WO2019124116A1 - Phare de véhicule - Google Patents

Phare de véhicule Download PDF

Info

Publication number
WO2019124116A1
WO2019124116A1 PCT/JP2018/045066 JP2018045066W WO2019124116A1 WO 2019124116 A1 WO2019124116 A1 WO 2019124116A1 JP 2018045066 W JP2018045066 W JP 2018045066W WO 2019124116 A1 WO2019124116 A1 WO 2019124116A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lamp
scanning
light source
time
Prior art date
Application number
PCT/JP2018/045066
Other languages
English (en)
Japanese (ja)
Inventor
昭貴 金森
Original Assignee
株式会社小糸製作所
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
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2019124116A1 publication Critical patent/WO2019124116A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/46—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B60Q1/381—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps with several light sources activated in sequence, e.g. to create a sweep effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/40—Welcome lights, i.e. specific or existing exterior lamps to assist leaving or approaching the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights

Definitions

  • the present invention relates to a lamp used in a vehicle such as a car, and more particularly to a lamp capable of lighting in a sequential or random manner.
  • Patent Document 1 proposes a sequential lamp in which a lighting region changes in the LED arrangement direction by arranging a plurality of LEDs in series and emitting light of these LEDs in order.
  • this lamp By configuring this lamp as a turn signal lamp, it is possible to display the traveling direction of the vehicle to other vehicles and pedestrians in a more easily understandable manner, and it is possible to enhance the design effect when the lamp is lit.
  • Patent Document 2 discloses that light emitted from one light source is selectively or sequentially reflected by a plurality of micro mirrors consisting of DMDs (digital mirror devices) and projected onto a head cover of a lamp.
  • DMDs digital mirror devices
  • Technology has been proposed that can be configured as a sequential lamp by changing the bright area, that is, the light emitting area of the lamp. If this technology is configured as a turn signal lamp as in Patent Document 1, the traveling direction of the vehicle can be displayed more easily to other vehicles and pedestrians, and the design effect at the time of lighting the lamp can be realized. It can be enhanced.
  • Patent Document 1 requires a plurality of LEDs, and also requires a lighting control circuit for causing the LEDs to emit light sequentially, so the number of component parts increases and the lamp becomes expensive.
  • Patent Document 2 requires the DMD and a control circuit for driving and controlling each micro mirror, and in particular, the DMD is expensive. Therefore, as in Patent Document 1, the number of components is large and the lamp is expensive. It becomes a thing.
  • Patent Documents 1 and 2 are lighting control by switching of the LED or the micro mirror, the change of the lighting area becomes intermittent due to the resolution corresponding to the number of the LED or the micro mirror. There is also a problem that it can not be set to the lighting mode, that is, the lighting mode in which the light emitting area appears to change continuously.
  • An object of the present invention is to provide a vehicle lamp with high designability, in which the light emitting region appears to continuously change with high resolution while reducing the number of component parts.
  • the present invention is a vehicle lamp having a light source and a light transmitting cover which becomes a lamp light emitting surface when the light emitted from the light source is projected, and the light emitted from the light source is continuously applied at a predetermined cycle.
  • the light scanning unit includes a light scanning unit that scans and projects the light onto the light transmitting cover, and a lamp control unit that controls light emission of the light source in synchronization with light scanning by the light scanning unit.
  • the lamp control means controls the light emission timing and light emission time of the light emission of the light source.
  • the light emitting region can be changed by the light source and the light scanning means, the number of components can be reduced.
  • the light emission area is changed by light scanning, a lamp in which the light emission area changes continuously and smoothly can be realized.
  • FIG. II-II horizontal sectional view along the line.
  • FIG. 7 is a diagram showing light emission timing and lighting mode in free mode 2;
  • the schematic perspective view of the light source unit and light scanning means of different embodiment.
