WO2024005102A1 - Lampe de véhicule - Google Patents

Lampe de véhicule Download PDF

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Publication number
WO2024005102A1
WO2024005102A1 PCT/JP2023/024047 JP2023024047W WO2024005102A1 WO 2024005102 A1 WO2024005102 A1 WO 2024005102A1 JP 2023024047 W JP2023024047 W JP 2023024047W WO 2024005102 A1 WO2024005102 A1 WO 2024005102A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
light
vehicle
fresnel lens
vehicular lamp
Prior art date
Application number
PCT/JP2023/024047
Other languages
English (en)
Japanese (ja)
Inventor
学 矢田部
歩実 渡辺
裕章 奥
良輔 青島
Original Assignee
市光工業株式会社
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 市光工業株式会社 filed Critical 市光工業株式会社
Publication of WO2024005102A1 publication Critical patent/WO2024005102A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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
    • 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
    • F21W2103/35—Brake lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present invention relates to a vehicle lamp.
  • a vehicle lamp that has a configuration in which light from a light source is diffused by a cap, enters a Fresnel lens, and is emitted from the Fresnel lens to the front of the vehicle via an inner lens and an outer lens (for example, see Patent Document 1). ).
  • the vehicle lamp described in Patent Document 1 is required to effectively utilize the light diffused by the cap and have an excellent appearance.
  • the present invention has been made in view of the above, and an object of the present invention is to provide a vehicle lamp with excellent appearance.
  • a vehicle lamp according to the present invention includes a light source, a cap that diffuses light from the light source, and a Fresnel lens that emits light from the cap to the front side, and the cap includes at least a portion of the Fresnel lens. It has a focus matching part where the focus matches the lens.
  • the focusing portion is provided on the output surface of the cap.
  • the Fresnel lens has a predetermined focus
  • the focus matching portion has a spherical shape centered on the predetermined focus of the Fresnel lens.
  • the focusing portion is connected to the surroundings via a step portion.
  • the step portion has a flat portion along the front-back direction.
  • the cap is disposed at a position shifted in a predetermined direction with respect to the center of the light emitting range of the lamp when viewed from the front, and the focusing portion is arranged in the predetermined direction with respect to the center of the cap when viewed from the front. It is placed at a position shifted in the direction.
  • the vehicle lamp described above further includes an inner panel having a rectangular opening at a position overlapping the cap when viewed from the front, and the focusing portion extends from the center of the cap to one end of one side of the opening when viewed from the front. It is formed so that it spreads from one end to the other end.
  • the above vehicle lamp further includes an inner lens that emits light from the Fresnel lens to the front side.
  • a vehicle lamp with excellent appearance can be provided.
  • FIG. 1 is a diagram showing an example of the rear part of a vehicle according to this embodiment.
  • FIG. 2 is a diagram showing the configuration along the AA cross section in FIG. 1.
  • FIG. 3 is an enlarged view of a part of FIG. 2.
  • FIG. 4 is a diagram showing an example of the cap viewed from the front side.
  • FIG. 5 is a perspective view showing an example of the cap viewed from the lower front side.
  • each of the front side and back side directions is, for example, a direction when the device is mounted on a vehicle (vehicle mounted state).
  • the front direction is the front direction (front side)
  • the rear direction is the rear direction (back side).
  • the front direction is the back direction (back side).
  • the outside of the vehicle is the front direction (front side)
  • the inside of the vehicle is the back direction (back side).
  • FIG. 1 is a diagram showing an example of the rear part of a vehicle 1 according to the present embodiment.
  • the vehicle 1 includes a vehicle body 2, a traveling device 3, and a vehicle lamp 100.
  • the vehicle body 2 has a driver's cab in which a driver rides.
  • the vehicle body 2 is supported by a traveling device 3.
  • the traveling device 3 includes wheels on which tires 4 are mounted, a steering device for changing the traveling direction of the vehicle 1, and a brake device for decelerating or stopping the traveling device 3.
  • the vehicle 1 includes an entrance/exit door provided on the side of the vehicle body 2 and a back door 7 provided at the rear of the vehicle body 2.
  • the entry/exit door and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.
  • the vehicle lamp 100 is provided on the left and right sides of the rear portion of the vehicle body 2, respectively.
  • the vehicle lamp 100 is provided at the rear of the vehicle body 2. Therefore, the rear side in the front-rear direction will be referred to as the front side of the vehicle lamp 100, and the front side in the front-rear direction will be referred to as the rear side of the vehicle lamp 100.
  • the vehicle lamp 100 includes a functional lamp.
  • Functional lamps include a tail lamp that is installed at the rear of the vehicle body 2 and lights up in conjunction with the lighting of the headlights, a stop lamp that is installed at the rear of the vehicle body 2 and lights up in conjunction with the operation of the brake system, and a stop lamp that is installed at the rear of the vehicle body 2 and lights up in conjunction with the operation of the brake system. Examples include a rear turn signal lamp that lights up to indicate the direction in which the vehicle 1 is traveling.
  • the vehicle lamps 100 are each arranged on the vehicle body 2 side, for example.
  • the vehicle body 2 is a fixed part.
  • the back door 7 is a movable part.
  • the structure of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 are symmetrical in the left-right direction and have substantially the same structure.
  • the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 will be simplified or omitted.
  • FIG. 2 is a diagram showing the configuration along the AA cross section in FIG. 1.
  • FIG. 2 shows an example of the vehicle lamp 100.
  • FIG. 3 is an enlarged view of a part of FIG. 2.
  • the vehicle lamp 100 includes a light source 10, a cap 20, a Fresnel lens 30, an inner lens 40, an inner panel 60, and an outer lens 70.
