WO2017159950A1 - Système optique omnidirectionnel de capture d'images - Google Patents

Système optique omnidirectionnel de capture d'images Download PDF

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Publication number
WO2017159950A1
WO2017159950A1 PCT/KR2016/012641 KR2016012641W WO2017159950A1 WO 2017159950 A1 WO2017159950 A1 WO 2017159950A1 KR 2016012641 W KR2016012641 W KR 2016012641W WO 2017159950 A1 WO2017159950 A1 WO 2017159950A1
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WO
WIPO (PCT)
Prior art keywords
lens
light transmitting
light
barrel member
barrel
Prior art date
Application number
PCT/KR2016/012641
Other languages
English (en)
Korean (ko)
Inventor
조중길
Original Assignee
(주)헥스하이브
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160030835A external-priority patent/KR101671340B1/ko
Priority claimed from KR1020160072671A external-priority patent/KR101866875B1/ko
Priority claimed from KR1020160124517A external-priority patent/KR101801643B1/ko
Application filed by (주)헥스하이브 filed Critical (주)헥스하이브
Publication of WO2017159950A1 publication Critical patent/WO2017159950A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/30—Mounting radio sets or communication systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Definitions

  • the present invention relates to an omnidirectional imaging optical system, and more particularly, to an omnidirectional imaging optical system that reflects light incident from a surrounding 360 ° direction and guides it downward.
  • An omnidirectional imaging apparatus is an imaging device that captures all the images in a 360 ° direction around the viewer at one time.
  • the omnidirectional imaging device may be applied to fields such as live-action mapping, natural landscape photography, astronomical observation, and the like, as well as security and surveillance systems, virtual reality, driverless cars, and unmanned aerial vehicles.
  • the omnidirectional imaging optical device has an optical system for photographing an omnidirectional object.
  • Korean Laid-Open Patent Publication No. 10-2014-0145712 reflects incident light to two reflective surfaces to refractize and image an image sensor.
  • the field of view (FOV) for viewing the object is in the same direction as the image sensor surface
  • the main body including the image sensor is fixed to the ceiling to photograph the lower object.
  • the cost increases, and a constant space between the two optical parts is required, so that the electric field of the optical system becomes long.
  • the angle of view (FOV) for viewing an object is in the same direction as the image sensor surface.
  • the reflecting unit reflects light through the incident surface from the primary reflecting surface and the secondary reflecting surface to enter the lens unit.
  • the primary reflecting surface in order to widen the angle of view to be photographed, the primary reflecting surface must be made large, and accordingly, the secondary reflecting surface must be made large, so that the area where the light generated in the center cannot enter becomes large. As a result, image quality deteriorates due to insufficient information.
  • An object of the present invention is to provide an omnidirectional optical system in which the field of view (FOV) for viewing an object is in the same direction as the image sensor surface, and the light loss is small and the optical field is short.
  • FOV field of view
  • the omnidirectional imaging optical system of the present invention is an optical system capable of observing the entire 360 degrees, and has a frontal lens, an imaging lens system, and an image sensing unit from one side to the other side, and the frontal lens has a positive refractive power and refracts incident light.
  • a first surface having a primary refractive surface formed in an empty bowl shape, a second surface reflecting light incident through the refractive surface from one side of the refractive surface to the other side, and a blank space in the middle of the first surface
  • a second refractive surface that refracts the light reflected from the second surface in the direction of the imaging lens system.
  • the primary refracting surface has a convex shape toward the object side
  • the secondary refracting surface has a concave shape toward the object side
  • the focal length of the frontal lens is ff and the total omnidirectional imaging lens system is ft, it is preferable to satisfy the following equation.
  • At least the first surface may form a spherical surface.
  • the imaging lens system forms light incident from the frontal lens into the image sensing unit, and sequentially shifts the first to second light transmitting lenses, the aperture, and the third to sixth light transmitting lenses from the frontal lens to the image sensing unit. It is preferable to have a.
  • the first light transmitting lens has a negative refractive power
  • the second light transmitting lens has a positive refractive power
  • the third light transmitting lens has a positive refractive power
  • the fourth light transmitting lens has a negative refractive power
  • the third light transmitting lens, the fifth light transmitting lens has a positive refractive power
  • the sixth light transmitting lens is a planar lens.
  • the omnidirectional imaging optical system of the present invention includes a first spacer interposed between both the first light transmitting lens and the second light transmitting lens to maintain a distance between the first light transmitting lens and the second light transmitting lens, and the fourth light transmitting lens and the fifth light. Further comprising a second spacer interposed between the both in order to maintain the gap between the transmission lens, and if the first spacer is replaced with another type of first spacer having a difference in thickness, the first light transmitting lens and the If the distance between the second light transmitting lens is changed and the second spacer is replaced with another type of second spacer having a difference in thickness, the distance between the fourth light transmitting lens and the fifth light transmitting lens may be changed. Can be.
  • the present invention light is incident by using one frontal lens and one reflecting surface, so that the field of view (FOV) viewing an object is in the same direction as the image sensor surface, and at the same time, the loss of light amount is small, and the optical The battlefield is shortened.
  • FOV field of view
  • the lens assembly for omnidirectional imaging of the present invention can image an object located at a height equal to or lower than that in the peripheral 360 ° direction.
  • FIG. 1 is a block diagram of an omnidirectional optical system according to an embodiment of the present invention.
  • FIG. 2 is an aberration diagram of longitudinal spherical aberration, astigmatism, and distortion of the omnidirectional optical system of FIG.
  • FIG. 3 is aberration diagrams for longitudinal chromatic and lateral chromatic aberration of the omnidirectional optical system of FIG.
  • FIG. 4 is a cross-sectional view illustrating an example of an omnidirectional imaging system in which the omnidirectional optical system of FIG. 1 is installed.
  • 5 and 6 are a perspective view and a longitudinal sectional view of a lens assembly for omnidirectional imaging according to another embodiment of the present invention.
  • FIG. 7 and 8 are exploded perspective views illustrating the reflective refractive lens, the reflective refractive lens holder, and the cover of FIG. 6 in an exploded view, and FIG. 7 is a view from above and FIG. 8 is a view from below.
  • FIG. 9 is a perspective view illustrating a separation of the lens assembly and the main body of the imaging system for omnidirectional imaging according to another embodiment of the present invention.
  • FIG. 10 is a longitudinal cross-sectional view of the imaging system for omnidirectional imaging of FIG. 9.
  • FIG. 11 and 12 are exploded perspective views illustrating the refraction lens, the refraction lens holder, and the cover of the lens assembly of FIG. 9 in an exploded perspective view, and FIG. 11 is a view from above and FIG. 12 is a view from below.
  • FIG. 13 and 14 are exploded perspective views of the main body of FIG. 9, FIG. 13 is a view from above, and FIG. 14 is a view from below.
  • FIG. 15 is a side view illustrating an example of a black box including the omnidirectional imaging system of FIG. 9.
  • FIG. 1 is a block diagram of an omnidirectional optical system according to an embodiment of the present invention.
  • R1, R2, R3,... Denotes the aperture and the radius of curvature of the object-side / image-side surface of the lens, respectively, and D1, D2, D3,. Denotes the aperture and the distance between the lens or the aperture, and the center thickness of the lens, S1, S2, S3,... Represents the aperture and each side of the lens.
  • the optical system capable of observing the entire 360 degree includes a frontal lens 10, an imaging lens system 20, and an image sensing unit 30 in order from one side to the other side.
  • the image is imaged in the same direction as the object side.
  • the frontal lens 10 has a first surface S1 formed in a bowl shape to refract incident light with positive refractive power from an object side, and is incident through the first surface S1 from one side of the first surface S1. And a second surface S2 for reflecting the reflected light to the other side, that is, the upper side, and a fourth surface S4 for refracting the light reflected from the second surface to the upper side.
  • a third surface through which light reflected from the second surface S2 may be formed on one side of the fourth surface.
