiment of the present invention, the hologram 270 is arranged on the exit end 252 side of the integrator rod 250. Then, the light emitted from the emission end 252 of the integrator rod 250 is incident on the hologram 270. The light incident on the hologram 270 is diffused from the hologram 270 based on the pattern recorded on the hologram 270.
　ホログラム２７０は、光の透過率に優れ、出射する拡散光の拡散角の選択が可能であるので、本発明に係る照明装置３００にとっても好適である。 The hologram 270 is suitable for the illumination device 300 according to the present invention because it has excellent light transmittance and allows selection of the diffusion angle of the emitted diffused light.
　以上のような実施形態でも、個々の単位ユニットに属するインテグレーターロッド２５０から出射する光の配光角度を適宜調整できるので、全体としてより均一な照明領域を形成することが可能となる。 Also in the embodiment as described above, the light distribution angle of the light emitted from the integrator rod 250 belonging to each unit unit can be adjusted as appropriate, so that a more uniform illumination region can be formed as a whole.
　以上、第１１実施形態に係る照明装置３００によっても、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, also with the illumination device 300 according to the eleventh embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
　次に、本発明の他の実施形態について説明する。図３０は本発明の第１２実施形態に係る照明装置３００の構成を示す図である。 Next, another embodiment of the present invention will be described. FIG. 30 is a diagram showing a configuration of a lighting apparatus 300 according to the twelfth embodiment of the present invention.
　これまで説明した実施形態においては、単位レーザー光源２３１から出射されるレーザー光の進行方向と、対応するインテグレーターロッド５０の長手方向とは平行であった。 In the embodiments described so far, the traveling direction of the laser light emitted from the unit laser light source 231 and the longitudinal direction of the corresponding integrator rod 50 are parallel.
　すなわち、インテグレーターロッド２５０の長手方向と、単位レーザー光源２３１から出射されるレーザー光の進行方向とがなす角度は０°であった。なお、インテグレーターロッド２５０の長手方向とは、入射端２５１と出射端２５２とを結ぶ方向と定義する。 That is, the angle formed by the longitudinal direction of the integrator rod 250 and the traveling direction of the laser light emitted from the unit laser light source 231 was 0 °. The longitudinal direction of the integrator rod 250 is defined as a direction connecting the incident end 251 and the emission end 252.
　これに対して、図３０に示す第１２実施形態に係る照明装置３００においては、インテグレーターロッド２５０の長手方向と、単位レーザー光源２３１から出射されるレーザー光の進行方向とが、０°より大きい角度をなすことを特徴としている。 On the other hand, in the illumination device 300 according to the twelfth embodiment shown in FIG. 30, the angle between the longitudinal direction of the integrator rod 250 and the traveling direction of the laser light emitted from the unit laser light source 231 is greater than 0 °. It is characterized by making.
　このように、インテグレーターロッド２５０の長手方向の向きを物理的に変更することでも、インテグレーターロッド２５０から出射される光の制御を行え、照明装置３００による照射領域を制御することができる。第１２実施形態に係る照明装置３００によれば、放射状に照明を行うこととなるので、意匠性が向上した照明装置３００を提供することができる。 Thus, even by physically changing the longitudinal direction of the integrator rod 250, the light emitted from the integrator rod 250 can be controlled, and the irradiation area by the illumination device 300 can be controlled. According to the illuminating device 300 which concerns on 12th Embodiment, since it will illuminate radially, the illuminating device 300 which the designability improved can be provided.
　以上、第１２実施形態に係る照明装置３００によっても、複数の単位レーザー光源２３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, also with the illumination device 300 according to the twelfth embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 231 and to improve safety.
　また、以上のような本発明に係る照明装置３００においては、レーザーアレイ２３０の各単位レーザー光源２３１を変調し、すなわち、各単位レーザー光源２３１を選択的にオンオフしたり、或いは減光したりして、対応するインテグレーターロッド２５０のみに選択的にレーザー光を入射させることにより、任意の照明分布を作ることができる。 In the illumination device 300 according to the present invention as described above, each unit laser light source 231 of the laser array 230 is modulated, that is, each unit laser light source 231 is selectively turned on / off or dimmed. An arbitrary illumination distribution can be created by selectively making the laser light incident only on the corresponding integrator rod 250.
　次に、本発明の他の実施形態について説明する。図３１は本発明の第１３実施形態に係る照明装置３００の構成を示す図である。 Next, another embodiment of the present invention will be described. FIG. 31 is a diagram showing a configuration of a lighting apparatus 300 according to the thirteenth embodiment of the present invention.
