CN114651151B - Lamp unit and vehicle lamp - Google Patents
Lamp unit and vehicle lamp Download PDFInfo
- Publication number
- CN114651151B CN114651151B CN202180006332.9A CN202180006332A CN114651151B CN 114651151 B CN114651151 B CN 114651151B CN 202180006332 A CN202180006332 A CN 202180006332A CN 114651151 B CN114651151 B CN 114651151B
- Authority
- CN
- China
- Prior art keywords
- unit
- emitting element
- light emitting
- light
- low
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000005286 illumination Methods 0.000 claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- 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
- F21S41/25—Projection lenses
- F21S41/265—Composite lenses; Lenses with a patch-like shape
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
-
- 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
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
-
- 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
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
- F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The lamp unit (3) is provided with: a first low-beam illumination unit (7 a) configured to emit a first low-beam light distribution pattern having a horizontal cutoff line; a second low-beam illumination unit (7 d) configured to emit a second low-beam light distribution pattern having an inclined cutoff line; and high beam illumination units (7 b, 7 c) which are arranged between the first low beam illumination unit (7 a) and the second low beam illumination unit (7 d) and are configured to emit a high beam light distribution pattern. The first low-beam lighting unit (7 a), the high-beam lighting units (7 b, 7 c), and the second low-beam lighting unit (7 d) are arranged side by side in the left-right direction of the lamp unit (3).
Description
Technical Field
The present disclosure relates to a lamp unit and a vehicle lamp mounted with the lamp unit.
Background
Patent document 1 discloses a left-side vehicle lamp equipped with a left-side lamp unit and a right-side vehicle lamp equipped with a right-side lamp unit.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2014-078477
Disclosure of Invention
Problems to be solved by the invention
In the left-side vehicle lamp and the right-side vehicle lamp disclosed in patent document 1, it is necessary to separately manufacture a left-side lamp unit mounted on the left-side vehicle lamp and a right-side lamp unit mounted on the right-side vehicle lamp. Since it is necessary to manufacture two different lamp units for the left-side vehicle lamp and the right-side vehicle lamp in this way, manufacturing costs of the lamp units and the vehicle lamp increase. From the above viewpoints, there is room for research on a method for reducing the manufacturing cost of a lamp unit and a vehicle lamp.
The purpose of the present disclosure is to reduce the manufacturing cost of a lamp unit and a vehicle lamp.
Means for solving the problems
A lamp unit according to an embodiment of the present disclosure includes:
a first low-beam illumination unit configured to emit a first low-beam light distribution pattern having a first cutoff line;
A second low-beam illumination unit configured to emit a second low-beam light distribution pattern having a second cutoff line; and
And a high beam lighting unit which is arranged between the first low beam lighting unit and the second low beam lighting unit and is configured to emit a high beam light distribution pattern.
The first low beam lighting unit, the second low beam lighting unit, and the high beam lighting unit are arranged side by side in a first direction.
According to the above configuration, the high beam lighting unit is disposed between the first low beam lighting unit and the second low beam lighting unit. Therefore, when the low beam light distribution pattern is emitted from the vehicle, the first low beam lighting unit and the second low beam lighting unit are turned on, while the high beam lighting unit is turned off. In this way, the appearance of the lamp unit in the low beam emitting state is symmetrical left and right about a predetermined position of the lamp unit.
Therefore, when the same lamp unit is mounted on the left vehicle lamp and the right vehicle lamp, the left vehicle lamp and the right vehicle lamp in the low beam state have substantially the same external appearance, and therefore the same lamp unit can be applied to both the left vehicle lamp and the right vehicle lamp. In this way, it is not necessary to manufacture two different lamp units for the left-side vehicle lamp and the right-side vehicle lamp, respectively, and the manufacturing cost of the lamp units can be reduced.
Effects of the invention
According to the present disclosure, the manufacturing cost of the lamp unit and the vehicle lamp can be reduced.
Drawings
Fig. 1 is a front view of a vehicle.
Fig. 2 is a longitudinal sectional view of the left-side vehicle lamp.
Fig. 3 is a perspective view of the lamp unit.
Fig. 4 is a front view of the lamp unit.
Fig. 5 is a cross-sectional view showing the heat sink, the circuit board, the light emitting element, and the inner lens.
Fig. 6 is a cross-sectional view showing the lens unit of the first low beam lighting unit in an enlarged manner.
Fig. 7 (a) is a front view schematically showing the first low beam lighting unit. Fig. 7 (b) is a front view schematically showing a high beam lighting unit. Fig. 7 (c) is a front view schematically showing the second low beam lighting unit.
Fig. 8 (a) is a diagram schematically showing a light distribution pattern formed on the virtual screen when the low beam is emitted. Fig. 8 (b) is a diagram schematically showing a light distribution pattern formed on the virtual screen when the high beam is emitted.
Fig. 9 is a diagram briefly showing an electrical connection relationship between light emitting elements of the lighting unit.
Fig. 10 (a) is a diagram for explaining a relationship between the turning-on timing of the high beam lighting unit and the turning-off timing of the second low beam lighting unit. Fig. 10 (b) is a diagram for explaining a relationship between the turning-off timing of the high beam lighting unit and the turning-on timing of the second low beam lighting unit.