  • the vehicle lamp 100 has a structure in which a light source 10, a cap 20, a Fresnel lens 30, and an inner lens 40 are housed in a lamp chamber 80 surrounded by an inner panel 60 and an outer lens 70.
  • the light source 10 a semiconductor light source such as an LED, a laser light source, or the like is used, for example.
  • the light source 10 has a light emitting surface 11 that emits light.
  • the light source 10 is supported by a support member 12 via a substrate or the like.
  • the support member 12 may have a configuration that radiates heat from the light source 10.
  • the cap 20 is placed on the front side of the light emitting surface 11 of the light source 10.
  • the cap 20 diffuses the light from the light emitting surface 11 and emits it to the front side.
  • Cap 20 is supported by frame 27.
  • the cap 20 has an entrance surface 21 and an exit surface 22.
  • the light from the light source 10 enters the entrance surface 21 .
  • the entrance surface 21 has a curved shape.
  • the exit surface 22 emits the light that has entered from the entrance surface 21 .
  • the detailed configuration of the cap 20, including the shape of the exit surface 22, will be described later.
  • the present embodiment exemplifies a configuration in which the cap 20 and the frame 27 are integrally formed, the cap 20 and the frame 27 may be formed separately.
  • the Fresnel lens 30 is placed on the front side of the cap 20.
  • the Fresnel lens 30 emits the light from the cap 20 to the front side.
  • the Fresnel lens 30 has a plate shape and includes a front section 31 , an inner wall section 32 , and an outer wall section 33 .
  • the front portion 31 faces the light emission surface 22 of the cap 20 .
  • the inner wall portion 32 is bent from the end portion of the front portion 31 on the inner side of the vehicle toward the rear side.
  • the outer wall portion 33 is bent from the end of the front portion 31 on the outer side of the vehicle toward the rear side.
  • the Fresnel lens 30 has a plate shape, and has a concentric groove prism formed therein.
  • the Fresnel lens 30 emits light from a predetermined focal point P to the front side as parallel light.
  • the predetermined focal point P is provided at the light source 10 or at a position near the light source 10.
  • the inner lens 40 is arranged on the front side of the Fresnel lens 30.
  • Inner lens 40 has an entrance surface 41 and an exit surface 42 .
  • Light from the Fresnel lens 30 enters the entrance surface 41 .
  • the output surface 42 outputs the light incident from the input surface 41 to the front side.
  • the inner lens 40 is configured to diffuse light, such as a prism or a grain, and diffuses the light from the Fresnel lens 30 and emits it to the front side.
  • the inner panel 60 holds the light source 10, the cap 20, the Fresnel lens 30, the inner lens 40, and the outer lens 70.
  • the inner panel 60 has a rectangular opening 61 at a position overlapping the cap 20 when viewed from the front.
  • the opening 61 is arranged to surround the light source 10.
  • the opening 61 has four sides 62, 63, 64, and 65.
  • the outer lens 70 accommodates the light source 10, the cap 20, the Fresnel lens 30, and the inner lens 40 between the outer lens 70 and the inner panel 60.
  • the outer lens 70 transmits the light emitted from the output surface 42 of the inner lens 40 to the front side (to the rear of the vehicle).
  • FIG. 4 is a diagram showing an example of the cap 20 viewed from the front side.
  • FIG. 5 is a perspective view showing an example of the cap 20 viewed from the lower front side.
  • the exit surface 22 has a curved surface portion 23, a focusing portion 24, a stepped portion 25, and a peripheral portion 26.
  • the cap 20 is disposed at a position shifted toward the inside of the vehicle with respect to the central axis AX2 of the light emission range R, which is the light emission range of the vehicle lamp 100, when viewed from the front (FIG. 2).
  • the curved surface portion 23 has a shape such as a free-form surface, for example.
  • the focus matching section 24 is formed so that the focus matches the Fresnel lens 30.
  • the focus matching section 24 has a spherical shape centered on the focal point P of the Fresnel lens 30.
  • the focus matching section 24 is connected to the surroundings via a stepped section 25.
  • the step portion 25 has a flat portion extending in the front-back direction.
  • the stepped portion 25 is formed as a punching surface when punching is performed during manufacturing of the cap 20.
  • the portion where the focusing portion 24 is provided is thinner in the front-back direction than other portions, such as the portion where the curved surface portion 23 is provided.
  • the focusing unit 24 is disposed at a position shifted in a predetermined direction, that is, toward the inside of the vehicle, with respect to the central axis AX1 of the cap 20 when viewed from the front.
  • the focusing portion 24 is formed to extend from the central axis AX1 of the cap 20 in a front view to a portion from one end 62a to the other end 62b of one side 62 of the opening 61 of the inner panel 60.
  • one of the step portions 25 extends upward and inside the vehicle from the central axis AX1 of the cap 20 toward one end 62a of the side 62. Further, the other stepped portion 25 extends from the central axis AX1 of the cap 20 toward the other end 62b of the side 62 toward the inside of the vehicle and downward.
  • the peripheral portion 26 is arranged on the inside of the vehicle with respect to the focusing portion 24.
  • the peripheral edge portion 26 is formed, for example, in a planar shape orthogonal to the front-back direction.
  • the vehicle lamp 100 When the driver performs a predetermined operation to turn on a tail lamp and a stop lamp, such as turning on a headlamp or operating a brake, the vehicle lamp 100 acquires an operation signal from an operation device.
  • a control circuit provided on a substrate or the like of the light source 10 controls light emission of the light source 10 according to the acquired signal.
  • lights L1, L2, L3, and L4 are emitted from the light emitting surface 11 of the light source 10.
  • the light L1 travels along the central axis AX1 from the light emitting surface 11, and enters a position in the central portion of the entrance surface 21 of the cap 20 that is slightly shifted toward the outside of the vehicle from the central axis AX1.