　これまで説明した実施形態においては、単位レーザー光源２３１は１次元方向に配列されたものに基づいて説明を行った。これに対して、第１３実施形態に係る照明装置３００では、複数の単位レーザー光源２３１の配列方向が１次元方向のみでなく、例えば、図３１に示すように、１次元方向及びそれと直交する２次元方向に配列され、結果、斜め状に単位レーザー光源２３１が配列したりすることを特徴としている。 In the embodiments described so far, the unit laser light sources 231 are described based on those arranged in a one-dimensional direction. On the other hand, in the illuminating device 300 according to the thirteenth embodiment, the arrangement direction of the plurality of unit laser light sources 231 is not limited to the one-dimensional direction. For example, as illustrated in FIG. As a result, the unit laser light sources 231 are arranged in an oblique manner.
　第１３実施形態に係る照明装置３００によれば、例えば、斜め状に照明を行うこととなるので、意匠性が向上した照明装置３００を提供することができる。 According to the illuminating device 300 according to the thirteenth embodiment, for example, since illumination is performed obliquely, the illuminating device 300 with improved design can be provided.
　以上、第１３実施形態に係る照明装置３００によっても、複数の単位レーザー光源３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, also with the illumination device 300 according to the thirteenth embodiment, it is possible to perform precise light distribution control by the plurality of unit laser light sources 31 and to improve safety.
　以上、本発明に係る照明装置３００によれば、精密な配光制御を行うことが可能であると共に、安全性が向上する。 As mentioned above, according to the illuminating device 300 which concerns on this invention, while being able to perform precise light distribution control, safety | security improves.
　また、本発明に係る照明装置３００によれば、意匠性が向上した照明装置を提供することができる。 Moreover, according to the lighting device 300 according to the present invention, it is possible to provide a lighting device with improved design.
　なお、第１乃至第１３実施形態に係る照明装置３００を任意に組み合わせて構成した実施形態についても本発明の範疇に属するものである。 It should be noted that embodiments configured by arbitrarily combining the lighting devices 300 according to the first to thirteenth embodiments also belong to the category of the present invention.
　　以下、本発明の実施の形態を図面を参照しつつ説明する。図３２は本発明の第１４実施形態に係る照明装置５００の構成を示す図である。また、図３３は本発明の第１４実施形態に係る照明装置５００の斜視図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 32 is a diagram showing a configuration of a lighting apparatus 500 according to the fourteenth embodiment of the present invention. FIG. 33 is a perspective view of a lighting apparatus 500 according to a fourteenth embodiment of the present invention.
　レーザーアレイ４３０は、所定の波長のレーザー光を出射する複数の単位レーザー光源４３１からなるものであり、本発明に係る照明装置５００の光源である。なお、本発明に係る照明装置５００では、複数の単位レーザー光源４３１が図３２の紙面上下方向に配列される１次元配列のものを例に説明するが、さらに１次元の配列方向と直交する方向（紙面垂直方向）にも複数の単位レーザー光源４３１を配列した２次元配列のものも構成することができる。 The laser array 430 includes a plurality of unit laser light sources 431 that emit laser light having a predetermined wavelength, and is a light source of the illumination device 500 according to the present invention. In the illumination device 500 according to the present invention, a description will be given by taking as an example a one-dimensional array in which a plurality of unit laser light sources 431 are arranged in the vertical direction on the paper surface of FIG. 32, but a direction orthogonal to the one-dimensional arrangement direction. A two-dimensional array in which a plurality of unit laser light sources 431 are arrayed (in the direction perpendicular to the paper surface) can also be configured.
　レーザーアレイ４３０における複数の単位レーザー光源４３１は、それぞれがオンオフ制御可能に構成されている。 Each of the plurality of unit laser light sources 431 in the laser array 430 is configured to be capable of on / off control.
　本発明に係る照明装置５００においては、レーザーアレイ４３０を構成する複数の単位レーザー光源４３１と、それぞれの単位レーザー光源４３１に対応する複数の入射端レンズ４３５が配されている。本実施形態では、入射端レンズ４３５としては、集光を行う凸レンズが用いられている。 In the illumination apparatus 500 according to the present invention, a plurality of unit laser light sources 431 constituting the laser array 430 and a plurality of incident end lenses 435 corresponding to the unit laser light sources 431 are arranged. In the present embodiment, a convex lens that collects light is used as the incident end lens 435.
　入射端レンズ４３５のレーザーアレイ３０が配されていない側には、導光部材４５０が配されている。導光部材４５０は、対向する２つの低屈折率層４５１の間に高屈折率層４５２が挟まれたような構造である。導光部材４５０の入射端４５５に入射した光は、通常の光ファイバーと同様に、低屈折率層４５１と高屈折率層４５２の境界での全反射によって、出射端４５６に到達することなる。 A light guide member 450 is disposed on the side of the incident end lens 435 where the laser array 30 is not disposed. The light guide member 450 has a structure in which a high refractive index layer 452 is sandwiched between two opposing low refractive index layers 451. The light incident on the incident end 455 of the light guide member 450 reaches the emission end 456 by total reflection at the boundary between the low refractive index layer 451 and the high refractive index layer 452, as in a normal optical fiber.