  • the light from the object side is refracted by the first surface, reflected from the second surface and reflected upward, and the third and fourth surfaces are sequentially formed on the upper side.
  • the second surface S2 may be a mirror coating, and the light incident on the first surface is reflected through the second surface S2.
  • the second surface has a convex shape toward the object side.
  • the first surface S1 and the third surface S3 may be formed continuously while having the same radius of curvature.
  • the third surface S3 is continuously formed in the hollow portion of the hollow bowl-shaped first surface S1, and both the first surface and the third surface may have a convex surface toward the object side (upper side). have.
  • the thickness of the third surface S3 may be zero. That is, it has a structure which abuts on the optical axis of a 3rd surface and a 4th surface.
  • the fourth surface S4 has a concave shape toward the object side and refracts the light with an imaging lens system.
  • the third surface S3 does not actually have a surface externally, and the outer surface of the fourth surface S4 is concave in the center portion in a shape that protrudes from the center of the bowl-shaped first surface, so that the first surface
  • the concave shape which has a center part which meets the extension line surface of the surface S4 can be taken.
  • the continuous surface forming the first surface and the third surface may be a spherical surface. Through this, the frontal lens can be manufactured more easily.
  • the third surface and the third surface may be integrally formed by bonding a separate refractive lens including the fourth surface to the third surface, having the same object side surface as the third surface.
  • the imaging lens system 20 forms light incident from the front lens 10 by an image sensing unit.
  • the imaging lens system includes the first to second light transmitting lenses L1 and L2, the aperture st, and the third to sixth light transmitting lenses L3, L4, L5, and L6 from the frontal lens to the image sensing unit. Can be.
  • the first light transmitting lens L1 has a negative refractive power, and both surfaces S5 and S6 have a concave shape.
  • the second light transmitting lens L2 has a positive refractive power, and both surfaces S7 and S8 have a convex shape toward the object side.
  • the diaphragm St is disposed on the image side of the second light transmitting lens L2.
  • the third light transmitting lens has a positive refractive power, and both surfaces S10 and S11 have a convex shape.
  • the fourth light transmitting lens L4 is bonded to the third light transmitting lens L3. That is, the object side surface S11 of the fourth light transmitting lens is the same as the image side surface S11 of the third light transmitting lens. In this case, the fourth light transmitting lens L4 has a negative refractive power, and the image side surface S12 has a convex shape toward the object side.
  • the fifth light transmitting lens L5 has a positive refractive power, the object side surface S13 is convex toward the object side, and the image side surface S14 is convex in the frontal lens direction.
  • the sixth light transmitting lens L6 is a planar lens.
  • the imaging optical system may include six lenses.
  • the imaging optical system may include three, four, five, and seven lenses.
  • the image sensing unit 30 senses the light flowing from the imaging lens system.
  • the focal length of the front lens 10 is ff and the focal length of the total omnidirectional imaging lens system is ft, it is preferable to satisfy the following equation.
  • the front lens 10 may be made of a plastic material, and the first surface S1 and the third surface S3 may be spherical surfaces. This makes it easy to manufacture the frontal lens.
  • Table 1 shows the specifications of the omnidirectional optical system according to the preferred embodiment of the present invention
  • FIG. 2 is an aberration diagram regarding longitudinal spherical aberration, astigmatism and distortion of the omnidirectional optical system of the embodiment
  • FIG. Aberration diagrams for longitudinal chromatic and lateral chromatic aberration.
  • the object side and the image side are designed in the same direction, and the front lens 10 has a first refractive surface (first surface S1), a reflective surface (second surface S2), and a second refractive surface. (4th surface S4).
  • first surface S1 first refractive surface
  • second surface S2 reflective surface
  • second refractive surface. (4th surface S4) second refractive surface
  • fourth surface S4 fourth refractive surface
  • the total length of the optical system can be drastically reduced by passing the aspherical reflective surface after passing through one refractive surface.
  • FIG. 4 shows an omnidirectional imaging system to which the omnidirectional imaging system of the present invention is applied.
  • the omnidirectional imaging system 100 includes a reflective refractive lens holder 40, a frontal lens 10 mounted inside the reflective refractive lens holder, and first to sixth light transmitting lenses L1, L2, and L3. , L4, L5, and L6, and the barrel assembly 90 is provided.
  • the omnidirectional imaging system refers to an imaging system that captures an image of a 360 ° direction around the frontal lens 10 at one time.
  • the reflective refractive lens holder 40 is a member in the form of a bowl-side container in which an upper surface is opened, and the first refractive index lens holder 40 is enclosed and accommodated therein.
  • the reflective refractive lens holder 40 is convex and transparent to the lower side so as to be spaced apart from the first surface S1 at uniform intervals, and the light transmitting portion 41 to be aligned with the fourth surface S4 of the frontal lens.
  • a connection 47 extending downward in the shape of a pipe. Light emitted from the fourth surface S4 travels downward through the through hole of the connecting portion 47.
  • a female screw surface is formed on the inner circumferential surface of the connecting portion 47.
  • the cover 50 is a disc-shaped member, which is fastened to the reflective refractive lens holder 40 to close the open upper surface of the reflective refractive lens holder 40, thereby preventing the frontal lens from being accommodated in the reflective refractive lens holder 40.
  • Covering the second surface (S2), the front lens is fixed so as not to move in the reflection refractive lens holder (40).
  • a flange support portion 42 extending radially to support the flange 17 of the frontal lens is formed on the outer circumferential portion of the reflective refractive lens holder 40.
  • a portion of the flange supporter 42 is not expanded and is recessed inwardly relative to the flange supporter 42 to form a groove 43, and a slot extending along the circumferential direction from the groove 43. Is formed.
  • the slot is stepped with the flange support 42.
  • the diameter of the cover 50 is slightly larger than the diameter of the frontal lens or the diameter of the reflective refractive lens holder 40, and the cover 50 is lowered from the outer periphery so as to surround the flange 17 and the flange support 42.
  • a skirt (51) protruding from and extending, and a locking protrusion (53) protruding inwardly from an inner peripheral surface of the lower end of the skirt (51).
  • the locking protrusion 53 is provided at a position aligned with the groove portion 43.
  • a portion of the flange 17 is in a radial direction than the periphery so that the flange 17 does not obstruct the locking protrusion 53 when the cover 50 is fastened to the reflective refractive lens holder 40.
  • a less extended flange cut face 18 is formed.
  • Light emitted downward through the fourth surface S4 sequentially passes through the first to sixth light transmitting lenses L1, L2, L3, L4, L5, and L6.
  • the first to sixth light transmitting lenses L1, L2, L3, L4, L5, and L6 are sequentially arranged to be aligned in a line below the front lens 10.
  • the barrel assembly 90 supports the first to sixth light transmitting lenses L1, L2, L3, L4, L5 and L6, and the fourth surface S4 and the first to sixth light transmitting lenses.
  • a main body of the omnidirectional imaging system including an image sensor 80 constituting an image sensing unit 30 disposed below to be aligned in line with (L1, L2, L3, L4, L5, L6), and a refraction lens holder ( 40 is coupled to the connection 47.
  • the barrel assembly 90 has a barrel 60 and a base 55.
  • the base 55 is fixedly coupled to a main body (not shown) of the omnidirectional imaging system in which the image sensing unit 80 is mounted.
  • the lower end of the base 55 is provided with a screw fastening portion 59 to be fastened by a fastening screw (not shown) to the omnidirectional imaging system body.
  • the base 55 is aligned with the plurality of image sensing units 30 and the image sensing unit 30.
  • a filter pass protrusion 56 protrudes inwardly on an inner circumferential surface of the base 55, and a band pass filter that corrects light received by the image sensor 80 on the filter support protrusion 56. 36 is fixedly supported.
  • the upper part of the base 55 is a pipe-shaped part, and a female screw surface is formed on an inner circumferential surface thereof.