Detailed Description
Hereinafter, an embodiment of the present invention (hereinafter, referred to as the present embodiment) will be described with reference to the drawings. The dimensions of the components shown in the present drawing are sometimes different from the actual dimensions of the components for convenience of explanation.
In the description of the present embodiment, for convenience of description, the terms "left-right direction", "up-down direction", and "front-rear direction" may be referred to as appropriate. These directions are relative directions set for the lamp unit 3 shown in fig. 3. Here, the "left-right direction" includes a direction of "left direction" and a direction of "right direction". The "up-down direction" is a direction including the "up direction" and the "down direction". The "front-rear direction" is a direction including the "front direction" and the "rear direction". One of the left-right direction, the up-down direction, and the front-rear direction is orthogonal to the remaining two directions.
In the present embodiment, the "horizontal direction" is a direction perpendicular to the up-down direction (vertical direction), and includes a left-right direction and a front-rear direction. In the description of the present embodiment, the directions (the left-right direction, the up-down direction, and the front-rear direction) set for the lamp unit 3 are set to coincide with the directions (the left-right direction, the up-down direction, and the front-rear direction) set for the vehicle 1 and the left-side vehicle lamp 2L.
First, a vehicle 1 according to the present embodiment will be described with reference to fig. 1. Fig. 1 is a front view of a vehicle 1 including a left-side vehicle lamp 2L and a right-side vehicle lamp 2R. As shown in fig. 1, a left vehicle lamp 2L is disposed on the left front side of the vehicle 1, and a right vehicle lamp 2R is disposed on the right front side of the vehicle 1. The same lamp unit 3 is mounted on each of the left-side vehicle lamp 2L and the right-side vehicle lamp 2R.
Next, the left vehicle lamp 2L will be described with reference to fig. 2. The structure of the left vehicle lamp 2L is substantially the same as that of the right vehicle lamp 2R, and therefore, the description of the right vehicle lamp 2R is omitted. Fig. 2 is a longitudinal sectional view of the left-side vehicle lamp 2L. As shown in fig. 2, the left-side vehicle lamp 2L includes a lamp housing 12, a globe 14 covering an opening of the lamp housing 12, and a lamp unit 3. The lamp unit 3 is disposed in a lamp chamber S formed by the lamp housing 12 and the lamp housing 14.
Next, the structure of the lamp unit 3 will be specifically described with reference to fig. 3 to 5. Fig. 3 is a perspective view of the lamp unit 3. Fig. 4 is a front view of the lamp unit 3. Fig. 5 is a cross-sectional view showing the heat sink 6, the circuit board 8, the light emitting elements 5a to 5d, and the inner lens 4 in the lamp unit 3. As shown in fig. 3 to 5, the lamp unit 3 includes a heat sink 6, a bracket 9, a circuit board 8, light emitting elements 5a to 5d, and an inner lens 4. Hereinafter, for convenience of explanation, the light-emitting elements 5a to 5d may be collectively referred to as the light-emitting element 5.
The heat sink 6 is configured to release heat released from the light emitting element 5 into the air in the lamp room S. The heat sink 6 is formed by, for example, extrusion molding an aluminum plate. The bracket 9 is formed of a resin material such as polycarbonate, nylon, or the like, for example, and has a first bracket portion 9a and a second bracket portion 9b that are completely separated from each other.
The first bracket portion 9a is fixed to the heat sink 6 at one end side of the heat sink 6, and is connected to a calibration screw 92 functioning as an optical axis adjustment mechanism and a fulcrum screw 95 functioning as a fulcrum mechanism (see fig. 4). The adjusting screw 92 is configured to adjust the optical axis Ax of the lamp unit 3 in the up-down direction. The second bracket portion 9b is fixed to the heat sink 6 at the other end side of the heat sink 6, and is connected to a calibration screw 93 (see fig. 4) functioning as an optical axis adjustment mechanism. The adjusting screw 93 is configured to adjust the optical axis Ax of the lamp unit 3 in the horizontal direction.
The circuit board 8 is disposed on the front surface 60 of the heat sink 6. The circuit board 8 is electrically connected to a power supply circuit, not shown. In this regard, the power supply circuit may be mounted on the circuit board 8. The light emitting elements 5a to 5d are disposed on the circuit board 8, and are electrically connected to a light source driving circuit, not shown, via the circuit board 8. The light emitting element 5 is, for example, a semiconductor light emitting element such as an LED. The light emitting element 5 is configured to emit white light to the outside, and may include, for example, a blue LED and yellow fluorescent light. The light emitting elements 5a to 5d are aligned in the right-left direction (an example of the first direction). The light emitting element 5b constituting the high beam lighting unit 7b and the light emitting element 5c constituting the high beam lighting unit 7c are arranged between the light emitting element 5a constituting the first low beam lighting unit 7a and the light emitting element 5d constituting the second low beam lighting unit 7d in the left-right direction.