　例えば、導光部材４５０は、屈折率の異なる２種類の有機高分子材料などによっても構成することができるが、反射板を対向させたのみの単純な構成でもよい。この場合、光は空気中を伝搬することとなる。 For example, the light guide member 450 can be formed of two kinds of organic polymer materials having different refractive indexes, but may have a simple structure in which the reflectors are opposed to each other. In this case, light propagates in the air.
　導光部材４５０の出射端４５６には、ホログラム４８０が配されている。導光部材４５０の出射端４５６から出射した光は、ホログラム４８０に入射させる。ホログラム４８０に入射した光は、ホログラム４８０に記録されているパターンに基づき、ホログラム４８０から拡散光として出射される。 A hologram 480 is disposed on the light exit end 456 of the light guide member 450. Light emitted from the emission end 456 of the light guide member 450 is incident on the hologram 480. The light incident on the hologram 480 is emitted from the hologram 480 as diffused light based on the pattern recorded on the hologram 480.
　ホログラム４８０は、光の透過率に優れ、出射する拡散光の拡散角の選択が可能であるので、本発明に係る照明装置５００にとって好適であるが、ホログラム４８０に代えてレンズアレイなどを用いるようにしてもよい。 The hologram 480 is excellent for the light transmittance and is suitable for the illumination device 500 according to the present invention because the diffusion angle of the emitted diffused light can be selected. However, a lens array or the like is used instead of the hologram 480. It may be.
　図３３は本発明の第１４実施形態に係る照明装置５００による照明を説明する図である。複数の単位レーザー光源４３１から出射されたレーザー光が、複数の入射端レンズ４３５に入射し、複数の入射端レンズ４３５から出射された光が、入射端４５５から導光部材４５０の高屈折率層４５２に入射する。
導光部材４５０に入射した光は、高屈折率層４５２と低屈折率層４５１の境界面で生ずる全反射によって、基本的に高屈折率層４５２の外に漏れることなく、出射端４５６まで伝搬し、出射端４５６から出射する。 FIG. 33 is a view for explaining illumination by the illumination device 500 according to the fourteenth embodiment of the present invention. Laser light emitted from the plurality of unit laser light sources 431 enters the plurality of incident end lenses 435, and light emitted from the plurality of incident end lenses 435 passes from the incident end 455 to the high refractive index layer of the light guide member 450. 452.
The light that has entered the light guide member 450 propagates to the output end 456 basically without leaking out of the high refractive index layer 452 due to total reflection occurring at the interface between the high refractive index layer 452 and the low refractive index layer 451. Then, the light is emitted from the emission end 456.
　出射端４５６から出射した光はホログラム４８０に入射し、ホログラム４８０に記録されているパターンに基づき、ホログラム４８０から拡散光が出射される。 The light emitted from the emission end 456 enters the hologram 480, and diffused light is emitted from the hologram 480 based on the pattern recorded on the hologram 480.
　導光部材４５０に入射された光は、内部で反射を繰り返し、出射端４５６から出射する光は照度分布が均一化される。このような本発明に係る照明装置５００においては、複数の単位レーザー光源４３１を光源とする照射領域の照度、および輝度の均一化を図ることが可能となるために、目の安全性に配慮した設計となっている。また、導光部材４５０の出射端４５６には、ホログラム４８０が設けられており、このホログラム４８０から拡散光が出射される。 The light incident on the light guide member 450 is repeatedly reflected inside, and the light emitted from the emission end 456 has a uniform illuminance distribution. In such an illumination device 500 according to the present invention, it is possible to make the illuminance and luminance uniform in the irradiation region using the plurality of unit laser light sources 431 as light sources, so that safety of eyes is taken into consideration. Designed. In addition, a hologram 480 is provided at the emission end 456 of the light guide member 450, and diffused light is emitted from the hologram 480.
　以上のように、本発明に係る照明装置５００によれば、複数の単位レーザー光源４３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 As described above, according to the illumination device 500 of the present invention, it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
　次に、本発明の他の実施形態について説明する。図３５は本発明の第１５実施形態に係る照明装置５００による照明を説明する図である。 Next, another embodiment of the present invention will be described. FIG. 35 is a view for explaining illumination by the illumination apparatus 500 according to the fifteenth embodiment of the present invention.