  • the barrel 60 is interposed between the connecting portion 47 and the base 55 and includes a first barrel member 61 and a second barrel member 70.
  • the first to second light transmitting lenses L1 and L2 are supported on the inner circumferential surface of the first barrel member 61.
  • a male screw surface is formed on the upper outer peripheral surface of the first barrel member 61, and a female screw surface is formed on the lower inner peripheral surface.
  • the third, fourth, and fifth light transmitting lenses 24, 26, 28 are supported on the inner circumferential surface of the second barrel member 70.
  • the third and fourth light transmitting lenses 24 and 26 are lenses that are closely bonded to each other.
  • the male threaded surface is formed in the upper outer peripheral surface and the lower outer peripheral surface of the 2nd barrel member 70, respectively.
  • the male screw surface of the upper portion of the first barrel member 61 is screwed with the female screw surface of the connecting portion 47, and the female screw surface of the lower portion of the first barrel member 61 is the second barrel member 70. It is screwed with the male threaded surface on the top.
  • the male screw surface of the lower portion of the second barrel member 70 is screwed with the female screw surface of the upper portion of the base 55.
  • the connecting portion 47 and the first barrel member 61, the first barrel member 61, the second barrel member 70, and the second barrel member 70 of the reflective refractive lens holder 40 The base 55 is screwed by the female screw surface and the male screw surface. Therefore, one of the pair of members screwed together may be rotated with respect to the other member to adjust the distance, ie, the vertical gap between the pair of members.
  • the distance between the pair of barrel members 61 and 70 can be easily adjusted, so that the first barrel member 61 is adjusted. Easy distance between the first to second light transmitting lenses L1 and L2 supported by the second to third light transmitting lenses L3, L4, L5 and L6 supported by the second barrel member 70. Can be adjusted.
  • an expanded outer diameter portion 71 having a large outer diameter is formed between the upper portion and the lower portion of the second barrel member 70.
  • the operator may hold the expansion outer diameter portion 71 and rotate the second barrel member 70 with respect to the first barrel member 70 or with respect to the base 55.
  • a barrel stopper 46 protruding inwardly from the inner circumferential surface is provided at the boundary portion between the light transmitting portion 41 and the connecting portion 47 of the reflective refractive lens holder 40.
  • the barrel stopper 46 blocks an upper end of the first barrel member 61 so that the front lens 10 and the first barrel member 61 are closed. Prevent collisions and the resulting damage.
  • the upper end of the first barrel member 61 is provided with a lens stopper 65 protruding inward from the inner circumferential surface. The lens stopper 65 blocks the first light transmitting lens L1 supported on the inner circumferential surface of the first barrel member 61 from being separated through the upper end of the first barrel member 61.
  • a ring-shaped first spacer 31 is interposed between the first light transmitting lens L1 and the second light transmitting lens L2 supported on the inner circumferential surface of the first barrel member 61.
  • a ring-shaped second spacer 32 is interposed between the fourth light transmitting lens L4 and the fifth light transmitting lens L5 supported on the inner circumferential surface of the two barrel members 70.
  • the first spacer 31 maintains a gap between the first light transmitting lens L1 and the second light transmitting lens L2, and the second spacer 32 is formed of the fourth light transmitting lens L4 and the first light transmitting lens L4. 5 Maintain the gap between the light transmitting lens L5. If the first spacer 31 shown in FIG.
  • the first spacer having a thickness different from the first spacer 31 in the vertical direction is different from that of the first light transmitting lens L1.
  • the second spacer 32 shown in FIG. 4 may be replaced with another type of second spacer.
  • the second spacer having a thickness different from that of the second spacer 32 in the vertical direction may be replaced by the fourth light transmitting lens L4.
  • the fifth light transmitting lens L5 the distance between the fourth light transmitting lens L4 and the fifth light transmitting lens L5 is changed.
  • a ring-shaped retainer 34 is fixed to the inner circumferential surface of the lower end portion of the second barrel member 70.
  • a male screw surface is formed on the outer circumferential surface of the retainer 34, and a female screw surface corresponding to the male screw surface is formed on the inner circumferential surface of the lower end of the second barrel member 70, so that the male screw surface of the retainer 34 is formed. It is screwed to the female threaded surface of the second barrel member 70.
  • the retainer 34 blocks the third to fifth light transmitting lenses L3, L4, L5 and the second spacer 32 supported on the inner circumferential surface of the second barrel member 70, so that they retain the second barrel member 70. Do not let go through the bottom.
  • the upper end of the second barrel member 70 may support the second light transmitting lens 22 supported on the inner circumferential surface of the first barrel member 61. Support closely.
  • An upper end of the second barrel member 70 may include first and second light transmitting lenses 20 and 22 and a first spacer 31 supported on an inner circumferential surface of the first barrel member 61. It acts as a retainer that prevents it from falling down at.
  • An aperture 72 is formed on the inner circumferential surface of the second barrel member 70 at a position higher than the third to fifth light transmitting lenses L3, L4, and L5.
  • the diaphragm 72 determines the amount of light formed in the image sensor 80, and protrudes in a ring shape from the inner circumferential surface of the second barrel member 70.
  • the omnidirectional imaging lens assembly of the present invention has a non-separable unitary barrel instead of the barrel 60 that is separable into the first barrel member 61 and the second barrel member 70, the plurality of light transmitting lenses
  • a light transmitting lens arrangement having a larger diameter toward the upper side or a larger diameter toward the lower side.
  • a light transmitting lens having a large difference in thickness between the center portion and the outer peripheral portion should be provided. In this case, errors in lens shaping are frequent and the yield is reduced, and the design of the barrel may be very difficult.
  • the light transmitting lenses L1 and L2 supported by the first barrel member 61 around the aperture 72 and the light transmitting lenses L3, L4, and L5 supported by the second barrel member 70 are thus included.
  • Each module may be manufactured and inspected separately, and the module of the first barrel member 61 and the module of the second barrel member 70 may be assembled to lower the defect rate and maximize productivity.
  • the lens assembly 10 for omnidirectional imaging described above can image an object located at a height that is equal to or lower than that in the peripheral 360 ° direction.
  • the main body including the image sensor 80 may be mounted on a helmet, a wall top, and a power pole. It can be installed on the top or the roof of the vehicle, and the surrounding lens can be imaged by fixedly mounting the omnidirectional imaging lens assembly on the main body. In this way, the installation method can be installed in various places to monitor the surroundings and photograph objects.
  • the lens assembly for omnidirectional imaging is coupled to a helmet of a motorcycle rider, the surroundings of the motorcycle can be photographed from all directions. Accordingly, the lens assembly for omnidirectional imaging can function as a kind of black box.
  • the lens assembly for omnidirectional imaging can function as a kind of black box.
  • the lens assembly for omnidirectional imaging includes a reflective refractive lens holder 40 and a cover 50, a reflective refractive lens holder 40, a first barrel member 61, a first barrel member 61, and a second barrel member 70. ),
  • the fastening screw and the adhesive are not applied to the coupling between the second barrel member 70 and the base 55.
  • the fastening screw and the adhesive are not applied to supporting the plurality of light transmitting lenses L1, L2, L3, L4, L5, L6 on the inner peripheral surfaces of the first and second barrel members 61, 70.
  • the reflective refractive lens holder 40 and the first barrel member 61, the first barrel member 61 and the second barrel member 70, and the second barrel member 70 and the base 55 are female. Engaged by screwing the screw surface and the male screw surface, the spacing between adjacent lenses is adjusted by spacers 30 and 32. Therefore, the type of lens can be changed and installed, and the distance between lenses can be adjusted appropriately according to the changed lens.
  • the lens assembly 110 for omnidirectional imaging is a main body of the omnidirectional imaging system (omnidirectional imaging system) equipped with an image sensor (180) Coupled to the housing), and includes a housing, a reflection refracting lens 111 and first to fifth light transmitting lenses 20, 22, 24, 26, and 28 mounted inside the housing.