  • FIG. 1 shows an embodiment in which the present invention is applied to a rear combination lamp RCL disposed on the rear right side of a vehicle body.
  • the tail lamp TL, the backup lamp BUL, and the turn signal lamp TSL are integrally configured.
  • the inner unit IU in which the tail lamp TL and the backup lamp BUL are integrated, and the tail lamp TL And the turn signal lamp TSL are divided into an integrated outer unit OU. In the following description, this outer unit OU will be described.
  • the front and rear sides of the lamp are referred to as the front and the rear, respectively.
  • the left rear combination lamp (not shown) has a structure symmetrical to that of the above-mentioned right rear combination lamp, and therefore the description thereof will be omitted.
  • FIG. 2 is a cross-sectional view corresponding to the II-II line of FIG. 1, and is a horizontal cross-sectional view of the turn signal lamp TSL of the outer unit OU.
  • the outer unit OU includes a lamp housing 1 configured of a lamp body 11 and a light transmitting cover 12 attached to a front opening of the lamp body 11.
  • the lamp body is divided into an upper tail lamp TL and a lower turn signal lamp TSL by a partition wall, which does not appear in the figure, and a light source is provided in each of these lamps.
  • the light transmitting cover 12 is divided into two regions corresponding to these lamps.
  • each of the tail lamp TL and the turn signal lamp TSL when the light source emits light, the light emitted from the light source is projected onto the light transmission cover 12 and further transmitted through the light transmission cover 12 and directed to the front of the lamp It is emitted.
  • a required light refracting step is formed on the light transmitting cover 12, and the light emitted from the light transmitting cover 12 by this light refracting step is irradiated to the lamp front area with the required light distribution required for each lamp .
  • ramp when each lamp
  • the present invention is applied to the turn signal lamp TSL.
  • the lamp body 11 is partitioned in a horizontally long shape by the partition wall, and the light transmitting cover 12 of the turn signal lamp TSL is correspondingly corresponding. When viewed from the front, it is formed in a substantially rectangular shape long in the horizontal direction.
  • the lamp body 11 of the turn signal lamp TSL has a substantially central portion in the horizontal direction recessed toward the rear of the lamp, and the light source unit 2 and the light emitted from the light source unit 2 enter the recessed area 11a. Is reflected toward the light transmitting cover 12 and the light scanning means 3 for deflecting the reflecting direction in the horizontal direction is provided.
  • FIG. 3 is a schematic perspective view of the main part of the turn signal lamp TSL.
  • the light source unit 2 is provided with a light source 21 in a cylindrical case 20.
  • a light source 21 an LED (light emitting diode) or an LD (laser diode) that emits amber light or yellow light is used.
  • the light source 21 an LED (light emitting diode) or an LD (laser diode) that emits amber light or yellow light is used.
  • the light source 21 an LED (light emitting diode) or an LD (laser diode) that emits amber light or yellow light is used.
  • the light source 21 an LED (light emitting diode) or an LD (laser diode) that emits amber light or yellow light is used.
  • LD laser diode
  • a condenser lens 22 is disposed at a front side position of the light emitting surface of the LED 21.
  • the condenser lens 22 condenses and emits the light emitted from the LED 21.
  • the light source unit 2 is attached to one side of the recessed area 11a of the lamp body 11 in the horizontal direction, and the light emitted from the condenser lens 22 is located at a position obliquely behind the lamp. It is configured to emit towards.
  • the light scanning means 3 is composed of a micro electro mechanical system (MEMS) mirror.
  • MEMS micro electro mechanical system
  • the MEMS mirror 3 uses a uniaxial (one-dimensional) MEMS mirror.
  • the MEMS mirror 3 is attached to the recessed area 11a with its light reflecting surface 31 directed to the front of the lamp.
  • the axis 32 of the light reflection surface portion 31 of the MEMS mirror is directed in the vertical direction, and when the MEMS mirror 3 is driven, the light reflection surface portion 31 is horizontally tilted and the light emitted from the light source unit 2 is The horizontal incident angle is to be changed.
  • the MEMS mirror 3 when the MEMS mirror 3 is driven, the light incident on the light reflecting surface portion 31 is reflected while the angle in the horizontal direction is changed, and is projected on the light transmitting cover 12.