　第１４実施形態に係る照明装置５００においては、入射端レンズ４３５として複数の凸レンズが設けられていたが、第１５実施形態に係る照明装置５００においては、複数の凸レンズに代え、入射端レンズ４３５としてシリンドリカルレンズ４６０が設けられることを特徴としている。このシリンドリカルレンズ４６０は、複数の単位レーザー光源４３１から出射されたレーザー光を集光レンズとして用いられる。 In the illumination device 500 according to the fourteenth embodiment, a plurality of convex lenses are provided as the incident end lens 435. However, in the illumination device 500 according to the fifteenth embodiment, the incident end lens 435 is replaced with a plurality of convex lenses. A cylindrical lens 460 is provided. The cylindrical lens 460 uses laser light emitted from the plurality of unit laser light sources 431 as a condenser lens.
　複数の凸レンズに代えて、このようなシリンドリカルレンズ４６０を用いると、部品点数を大幅に減らすことができるので、製造性も向上し、安価に照明装置５００を提供することができるというメリットがある。 When such a cylindrical lens 460 is used in place of a plurality of convex lenses, the number of parts can be greatly reduced, so that there is an advantage that the illuminating device 500 can be provided at a low cost by improving the manufacturability.
　また、このような他の実施形態に係る照明装置５００によっても、複数の単位レーザー光源４３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 In addition, with the illumination device 500 according to such another embodiment, it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
　次に、本発明の他の実施形態について説明する。図３５は本発明の第１６実施形態に係る照明装置１００による照明を説明する図である。 Next, another embodiment of the present invention will be described. FIG. 35 is a view for explaining illumination by the illumination device 100 according to the sixteenth embodiment of the present invention.
　第１４実施形態に係る照明装置５００においては、入射端レンズ４３５として複数の凸レンズが設けられていたが、第１６実施形態に係る照明装置５００においては、複数の凸レンズに代え、入射端レンズ４３５としてトーリックレンズ４７０が設けられることを特徴としている。このトーリックレンズ４７０は、複数の単位レーザー光源４３１から出射されたレーザー光を集光レンズとして用いられる。 In the illumination device 500 according to the fourteenth embodiment, a plurality of convex lenses are provided as the incident end lens 435. However, in the illumination device 500 according to the sixteenth embodiment, the incident end lens 435 is replaced with a plurality of convex lenses. A toric lens 470 is provided. The toric lens 470 uses laser light emitted from a plurality of unit laser light sources 431 as a condenser lens.
　複数の凸レンズに代えて、このようなトーリックレンズ４７０を用いると、部品点数を大幅に減らすことができるので、製造性も向上し、安価に照明装置５００を提供することができるというメリットがある。 If such a toric lens 470 is used instead of a plurality of convex lenses, the number of parts can be greatly reduced, so that there is an advantage that the illuminating device 500 can be provided at a low cost by improving the manufacturability.
　さらに、照明装置５００照明領域の中心部により光量が必要である場合などに、入射端レンズ３５としてトーリックレンズ４７０を用いると好適である。 Furthermore, it is preferable to use the toric lens 470 as the incident end lens 35 when a light amount is necessary at the center of the illumination area of the illumination device 500.
　また、このような他の実施形態に係る照明装置５００によっても、複数の単位レーザー光源４３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 In addition, with the illumination device 500 according to such another embodiment, it is possible to perform precise light distribution control by the plurality of unit laser light sources 431, and safety is improved.
　次に、本発明の他の実施形態について説明する。図３６は本発明の第１７実施形態に係る照明装置５００による照明を説明する図である。 Next, another embodiment of the present invention will be described. FIG. 36 is a view for explaining illumination by the illumination device 500 according to the seventeenth embodiment of the present invention.
　これまで説明した実施形態においては、導光部材４５０は平面平板状のものが用いられていたが、第１７実施形態に係る照明装置５００においては、この導光部材４５０が熱プレスによって成型されていることが特徴点である。 In the embodiment described so far, the light guide member 450 is a flat plate, but in the lighting device 500 according to the seventeenth embodiment, the light guide member 450 is molded by hot pressing. It is a feature point.
　導光部材４５０を、高屈折率層４５２の有機高分子材料と、低屈折率層４５１の有機高分子材料とで製造することが前提となるが、有機高分子材料で製造された導光部材４５０は、適当な型を用いて熱プレスなどを行うと、容易に成型が可能である。このような成型で、入射端４５５はレーザーアレイ４３０からのレーザー光が入射されることに合わせて矩形状とする一方で、出射端４５６は、例えば、図示するように略Ｖ字状とすることなどが可能となる。 It is assumed that the light guide member 450 is manufactured with the organic polymer material of the high refractive index layer 452 and the organic polymer material of the low refractive index layer 451, but the light guide member manufactured with the organic polymer material 450 can be easily molded by hot pressing using an appropriate mold. With such molding, the incident end 455 is rectangular in accordance with the incidence of laser light from the laser array 430, while the emission end 456 is, for example, substantially V-shaped as shown. It becomes possible.
