CN210601467U - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
CN210601467U
CN210601467U CN201921213231.5U CN201921213231U CN210601467U CN 210601467 U CN210601467 U CN 210601467U CN 201921213231 U CN201921213231 U CN 201921213231U CN 210601467 U CN210601467 U CN 210601467U
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CN
China
Prior art keywords
light
plate
emitting surface
light emitting
shaped
Prior art date
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Active
Application number
CN201921213231.5U
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Chinese (zh)
Inventor
本村宪一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Filing date
Publication date
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Publication of CN210601467U publication Critical patent/CN210601467U/en
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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
    • 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
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • 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
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • 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
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • 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
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • 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
    • 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

Abstract

The utility model aims to improve the appearance design nature of vehicle lamps and lanterns. A vehicle lamp (100) is provided with: a first plate-like light emitter (14) having a light guide (12) and a plate-like light guide for emitting light from the light guide (12) from a first light emitting surface (14 b); and a second plate-like light emitter (16) that emits light from the light guide (12) from the second light-emitting surface (16 b). The first plate-shaped light emitting body (14) and the second plate-shaped light emitting body (16) are arranged at an angle such that light emitted from the second light emitting surface (16b) can be seen as a virtual image reflected on the first light emitting surface (14b) when the vehicle lamp (100) is facing.