The light emitting elements 5a to 5c are disposed on the circuit board 8 such that the lower ends thereof are parallel to the left-right direction, and the light emitting element 5d is disposed on the circuit board 8 such that the lower ends thereof are inclined to the left-right direction. Since the lower end of the light emitting element 5d is inclined with respect to the left-right direction, the second low beam lighting unit 7d can form a low beam light distribution pattern P2 (an example of a second low beam light distribution pattern) having an inclined cutoff line L2 (an example of a second cutoff line) as described later (see (a) of fig. 8).
The inner lens 4 is disposed on the front surface 60 of the heat sink 6 so as to cover the light emitting elements 5a to 5 d. The inner lens 4 is formed of a transparent resin material such as polycarbonate or acrylic resin. The inner lens 4 has lens units 40a to 40d arranged on the same straight line in the left-right direction. The lens units 40a to 40d are integrally formed.
As shown in fig. 5, a lens unit 40a (an example of a first lens unit) is opposed to the light emitting element 5a (an example of a first light emitting element) in the front-rear direction. The lens unit 40a is configured to form a low beam light distribution pattern P1 (an example of a first low beam light distribution pattern) having a horizontal cutoff line L1 (an example of a first cutoff line) by emitting light emitted from the light emitting element 5a toward the outside of the vehicle 1 (see fig. 8 (a)). Here, fig. 8 (a) is a diagram schematically showing a light distribution pattern formed on a virtual screen disposed in front of the vehicle 1 by 25m when the low beam is emitted. Fig. 8 (b) is a diagram schematically showing a light distribution pattern formed on the virtual screen when the high beam is emitted. The low beam light distribution pattern P1 is formed to extend along the H-H line.
The lens unit 40a has a central light transmitting portion 42a and a peripheral light transmitting portion 43a. The central light transmitting portion 42a faces the light emitting element 5a in the front-rear direction, and is configured to emit a part of the light emitted from the light emitting element 5a toward the outside of the vehicle 1. The peripheral light transmitting portion 43a is provided so as to surround the central light transmitting portion 42a, and is configured to totally reflect the other portion of the light emitted from the light emitting element 5a toward the outside of the vehicle 1. The low beam light distribution pattern P1 is formed by combining the light distribution pattern formed by the central light transmission portion 42a and the light distribution pattern formed by the peripheral light transmission portion 43a.
Two concave portions 54a, 56a are formed in the lens unit 40 a. The recess 54a communicates with the recess 56a, and the diameter of the recess 56a is larger than the diameter of the recess 54 a. The central light transmitting portion 42a has an emission surface 52a and an entrance surface 47a that constitute the bottom surface of the recess 54 a. The peripheral light transmitting portion 43a has an exit surface 53a, an entrance surface 49a, and a total reflection surface 46a that constitute the bottom surface of the concave portion 56a. In the present embodiment, the light emitting element 5a and the lens unit 40a constitute a first low-beam lighting unit 7a configured to form the low-beam light distribution pattern P1.
The lens unit 40b (an example of a third lens unit) is opposed to the light emitting element 5b (an example of a third light emitting element) in the front-rear direction. The lens unit 40b is configured to form a light distribution pattern P3 for high beam by emitting light emitted from the light emitting element 5b toward the outside of the vehicle 1 (see fig. 8 (b)). The lens unit 40b has a central light transmitting portion 42b and a peripheral light transmitting portion 43b. The central light transmitting portion 42b faces the light emitting element 5b in the front-rear direction, and is configured to emit a part of the light emitted from the light emitting element 5b toward the outside of the vehicle 1. The peripheral light transmitting portion 43b is provided so as to surround the central light transmitting portion 42b, and is configured to totally reflect the other portion of the light emitted from the light emitting element 5b toward the outside of the vehicle 1. The light distribution pattern P3 for high beam is formed by combining the light distribution pattern formed by the central light transmission portion 42b and the light distribution pattern formed by the peripheral light transmission portion 43b.
Two concave portions 54b, 56b are formed in the lens unit 40 b. The recess 54b communicates with the recess 56b, and the diameter of the recess 56b is larger than the diameter of the recess 54 b. The central light transmitting portion 42b has an emission surface 52b and an entrance surface 47b that form the bottom surface of the recess 54 b. The peripheral light transmitting portion 43b has an exit surface 53b, an entrance surface 49b, and a total reflection surface 46b that constitute the bottom surface of the concave portion 56b. In the present embodiment, the light emitting element 5b and the lens unit 40b constitute a high beam illumination unit 7b configured to form the high beam light distribution pattern P3.
The lens unit 40c (an example of a third lens unit) is opposed to the light emitting element 5c (an example of a third light emitting element) in the front-rear direction. The lens unit 40c has the same configuration as the lens unit 40b, and is configured to form a light distribution pattern P4 for high beam by emitting light emitted from the light emitting element 5c toward the outside of the vehicle 1 (see fig. 8 (b)). In the description of the present embodiment, the light distribution pattern P4 for high beam formed by the lens unit 40c and the light distribution pattern P3 for high beam formed by the lens unit 40b are assumed to overlap entirely. The lens unit 40c has a central light transmitting portion 42c and a peripheral light transmitting portion 43c. The central light transmitting portion 42c faces the light emitting element 5c in the front-rear direction, and is configured to emit a part of the light emitted from the light emitting element 5c toward the outside of the vehicle 1. The peripheral light transmitting portion 43c is provided so as to surround the central light transmitting portion 42c, and is configured to totally reflect the other portion of the light emitted from the light emitting element 5c toward the outside of the vehicle 1. The light distribution pattern P4 for high beam is formed by combining the light distribution pattern formed by the central light transmission portion 42c and the light distribution pattern formed by the peripheral light transmission portion 43c.