  • the light transmitting cover 12 has a required light refracting step 12a formed on the inner surface, and transmits the projected light and emits it toward the front of the lamp, and at the same time, it is perpendicular to the horizontal direction by the light refracting step 12a.
  • the light is refracted or diverged in the direction, and light irradiation is performed with a required light distribution.
  • the light source unit 2 and the MEMS mirror 3 are each connected to a lamp control means 4 schematically shown in FIG.
  • the lamp control means 4 includes a light source control unit 41 electrically connected to the light source unit 2 to control the light emission state of the light source unit 2, that is, the luminous intensity of the LED 21 and the light emission timing.
  • the lamp control means 4 is electrically connected to the MEMS mirror 3 and drives the MEMS mirror 3 to control the light reflecting surface portion 31 in a horizontal direction, thereby projecting the light to the inner surface of the light transmitting cover 12 And a scan control unit 42 that scans the light in the horizontal direction.
  • the scanning control unit 42 controls tilting of the light reflecting surface portion 31 of the MEMS mirror 3, but here, from the left side in the horizontal direction in FIG. From here, control is performed to tilt at a required speed toward the outside in the vehicle width direction. In addition, after reaching the end point tilting position on the opposite side, it is returned to the starting point tilting position instantly.
  • the one-reciprocation tilting cycle in the scan control unit 42 that is, the cycle from the starting point tilting position to the starting point tilting position again is a time shorter than the afterimage time of the human eye. For example, the cycle is set shorter than 1/30 seconds. Then, the scan control unit 42 repeatedly performs such tilt control.
  • the scan control unit 42 may be tilted at a required speed from the outer side to the inner side in the vehicle width direction, and may be instantaneously returned to the opposite side.
  • the direction may also be reciprocated at a predetermined speed.
  • the light source control unit 41 is configured to control the light emission intensity and the light emission timing of the LED 21 of the light source unit 2 in synchronization with the tilting of the MEMS mirror 3.
  • the light emission timing is set in advance, and control of the light emission timing is executed based on, for example, a timing program stored in a memory (not shown) provided in the lamp control means 4. A specific example of this timing control will be described later.
  • the lamp control means 4 is connected to a turn switch SWt operated by the driver, a hazard switch SWh, a free switch SWf, and an N / S (normal / sequential) switch SWns.
  • a turn switch SWt operated by the driver a hazard switch SWh, a free switch SWf, and an N / S (normal / sequential) switch SWns.
  • the turn switch SWt is turned on when the turn signal lamp TSL indicates a direction in which the vehicle travels.
  • the hazard switch SWh is turned on when an emergency stop display or a continuous stop display is performed on the turn signal lamp TSL.
  • the N / S switch SWns is switched when setting to a different mode, that is, a normal mode or a sequential mode, when the direction indication or emergency stop display described above is performed on the turn signal lamp TSL.
  • the free switch SWf is set when the turn signal lamp TSL is turned on for the purpose different from the direction indication and the emergency display and the like.
  • the free switch SWf can set a plurality of modes, and can set free mode 1 to free mode 3 as described later.
  • a lighting mode of the turn signal lamp TSL having the above configuration will be described.
  • (Turn ⁇ Normal mode) When the driver operates the N / S switch SWns and sets the normal mode, when the turn switch SWt is turned on to the advancing side of the vehicle, the corresponding right or left turn signal lamp TSL It is turned on.
  • the scan control unit 42 reciprocates and controls the MEMS mirror 3 in the horizontal direction at a predetermined scan cycle Ts, here, a cycle of 1/30 seconds as described above.
  • the light source control unit 41 alternately controls light emission and extinction at a predetermined light emission cycle Th, for example, a light emission cycle of 1/2 to 1 second, of the light source unit 2.
  • FIG. 4A is a control timing chart of the light source unit 2 in the light source control unit 41.
  • the horizontal axis is the scanning time T, and the vertical axis is the luminous intensity I of the light source unit 2.