  • the housing includes a reflective refractive lens holder 140, a cover 150, and a barrel assembly 190.
  • the omnidirectional imaging system refers to an imaging system that captures an image of a 360 ° direction around the lens assembly 110 at one time.
  • the reflective refractive lens 111 includes a light refracting surface 115 convex downward, a light reflecting surface 112, and a light exit surface 116 at the center of the convex light refracting surface 115. a flange 117 extending in a radial direction. External light is incident and refracted by the light refractive surface 115.
  • the light reflection surface 112 is a mirror coated surface, and the light incident on the light refractive surface 115 is reflected through the light reflection surface 112.
  • the light reflection surface 112 is a surface provided on the upper surface of the reflective refractive lens 111 and recessed downward. The light reflected from the light reflection surface 112 is emitted downward to the light exit surface 116.
  • the reflective refraction lens 111 refracts incident light, and the side of the light refraction surface 115 having a bowl side shape convex downward and the light incident on the light refraction surface 115 An upper surface of the light reflection surface 112 is reflected, and a lower surface of the light reflection surface 112 includes a light emission surface 116 through which the light reflected from the light reflection surface 112 exits.
  • the reflective refractive lens holder 140 is a bowl-shaped container having an open top surface, and the side and bottom surfaces of the reflective refractive lens 111 are enclosed therein.
  • the reflective refractive lens holder 140 is convex and transparent to the lower side so as to be spaced apart from the optical refractive surface 115 at a uniform interval when the reflective refractive lens 111 is accommodated, and the light of the reflective refractive lens 111 is reflected. It is provided with a connecting portion 147 extending from the light transmitting portion 141 so as to be aligned with the exit surface 116 and extending downward in a pipe shape. The light emitted from the light exit surface 116 travels downward through the through hole of the connection part 147.
  • a female screw surface is formed on the inner circumferential surface of the connecting portion 147.
  • the light transmitting part 141 has an inner surface spaced apart from the light refractive surface 115 at uniform intervals, and is formed in a bowl side shape having the same thickness and is made of a transparent material.
  • the cover 150 is a disc-shaped member, which is fastened to the reflective refractive lens holder 140 to close the open upper surface of the reflective refractive lens holder 140, and thus the reflective refractive lens accommodated inside the reflective refractive lens holder 140. Covering the upper surface of the (111), and fixing the reflective refractive lens 111 in the reflective refractive lens holder 140 so as not to move.
  • a flange support part 142 extended in a radial direction is formed on an outer circumferential portion of the reflective refractive lens holder 140 to support the flange 117 of the reflective refractive lens 111.
  • a portion of the flange supporter 142 is not expanded, and is recessed inwardly relative to the flange supporter 142 to form a groove part 143, and a slot extending along the circumferential direction from the groove part 143. 144 is formed.
  • the slot 144 is stepped with the flange support 142.
  • the diameter of the cover 150 is slightly larger than the diameter of the reflective refractive lens 111 or the diameter of the reflective refractive lens holder 140, the cover 150 to surround the flange 117 and the flange support 142
  • a skirt 151 protruding downward from the outer periphery and a locking protrusion 153 protruding inward from the lower inner circumferential surface of the skirt 151 are provided.
  • the locking protrusion 153 is provided at a position aligned with the groove portion 143.
  • a portion of the flange 117 is in a radial direction rather than a circumference so that the flange 117 intercepts the locking protrusion 153 and does not interfere when the cover 150 is fastened to the reflective refractive lens holder 140. Less extended flange cut face 118 is formed.
  • the reflective refractive lens 111 is placed inside the reflective refractive lens holder 140, and the locking protrusion 153, the flange cut surface 118, and the groove 143 are aligned with the cover 150.
  • the locking protrusion 153 slides along the slot 144 to the flange support 142. Do not get caught. Accordingly, unless the cover 150 is intentionally rotated in the clockwise direction with respect to the reflective refractive lens holder 140, the cover 150 is fastened and fixed while closing the upper surface of the reflective refractive lens holder 140. As shown in FIG.
  • the light emitted downward through the light exit surface 116 transmits the first to fifth light transmitting lenses 120, 122, 124, 126, and 128 sequentially.
  • the first to fifth light transmitting lenses 120, 122, 124, 126, and 128 are sequentially arranged to be aligned in a line under the reflective refractive lens 111.
  • the barrel assembly 190 supports the first to fifth light transmitting lenses 120, 122, 124, 126, and 128, and the light exit surface 116 and the first to fifth light transmitting lenses 120. , 122, 124, 126, and 128 are coupled to a main body of the omnidirectional imaging system including an image sensor 180 disposed below to be aligned in line with the connection unit 147 of the refraction lens holder 140.
  • the barrel assembly 190 has a barrel 160 and a base 155.
  • the base 155 is fixedly coupled to a main body (not shown) of the omnidirectional imaging system in which the image sensor 180 is mounted.
  • the lower end of the base 155 is provided with a screw fastening portion 159 to be fastened by a fastening screw (not shown) to the omnidirectional imaging system body.
  • a fastening screw (not shown) to the omnidirectional imaging system body.
  • a filter pass protrusion 156 protrudes inwardly on an inner circumferential surface of the base 155, and a band pass filter that corrects light received by the image sensor 180 on the filter support protrusion 156.
  • the upper part of the base 155 is a pipe-shaped part, and a female screw surface is formed on an inner circumferential surface thereof.
  • the barrel 160 is interposed between the connecting portion 147 and the base 155 and includes a first barrel member 161 and a second barrel member 170.
  • the first and second light transmitting lenses 120 and 122 are supported on the inner circumferential surface of the first barrel member 161.
  • a male screw surface is formed on an upper outer circumferential surface of the first barrel member 161, and a female screw surface is formed on a lower inner circumferential surface.
  • the third, fourth, and fifth light transmitting lenses 124, 126, and 128 are supported on the inner circumferential surface of the second barrel member 170.
  • the third and fourth light transmitting lenses 124 and 126 are lenses that are in close contact with each other.
  • Male threaded surfaces are formed on the upper outer peripheral surface and the lower outer peripheral surface of the second barrel member 170, respectively.
  • the male screw surface of the upper portion of the first barrel member 161 is screwed with the female screw surface of the connecting portion 147, and the female screw surface of the lower portion of the first barrel member 161 is the second barrel member 170. It is screwed with the male threaded surface on the top.
  • the male screw surface of the lower portion of the second barrel member 170 is screwed with the female screw surface of the upper portion of the base 155.
  • the connecting portion 147 of the reflective refractive lens holder 140 and the first barrel member 161, the first barrel member 161 and the second barrel member 170, and the second barrel member 170 The base 155 is screwed by the female screw surface and the male screw surface. Therefore, one of the pair of members screwed together may be rotated with respect to the other member to adjust the distance, ie, the vertical gap between the pair of members.
  • the distance between the pair of barrel members 161, 170 can be easily adjusted, so that the first barrel member 161 can be adjusted.
  • an enlarged outer diameter portion 171 having a large outer diameter is formed between the upper portion and the lower portion of the second barrel member 170.
  • the operator may hold the extension outer diameter portion 171 and rotate the second barrel member 170 with respect to the first barrel member 170 or with respect to the base 155.
  • a barrel stopper 146 protruding inward from the inner circumferential surface is provided at a boundary portion between the light transmitting portion 141 and the connecting portion 147 of the reflective refractive lens holder 140.
  • the barrel stopper 146 blocks the upper end of the first barrel member 161 so that the reflective refractive lens 111 and the first barrel member 161 are provided.
  • the upper end of the first barrel member 161 is provided with a lens stopper 165 protruding inward from the inner circumferential surface.
  • the lens stopper 165 prevents the first light transmitting lens 120 supported on the inner circumferential surface of the first barrel member 161 from being separated through the upper end of the first barrel member 161.
  • a ring-shaped first spacer 130 is interposed between the first light transmitting lens 120 and the second light transmitting lens 122 supported on the inner circumferential surface of the first barrel member 161.