  • This light L1 is emitted from the central portion of the curved surface portion 23 of the emission surface 22 of the cap 20, enters the Fresnel lens 30, and is emitted from the emission surface 35 of the Fresnel lens 30.
  • the light L2 travels from the light emitting surface 11 to spread outward from the vehicle, and enters the portion of the entrance surface 21 of the cap 20 that is outside the vehicle. This light L2 is refracted and emitted to the outside of the vehicle near the end of the curved surface portion 23 on the outside of the vehicle, enters the Fresnel lens 30, is controlled to the front side by the Fresnel lens 30, and is emitted from the exit surface 35. .
  • the light L3 travels from the light emitting surface 11 to spread toward the inside of the vehicle, and enters the portion of the entrance surface 21 of the cap 20 that is inside the vehicle.
  • This light L3 is emitted from the focal point 24 of the output surface 22 without being refracted, enters the Fresnel lens 30, and is controlled and emitted from the output surface 35 of the Fresnel lens 30 toward the front side.
  • a comparative example for light L3 is shown as light L3a.
  • the light L3a enters the inside part of the vehicle and flows from the curved surface part 23a of the output surface 22 to the inside of the vehicle.
  • the light is refracted and emitted, enters the Fresnel lens 30, and is emitted from the exit surface 35 of the Fresnel lens 30.
  • the light L3a refracted and emitted from the curved surface portion 23a toward the inside of the vehicle is shifted toward the inside of the vehicle with respect to the light L3 whose focal point is the light source 10.
  • the light L3a is refracted to the outside of the vehicle by the Fresnel lens 30 and exits.
  • a dark portion is generated at the end Ra (see FIGS. 2 and 3) of the inner lens 40 on the inside of the vehicle, resulting in poor appearance.
  • the light L4 travels further from the light emitting surface 11 to the inside of the vehicle relative to the light L3, and enters the entrance surface 21 of the cap 20 on the inside of the vehicle.
  • This light L4 is emitted from the focal point 24 of the exit surface 22 without being refracted, enters the Fresnel lens 30, and exits from the exit surface 35 of the Fresnel lens 30.
  • a comparative example for light L4 is shown as light L4a.
  • the light L4a is incident on the inside of the vehicle, refracted and emitted from the curved surface portion 23a of the exit surface 22 toward the inside of the vehicle, and is incident on the inside wall portion 32 of the Fresnel lens 30.
  • This light L4a is not emitted to the front side as effective light, and when the light is turned on, a dark portion is generated at the end Ra of the inner lens 40 on the inside of the vehicle, resulting in poor appearance.
  • the light L4 is emitted from the focusing unit 24, so that the light L4 is less diffused toward the inside of the vehicle than the light L4a. Therefore, a decrease in brightness at the end Ra of the inner lens 40 on the inside of the vehicle can be suppressed.
  • the vehicle lamp 100 includes the light source 10, the cap 20 that diffuses the light from the light source 10, and the Fresnel lens 30 that emits the light from the cap 20 to the front side.
  • the cap 20 has at least a part of it a focus matching part 24 where the focal point P matches the Fresnel lens 30.
  • the cap 20 since the cap 20 has at least a part of the focus matching part 24 whose focal point P coincides with that of the Fresnel lens 30, it is possible to suppress the diffusion of the light emitted from the focus matching part 24. Therefore, since the light diffused by the cap 20 can be effectively used, deterioration in appearance can be suppressed, and a vehicle lamp with excellent appearance can be provided.
  • the focusing section 24 is provided on the emission surface 22 of the cap 20. According to this configuration, the diffusion of the light emitted from the focusing section 24 can be appropriately suppressed.
  • the Fresnel lens 30 has a predetermined focus P
  • the focus matching portion 24 has a spherical shape centered on the predetermined focus P of the Fresnel lens 30. According to this configuration, the focus P of the Fresnel lens 30 and the focus P of the focus matching section 24 can be appropriately matched.
  • the focusing section 24 is connected to the surroundings via the stepped section 25. According to this configuration, the diffusion of the light emitted from the focusing section 24 can be appropriately suppressed.
  • the stepped portion 25 has a flat portion along the front-back direction. According to this configuration, when manufacturing the cap 20 by molding, the stepped portion 25 can be used as a cutting surface during die cutting. Therefore, unintended refraction of light can be suppressed compared to the case where the stepped portion 25 is formed of a gradually changing surface.
  • the cap 20 is disposed at a position shifted in a predetermined direction with respect to the central axis AX2 of the lamp light emitting range R when viewed from the front, and the focus matching section 24 It is arranged at a position shifted in a predetermined direction with respect to the central axis AX1. According to this configuration, it is possible to appropriately suppress the diffusion of light heading in a predetermined direction from the cap 20.
  • the vehicle lamp 100 further includes an inner panel 60 having a rectangular opening 61 at a position overlapping the cap 20 when viewed from the front, and the focusing portion 24 is connected to the central axis AX1 of the cap 20 when viewed from the front. It is formed to widen from one end 62a of one side 62 of the opening 61 to the other end 62b. According to this configuration, the focus matching section 24 can be appropriately designed.
  • the vehicle lamp 100 according to the present embodiment further includes an inner lens 40 that emits the light from the Fresnel lens 30 to the front side. According to this configuration, formation of a dark portion on the inner lens 40 can be suppressed, and the vehicle lamp 100 with excellent appearance can be obtained.
  • the technical scope of the present invention is not limited to the above embodiments, and changes can be made as appropriate without departing from the spirit of the present invention.
  • the configuration in which the focus matching section 24 is provided on the exit surface 22 has been described as an example, but the present invention is not limited to this.
  • the focus matching section 24 may be provided, for example, on the entrance surface 21 in addition to the exit surface 22.