  • the light emission and extinction of the light source unit 2 are alternately repeated with one scanning time of the MEMS mirror 3, that is, the light emission period Th sufficiently longer than the scanning period Ts.
  • Light emitted from the light source unit 2 is reflected by the MEMS mirror 3 and projected onto the inner surface of the light transmitting cover 12 at time T1 when the light source unit 2 in FIG. 4A emits light.
  • the diameter of the light flux of the reflected light in particular, the size in the vertical direction is at least approximately equal to or larger than the vertical size of the light transmitting cover 12.
  • the projected light is projected while being repeatedly scanned in the horizontal direction at a scanning cycle Ts on the entire surface of the light transmitting cover 12 by the tilting of the MEMS mirror 3.
  • the projected light is refracted by the light refracting step 12 a of the light transmitting cover 12 and diverged to the front of the lamp and irradiated toward a predetermined light distribution area. Since the scanning period Ts of light by the MEMS mirror 3 controlled by the scanning control unit 42 is as described above, as shown in FIG. 4 (b 1), the entire surface of the light transmitting cover 12, that is, the human eye, It is observed that the light emitting surface of the turn signal lamp TSL emits light. Here, the light emission state is shown in a stippled manner.
  • FIG. 4 (b 2) shows a state in which the light transmitting cover 12 is extinguished.
  • the light source control unit 41 repeats light emission and extinction of the light source unit 2 at the light emission cycle Th described above, so that the turn signal lamp TSL has an appearance in which the light emission surface blinks at the light emission cycle Th, and normal turn signal display is performed.
  • the light source control unit 41 controls the light source unit 2 to emit light only for a time shorter than the scanning cycle Ts. That is, light is emitted only for a part of time on the time axis in one scanning cycle Ts. Then, the light emission time on the time axis is gradually lengthened as the number of repetitions of scanning increases. When the light emission time of the light source unit 2 reaches approximately one scanning cycle Ts, it returns to the beginning again and executes the same control. A specific example of this will be described.
  • FIG. 5 is a view showing the lighting state of the turn signal lamp TSL on the right side as time passes.
  • the horizontal axis is the scanning time T, and shows an area of one scanning cycle Ts.
  • the vertical axis is the luminous intensity I of the light source unit 2.
  • FIGS. 5 (a2) to 5 (d2) are front views of the light transmitting cover 12 as the light emitting surface of the turn signal lamp TSL, and the dotted regions in the same manner as FIG. 4 show the light emitting regions.
  • the light source unit 2 In the initial scanning period of lighting start of FIG. 5 (a1), the light source unit 2 emits light at a predetermined light intensity for a short time from the scanning start. In the next scanning cycle of FIG. 5 (b1), the light source unit 2 emits light for the same light intensity and for a longer time than the previous one.
  • FIG. 5 (c1) shows light emission at the next scanning cycle. In this manner, the light emission time is gradually extended as the number of repetitions of the scanning cycle increases, and when the predetermined number of repetitions in FIG. 5 (d1) is reached, the light source unit 2 emits light for the entire time of the scanning cycle Ts. It will be in the state.
  • the light emitting area of the light source unit 2 on which the light of the light source unit 2 is projected is from the left side area as time passes.
  • the light gradually expands toward the right side, that is, from the inside to the outside in the vehicle width direction, and the entire surface of the light transmitting cover 12 finally becomes the light emitting area.
  • the turn signal lamp TSL is temporarily turned off, and the sequential display is repeated again.
  • the sequential display is performed in which the light emitting area on the light emitting surface of the turn signal lamp TSL is gradually expanded from the left side to the right side, which is the traveling direction of the vehicle.
  • FIG. 5 shows a state in which the light emitting area is expanded in four steps, but actually, by expanding the light emitting area while passing through more steps, the light emitting area becomes an appearance that is expanded continuously, The design effect of sequential display is enhanced.
  • the light emission area is changed for each scan, but the light emission area may be changed for each of a plurality of scans. Further, the speed at which the light emitting region is changed may not be constant, and may be gradually increased or decreased. It is needless to say that the left turn signal lamp expands the light emitting area from the right to the left in the opposite direction.