  • a ring-shaped second spacer 132 is interposed between the fourth light transmitting lens 126 and the fifth light transmitting lens 128 supported on the inner circumferential surface of the second barrel member 170.
  • the first spacer 130 maintains a distance between the first light transmitting lens 120 and the second light transmitting lens 122, and the second spacer 132 is formed of the fourth light transmitting lens 126 and the first light transmitting lens 126. 5 Keep the gap between the light transmitting lens 128.
  • the first spacer having a thickness different from that of the first spacer 130 in the up-down direction is different from that of the first light transmitting lens 120.
  • the distance between the first light transmitting lens 120 and the second light transmitting lens 122 is changed.
  • the second spacer 132 illustrated in FIG. 6 may be replaced with another type of second spacer.
  • the second spacer having a thickness different from the second spacer 132 in the vertical direction may be replaced by the fourth light transmitting lens 126.
  • the fifth light transmitting lens 128, the distance between the fourth light transmitting lens 126 and the fifth light transmitting lens 128 is changed.
  • a ring-shaped retainer 134 is fixed to the inner circumferential surface of the lower end portion of the second barrel member 170.
  • a male screw surface is formed on the outer circumferential surface of the retainer 134, and a female screw surface corresponding to the male screw surface is formed on the inner circumferential surface of the lower end of the second barrel member 170, so that the male screw surface of the retainer 134 is formed. It is screwed to the female screw surface of the second barrel member 170.
  • the retainer 134 blocks the third to fifth light transmitting lenses 124, 126, and 128 and the second spacer 132 supported on the inner circumferential surface of the second barrel member 170, so that the second barrel member 170 Do not let go through the bottom.
  • Second barrel member 170 When the second barrel member 170 is coupled to the first barrel member 161, an upper end of the second barrel member 170 may support the second light transmitting lens 122 supported on the inner circumferential surface of the first barrel member 161. Support closely. First and second light transmitting lenses 20 and 22 and the first spacer 130 supported on the inner circumferential surface of the first barrel member 161 may have an upper end of the second barrel member 170. It acts as a retainer that prevents it from falling down at.
  • An aperture 172 is formed on an inner circumferential surface of the second barrel member 170 at a position higher than that of the third to fifth light transmitting lenses 124, 126, and 128.
  • the aperture 172 determines an amount of light formed in the image sensor 180, and protrudes in a ring shape from an inner circumferential surface of the second barrel member 170.
  • the omnidirectional imaging lens assembly of the present invention includes a non-removable unitary barrel instead of the barrel 160 that is separable into the first barrel member 161 and the second barrel member 170, the plurality of light transmitting lenses may be provided.
  • a light transmitting lens arrangement having a larger diameter toward the upper side or a larger diameter toward the lower side.
  • a light transmitting lens having a large difference in thickness between the center portion and the outer peripheral portion should be provided. In this case, errors in lens shaping are frequent and the yield is reduced, and the design of the barrel may be very difficult.
  • the light transmitting lenses 120 and 122 supported by the first barrel member 161 and the light transmitting lenses 124, 126, and 128 supported by the second barrel member 170 are formed around the aperture 172.
  • Each module may be manufactured and inspected separately, and the modules of the first barrel member 161 and the modules of the second barrel member 170 may be assembled to lower the defect rate and maximize productivity.
  • the above-mentioned omnidirectional lens assembly 110 may image an object located at a height that is equal to or lower than that in the peripheral 360 ° direction.
  • the omnidirectional imaging lens assembly 110 since the omnidirectional imaging lens assembly 110 is disposed at a position higher than a main body of the omnidirectional imaging system including the image sensor 180, the main body including the image sensor 180 may be mounted on a helmet, a wall top, and a power pole. It may be installed at an upper end or a vehicle roof, and the surrounding lens may be captured by fixing the omnidirectional imaging lens assembly 110 on the main body. In this way, the installation method can be installed in various places to monitor the surroundings and photograph objects.
  • the lens assembly for omnidirectional imaging is coupled to a helmet of a motorcycle rider, the surroundings of the motorcycle can be photographed from all directions. Accordingly, the lens assembly for omnidirectional imaging can function as a kind of black box.
  • the lens assembly for omnidirectional imaging can function as a kind of black box.
  • the omnidirectional imaging lens assembly 110 includes a reflective refractive lens holder 140 and a cover 150, a reflective refractive lens holder 140, a first barrel member 161, a first barrel member 161, and a second barrel.
  • the fastening screw and the adhesive are not applied to the combination of the member 170, the second barrel member 170, and the base 155.
  • the fastening screw and the adhesive are not applied to supporting the plurality of light transmitting lenses 120, 122, 124, 126, and 128 on the inner circumferential surfaces of the first and second barrel members 161 and 170.
  • the reflective refractive lens holder 140 and the first barrel member 161, the first barrel member 161 and the second barrel member 170, and the second barrel member 170 and the base 155 are female. Engaged by screwing the screw face and the male screw face, the spacing between adjacent lenses is adjusted by spacers 130 and 132. Therefore, the type of lens can be changed and installed, and the distance between lenses can be adjusted appropriately according to the changed lens.
  • FIG. 9 is a perspective view illustrating the lens assembly and the main body of the imaging system for omnidirectional imaging according to another embodiment of the present invention
  • FIG. 10 is a longitudinal cross-sectional view of the imaging system for omnidirectional imaging of FIG. 9.
  • the omnidirectional imaging system 210 according to an exemplary embodiment of the present invention includes a main body 280 disposed below and a main body 280 disposed above the main body 280.
  • the lens assembly 211 is fixed to the support.
  • the lens assembly 211 may include a lens assembly housing, a reflective refractive lens 212 and first to fifth light transmitting lenses 220 mounted inside the lens assembly housing. 222, 224, 226, 228.
  • the lens assembly housing includes a reflective refractive lens holder 240, a lens assembly lens assembly cover 250, and a barrel assembly 274.
  • the omnidirectional imaging system 210 is an imaging system that captures an image of a 360 ° direction around the lens assembly 211 at a time.
  • the reflective refractive lens 212 includes a light refracting surface 215 that is convex downward, a light reflecting surface 213, and a light exit surface 216 at the center of the convex light refractive surface 215. a flange 217 extending in a radial direction. External light is incident on the light refractive surface 215 and is refracted.
  • the light reflection surface 213 is a mirror coated surface, and the light incident on the light refractive surface 215 is reflected through the light reflection surface 213.
  • the light reflection surface 213 is a surface provided on the upper surface of the reflective refractive lens 212 and recessed downward. The light reflected from the light reflection surface 213 is emitted downward to the light exit surface 216.
  • the reflective refractive lens 212 refracts incident light, and the side of the light refractive surface 215 having a bowl side shape convex downward and the light incident on the optical refractive surface 215 An upper surface of the light reflection surface 213 is reflected, and a lower surface of the light reflection surface 213 includes a light emission surface 216 at which light reflected from the light reflection surface 213 is emitted downward.
  • the reflective refractive lens holder 240 is a bowl-shaped container having an open top surface, and the side and bottom surfaces of the reflective refractive lens 212 are enclosed and accommodated therein.
  • the reflective refractive lens holder 240 is convex and transparent to the lower side so as to be spaced apart from the optical refractive surface 215 at a uniform interval when the reflective refractive lens 212 is received, and the light of the reflective refractive lens 212 It is provided with a connecting portion 247 extending from the light transmitting portion 241 to be aligned with the exit surface 216 extending downward in the shape of a pipe. The light emitted from the light exit surface 216 travels downward through the through hole of the connection part 247.
  • a female screw surface is formed on the inner circumferential surface of the connecting portion 247.
  • the light transmitting part 241 has an inner surface spaced apart from the light refractive surface 215 at uniform intervals and is formed in a bowl side shape having the same thickness and is made of a transparent material.