　なお、低屈折率層４５１を構成する有機高分子材料としては、例えばフッ素系エポキシ樹脂、フルオロアクリル酸系ポリマー等を用いることができ、また、高屈折率層４５２を構成する有機高分子材料としては、ポリカーボネート、ＰＭＭＡ（ポリメチルメタクリレート）等を用いることができる。 As the organic polymer material constituting the low refractive index layer 451, for example, a fluorine-based epoxy resin, a fluoroacrylic acid polymer, or the like can be used, and as the organic polymer material constituting the high refractive index layer 452, May be polycarbonate, PMMA (polymethyl methacrylate), or the like.
　また、本実施形態においては、導光部材４５０を熱プレスによって成型する方法について説明したが、熱プレスによる成型以外にも、例えば、押し出し成型等によっても、導光部材４５０の成型が可能である。 In the present embodiment, the method of forming the light guide member 450 by hot pressing has been described. However, the light guide member 450 can be formed by, for example, extrusion molding in addition to the hot press molding. .
　導光部材４５０を熱プレスで成型しても、２つの低屈折率層４５１で挟まれた高屈折率層４５２の機能は変わることはない。このように、成型によって導光部材４５０を加工する第１７実施形態に係る照明装置５００によれば、例えば、略Ｖ字状の照明を行うこととなるので、意匠性が向上した照明装置５００を提供することができる。また、本発明に係る照明装置５００によれば、照明装置５００の製造性が向上する。 Even if the light guide member 450 is molded by hot pressing, the function of the high refractive index layer 452 sandwiched between the two low refractive index layers 451 does not change. Thus, according to the illuminating device 500 which processes the light guide member 450 by shaping | molding, for example, since substantially V-shaped illumination will be performed, the illuminating device 500 with which the design property improved is provided. Can be provided. Moreover, according to the illuminating device 500 which concerns on this invention, the manufacturability of the illuminating device 500 improves.
　さらに、ホログラム４８０の記録パターンを、例えば４８０ａ側と４８０ｂ側とで異なるものとすることなどで、さらに意匠性が増す。 Furthermore, the design properties are further increased by making the recording pattern of the hologram 480 different on the 480a side and the 480b side, for example.
　また、第１７実施形態に係る照明装置５００によっても、複数の単位レーザー光源４３１により精密な配光制御を行うことが可能であると共に、安全性が向上する。 Also, with the illumination device 500 according to the seventeenth embodiment, it is possible to perform precise light distribution control with the plurality of unit laser light sources 431, and safety is improved.
　また、以上のような本発明に係る照明装置５００においては、レーザーアレイ４３０の各単位レーザー光源４３１を変調し、すなわち、各単位レーザー光源４３１を選択的にオンオフしたり、或いは減光したりして、導光部材４５０に選択的にレーザー光を入射させることにより、任意の照明分布を作ることができる。 In the illumination device 500 according to the present invention as described above, each unit laser light source 431 of the laser array 430 is modulated, that is, each unit laser light source 431 is selectively turned on / off or dimmed. Thus, an arbitrary illumination distribution can be created by selectively allowing laser light to enter the light guide member 450.
　また、導光部材４５０に用いる材料としては、有機高分子材料以外の材料を用いることもできる。例えば、導光部材４５０の材料として、ポリマー以外に積層したガラス材料や、フォトニック結晶等も使用可能である。導光部材４５０の材料として、積層ガラス材料を用いる場合には、Ｇｅ、Ｐなどの元素をドープすることで高屈折率層４５２とすることができるし、また、Ｂ、Ｆなどの元素をドープすることで低屈折率層４５１とすることができる。 Further, as the material used for the light guide member 450, a material other than the organic polymer material can be used. For example, as the material of the light guide member 450, a glass material laminated in addition to the polymer, a photonic crystal, or the like can be used. When a laminated glass material is used as the material of the light guide member 450, the high refractive index layer 452 can be formed by doping elements such as Ge and P, and elements such as B and F can be doped. Thus, the low refractive index layer 451 can be obtained.
　以上、本発明に係る照明装置５００によれば、精密な配光制御を行うことが可能であると共に、安全性が向上する。 As mentioned above, according to the illuminating device 500 which concerns on this invention, while being able to perform precise light distribution control, safety | security improves.
　また、本発明に係る照明装置５００によれば、意匠性が向上した照明装置５００を提供することができる。 Moreover, according to the illuminating device 500 which concerns on this invention, the illuminating device 500 with which the design property improved can be provided.
　また、本発明に係る照明装置５００によれば、照明装置５００の製造性が向上する。 Moreover, according to the illuminating device 500 which concerns on this invention, the manufacturability of the illuminating device 500 improves.