  • the light source control unit 41 causes the light source unit 2 to emit light for a time shorter than the scanning cycle Ts, as in the turn sequential mode.
  • the free mode 1 as shown in FIGS. 6 (a1) to 6 (d1), the light source unit 2 is caused to emit light for a part of the time at an intermediate timing of the scanning cycle Ts in the first FIG. 6 (a1).
  • the central region in the vehicle width direction of the light transmitting cover 12 of the turn signal lamp TSL is made to emit light.
  • the light emission timing (point) of the light source unit 2 is gradually advanced, and at the same time, the extinction timing is gradually delayed.
  • the light emitting area in the light transmitting cover 12 is gradually expanded from the center in the vehicle width direction toward the left and right.
  • light is emitted over the entire period of the scanning cycle Ts as shown in FIG. 6 (d1), so that the entire surface of the light transmitting cover 12 becomes a light emitting area as shown in FIG. 6 (d2).
  • the turn signal lamp TSL is temporarily turned off, and the same lighting state is repeated again.
  • lighting control may be performed so that the light emitting region is gradually expanded from the both sides of the light transmitting cover 12 toward the center.
  • the light source control unit 41 in the first FIG. 7 (a1) 2 is made to emit light
  • both left and right areas of the light transmitting cover 12 of the turn signal lamp TSL in the vehicle width direction are made to emit light.
  • the light source unit 2 is caused to emit light at the timing when the light emission of the light source unit 2 is gradually sent and at the advanced timing.
  • the light emitting area is controlled to move from the left and right toward the center as in b2) and (c2).
  • the light emission area of the turn signal lamp gradually moves from the left and right in the vehicle width direction toward the center.
  • FIG. 7 (d1) light is emitted over the entire period of the scanning cycle Ts, and as shown in FIG. 7 (d2), the entire surface of the light transmitting cover 12 becomes a light emitting region. After that, although not shown, the entire surface of the turn signal lamp TSL is extinguished, and the same lighting state as described above is repeated again.
  • the lighting states in FIGS. 7 (d1) and 7 (d2) may be omitted.
  • the light emitting area may be moved from the center of the light transmitting cover 12 toward the left and right.
  • the light source control unit 41 controls the light source unit 2 so as to emit light randomly for a time shorter than the scanning cycle Ts.
  • control is performed so that light is emitted at one or more random timings in one scanning cycle Ts.
  • FIGS. 8 (a2) to (d2) a part or a plurality of parts of the light transmitting cover 12 emit light, but this light emitting area has no regularity and moves randomly while changing. It becomes a lighting state to emit light.
  • the free mode 1 to free mode 3 described above can be applied to use as a so-called hospitality lamp in which the turn signal lamp is turned on when locking and unlocking the door of the car.
  • the light emission timing of the light source unit 2 and the light emission time at that time can be set arbitrarily.
  • the turn signal lamp TSL can be configured by one light source unit 2, that is, the light source, and one MEMS mirror 3, it can be configured with the minimum number of components, resulting in small size and low cost. It can be configured.
  • the turn signal lamp TSL when the turn signal lamp TSL is controlled to be turned on, the light emitted from the light source unit 2 is continuously scanned by the MEMS mirror 3 with respect to the light transmitting cover 12 to turn the turn signal lamp TSL into a light emission state.
  • the light emission area can be changed continuously and smoothly, and a lamp with high resolution and high design effect can be configured.
  • a two-axis (two-dimensional) MEMS mirror 3A may be used as a light scanning means.
  • the parts equivalent to those in FIG. 3 are denoted by the same reference numerals, but the biaxial MEMS mirror 3A has a tilting frame 33 supporting the shaft 32 of the light reflecting surface portion 31.
  • the tilting frame 33 Is tilt-controlled in the vertical direction (vertical direction) by the shaft 34.
  • the light reflecting surface portion 31 is controlled to tilt in the horizontal direction and in the vertical direction.
  • the condenser lens 22 of the light source unit 2 is constituted by a long focus lens, whereby the diameter of the light flux of the light emitted toward the MEMS mirror 3A and reflected there and projected onto the light transmission cover 12 is It is configured to be smaller in diameter than the configuration of FIG. 3.