In the lens unit 40c, two concave portions 54c, 56c are formed. The recess 54c communicates with the recess 56c, and the diameter of the recess 56c is larger than the diameter of the recess 54 c. The central light transmitting portion 42c has an emission surface 52c and an entrance surface 47c that form the bottom surface of the recess 54 c. The peripheral light transmitting portion 43c has an exit surface 53c, an entrance surface 49c, and a total reflection surface 46c, which constitute the bottom surface of the concave portion 56c. In the present embodiment, the light emitting element 5c and the lens unit 40c constitute a high beam illumination unit 7c configured to form the high beam light distribution pattern P4.
The lens unit 40d (an example of a second lens unit) is opposed to the light emitting element 5d (an example of a second light emitting element) in the front-rear direction. The lens unit 40d is configured to form a low beam light distribution pattern P2 having an inclined cutoff line L2 by emitting light emitted from the light emitting element 5d toward the outside of the vehicle 1 (see fig. 8 (a)). As shown in fig. 8 (a), the low-beam light distribution pattern P2 is formed to extend obliquely with respect to the H-H line. The light distribution pattern P1 for low beam formed by the lens unit 40a and the light distribution pattern P2 for low beam formed by the lens unit 40d form a light distribution pattern at the time of low beam emission. The lens unit 40d has a central light transmitting portion 42d and a peripheral light transmitting portion 43d. The central light transmitting portion 42d faces the light emitting element 5d in the front-rear direction, and is configured to emit a part of the light emitted from the light emitting element 5d toward the outside of the vehicle 1. The peripheral light transmitting portion 43d is provided so as to surround the central light transmitting portion 42d, and is configured to totally reflect the other portion of the light emitted from the light emitting element 5d toward the outside of the vehicle 1. The low beam light distribution pattern P2 is formed by combining the light distribution pattern formed by the central light transmission portion 42d and the light distribution pattern formed by the peripheral light transmission portion 43d.
In the lens unit 40d, two concave portions 54d, 56d are formed. The recess 54d communicates with the recess 56d, and the diameter of the recess 56d is larger than the diameter of the recess 54 d. The central light transmitting portion 42d has an emission surface 52d and an entrance surface 47d that form the bottom surface of the recess 54 d. The peripheral light transmitting portion 43d has an exit surface 53d, an entrance surface 49d, and a total reflection surface 46d, which constitute the bottom surface of the concave portion 56d. In the present embodiment, the light emitting element 5d and the lens unit 40d constitute a second low beam lighting unit 7d configured to form the low beam light distribution pattern P2.
As described above, in the present embodiment, the lamp unit 3 includes the first low beam lighting unit 7a (hereinafter, simply referred to as "lighting unit 7 a"), the high beam lighting units 7b, 7c (hereinafter, simply referred to as "lighting units 7b, 7 c"), and the second low beam lighting unit 7d (hereinafter, simply referred to as "lighting unit 7 d"). As shown in fig. 5, the illumination units 7a to 7d are arranged side by side in the left-right direction. The illumination units 7b, 7c are arranged between the illumination unit 7a and the illumination unit 7d in the left-right direction.
The emission surfaces 52a to 52d of the central light transmission portions 42a to 42d are located on the same plane, and the emission surfaces 53a to 53d of the peripheral light transmission portions 43a to 43d are located on the same plane.
Next, the lens unit 40a will be specifically described with reference to fig. 6. Fig. 6 is a cross-sectional view showing the lens unit 40a in an enlarged manner. As shown in fig. 6, a part of the light emitted from the light emitting element 5a enters the entrance surface 47a of the central light transmitting portion 42a and reaches the exit surface 52a. Then, the light reaching the emission surface 52a is emitted to the outside in a state of being diffused by the diffusion lens element 48a formed on the emission surface 52a. On the other hand, the other part of the light emitted from the light emitting element 5a is totally reflected by the total reflection surface 46a after entering the entrance surface 49a of the peripheral light transmitting portion 43 a. After that, the light totally reflected by the total reflection surface 46a reaches the emission surface 53a, and is emitted to the outside in a state of being diffused by the diffusion lens element 48a formed on the emission surface 53 a. In this way, the low beam light distribution pattern P1 is formed by the lens unit 40 a.
The lens units 40b to 40d also have the same configuration as the lens unit 40 a. In this regard, as shown in fig. 4, the outgoing surfaces of the lens units 40b to 40d also have diffusion lens elements 48b to 48d. As shown in the figure, the diffusion lens elements 48a to 48c formed in the lens units 40a to 40c are formed to extend substantially in parallel in the up-down direction, respectively. On the other hand, since the lower end of the light emitting element 5d is inclined by an angle α (α > 0 ° with respect to the left-right direction, for example, α=15°), the diffusion lens element 48d formed in the lens unit 40d is formed to extend at an angle α with respect to the up-down direction.