産業上の利用性Industrial availability
　従来、ある程度の光色制御が可能な構成の光学装置を提供することは可能であるが、より緻密な色の変化や、配光制御という観点では、機能性が十分でない、という問題があった。また、あくまでも車両の前照灯としての機能のみが明示されており、運転者の利便性や安全性の更なる向上といった点については配慮されていない。一方、本発明に係る光学装置によれば、部品点数を低減した簡便で安価な構成の光学装置を提供することが可能であるとともに、車両の前照灯としての機能以外にも、特徴的構造部に対する照明を抑制したり、強調したりする機能を有するので、利便性が向上したり、安全性が向上したり、或いは、機能性が向上したりすることができ、産業上の利用性が非常に大きい。 Conventionally, it is possible to provide an optical device having a configuration capable of controlling light color to some extent, but there has been a problem that functionality is not sufficient in terms of more precise color change and light distribution control. . Further, only the function as a vehicle headlamp is clearly described, and consideration is not given to further improvements in convenience and safety for the driver. On the other hand, according to the optical device of the present invention, it is possible to provide an optical device having a simple and inexpensive configuration with a reduced number of parts, and has a characteristic structure in addition to the function as a vehicle headlamp. Because it has the function to suppress or emphasize the lighting on the part, it can improve convenience, improve safety, or improve functionality, and industrial applicability Very big.
１０・・・単位ユニット
３０・・・単位レーザーアレイ
３１・・・第１レーザー光源
３２・・・第２レーザー光源
３３・・・第３レーザー光源
４０・・・レーザーアレイ
５０・・・単位ホログラム
５１・・・第１記憶領域
５２・・・第２記憶領域
５３・・・第３記憶領域
６０・・・ホログラム
７０・・・ミラー（走査部）
１００・・・光学装置
１１０・・・制御部
１４０・・・スイッチ
１６０・・・撮像部
１７０・・・測距部
１７５・・・モード選択スイッチ
１８０・・・顔認識部
１８５・・・データベース
２００・・・車両
２３０・・・レーザーアレイ
２３１・・・単位レーザー光源
２３５・・・入射端レンズ
２５０・・・インテグレーターロッド
２５１・・・入射端
２５２・・・出射端
２５５・・・出射端レンズ
２６０・・・プリズム
２７０・・・ホログラム
３００・・・照明装置
４３０・・・レーザーアレイ
４３１・・・単位レーザー光源
４３５・・・入射端レンズ
４５０・・・導光部材
４５１・・・低屈折率層
４５２・・・高屈折率層
４５５・・・入射端
４５６・・・出射端
４６０・・・シリンドリカルレンズ
４７０・・・トーリックレンズ
４８０・・・ホログラム
５００・・・照明装置 10 unit unit 30 unit laser array 31 first laser light source 32 second laser light source 33 third laser light source 40 laser array 50 unit hologram 51 ... first storage area 52 ... second storage area 53 ... third storage area 60 ... hologram 70 ... mirror (scanning section)
DESCRIPTION OF SYMBOLS 100 ... Optical apparatus 110 ... Control part 140 ... Switch 160 ... Imaging part 170 ... Distance measuring part 175 ... Mode selection switch 180 ... Face recognition part 185 ... Database 200 ... Vehicle 230 ... Laser array 231 ... Unit laser light source 235 ... Incident end lens 250 ... Integrator rod 251 ... Incident end 252 ... Outlet end 255 ... Outlet end lens 260 ... Prism 270 ... Hologram 300 ... Illumination device 430 ... Laser array 431 ... Unit laser light source 435 ... Incident end lens 450 ... Light guide member 451 ... Low refractive index layer 452 ... High refractive index layer 455 ... Incident end 456 ... Outgoing end 460 ... Cylindrical lens 470 ... Toric lens 480 ... Hologram 500 ... lighting device

Claims (20)

  1. 移動体に搭載され、照明を行う光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光を、走査光として射出する走査部と、
    前記走査光が入射され、光を出射することで照明を行う光学素子と、
    移動体周辺を撮像する撮像部と、
    前記撮像部で撮像した画像を解析し特徴的構造部が存在するかを判定する判定部と、を有し、
    前記判定部で特徴的構造部が存在すると判定すると、特徴的構造部への照明を抑制するか、又は、強調することを特徴とする光学装置。     An optical device that is mounted on a moving body and performs illumination,
    A laser light source for emitting laser light;
    A scanning unit that emits laser light emitted from the laser light source as scanning light;
    An optical element that illuminates by entering the scanning light and emitting the light; and
    An imaging unit for imaging the periphery of the moving body;
    A determination unit that analyzes an image captured by the imaging unit and determines whether a characteristic structure unit exists,
    An optical device characterized in that when the determination unit determines that a characteristic structure portion exists, illumination to the characteristic structure portion is suppressed or emphasized.