  • the light source unit 2 of the configuration of this embodiment and the MEMS mirror 3A are incorporated into the turn signal lamp TSL shown in FIG. 2 and the turn signal lamp TSL is turned on, the light is transmitted by driving the MEMS mirror 3A. It becomes possible to scan the light beam projected onto the cover 12 in the horizontal direction and also scan and project in the vertical direction. That is, by repeatedly scanning in the horizontal direction and simultaneously scanning in the vertical direction, it is possible to project the light flux on the entire surface of the light transmitting cover 12 by one period of vertical scanning.
  • lighting control can be performed as (free mode 4). That is, as shown in an example of the light emission timing in FIG. 10A, when six horizontal scans h1 to h6 are performed during one vertical scan cycle, the scan cycle in each horizontal scan h1 to h6 The timing of light emission at Ts and the light emission time Th1 in one light emission are controlled to change at random. For example, the light emission time and the extinction time are controlled at random timing or irregular timing similar to the random number.
  • the turn signal lamp TSL is used as a hospitality lamp for turning on the turn signal lamp when locking and unlocking the door of a car it can.
  • lighting control can be performed in the form of the above-described turn normal or turn sequential, and lighting control can be performed as hazard normal or hazard sequential.
  • a plurality of light sources emitting different color light may be provided, and these light sources may be selectively emitted appropriately.
  • a red LED, a green LED, and a blue LED are provided as light sources, and when the light is emitted as a turn signal lamp, the red LED and the green LED are simultaneously emitted to turn on amber light.
  • the red LED and the green LED are simultaneously emitted to turn on amber light.
  • colorful random light emission of red, blue and green can be realized, and the design effect can be further enhanced.
  • the light source emits light at a predetermined light intensity
  • the light intensity of the light source may be changed stepwise or continuously along the time axis.
  • the light emission area can be smoothly moved by changing the light intensity at the time of light emission continuously with time.
  • the LED is used as the light source in the above embodiment, the present invention is not limited to this, and the above-described LD may be configured by other light emitting elements such as OLED (organic EL diode) as well as the above. Or you may comprise by light sources other than light emitting elements, such as a light bulb. Further, although the MEMS mirror is used as the light scanning means according to the present invention, any light scanning means capable of continuously scanning the light emitted from the light source with respect to the light emitting surface of the lamp may be used. You may comprise by a reflector.
  • OLED organic EL diode
  • the present invention is applied to the turn signal lamp, but when configured as a lamp limited to lighting in the free mode, it may be configured as a lamp independent of the turn shig lamp.
  • lamp housing 2 light source unit (light source) 3, 3A MEMS mirror (light scanning means) 4 lamp control means 11 lamp body 12 translucent cover (light emitting surface) 21 LED (light emitting diode) Reference Signs List 22 focusing lens 31 light reflecting surface 41 light source control unit 42 scan control unit TSL turn signal lamp (lamp for vehicle)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un phare de véhicule, qui comporte moins d'éléments que les phares classiques et est esthétiquement attrayant en ce qu'une région d'émission de lumière ayant un pouvoir de résolution élevé semble changer de façon continue. Ledit phare de véhicule, comportant une source de lumière (unité de source de lumière) (2) et un couvercle translucide (12) qui sert de face d'émission de phare lorsque la lumière provenant de la source de lumière (2) est projetée, comprend : un moyen de balayage optique (miroir MEMS) (3) pour balayer en continu la lumière provenant de la source de lumière (2) à une période prédéfinie et projeter la lumière balayée sur le couvercle translucide (12) ; et un moyen de commande de phare (4) pour commander l'émission de lumière de la source de lumière (2) en synchronisation avec le balayage de lumière.
PCT/JP2018/045066 2017-12-21 2018-12-07 Phare de véhicule WO2019124116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017244860A JP7002320B2 (ja) 2017-12-21 2017-12-21 車両用ランプ
JP2017-244860 2017-12-21