Abstract

La présente invention concerne une lampe de véhicule qui comprend une source de lumière, un capuchon qui diffuse la lumière provenant de la source de lumière, et une lentille de Fresnel qui émet de la lumière depuis le capuchon vers le côté surface avant, le capuchon ayant, dans au moins une partie de celui-ci, une partie d'adaptation de point focal dans laquelle le point focal correspond à celui de la lentille de Fresnel.
PCT/JP2023/024047 2022-06-30 2023-06-28 Lampe de véhicule WO2024005102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022106432A JP2024005944A (ja) 2022-06-30 2022-06-30 車両用灯具
JP2022-106432 2022-06-30

Publications (1)

Publication Number Publication Date
WO2024005102A1 true WO2024005102A1 (fr) 2024-01-04

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PCT/JP2023/024047 WO2024005102A1 (fr) 2022-06-30 2023-06-28 Lampe de véhicule

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JP (1) JP2024005944A (fr)
WO (1) WO2024005102A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010287397A (ja) * 2009-06-10 2010-12-24 Koito Mfg Co Ltd 車両用灯具
JP2013026008A (ja) * 2011-07-20 2013-02-04 Koito Mfg Co Ltd 車両用灯具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010287397A (ja) * 2009-06-10 2010-12-24 Koito Mfg Co Ltd 車両用灯具
JP2013026008A (ja) * 2011-07-20 2013-02-04 Koito Mfg Co Ltd 車両用灯具

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