Next, referring to fig. 7, the configuration of the peripheral light transmitting portion 43a of the lens unit 40a, the peripheral light transmitting portion 43b of the lens unit 40b, and the peripheral light transmitting portion 43d of the lens unit 40d will be described below. Fig. 7 (a) is a front view schematically showing the illumination unit 7 a. Fig. 7 (b) is a front view schematically showing the illumination unit 7 b. Fig. 7 (c) is a front view schematically showing the illumination unit 7 d. As shown in fig. 7 (a), the peripheral light transmitting portion 43a of the lens unit 40a is provided so as to surround the central light transmitting portion 42a in the circumferential direction thereof. The peripheral light transmitting portion 43a is divided into eight reflection regions R1 to R8 along the circumferential direction thereof. The reflection regions R1 to R8 each have an angle region of 45 ° from the center of the lens unit 40 a. The reflection regions R1 to R8 each have a total reflection surface 46a having a different outer shape from each other.
As shown in fig. 7 (b), the peripheral light transmitting portion 43b of the lens unit 40b is provided so as to surround the central light transmitting portion 42b in the circumferential direction thereof. The peripheral light transmitting portion 43b is not divided into a plurality of reflection regions in the circumferential direction thereof. Further, since the lens unit 40c has the same structure as the lens unit 40b, the peripheral light transmitting portion 43c of the lens unit 40c is also not divided into a plurality of reflection regions in the circumferential direction thereof.
As shown in fig. 7 (c), the peripheral light transmitting portion 43d of the lens unit 40d is provided so as to surround the central light transmitting portion 42d in the circumferential direction thereof. The peripheral light transmitting portion 43d is divided into eight reflection regions R10 to R17 along the circumferential direction thereof. Each of the reflection regions R10 to R17 has an angle region of 45 ° from the center of the lens unit 40 d. The reflection regions R10 to R17 each have a total reflection surface 46d having a different shape from each other.
Next, the operational effects of the lamp unit 3 according to the present embodiment will be described below.
According to the present embodiment, the illumination units 7b, 7c are arranged between the illumination unit 7a and the illumination unit 7 d. Therefore, when the low-beam light distribution patterns P1, P2 are emitted from the vehicle 1, the illumination units 7a, 7b are turned on, while the illumination units 7b, 7c are turned off. In this way, the appearance of the lamp unit 3 in the low beam emission state is symmetrical left and right with the center position of the lamp unit 3 in the left-right direction as the center. Therefore, when the same lamp unit 3 is mounted on the left vehicle lamp 2L and the right vehicle lamp 2R, the appearance of the lamp unit 3 of the left vehicle lamp 2L in the low beam emission state is substantially identical to the appearance of the lamp unit 3 of the right vehicle lamp 2R in the low beam emission state. Therefore, the same lamp unit 3 can be applied to both the left-side vehicle lamp 2L and the right-side vehicle lamp 2R. In this way, it is not necessary to manufacture two different lamp units for the left-side vehicle lamp 2L and the right-side vehicle lamp 2R, respectively, and the manufacturing costs of the lamp unit 3 and the vehicle lamp can be reduced.
In the lamp unit 3 according to the present embodiment, since the lens units 40a to 40d form the light distribution pattern based on the light emitted from the light emitting elements, respectively, the positional adjustment between the lens units and the light emitting elements becomes important. In this regard, in the present embodiment, since the lens units 40a to 40d are integrally formed in the inner lens 4, the positional adjustment between the lens unit 40a and the light emitting element 5a, the positional adjustment between the lens unit 40b and the light emitting element 5b, the positional adjustment between the lens unit 40c and the light emitting element 5c, and the positional adjustment between the lens unit 40d and the light emitting element 5d can be performed together.
In the present embodiment, the lens units 40a to 40d have a central light transmission portion and a peripheral light transmission portion, respectively. Therefore, the central light transmitting portion and the peripheral light transmitting portion of the lens unit can form a light distribution pattern in a state in which the use efficiency of the light emitted from the light emitting element is improved.
Next, a light distribution pattern when low beam is emitted and a light distribution pattern when high beam is emitted will be described below with reference to fig. 8. As shown in fig. 8 (a), when the lamp unit 3 emits the low beam, the low beam light distribution patterns P1 and P2 are emitted to the outside of the vehicle 1, while the high beam light distribution patterns P3 and P4 are not emitted to the outside of the vehicle 1. That is, when the lamp unit 3 emits the low beam, the illumination units 7a and 7d are turned on, while the illumination units 7b and 7c are turned off.
On the other hand, as shown in fig. 8 (b), when the lamp unit 3 emits the high beam, the high beam light distribution patterns P3 and P4 and the low beam light distribution pattern P1 are emitted, while the low beam light distribution pattern P2 is not emitted. That is, when the lamp unit 3 emits the high beam, the illumination units 7a, 7b, and 7c are turned on, while the illumination unit 7d is turned off. In this way, since the lighting unit 7d is turned off during the high beam emission of the lamp unit 3, the power consumption of the lamp unit 3 can be reduced, and the heat radiation amount emitted from the lamp unit 3 can be reduced.