  2. 移動体に搭載され、照明を行う光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光が入射され、光を出射することで照明を行う光学素子と、
    移動体周辺を撮像する撮像部と、
    前記撮像部で撮像した画像を解析し特徴的構造部が存在するかを判定する判定部と、を有し、
    前記判定部で特徴的構造部が存在すると判定すると、特徴的構造部への照明を抑制するか、又は、強調することを特徴とする光学装置。     An optical device that is mounted on a moving body and performs illumination,
    A laser light source for emitting laser light;
    An optical element that is illuminated by laser light emitted from the laser light source and emits light; and
    An imaging unit for imaging the periphery of the moving body;
    A determination unit that analyzes an image captured by the imaging unit and determines whether a characteristic structure unit exists,
    An optical device characterized in that when the determination unit determines that a characteristic structure portion exists, illumination to the characteristic structure portion is suppressed or emphasized.
  3. 前記特徴的構造部が対向車のガラス部分であり、照明の抑制を行うことを特徴とする請求項１又は請求項２に記載の光学装置。 The optical device according to claim 1, wherein the characteristic structure portion is a glass portion of an oncoming vehicle, and performs illumination suppression.
  4. 前記特徴的構造部が縁石、ガードレール、センターライン、車道外側線のうち少なくとも１つであり、照明の強調を行うことを特徴とする請求項１又は請求項２に記載の光学装置。 The optical device according to claim 1, wherein the characteristic structure portion is at least one of a curb, a guard rail, a center line, and a roadway outer line, and performs illumination enhancement.
  5. 前記特徴的構造部がナンバープレートであり、照射の強調を行うことを特徴とする請求項１又は請求項２に記載の光学装置。 The optical device according to claim 1, wherein the characteristic structure portion is a license plate and performs irradiation enhancement.
  6. 前記特徴的構造部が路上の障害物であり、照明の強調を行うことを特徴とする請求項１又は請求項２に記載の光学装置。 The optical device according to claim 1, wherein the characteristic structure portion is an obstacle on a road and performs illumination enhancement.
  7. 前記光学素子がホログラムであり、前記ホログラムから出射される光がホログラム再生像であることを特徴とする請求項１乃至請求項６のいずれか１項に記載の光学装置。 The optical device according to any one of claims 1 to 6, wherein the optical element is a hologram, and light emitted from the hologram is a hologram reproduction image.
  8. 請求項１乃至請求項７のいずれか１項に記載の光学装置が搭載された車両。 A vehicle on which the optical device according to any one of claims 1 to 7 is mounted.
  9. 移動体に搭載され、照明を行う光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光が入射され、光を出射することで照明を行う光学素子と、
    前記移動体前方の様子を撮像する撮像部と、
    前記撮像部で撮像した画像を解析し人が存在するかを判定する判定部と、を有し、
    前記判定部で人が存在すると判定すると、人の顔面への照射を抑制することを特徴とする光学装置。     An optical device that is mounted on a moving body and performs illumination,
    A laser light source for emitting laser light;
    An optical element that is illuminated by laser light emitted from the laser light source and emits light; and
    An imaging unit for imaging the state in front of the moving body;
    A determination unit that analyzes an image captured by the imaging unit and determines whether a person exists,
    An optical device characterized in that if the determination unit determines that a person is present, irradiation on the face of the person is suppressed.
  10. 移動体に搭載され、路面を照明する光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光を反射し、走査光を射出する走査部と、
    前記走査光が入射され、路面に光を出射することで照明を行う光学素子と、
    前記移動体前方を撮像する撮像部と、
    前記撮像部で撮像した画像を解析し人が存在するかを判定する判定部と、を有し、
    前記判定部で人が存在すると判定すると、人への照明を抑制することを特徴とする光学装置。     An optical device that is mounted on a moving body and illuminates a road surface,
    A laser light source for emitting laser light;
    A scanning unit that reflects laser light emitted from the laser light source and emits scanning light;
    An optical element that illuminates by entering the scanning light and emitting the light to the road surface;
    An imaging unit for imaging the front of the moving body;
    A determination unit that analyzes an image captured by the imaging unit and determines whether a person exists,
    An optical device that suppresses illumination to a person when the determination unit determines that a person is present.
  11. 移動体に搭載され、照明を行う光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光が入射され、光を出射することで照明を行う光学素子と、
    前記移動体前方を撮像する撮像部と、
    前記撮像部で撮像した画像を解析することにより人物の顔を認識する顔認識部と、を有し、
    前記顔認識部で認識した人物を強調する照明を行うことを特徴とする光学装置。     An optical device that is mounted on a moving body and performs illumination,
    A laser light source for emitting laser light;
    An optical element that is illuminated by laser light emitted from the laser light source and emits light; and
    An imaging unit for imaging the front of the moving body;
    A face recognition unit that recognizes a person's face by analyzing an image captured by the imaging unit;
    An optical device that performs illumination to emphasize a person recognized by the face recognition unit.
  12. 移動体に搭載され、照明を行う光学装置であって、
    レーザー光を射出するレーザー光源と、
    前記レーザー光源から射出されたレーザー光を反射し、走査光を射出する走査部と、
    前記走査光が入射され、路面に光を出射することで照明を行う光学素子と、
    前記移動体前方を撮像する撮像部と、
    前記撮像部で撮像した画像を解析し人物の顔を認識する顔認識部と、を有し、
    前記顔認識部で認識した人物を強調する照明を行うことを特徴とする光学装置。     An optical device that is mounted on a moving body and performs illumination,
    A laser light source for emitting laser light;
    A scanning unit that reflects laser light emitted from the laser light source and emits scanning light;
    An optical element that illuminates by entering the scanning light and emitting the light to the road surface;
    An imaging unit for imaging the front of the moving body;
    A face recognition unit that analyzes an image captured by the imaging unit and recognizes a person's face,
    An optical device that performs illumination to emphasize a person recognized by the face recognition unit.
  13. 前記光学素子がホログラムであり、前記ホログラムから出射される光がホログラム再生像であることを特徴とする請求項９乃至請求項１２のいずれか１項に記載の光学装置。 The optical device according to any one of claims 9 to 12, wherein the optical element is a hologram, and light emitted from the hologram is a hologram reproduction image.
  14. 請求項９乃至請求項１３のいずれか１項に記載の光学装置が搭載された車両。 A vehicle on which the optical device according to any one of claims 9 to 13 is mounted.
  15. 前記レーザー光源を複数有し、
    前記走査部は複数の均一化光学系を有し、
    前記複数の均一化光学系は前記複数のレーザー光源に対応して配置されていることを特徴とする請求項１に記載の光学装置。     A plurality of the laser light sources;
    The scanning unit has a plurality of uniformizing optical systems,
    The optical apparatus according to claim 1, wherein the plurality of uniformizing optical systems are arranged corresponding to the plurality of laser light sources.
  16. 前記レーザー光源を複数有し、
    前記走査部は、入射端に入射された光を反射させながら出射端側に導く導光部材と、
    前記複数のレーザー光源と前記導光部材との間に入射端レンズと、を有し、
    前記複数のレーザー光源から出射されたレーザー光が前記入射端レンズに入射し、前記入射端レンズから出射された光が前記導光部材に入射することを特徴とする請求項１に記載の光学装置。     A plurality of the laser light sources;
    The scanning unit guides the light incident on the incident end to the output end side while reflecting the light, and
    An incident end lens between the plurality of laser light sources and the light guide member;
    2. The optical apparatus according to claim 1, wherein laser light emitted from the plurality of laser light sources is incident on the incident end lens, and light emitted from the incident end lens is incident on the light guide member. .
  17. レーザー光を射出する複数のレーザー光源と、
    前記複数のレーザー光源に対応して配置される複数の均一化光学系と、からなることを特徴とする照明装置。     A plurality of laser light sources for emitting laser light;
    An illumination device comprising: a plurality of uniformizing optical systems arranged corresponding to the plurality of laser light sources.
  18. 前記複数のレーザー光源のうち、所定のレーザー光源がオンオフされるか、又は、減光されることを特徴とする請求項１７に記載の照明装置。 The illumination device according to claim 17, wherein a predetermined laser light source among the plurality of laser light sources is turned on / off or dimmed.
  19. レーザー光を射出する複数のレーザー光源と、
    入射端に入射された光を反射させながら出射端側に導く導光部材と、
    前記複数のレーザー光源と、前記導光部材との間に、入射端レンズが配され、
    前記複数のレーザー光源から出射されたレーザー光が、前記入射端レンズに入射し、前記入射端レンズから出射された光が、前記導光部材に入射することを特徴とする照明装置。     A plurality of laser light sources for emitting laser light;
    A light guide member that guides the light incident on the incident end to the exit end while reflecting the light;
    An incident end lens is disposed between the plurality of laser light sources and the light guide member,
    The illuminating device, wherein the laser light emitted from the plurality of laser light sources is incident on the incident end lens, and the light emitted from the incident end lens is incident on the light guide member.
  20. 前記複数のレーザー光源のうち、所定のレーザー光源がオンオフされるか、又は、減光されることを特徴とする請求項１９に記載の照明装置。 The illumination device according to claim 19, wherein a predetermined laser light source among the plurality of laser light sources is turned on or off or dimmed.
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