  • the lens assembly cover 250 is a disc-shaped member, which is fastened to the reflective refractive lens holder 240 to close the open upper surface of the reflective refractive lens holder 240, and the reflection accommodated in the reflective refractive lens holder 240.
  • the upper surface of the refractive lens 212 is covered, and the reflective refractive lens 212 is fixed in the reflective refractive lens holder 240 without moving.
  • a flange support part 242 extended in a radial direction is formed at an outer circumferential portion of the reflective refractive lens holder 240 to support the flange 217 of the reflective refractive lens 212.
  • a portion of the flange supporter 242 is not expanded, and is recessed inwardly relative to the flange supporter 242 to form a groove portion 243, and a slot extending along the circumferential direction in the groove portion 243. 244 is formed.
  • the slot 244 is stepped with the flange support 242.
  • the diameter of the lens assembly cover 250 is slightly larger than the diameter of the reflective refractive lens 212 or the diameter of the reflective refractive lens holder 240, the lens assembly cover 250 is the flange 217 and the flange support 242
  • a skirt 251 protruding downward from the outer periphery and a locking protrusion 253 protruding inward from the lower inner circumferential surface of the skirt 251 may be provided to surround the skirt.
  • the locking protrusion 253 is provided at a position aligned with the groove portion 243.
  • a portion of the flange 217 is radiated more than the periphery so that when the lens assembly cover 250 is fastened to the reflective refractive lens holder 240, the flange 217 blocks the locking protrusion 253 and does not interfere.
  • a flange cut face 218 which is less extended in the direction is formed.
  • the reflective refractive lens 212 is placed inside the reflective refractive lens holder 240, and the locking protrusion 253, the flange cut surface 218, and the groove 243 are aligned with the reflective lens assembly cover 250.
  • the locking protrusion 253 slides along the slot 244 to support the flange support. It is not caught by 242. Accordingly, unless the lens assembly cover 250 is intentionally rotated in the clockwise direction with respect to the reflective refractive lens holder 240, the lens assembly cover 250 is fastened with the top surface of the reflective refractive lens holder 240 closed. It is fixed. As shown in FIG.
  • the lens assembly cover 250 when the lens assembly cover 250 is fastened to the reflective refractive lens holder 240, the outer circumferential portion of the reflective refractive lens 212, that is, the flange 217 is reflected off the outer circumferential portion of the lens assembly cover 250. Since it is in close contact with the flange support portion 242 of the refractive lens holder 240, it is fixed in the internal space of the reflective refractive lens holder 240 without vibration or shaking.
  • the light emitted downward through the light exit surface 216 sequentially transmits the first to fifth light transmitting lenses 220, 222, 224, 226, and 228.
  • the first to fifth light transmitting lenses 220, 222, 224, 226, and 228 are sequentially arranged to be aligned in a line under the reflective refractive lens 212.
  • the barrel assembly 274 supports the first to fifth light transmitting lenses 220, 222, 224, 226, and 228, and the light exit surface 216 and the first to fifth light transmitting lenses 220. , 222, 224, 226, 228 are coupled to the body of the omnidirectional imaging system including an image sensor 286 disposed below in line with the connection, and the connection portion 247 of the refraction lens holder 240. .
  • the barrel assembly 274 includes a barrel 260 and a body coupling bracket 255.
  • the body coupling bracket 255 is fixedly coupled to an image sensor circuit board 287 on which the image sensor 286 is mounted and disposed inside the body 280.
  • a bolt fastening portion 259 is provided at a lower end of the main body coupling bracket 255 so as to be fastened to the image sensor circuit board 287 by bolts 285.
  • the main body coupling bracket 255 and the image sensor circuit board 287 are fastened by bolts 285, the plurality of light transmitting lenses 220, 222, 224, 226, and 228 line up with the image sensor 286. Sorted by.
  • a filter pass protrusion 256 protrudes inwardly on an inner circumferential surface of the body coupling bracket 255, and a band pass filter that corrects light received by the image sensor 286 on the filter support protrusion 256.
  • filter 236 is fixedly supported.
  • the upper portion of the main body coupling bracket 255 is a pipe-shaped portion and a female screw surface is formed on the inner circumferential surface thereof.
  • the barrel 260 is interposed between the connecting portion 247 and the main body coupling bracket 255 and includes a first barrel member 261 and a second barrel member 270.
  • First and second light transmitting lenses 220 and 222 are supported on an inner circumferential surface of the first barrel member 261.
  • a male screw surface is formed on the upper outer circumferential surface of the first barrel member 261, and a female screw surface is formed on the lower inner circumferential surface.
  • the third, fourth, and fifth light transmitting lenses 224, 226, and 228 are supported on the inner circumferential surface of the second barrel member 270.
  • the third and fourth light transmitting lenses 224 and 226 are lenses closely bonded to each other.
  • Male threaded surfaces are formed on the upper outer circumferential surface and the lower outer circumferential surface of the second barrel member 270, respectively.
  • the male screw surface of the upper portion of the first barrel member 261 is screwed with the female screw surface of the connecting portion 247, and the female screw surface of the lower portion of the first barrel member 261 is the second barrel member 270. It is screwed with the male threaded surface on the top.
  • the male screw surface of the lower portion of the second barrel member 270 is screwed to the female screw surface of the upper portion of the body coupling bracket 255.
  • the connecting portion 247 of the reflective refractive lens holder 240 and the first barrel member 261, the first barrel member 261 and the second barrel member 270, and the second barrel member 270 are provided.
  • the main body coupling bracket 255 is screwed by the female screw surface and the male screw surface. Therefore, one of the pair of members screwed together may be rotated with respect to the other member to adjust the distance, ie, the vertical gap between the pair of members.
  • the distance between the pair of barrel members 261 and 270 can be easily adjusted, so that the first barrel member 261 is provided. Easily adjust the distance between the first and second light transmitting lenses 220 and 222 supported by the second to third light transmitting lenses 224, 226 and 228 supported by the second barrel member 270. Can be.
  • an enlarged outer diameter portion 271 having a large outer diameter is formed between the upper portion and the lower portion of the second barrel member 270.
  • the operator may hold the extension outer diameter portion 271 and rotate the second barrel member 270 with respect to the first barrel member 270 or with respect to the body coupling bracket 255.
  • a barrel stopper 246 protruding inward from the inner circumferential surface is provided at a boundary portion between the light transmitting portion 241 and the connection portion 247 of the reflective refractive lens holder 240.
  • the barrel stopper 246 blocks an upper end of the first barrel member 261 so that the reflective refractive lens 212 and the first barrel member 261 are provided. To prevent collisions and the resulting damage.
  • the upper end of the first barrel member 261 is provided with a lens stopper 265 protruding inward from the inner circumferential surface. The lens stopper 265 prevents the first light transmitting lens 220 supported on the inner circumferential surface of the first barrel member 261 from being separated through the upper end of the first barrel member 261.
  • a ring-shaped first spacer 230 is interposed between the first light transmitting lens 220 and the second light transmitting lens 222 supported on the inner circumferential surface of the first barrel member 261.
  • a ring-shaped second spacer 232 is interposed between the fourth light transmitting lens 226 and the fifth light transmitting lens 228 supported on the inner circumferential surface of the second barrel member 270.
  • the first spacer 230 maintains a gap between the first light transmitting lens 220 and the second light transmitting lens 222, and the second spacer 232 is formed of the fourth light transmitting lens 226 and the second light transmitting lens 226. 5 Keep the gap between the light transmitting lens 228. If the first spacer 230 shown in FIG.
  • the first spacer having a thickness different from the first spacer 230 in the vertical direction is different from that of the first light transmitting lens 220.
  • the second spacer 232 illustrated in FIG. 10 may be replaced with another type of second spacer, in other words, the second spacer having a thickness different from the second spacer 232 in the up-down direction, and the fourth light transmitting lens 226.
  • the fifth light transmitting lens 228, the distance between the fourth light transmitting lens 226 and the fifth light transmitting lens 228 is changed.