Next, referring to fig. 9, the electrical connection relationship between the light emitting elements 5a to 5d of the illumination units 7a to 7d will be described below. As shown in fig. 9, the light emitting element 5a is connected to the light emitting elements 5d and 5 b. The light emitting element 5d and the switching switch 21 are connected in series with each other, and the light emitting elements 5b, 5c and the switching switch 22 are connected in series with each other. In addition, a group consisting of the light emitting element 5d and the switch 21 is connected in parallel with a group consisting of the light emitting elements 5b, 5c and the switch 22. The changeover switches 21, 22 are realized, for example, by Field Effect Transistors (FETs). When the lamp unit 3 emits low beam, the change-over switch 21 is turned on, while the change-over switch 22 is turned off. When the lamp unit 3 emits high beam, the changeover switch 21 is turned off, while the changeover switch 22 is turned on.
Next, with reference to fig. 10 (a), a description will be given of a relationship between the lighting timings of the illumination units 7b and 7c and the turning-off timing of the illumination unit 7d when the light beam emitted from the lamp unit 3 is switched from the low beam to the high beam. In this case, the lighting timing t on at which the lighting units 7b, 7c are switched from the off state (off state) to the on state (on state) is earlier than the lighting timing t off at which the lighting unit 7d is switched from the on state to the off state. Specifically, the timing at which the changeover switch 22 changes from off to on is earlier than the timing at which the changeover switch 21 changes from on to off. In this way, the lighting unit 7d can be prevented from being turned off immediately before the lighting units 7b and 7c are turned on.
Next, with reference to fig. 10 (b), a description will be given of a relationship between the turning-off timings of the illumination units 7b and 7c and the turning-on timing of the illumination unit 7d when the light beam emitted from the lamp unit 3 is switched from the high beam to the low beam. In this case, the lighting timing t on at which the lighting unit 7d is switched from the turned-off state to the on state is earlier than the turning-off timing t off at which the lighting units 7b, 7c are switched from the on state to the turned-off state. Specifically, the timing at which the changeover switch 21 is changed from off to on is earlier than the timing at which the changeover switch 22 is changed from on to off. In this way, the lighting units 7b and 7c can be prevented from being turned off immediately before the lighting unit 7d is turned on.
While the embodiments of the present invention have been described above, the technical scope of the present invention should not be construed as being limited by the description of the embodiments. The present embodiment is merely an example, and those skilled in the art will understand that various modifications can be made to the present embodiment within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and the equivalent scope thereof.
For example, in the present embodiment, the lamp unit 3 includes two high beam lighting units, but the number of high beam lighting units is not particularly limited. For example, the number of the high beam lighting units provided in the lamp unit 3 may be one.
In this regard, a case is assumed in which one high beam lighting unit is provided in the lamp unit 3. For example, the lamp unit 3 is configured such that the lighting units 7a, 7b, and 7d are arranged in the left-right direction. In this case, the distance D between the outer edge of the lens unit 40a and the outer edge of the lens unit 40D in the left-right direction of the lamp unit 3 is preferably 0mm < D < 75mm. When the distance D satisfies 0mm < D < 75mm, the lighting unit 7b is turned off by the lighting of the lighting unit 7a and the lighting of the lighting unit 7D during the low beam is emitted from the lamp unit 3, which becomes difficult to be visually recognized from the outside of the vehicle 1.
In the description of the present embodiment, the vehicle 1 is described as a four-wheel vehicle, but the vehicle of the present embodiment is not limited to the four-wheel vehicle. In this connection, the vehicle 1 may also be a two-wheeled motor vehicle or a three-wheeled motor vehicle.
In the present embodiment, the illumination unit 7d is configured to emit the low-beam light distribution pattern P2 having the inclined cutoff line L2, but the cutoff line of the low-beam light distribution pattern P2 may be a horizontal cutoff line. In this regard, when the vehicle 1 is a motorcycle or a motor tricycle, the cutoff line of the low beam light distribution pattern P2 becomes a horizontal cutoff line. In this way, by providing the low beam light distribution pattern P2 with a horizontal cutoff line, the lamp unit 3 can emit low beams for a motorcycle or a motor tricycle.
The disclosure of Japanese patent application No. 2020-025176 filed on 18/2/2020 is appropriately incorporated herein by reference.