Description

Vehicle lamp
Technical Field
The present invention relates to a vehicle lamp, and more particularly to a vehicle lamp in which a plate-shaped light emitting body is housed in a lamp chamber.
Background
Conventionally, in order to make a light emitting device such as a vehicle lamp thinner and smaller, it has been proposed to use an organic EL panel as a light source (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2014-110178
SUMMERY OF THE UTILITY MODEL
Problem to be solved by the utility model
Since an organic EL panel generally has a flat light emitting surface, a light emitting device using the organic EL panel as a light source is likely to be a design of a carved board.
The present invention has been made in view of such circumstances, and an object thereof is to improve the design of a vehicle lamp.
Means for solving the problems
In order to solve the above problem, a vehicle lamp according to an aspect of the present invention includes: a first plate-shaped light emitting body having a light source and a plate-shaped light guide body that guides light from the light source and emits the light from a first light emitting surface; and a second plate-like light emitting body that emits light from the second light emitting surface. The first plate-shaped light emitting body and the second plate-shaped light emitting body are disposed at an angle at which light emitted from the second light emitting surface is visible as a virtual image on the first light emitting surface when the vehicle lamp is facing the vehicle lamp.
The first light emitting surface may be subjected to a semi-evaporation treatment.
The second plate-shaped light emitter may include a second light source and a second plate-shaped light guide body that guides light from the second light source and emits the light from the second light emitting surface.
The light source and the second light source may be a common light source.
The common light source may be provided with a light guide.
The first light emitting surface may be formed of a three-dimensional curved surface.
The first and second light emitting faces may emit light in different patterns.
The plate-shaped light guide may have a plurality of first steps which refract light traveling inside the plate-shaped light guide to emit the light from the first light emitting surface, and the second plate-shaped light guide may have a plurality of second steps which refract light traveling inside the second plate-shaped light guide to emit the light from the second light emitting surface to the first light emitting surface and reflect the light from the first light emitting surface.
The second light emitting surface may be flat.
The different patterns may be determined by the patterns of the steps formed at the first and second plate-shaped luminous bodies.
Effect of the utility model
According to the utility model discloses, can improve the appearance design nature of vehicle lamps and lanterns.
Drawings
Fig. 1 is a schematic front view of a vehicle lamp using a light emitting device according to an embodiment of the present invention.
Fig. 2 is a top view of the lamp unit.
Fig. 3 is a left side view of the lamp unit.
Fig. 4 is a sectional view a-a of the lamp unit shown in fig. 1.
Fig. 5 is a B-B sectional view of the lamp unit shown in fig. 1.
Fig. 6 is a diagram for explaining a case where the lamp unit according to the present embodiment emits light.
Description of the reference numerals
10 Lamp unit
11 LED
12 light pipe
14 first plate-shaped luminous body
16 second plate-shaped luminous body
100 vehicle lamp
Detailed Description
Hereinafter, a vehicle lamp according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present specification, when the terms indicating the directions such as "up", "down", "front", "rear", "left", "right", "inside" and "outside" are used, they refer to the directions in the posture when the vehicle lamp is mounted on the vehicle. In addition, since the drawings are for the purpose of describing the positional relationship of the respective members, the actual dimensional relationship of the respective members is not necessarily shown. In the description of the embodiments, the same reference numerals are given to the same components or corresponding components, and repetitive description thereof will be omitted as appropriate.
Fig. 1 is a schematic front view of a vehicle lamp 100 according to an embodiment of the present invention. The vehicle lamp 100 can be used, for example, as a tail lamp or a brake lamp provided in the rear of a vehicle.
As shown in fig. 1, the vehicle lamp 100 includes a lamp body 102, a transparent cover 104 covering an opening on a front surface of the lamp body 102, and a lamp unit 10 provided in a lamp chamber 106 formed by the lamp body 102 and the cover 104.
Fig. 2 is a plan view of the lamp unit 10. Fig. 3 is a left side view of the lamp unit 10. Fig. 4 is a sectional view a-a of the lamp unit 10 shown in fig. 1. Fig. 5 is a B-B sectional view of the lamp unit 10 shown in fig. 1.
As shown in fig. 1 to 5, the lamp unit 10 includes an LED11, a light guide 12, a first plate-like light emitter 14, and a second plate-like light emitter 16.
The light guide 12 is a rod-shaped light guide, and has a substantially circular cross-sectional shape perpendicular to the extending direction thereof. The substantially circular shape includes, in addition to a circular shape, an elliptical shape and a shape obtained by deforming a circular shape. The light guide 12 allows light from the LED11 to enter the light guide from an entrance end face 12a provided on the end face. The light guide 12 guides light incident inside and emits the light to the outside from an emission surface 12b along the extending and protruding direction of the light guide 12.
The first plate-like luminous body 14 is a plate-like light guide body formed of a three-dimensional curved surface. The first plate-like luminous body 14 has an incident surface 14a provided on the lower surface thereof, a first light emitting surface 14b provided on the front surface thereof, and a plurality of steps 14c provided on the rear surface thereof. The first plate-like luminous bodies 14 emit light from the first light emitting surface 14b toward the front of the lamp while guiding the light incident from the incident surface 14a to the inside. The step 14c has a function of refracting a part of light traveling inside the first plate-like luminous body 14 and emitting the refracted part to the front of the lamp. In the present embodiment, the step 14c is a concave step having a triangular cross section formed on the rear surface of the first plate-shaped light emitter 14, but the shape of the step 14c is not particularly limited, and may be, for example, a convex step.
The first light emitting surface 14b has a three-dimensional curved surface. Further, the first light emitting surface 14b is subjected to a semi-vapor deposition process using aluminum or the like.
The second plate-like luminous body 16 is a flat plate-like light guide. The second plate-like luminous body 16 has an incident surface 16a provided on the rear side surface thereof, a second light emitting surface 16b provided on the upper surface thereof, and a plurality of steps 16c provided on the lower surface thereof. The second plate-like luminous bodies 16 emit light upward from the second light emitting surface 16b while guiding the light incident from the incident surface 16a inside. The step 16c has a function of refracting and emitting upward a part of light traveling inside the second plate-like luminous body 16. In the present embodiment, the step 16c is a concave step having a triangular cross section formed on the lower surface of the second plate-shaped light emitter 16, but the shape of the step 16c is not particularly limited, and may be, for example, a convex step.
In the present embodiment, the light guide 12 constitutes a common light source for the first plate-like light emitters 14 and the second plate-like light emitters 16. However, in another embodiment, a light source (light guide) may be provided for each of the first and second plate- like light emitters 14 and 16.
The first plate-shaped light emitter 14 and the second plate-shaped light emitter 16 are adjacently arranged so that their light emitting surfaces face in different directions. In the present embodiment, the first plate-shaped light emitter 14 and the second plate-shaped light emitter 16 are disposed at such an angle that the light emitted from the second light emitting surface 16b of the second plate-shaped light emitter 16 is visible as a virtual image on the first light emitting surface 14b of the first plate-shaped light emitter 14 when the vehicle lamp 100 (lamp unit 10) is facing. In the present embodiment, as shown in the cross-sectional view of fig. 4, the first plate-shaped light emitter 14 and the second plate-shaped light emitter 16 are arranged so that the light emitting surfaces thereof face each other at an angle of 45 degrees.
Fig. 6 is a diagram for explaining a case where the lamp unit 10 according to the present embodiment emits light. If current is applied to LED11, LED11 emits light. Light emitted from the LED11 enters the light guide 12 through the entrance end face 12 a. The light entering the light guide 12 travels inside the light guide 12 while repeating total reflection. While traveling inside the light guide 12, light is emitted from the emission surface 12 b.
A part of the light emitted from the emission surface 12b of the light guide 12 is incident into the first plate-like light emitter 14 through the incidence surface 14 a. The light incident into the first plate-like light emitter 14 is refracted by the step 14c formed on the rear surface of the first plate-like light emitter 14 while traveling in the first plate-like light emitter 14, and is emitted from the first light emitting surface 14b on the front surface toward the front of the lamp (see light rays L1 and L2).
On the other hand, the other part of the light emitted from the emission surface 12b of the light guide 12 is incident into the second plate-like luminous body 16 from the incidence surface 16 a. The light incident into the second plate-shaped light emitter 16 is refracted by the step 16c formed on the lower surface of the second plate-shaped light emitter 16 while traveling in the second plate-shaped light emitter 16, and is emitted upward from the second light emitting surface 16b on the upper surface. The light irradiated from the second light emitting surface 16b is reflected toward the front of the lamp at the first light emitting surface 14b of the first plate-like light emitting body 14 subjected to the semi-vapor deposition treatment (see light rays L3, L4).
As described above, in the vehicle lamp 100 according to the present embodiment, the light (reference light beams L1 and L2) irradiated from the first light emitting surface 14b of the first plate-shaped light emitter 14 and the light (light beams L3 and L4) irradiated from the second light emitting surface 16b of the second plate-shaped light emitter 16 and reflected on the first light emitting surface 14b of the first plate-shaped light emitter 14 are irradiated to the front of the lamp.
In the vehicle lamp 100 according to the present embodiment, when the vehicle lamp 100 is facing the vehicle lamp 100, the light emitted from the second light emitting surface 16b of the second plate-shaped light emitter 16 is seen to be reflected on the first light emitting surface 14b of the first plate-shaped light emitter 14 as a virtual image. For example, the light beam L3 actually emitted from the predetermined position Pa on the second light emitting surface 16b of the second plate-like light emitter 16 appears to be emitted from the position Pa 'in the depth direction of the first light emitting surface 14b of the first plate-like light emitter 14, and the light beam L4 actually emitted from the other predetermined position Pb on the second light emitting surface 16b of the second plate-like light emitter 16 appears to be emitted from the other position Pb' in the depth direction of the first light emitting surface 14b of the first plate-like light emitter 14. That is, in the depth direction of the first plate-like luminous bodies 14, as if there were luminous bodies as virtual images 16 ', it appears that light is irradiated from the virtual images 16'.
As described above, according to the vehicle lamp 100 of the present embodiment, when the vehicle lamp 100 is viewed from the front, the light (the reference light rays L1, L2) emitted from the first light emitting surface 14b of the first plate-like luminous body 14 on the near side and the light (the reference light rays L3, L4) emitted from the virtual image 16' on the far side overlap with each other, and therefore, a three-dimensional light emission state having a sense of depth can be presented to the viewer. Therefore, according to the present embodiment, the vehicle lamp 100 having improved design can be realized.
In addition to the above, a method of arranging two plate-like light emitters with a space in the front-rear direction may be considered to present a light-emitting state having a sense of depth to a viewer. However, in this case, since the other plate-like light-emitting body is visible behind the one light-emitting body when not lit, a light-emitting state with a sense of depth is anticipated to some extent by the viewer, and it is difficult for the viewer to be surprised when lit.
On the other hand, in the vehicle lamp 100 according to the present embodiment, at the time of lighting, only the first plate-shaped luminous bodies 14 are visible when not lit in the front view angle, and at the time of lighting, the virtual images 16' of the second plate-shaped luminous bodies 16 are reflected on the back side of the first plate-shaped luminous bodies 14, so that the viewer can be provided with a sense of surprise.
In the vehicle lamp 100 according to the present embodiment, the first light emitting surface 14b of the first plate-shaped light emitter 14 and the second light emitting surface 16b of the second plate-shaped light emitter 16 emit light in different patterns. The light emission pattern of the plate-shaped light emitter is determined by the pattern of the steps formed on the plate-shaped light emitter. In this way, the first light-emitting surface 14b and the second light-emitting surface 16b emit light in different patterns, and thus a new light-emitting pattern can be formed by overlapping two different light-emitting patterns in the depth direction.
In the vehicle lamp 100 according to the present embodiment, a plate-shaped light guide is used as the first plate-shaped light emitter 14 instead of the organic EL panel. The organic EL panel cannot be formed as a three-dimensional curved surface, but can be formed as a three-dimensional curved surface if it is a plate-like light guide. Therefore, according to the present embodiment, the vehicle lamp 100 having a high degree of freedom in shape can be realized. In another embodiment, an organic EL panel may be used as the second plate-like light emitter 16 instead of the plate-like light guide.
The present invention has been described above based on the embodiments. It is understood by those skilled in the art that these embodiments are examples, and various modifications are possible in the combination of each component and each process step, and these modifications are also within the scope of the present invention.
In the above embodiment, the light guide 12 is used as a light source for emitting light toward the first and second plate-shaped light emitters 14 and 16, but light from LEDs may be directly incident on the incident surfaces of the first and second plate-shaped light emitters 14 and 16.

Claims (10)

1. A vehicle lamp includes:
a first plate-shaped light emitting body having a light source and a plate-shaped light guide body that guides light from the light source and emits the light from a first light emitting surface; and
a second plate-like luminous body which emits light from the second light emitting surface,
the lamp for a vehicle is characterized in that,
the first plate-shaped light emitter and the second plate-shaped light emitter are arranged at an angle such that light emitted from the second light emitting surface is visible as a virtual image on the first light emitting surface when the vehicle lamp is facing the vehicle lamp.
2. The vehicular lamp according to claim 1,
the first light emitting surface is subjected to a semi-evaporation treatment.
3. The vehicular lamp according to claim 1 or 2,
the second plate-shaped light emitter includes a second light source and a second plate-shaped light guide body that guides light from the second light source and emits the light from the second light emitting surface.
4. The vehicular lamp according to claim 3,
the light source and the second light source are a common light source.
5. The vehicular lamp according to claim 4,
the common light source is provided with a light guide pipe.
6. The vehicular lamp according to claim 1 or 2,
the first light emitting surface is formed by a three-dimensional curved surface.
7. The vehicular lamp according to claim 1 or 2,
the first and second light emitting faces emit light in different patterns.
8. The vehicle lamp according to claim 3, wherein the plate-shaped light guide has a plurality of first steps that refract light traveling inside the plate-shaped light guide to cause the light to exit from the first light emitting surface, and the second plate-shaped light guide has a plurality of second steps that refract light traveling inside the second plate-shaped light guide to cause the light to exit from the second light emitting surface to the first light emitting surface and cause the first light emitting surface to reflect the light.
9. The vehicular lamp according to claim 6, wherein the second light emitting surface is flat plate-shaped.
10. The vehicle lamp according to claim 7, wherein the different pattern is determined by a pattern of steps formed in the first plate-shaped light emitter and the second plate-shaped light emitter.
CN201921213231.5U 2018-08-10 2019-07-30 Vehicle lamp Active CN210601467U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-151596 2018-08-10
JP2018151596A JP7281883B2 (en) 2018-08-10 2018-08-10 vehicle lamp

Publications (1)

Publication Number Publication Date
CN210601467U true CN210601467U (en) 2020-05-22

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CN201910694933.8A Active CN110822373B (en) 2018-08-10 2019-07-30 Vehicle lamp
CN201921213231.5U Active CN210601467U (en) 2018-08-10 2019-07-30 Vehicle lamp

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CN (2) CN110822373B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110822373A (en) * 2018-08-10 2020-02-21 株式会社小糸制作所 Vehicle lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3139884A1 (en) * 2022-09-19 2024-03-22 Valeo Vision Vehicle lighting device configured to perform a high-mounted brake light function

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Publication number Priority date Publication date Assignee Title
FR2953781B1 (en) 2009-12-11 2016-02-26 Automotive Lighting Rear Lamps France DEVICE FOR MOTOR VEHICLE SIGNALING LIGHT
FR2974616B1 (en) * 2011-04-29 2015-12-25 Valeo Illuminacion SIGNALING DEVICE WITH "STOP" AND "POSITION" FUNCTIONS USING A LIGHT GUIDE AND GENERATING A 3D EFFECT
JP5753012B2 (en) * 2011-07-05 2015-07-22 株式会社小糸製作所 Vehicle lighting
JP6292653B2 (en) * 2013-07-02 2018-03-14 株式会社小糸製作所 Vehicle lighting
JP6419444B2 (en) * 2014-03-14 2018-11-07 株式会社小糸製作所 A lamp that represents the light tunnel
JP6340975B2 (en) 2014-07-17 2018-06-13 市光工業株式会社 Vehicle lighting
FR3030684B1 (en) * 2014-12-19 2019-09-06 Valeo Vision LUMINOUS DEVICE COMPRISING SURFACE SOURCES OF LIGHT
JP7281883B2 (en) * 2018-08-10 2023-05-26 株式会社小糸製作所 vehicle lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110822373A (en) * 2018-08-10 2020-02-21 株式会社小糸制作所 Vehicle lamp
CN110822373B (en) * 2018-08-10 2022-02-22 株式会社小糸制作所 Vehicle lamp

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JP7281883B2 (en) 2023-05-26
CN110822373A (en) 2020-02-21
CN110822373B (en) 2022-02-22
JP2020027731A (en) 2020-02-20

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