  • a ring-shaped retainer 234 is fixed to the inner circumferential surface of the lower end portion of the second barrel member 270.
  • a male screw surface is formed on the outer circumferential surface of the retainer 234, and a female screw surface corresponding to the male screw surface is formed on the inner circumferential surface of the lower end of the second barrel member 270, so that the male screw surface of the retainer 234 is formed. It is screwed to the female screw surface of the second barrel member 270.
  • the retainer 234 blocks the third to fifth light transmitting lenses 224, 226, and 228 and the second spacer 232 supported on the inner circumferential surface of the second barrel member 270, so that they retain the second barrel member 270. Do not let go through the bottom.
  • the upper end of the second barrel member 270 is configured to support the second light transmitting lens 222 supported on the inner circumferential surface of the first barrel member 261. Support closely.
  • First and second light transmitting lenses 220 and 222 and the first spacer 230 supported on the inner circumferential surface of the first barrel member 261 may have an upper end of the second barrel member 270. It acts as a retainer that prevents it from falling down at.
  • An aperture 272 is formed on the inner circumferential surface of the second barrel member 270 at a position higher than the third to fifth light transmitting lenses 224, 226, and 228. Therefore, the aperture 272 is a light transmitting lens 220, 222 supported on the inner peripheral surface of the first barrel member 261 and a light transmitting lens 224, 226, 228 supported on the inner peripheral surface of the second barrel member 270 Is placed in between.
  • the aperture 272 determines the amount of light formed in the image sensor 286 and protrudes in a ring shape from the inner circumferential surface of the second barrel member 270.
  • a plurality of light transmitting lenses must have a light transmitting lens arrangement in which the diameter is increased toward the upper side or the diameter increases toward the lower side in order to have a proper effective diameter and assemblability.
  • a light transmitting lens having a large difference in thickness between the center portion and the outer peripheral portion should be provided. In this case, errors in lens shaping are frequent and the yield is reduced, and the design of the barrel may be very difficult.
  • the light transmitting lenses 220 and 222 supported by the first barrel member 261 and the light transmitting lenses 224, 226, and 228 supported by the second barrel member 270 are formed around the aperture 272.
  • Each module may be manufactured and inspected separately, and the modules of the first barrel member 261 and the module of the second barrel member 270 may be assembled to lower the defect rate and maximize productivity.
  • the reflective refractive lens holder 240, the lens assembly cover 250, the reflective refractive lens holder 240, the first barrel member 261, the first barrel member 261, and the second barrel member are provided.
  • the fastening bolt and the adhesive are not applied to the coupling between the second barrel member 270 and the main body coupling bracket 255.
  • the fastening bolt and the adhesive are not applied to supporting the plurality of light transmitting lenses 220, 222, 224, 226, and 228 on the inner circumferential surfaces of the first and second barrel members 261 and 270.
  • the reflective refractive lens holder 240 and the first barrel member 261, the first barrel member 261 and the second barrel member 270, and the second barrel member 270 and the main body coupling bracket 255 are provided. And by screwing the female screw face and the male screw face, the spacing between adjacent lenses is adjusted by spacers 230 and 232. Therefore, the type of lens can be changed and installed, and the distance between lenses can be adjusted appropriately according to the changed lens.
  • the main body 280 includes a main body housing, an image sensor 286, a main circuit board 320, a battery 316, A microphone 331 and the like.
  • the body housing includes a body base 310, a battery holder 300, a body cover 290, and a lens assembly support member 281.
  • the main body cover 290 is integrally formed with a circular disc portion 294 and a tube portion 291 protruding upward in a tubular shape from the center of the disc portion 294.
  • a microphone 331 for converting an audible sound wave into an electric sound signal is mounted on the lower side of the disc portion 294.
  • a sound wave transmission through hole 296 is formed at a point of the disc portion 294 aligned up and down with the microphone 331 so that sound waves around the imaging system 210 can reach the microphone 331 without large loss. .
  • the lens assembly support member 281 is fixedly coupled to the upper end of the tube portion 291 by a plurality of bolts (not shown).
  • the lens assembly support member 281 supports the lens assembly 211 such that the barrel assembly 274 of the lens assembly 211 remains aligned with the image sensor 286.
  • the barrel 260 of the lens assembly 211 is inserted into the central hole of the lens assembly support member 281.
  • a barrel guide 283 extends downward along a central through inner circumferential surface of the lens assembly support member 281 so that the barrel 260 is maintained in alignment with the image sensor 286 in a posture parallel to the Z axis. do.
  • the image sensor 286 detects light formed through the plurality of light transmitting lenses 220, 222, 224, 226, and 228 of the lens assembly 211 to generate an electrical image signal. As described above, the image sensor 286 is fixed to the image sensor circuit board 287. A pair of main body coupling bracket fastening holes 288a and a pair of lens assembly support member fastening holes 288b are formed at the outer circumference of the image sensor circuit board 287. A pair of image sensor circuit board fastenings 282 is provided on the outer circumference of the barrel guide 283 of the lens assembly support member 281.
  • Board 287 is fixedly coupled to lens assembly support member 281.
  • the lens assembly 211 by allowing the other pair of bolts 285 to be fastened to the pair of bolt fastening portions 259 of the body coupling bracket 255 through the pair of body coupling bracket fastening holes 288a. ) Is fixedly coupled to the image sensor circuit board 287 on which the image sensor 286 is fixedly mounted.
  • a lens assembly support member fastening portion 292 is provided at an upper end of the tube portion 291 of the body cover 290, and a body cover fastening corresponding to the lens assembly support member fastening portion 292 is provided at the lens assembly support member 281.
  • a part 284 is provided.
  • the lens assembly support member 281 is fixedly coupled to the body cover 290 by fastening the lens assembly support member coupling portion 292 and the body cover coupling portion 284 with a plurality of bolts (not shown).
  • the image sensor 286 is positioned inside the tube portion 291 of the body cover 290.
  • a pair of bolt through holes 289 are provided on the outer circumferential side of the lens assembly support member 281.
  • the barrel 260 of the lens assembly 211 is inserted into the central hole of the lens assembly support member 281, and a pair of bolts (not shown) are inserted through the pair of bolt holes 289 to terminate the bolt.
  • the first barrel member 261 is fixed not to rotate with respect to the screwed second barrel member 270.
  • the second barrel member 270 is screwed to the main body coupling bracket 255 fixed to the image sensor circuit board 287 and the fixed first barrel member 261, the second barrel member 270 is fixed not to rotate.
  • the alignment between the light transmitting lenses 220, 222, 224, 226, 228, the band pass filter 236, and the gap between the image sensor 286 is consistent despite repeated use. It can be maintained, so that high quality imaging quality can be maintained.
  • the battery holder 300 is integrally formed with a tubular outer circumferential wall and a battery bracket 301 surrounding the battery 316 inside the outer circumferential wall.
  • the battery 316 is inserted into the battery bracket 301 from the lower side of the battery holder 300.
  • the main circuit board 320 is mounted inside the outer circumferential wall of the battery holder 300 on the battery bracket 301.
  • a plurality of battery holder fastening portions 295 protruding downward from the disc portion 294 of the body cover 290 is provided, and points of the battery holder 300 corresponding to the plurality of battery holder fastening portions 295 are provided.
  • a plurality of main body cover fastening portions 303 protruding upward are provided.
  • the plurality of bolts 305 are fastened to the plurality of battery holder fastening portions 295 by penetrating the plurality of body cover fastening portions 303 and the main circuit board 320 so that the battery holder 300 may cover the body cover.
  • the main circuit board 320 is fixedly mounted to the plurality of main body cover fastening parts 303.
  • the main circuit board 320 is equipped with a processor (not shown) for converting the image signal generated by the image sensor 286 into image data that can be stored and reproduced.
  • the processor may be implemented, for example, in the form of an integrated circuit chip mounted in a semiconductor package.