Claims (7)
1. A lamp unit, wherein the lamp unit comprises:
a first low-beam illumination unit configured to emit a first low-beam light distribution pattern having a first cutoff line;
A second low-beam illumination unit configured to emit a second low-beam light distribution pattern having a second cutoff line; and
A high beam lighting unit which is arranged between the first low beam lighting unit and the second low beam lighting unit and is configured to emit a high beam light distribution pattern,
The first low-beam lighting unit, the second low-beam lighting unit, and the high-beam lighting unit are arranged side by side in a first direction,
The first direction is a left-right direction,
The first low-beam lighting unit includes:
A first light emitting element that emits light; and
A first lens unit that faces the first light emitting element and is configured to form the first low-beam light distribution pattern by emitting light emitted from the first light emitting element,
The second low-beam lighting unit includes:
a second light emitting element that emits light; and
A second lens unit that faces the second light emitting element and is configured to form the second low-beam light distribution pattern by emitting light emitted from the second light emitting element,
The high beam lighting unit includes:
a third light emitting element that emits light; and
A third lens unit which is disposed opposite to the third light emitting element and is configured to form the light distribution pattern for high beam by emitting light emitted from the third light emitting element,
The third light emitting element is arranged between the first light emitting element and the second light emitting element in the first direction,
The third lens unit is arranged between the first lens unit and the second lens unit in the first direction,
The first light emitting element is electrically connected with the second light emitting element, the third light emitting element, the second light emitting element and the first switch are connected in series with each other, and the third light emitting element and the second switch are connected in series with each other, a group consisting of the second light emitting element and the first switch is connected in parallel with a group consisting of the third light emitting element and the second switch,
In a state where the high beam lighting unit is turned on, the first low beam lighting unit is turned on, and on the other hand, the second low beam lighting unit is turned off,
The timing of the switching of the high beam lighting unit from the off state to the on state is earlier than the timing of the switching of the second low beam lighting unit from the on state to the off state,
In a state where the second low beam lighting unit is turned on, the first low beam lighting unit is turned on, and on the other hand, the high beam lighting unit is turned off,
The timing at which the second low-beam lighting unit is switched from the off state to the on state is earlier than the timing at which the high-beam lighting unit is switched from the on state to the off state.
2. The luminaire unit of claim 1, wherein an exit face of said first lens unit, an exit face of said second lens unit, and an exit face of said third lens unit are located on a same plane.
3. The lighting unit of claim 1 or 2, wherein,
The first light emitting element, the second light emitting element, and the third light emitting element are disposed on the same circuit substrate,
The first lens unit, the second lens unit, and the third lens unit are integrally formed.
4. A luminaire unit according to claim 1 or 2, wherein the distance D between the outer edge of the first lens unit and the outer edge of the second lens unit in the first direction satisfies 0mm < D < 75mm.
5. The lighting unit of claim 1 or 2, wherein,
The first lens unit has:
A central light transmission unit which is configured to face the first light emitting element and to emit a part of light emitted from the first light emitting element toward the outside of the vehicle; and
A peripheral light transmitting portion provided so as to surround the central light transmitting portion and configured to totally reflect another portion of the light emitted from the first light emitting element toward an outside of the vehicle,
The peripheral light transmitting portion is divided into a plurality of reflection regions along a circumferential direction thereof.
6. The lamp unit according to claim 1 or 2, wherein the lamp unit is mounted on a left vehicle lamp disposed on a left front side of a vehicle, and is mounted on a right vehicle lamp disposed on a right front side of the vehicle.
7. A vehicle lamp equipped with the lamp unit according to any one of claims 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-025176 | 2020-02-18 | ||
| JP2020025176 | 2020-02-18 | ||
| PCT/JP2021/001906 WO2021166533A1 (en) | 2020-02-18 | 2021-01-20 | Light fixture unit and light fixture for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114651151A CN114651151A (en) | 2022-06-21 |
| CN114651151B true CN114651151B (en) | 2024-06-07 |
Family
ID=77391950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180006332.9A Active CN114651151B (en) | 2020-02-18 | 2021-01-20 | Lamp unit and vehicle lamp |
Country Status (3)
| Country | Link |
|---|---|
| JP (2) | JP7518892B2 (en) |
| CN (1) | CN114651151B (en) |