Publications (1)

Publication Number Publication Date
WO2019124116A1 true WO2019124116A1 (fr) 2019-06-27

Family

ID=66993446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/045066 WO2019124116A1 (fr) 2017-12-21 2018-12-07 Phare de véhicule

Country Status (2)

Country Link
JP (1) JP7002320B2 (fr)
WO (1) WO2019124116A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023145432A1 (fr) * 2022-01-31 2023-08-03 株式会社小糸製作所 Lampe de communication de véhicule

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7345339B2 (ja) * 2019-09-30 2023-09-15 スタンレー電気株式会社 車両用灯具の点灯制御装置及び点灯制御方法、車両用灯具システム
JP2023174306A (ja) * 2022-05-27 2023-12-07 ダイムラー トラック エージー 点灯制御装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014184914A (ja) * 2013-03-25 2014-10-02 Stanley Electric Co Ltd 車両用灯火装置
JP2015201296A (ja) * 2014-04-07 2015-11-12 株式会社小糸製作所 車両用灯具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014184914A (ja) * 2013-03-25 2014-10-02 Stanley Electric Co Ltd 車両用灯火装置
JP2015201296A (ja) * 2014-04-07 2015-11-12 株式会社小糸製作所 車両用灯具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023145432A1 (fr) * 2022-01-31 2023-08-03 株式会社小糸製作所 Lampe de communication de véhicule

Also Published As

Publication number Publication date
JP2019111856A (ja) 2019-07-11
JP7002320B2 (ja) 2022-02-04

Similar Documents

Publication Publication Date Title
US10473284B2 (en) Apparatus for spatially and spectrally adaptable dichromatic white light source using spatial light modulator
JP6114653B2 (ja) 車両用灯具
JP5118564B2 (ja) 車両用灯具
US10309607B2 (en) Lighting system
WO2019124116A1 (fr) Phare de véhicule
US9897283B2 (en) Generating a light emission pattern by illuminating a phosphor surface
JP6445441B2 (ja) 光学ユニット
JP7274476B2 (ja) 空間的に制御可能なリフレクタ要素を備えた照明装置
JP2009048786A (ja) 車両用前照灯
KR20190141090A (ko) 차량용 램프
JP6279394B2 (ja) 車両用発光装置
CN108291704B (zh) 包括数字屏幕的光束投射装置和装备有这种装置的前照灯
JP2019077348A (ja) 車両用前照灯装置
JP6935185B2 (ja) 車両用前照灯
JP2016110964A (ja) 車両用ランプ
CN107107812B (zh) 与车辆进入管理相关联的迎接性可动照明和/或信号装置
JP5477992B2 (ja) 警告灯
WO2018212010A1 (fr) Unité optique
JP6884161B2 (ja) 自動車車両のヘッドライト用の発光ダイオード照明装置および走査装置
CN107000635B (zh) 与车辆定位相关联的可动的迎接照明和/或信号装置
US20200240609A1 (en) Vehicle lighting device with a digital micromirror device
KR101987287B1 (ko) 차량용 램프
JP2009054435A (ja) 車両用ランプ
JP2023079890A (ja) 車両用表示灯
JP2008305639A (ja) 車両用前照灯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18890945

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18890945

Country of ref document: EP

Kind code of ref document: A1