  • the main circuit board 320 is provided with data storage means for storing the image data. For example, as illustrated in FIGS. 13 and 14, an SD memory card socket in which a secure digital memory card 125, which is a storage medium, is detachably inserted into the main circuit board 320. 324 may be mounted.
  • the main circuit board 320 includes communication means for transmitting the image data to a device outside the main body 280, for example, a computer or a server outside the main body 280.
  • a USB socket 326 to which a terminal of a universal serial bus cord is detachably inserted may be mounted on the main circuit board 320.
  • the main circuit board 320 and the computer outside the main body 280 may be wired to enable data communication.
  • a terminal of a USB memory may be inserted into the USB socket 326.
  • the WIFI module 328 may be mounted on the main circuit board 320.
  • the WIFI module 328 may transmit the image data to a device outside the main body 280 in a wireless communication method.
  • an SD memory card slot 298 opened to attach and detach the SD memory card 325 to the SD memory card socket 324 from the outside of the main body 280 and the outside of the main body 280.
  • a USB slot 299 is opened to attach or detach the USB terminal to the USB socket 326.
  • the outer circumferential wall of the battery holder 300 is provided with a power button 318 that presses the main circuit board 320 and the image sensor 286 to supply or cut off the electric energy.
  • One side of the main circuit board 320 is mounted with a contact switch (322) to contact or press the power button 318 when the power button 318 is pressed to cut off or connect the power supply circuit.
  • the contact switch 322 is pressed to connect the power supply circuit, and the main circuit board 320 and the image sensor 286. Power is supplied to the imaging system 210 to operate.
  • the contact switch 322 is pressed again to cut off the connected power supply circuit, and the power supply to the main circuit board 320 and the image sensor 286 is cut off.
  • the imaging system 210 is turned off. Electrical energy supplied to the main circuit board 320 and the image sensor 286 may be supplied from a battery 316 embedded in the main body 280, or may be supplied from outside the main body 280.
  • the battery 316 supplies the stored electrical energy to the image sensor 286 and the main circuit board 320.
  • the battery 316 may be a rechargeable secondary battery.
  • a buffer pad 314 is provided on an upper surface of the disc-shaped main body base 310. When the main body base 310 is coupled to the battery holder 300 so that the bottom of the battery holder 300 is closed while the battery 316 is inserted into the battery bracket 301, the lower side of the battery 316 is a buffer pad. 314 is in close contact with the upper surface of the battery 316 is in close contact with the battery bracket 301. Therefore, the battery 316 is fixed not to vibrate inside the battery holder 300.
  • a locking unit including a hook 312 provided in the body base 310 and a hook receiver 306 provided in the battery holder 300 to interfere with the hook 312.
  • the body base 310 is detachably coupled to the battery holder 300.
  • the locking unit may include a hook provided in the battery holder 300 and a hook receiver provided in the body base 310.
  • the battery holder 300 and the main body base 310 may be coupled to each other by fastening bolts (not shown) instead of the locking unit.
  • the omnidirectional imaging system 210 described with reference to FIGS. 9 to 14 may be fixedly mounted on a helmet 3 for a motorcycle driver.
  • the omnidirectional imaging system 210 is used as a black box to grasp the cause of an accident that occurs during the operation of the motorcycle, or more lively and lively according to the movement path of the motorcycle and the driver's movement. It can be used as a photographing apparatus for photographing an image.
  • the omnidirectional imaging system 210 may be attached to the upper side of the helmet 3 by a coupling means such as an adhesive tape, a string, a double-sided tape, a bolt, or the like, and may be integrally formed with the helmet 3. .
  • Figure 15 is only an example of a black box equipped with a 360-degree imaging system 210, in addition, a bicycle driver helmet, a skier helmet, a snowboarder helmet (snow boarder) helmet)
  • the omnidirectional imaging system 210 may be fixedly attached to the roof of the vehicle, or the omnidirectional imaging system 210 may be fixedly attached to the motorcycle or the bicycle body instead of the helmet.
  • the omnidirectional imaging system 210 described above may image an object located at a height that is equal to or lower than that in the surrounding 360 ° direction.
  • the main body 280 is installed on a helmet, a wall top, a power pole top, or a vehicle roof, and the lens assembly is mounted on the main body 280.
  • the 211 can be fixedly mounted to capture an image of the surroundings. In this way, the installation method can be installed in various places to monitor the surroundings and photograph objects.
  • the present invention can be applied to the omnidirectional imaging device, and in particular, can be applied to fields such as live-action mapping, natural landscape photography, astronomical observation, security and surveillance system, virtual reality, driverless cars, and unmanned aerial vehicles.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne un système optique omnidirectionnel de capture d'images destiné à fournir un système optique dans lequel le champ de vision permettant de visualiser un objet est dans la même direction qu'une surface de capteur d'images, et permettant d'obtenir en même temps une faible perte de quantité de lumière, ainsi qu'un champ optique court. La présente invention concerne ainsi un système optique permettant d'observer l'ensemble des 360 degrés, ce système comprenant d'un côté à l'autre, dans cet ordre, une lentille avant, un système de lentilles de formation d'images et une unité de détection d'images, la lentille avant comprenant : une première surface pourvue d'une première surface de réfraction dotée d'une puissance de réfraction positive et présentant une forme de bol avec un centre vide afin de réfracter la lumière incidente ; une deuxième surface destinée à réfléchir la lumière incidente à travers la surface de réfraction sur un côté de la surface de réfraction vers l'autre côté ; et une deuxième surface de réfraction destinée à réfracter la lumière réfléchie par la deuxième surface vers le système de lentilles de formation d'images, tout en remplissant l'espace vide central de la première surface.
PCT/KR2016/012641 2016-03-15 2016-11-04 Système optique omnidirectionnel de capture d'images WO2017159950A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR1020160030835A KR101671340B1 (ko) 2016-03-15 2016-03-15 전방위 촬상용 렌즈 조립체
KR10-2016-0030835 2016-03-15
KR1020160072671A KR101866875B1 (ko) 2016-06-10 2016-06-10 전방위 촬상용 영상 시스템 및 블랙박스
KR10-2016-0072671 2016-06-10
KR1020160124517A KR101801643B1 (ko) 2016-09-28 2016-09-28 전방위 촬상 광학계
KR10-2016-0124517 2016-09-28

Publications (1)

Publication Number Publication Date
WO2017159950A1 true WO2017159950A1 (fr) 2017-09-21

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006235509A (ja) * 2005-02-28 2006-09-07 Yokogawa Electric Corp 全方位撮像装置
KR20100013921A (ko) * 2008-08-01 2010-02-10 한국도로공사 전방위 카메라 및 ｐｔｚ 카메라를 연동하여 촬영하는촬영장치, 촬영방법 및 그 기록매체
JP2012078674A (ja) * 2010-10-04 2012-04-19 Nippon Seiki Co Ltd 全方位カメラ及び全方位レンズ
KR20140094078A (ko) * 2013-01-21 2014-07-30 이선구 광학 렌즈 시스템 및 이를 이용한 영상장치.
KR101511010B1 (ko) * 2015-01-28 2015-04-09 김진태 초근거리 시야 확보를 위한 교정용 렌즈 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006235509A (ja) * 2005-02-28 2006-09-07 Yokogawa Electric Corp 全方位撮像装置
KR20100013921A (ko) * 2008-08-01 2010-02-10 한국도로공사 전방위 카메라 및 ｐｔｚ 카메라를 연동하여 촬영하는촬영장치, 촬영방법 및 그 기록매체
JP2012078674A (ja) * 2010-10-04 2012-04-19 Nippon Seiki Co Ltd 全方位カメラ及び全方位レンズ
KR20140094078A (ko) * 2013-01-21 2014-07-30 이선구 광학 렌즈 시스템 및 이를 이용한 영상장치.
KR101511010B1 (ko) * 2015-01-28 2015-04-09 김진태 초근거리 시야 확보를 위한 교정용 렌즈 장치

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