| WO (1) | WO2021166533A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW202500416A (en) * | 2023-06-15 | 2025-01-01 | 巨鎧精密工業股份有限公司 | Headlights |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546607A1 (en) * | 1983-05-25 | 1984-11-30 | Cibie Projecteurs | Turn or brake light built into motor vehicle bodywork |
| JPH0338441A (en) * | 1989-07-03 | 1991-02-19 | Koito Mfg Co Ltd | Head lamp for vehicle |
| CN101922666A (en) * | 2008-12-24 | 2010-12-22 | 株式会社小糸制作所 | Vehicular illumination lamp |
| JP2013149412A (en) * | 2012-01-18 | 2013-08-01 | Koito Mfg Co Ltd | Vehicle lighting fixture |
| JP2014086306A (en) * | 2012-10-24 | 2014-05-12 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| CN104279482A (en) * | 2013-07-03 | 2015-01-14 | 斯坦雷电气株式会社 | Vehicle headlamp and vehicle headlamp system |
| JP2016004665A (en) * | 2014-06-16 | 2016-01-12 | 株式会社小糸製作所 | Electronic device |
| JP2017137026A (en) * | 2016-02-05 | 2017-08-10 | トヨタ自動車株式会社 | Vehicular headlight system |
| CN107076390A (en) * | 2014-09-16 | 2017-08-18 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| CN108966409A (en) * | 2017-05-26 | 2018-12-07 | 株式会社小糸制作所 | The lighting circuit of Vehicular lamp and light source |
| CN109114522A (en) * | 2018-11-16 | 2019-01-01 | 湖南德霸照明制造有限公司 | Automobile-used fog lamp assembly |
| CN109556071A (en) * | 2017-09-25 | 2019-04-02 | 株式会社小糸制作所 | Headlight for automobile |
| CN109578932A (en) * | 2017-09-28 | 2019-04-05 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| CN109780501A (en) * | 2017-11-14 | 2019-05-21 | 株式会社小糸制作所 | Headlight for automobile and its to light method of adjustment, to light adjustment mechanism |
| WO2019124188A1 (en) * | 2017-12-19 | 2019-06-27 | 株式会社小糸製作所 | Vehicle headlight |
| JP2019153484A (en) * | 2018-03-05 | 2019-09-12 | コイト電工株式会社 | Illumination device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05238308A (en) * | 1992-02-28 | 1993-09-17 | Matsushita Electric Works Ltd | Lighting control device |
| JP4044024B2 (en) * | 2003-09-29 | 2008-02-06 | 株式会社小糸製作所 | Vehicle headlamp |
| JP6039964B2 (en) | 2012-08-10 | 2016-12-07 | 株式会社小糸製作所 | Vehicle headlamp |
-
2021
- 2021-01-20 WO PCT/JP2021/001906 patent/WO2021166533A1/en active Application Filing
- 2021-01-20 CN CN202180006332.9A patent/CN114651151B/en active Active
- 2021-01-20 JP JP2022501711A patent/JP7518892B2/en active Active
-
2024
- 2024-07-05 JP JP2024108745A patent/JP2024133632A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546607A1 (en) * | 1983-05-25 | 1984-11-30 | Cibie Projecteurs | Turn or brake light built into motor vehicle bodywork |
| JPH0338441A (en) * | 1989-07-03 | 1991-02-19 | Koito Mfg Co Ltd | Head lamp for vehicle |
| CN101922666A (en) * | 2008-12-24 | 2010-12-22 | 株式会社小糸制作所 | Vehicular illumination lamp |
| JP2013149412A (en) * | 2012-01-18 | 2013-08-01 | Koito Mfg Co Ltd | Vehicle lighting fixture |
| JP2014086306A (en) * | 2012-10-24 | 2014-05-12 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| CN104279482A (en) * | 2013-07-03 | 2015-01-14 | 斯坦雷电气株式会社 | Vehicle headlamp and vehicle headlamp system |
| JP2016004665A (en) * | 2014-06-16 | 2016-01-12 | 株式会社小糸製作所 | Electronic device |
| CN107076390A (en) * | 2014-09-16 | 2017-08-18 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| JP2017137026A (en) * | 2016-02-05 | 2017-08-10 | トヨタ自動車株式会社 | Vehicular headlight system |
| CN108966409A (en) * | 2017-05-26 | 2018-12-07 | 株式会社小糸制作所 | The lighting circuit of Vehicular lamp and light source |
| CN109556071A (en) * | 2017-09-25 | 2019-04-02 | 株式会社小糸制作所 | Headlight for automobile |
| CN109578932A (en) * | 2017-09-28 | 2019-04-05 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
| CN109780501A (en) * | 2017-11-14 | 2019-05-21 | 株式会社小糸制作所 | Headlight for automobile and its to light method of adjustment, to light adjustment mechanism |
| WO2019124188A1 (en) * | 2017-12-19 | 2019-06-27 | 株式会社小糸製作所 | Vehicle headlight |
| JP2019153484A (en) * | 2018-03-05 | 2019-09-12 | コイト電工株式会社 | Illumination device |
| CN109114522A (en) * | 2018-11-16 | 2019-01-01 | 湖南德霸照明制造有限公司 | Automobile-used fog lamp assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021166533A1 (en) | 2021-08-26 |
| JP2024133632A (en) | 2024-10-02 |
| JP7518892B2 (en) | 2024-07-18 |
| JPWO2021166533A1 (en) | 2021-08-26 |
| CN114651151A (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4071089B2 (en) | Vehicle headlamp | |
| CN105546447B (en) | Headlight for automobile | |
| JP6085944B2 (en) | Vehicle lighting | |
| EP2565524B1 (en) | Vehicle headlamp | |
| EP2719942A1 (en) | Optical unit | |
| JP2003068115A (en) | Luminaire for vehicle | |
| US11940104B2 (en) | Illumination device | |
| JP6340696B2 (en) | Lighting device and automobile | |
| JP2024133632A (en) | Lighting unit and vehicle lighting fixture | |
| JP2022127302A (en) | vehicle lighting device | |
| JP2007149552A (en) | Lighting device | |
| JP6119279B2 (en) | Vehicle headlamp | |
| CN109958967A (en) | Vehicle lamps | |
| JP2013137961A (en) | Vehicular headlight and vehicular headlight device | |
| JP7235387B2 (en) | fog lamp unit | |
| JP2013134970A (en) | Vehicle headlamp | |
| JP4644243B2 (en) | Vehicle headlamp | |
| KR20200143832A (en) | Lamp unit for vehicle | |
| JP7628050B2 (en) | Vehicle lighting fixtures | |
| EP3812652B1 (en) | Vehicular lamp | |
| WO2022210913A1 (en) | Lamp unit | |
| CZ2017734A3 (en) | Vehicle lighting equipment | |
| JP7101547B2 (en) | Vehicle headlights | |
| JP2022134640A (en) | vehicle lamp | |
| JP2025008495A (en) | Vehicle lighting fixtures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |