CN110220155B - Lamp for vehicle - Google Patents
Lamp for vehicle Download PDFInfo
- Publication number
- CN110220155B CN110220155B CN201910148123.2A CN201910148123A CN110220155B CN 110220155 B CN110220155 B CN 110220155B CN 201910148123 A CN201910148123 A CN 201910148123A CN 110220155 B CN110220155 B CN 110220155B
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- Prior art keywords
- mounting
- light
- organic
- panel
- mounting body
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- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 230000004048 modification Effects 0.000 description 16
- 238000012986 modification Methods 0.000 description 16
- 238000013461 design Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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]
- F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- 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
- F21S41/17—Discharge 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
- 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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—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
-
- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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
- F21Y2115/20—Electroluminescent [EL] light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides an improved visibility. The present invention relates to a vehicle lamp including a lamp housing having an opening, a cover for closing the opening, an organic electroluminescent panel having a light emitting surface, and a mounting body for mounting the organic electroluminescent panel, wherein the mounting body is formed to be transparent. Thus, since the transparent mounting body is disposed, the mounting body is less likely to be conspicuous, and the presence of the mounting body is difficult to be recognized from the outside of the vehicle lamp, the visibility can be improved.
Description
Technical Field
The present invention relates to the technical field of vehicle lamps having an organic electroluminescent panel.
Background
Among the vehicle lamps, there are vehicle lamps that use an organic EL panel (organic electroluminescence panel) as a light source (for example, refer to patent document 1). The organic EL panel is a self-luminous type panel that emits light, and in recent years, technology related to the organic EL panel has been continuously improved, and development of a vehicle lamp using the organic EL panel as a light source has been continuously progressed.
The organic EL panel described above is disposed in a lamp room, which is an internal space formed by a lamp housing and a cover, in a state of being attached to a mounting body (a "support member" in patent document 1), for example.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open publication No. 2017-208226
Disclosure of Invention
Problems to be solved by the invention
In the vehicle lamp using the organic EL panel as the light source as described above, the organic EL panel is mounted on the mounting body and disposed, but since the organic EL panel is a planar light source, the occupied area of the organic EL panel in the lamp room tends to be larger than other light sources such as a light emitting Diode (LED: LIGHT EMITTING Diode) used as the light source, and accordingly, the size of the mounting body tends to be larger.
Therefore, the mounting body is easily made conspicuous in the lamp room, and there is a possibility that visibility of the vehicle lamp by a viewer may be lowered.
Accordingly, an object of the present invention is to improve visibility.
Means for solving the problems
In a first aspect, a vehicle lamp according to the present invention includes: a lamp housing having an opening; a cover that closes the opening; an organic electroluminescent panel having a light emitting surface; and a mounting body for mounting the organic electroluminescent panel, the mounting body being formed to be transparent.
Thus, the transparent mounting body is disposed in the internal space formed by the lamp housing and the cover, and thus the mounting body is less likely to become conspicuous.
In the vehicle lamp according to the present invention, it is preferable that the mounting body has an insertion hole, and the organic electroluminescent panel is mounted on the mounting body in a state in which a part of the organic electroluminescent panel is inserted into the insertion hole.
Thus, the organic electroluminescent panel is held by the mounting body so that a part of the organic electroluminescent panel is inserted into the insertion hole.
In the vehicle lamp according to the third aspect of the present invention, it is preferable that the vehicle lamp is provided with a light source that emits light, and the light emitted from the light source is transmitted through the mounting body.
Thus, the light emitted from the light source is transmitted through the mounting body, and the light emitted from the light source and the light emitted from the organic electroluminescent panel are irradiated to the outside.
In the vehicle lamp according to the fourth aspect of the present invention, it is preferable that at least a part of the mounting body is a light guide body that guides light emitted from the light source.
Thus, the light emitted from the light source is transmitted through a part of the mounting body and emitted.
In the fifth aspect of the present invention, in the vehicle lamp, it is preferable that the mounting body is provided with a mounting portion on which the organic electroluminescent panel is mounted, one surface of the mounting portion is formed as a mounting surface on which the organic electroluminescent panel is mounted, and the other surface of the mounting portion opposite to the mounting surface is formed as a light-emitting surface from which light emitted from the light source is emitted.
Thus, since the organic electroluminescent panel is mounted on the mounting portion and light is emitted from the light-emitting surface of the mounting portion, light can be emitted toward both sides of the mounting portion.
In the vehicle lamp according to the present invention, it is preferable that the organic electroluminescent panel is mounted on the mounting body in a curved state.
Thereby, light is emitted from the curved organic electroluminescent panel.
Effects of the invention
According to the present invention, since the transparent mounting body is disposed, the mounting body is less likely to be conspicuous, and the presence of the mounting body is difficult to be recognized from the outside of the vehicle lamp, so that the visibility can be improved.
Drawings
Fig. 1 and fig. 2 to 13 show an embodiment of the vehicle lamp according to the present invention, and the present figure is a rear view showing a state in which the vehicle lamp is disposed on a vehicle body.
Fig. 2 is a perspective view of the vehicle lamp shown with the cover removed, and fig. 3 to 5 are diagrams showing the configuration of the vehicle lamp.
Fig. 3 is a cross-sectional view showing the internal structure of the first lamp part.
Fig. 4 is a cross-sectional view showing the internal structure of the second lamp part.
Fig. 5 is a cross-sectional view showing an example of applying an antireflection film to a mounting body.
Fig. 6 is a cross-sectional view showing a first modification of the attachment body and the like.
Fig. 7 is a cross-sectional view showing a second modification of the attachment body and the like.
Fig. 8 is a perspective view showing a third modification of the attachment body and the like.
Fig. 9 is a side view showing a third modification of the attachment body and the like.
Fig. 10 is a side view showing a fourth modification of the attachment body and the like.
Fig. 11 is a side view showing a fifth modification of the attachment body and the like.
Fig. 12 is a perspective view showing a sixth modification of the attachment body and the like.
Fig. 13 is a plan view showing a sixth modification of the attachment body and the like.
Description of the reference numerals
1: A lamp for a vehicle; 4: a lamp housing; 5: a cover; 7: a mounting body; 12: a mounting part; 12a: a mounting surface; 13: a first organic EL panel; 13a: a light emitting surface; 14: a lamp housing; 15: a cover; 17: a mounting body; 19: a first mounting portion; 19a: a mounting surface; 21: a second mounting portion; 21a: a mounting surface; 22: a second organic EL panel; 22a: a light emitting surface; 23: a third organic EL panel; 23a: a light emitting surface; 7a: an insertion hole; 27: a mounting body; 28b: a light-emitting surface; 29: a first mounting portion; 29a: a mounting surface; 30: a second mounting portion; 30a: a mounting surface; 31: an organic EL panel; 31a: a light emitting surface; 32: a light source; 35: a light source; 38: a light source; 39: a mounting body; 41: a mounting part; 41a: a mounting surface; 41b: a light-emitting surface; 42: an organic EL panel; 42a: a light emitting surface; 43: a light source.
Detailed Description
Hereinafter, a mode for implementing the vehicle lamp of the present invention will be described with reference to the drawings.
In the embodiments described below, the vehicle lamp according to the present invention is applied to a vehicle lamp such as a tail lamp disposed at a rear end portion of a vehicle body. The present invention can be widely applied to various vehicle lamps such as a headlight, a taillight, a width light, a turn signal light, a brake light, a daytime running light (daytime running lamp), a turn light (warning light), a hazard lamp, a position light, a reversing light, a fog light, and a combination light of these lamps.
In the following description, the direction of the front-rear, up-down, left-right is set in a state where the vehicle lamp is disposed at the rear end portion of the vehicle body. However, the directions of the front, rear, up, down, left and right shown below are set for convenience of explanation, and the implementation of the present invention is not limited to the above directions. In the following, an example of a vehicle lamp using an organic electroluminescent panel as a light source is shown, but the organic electroluminescent panel includes an organic electroluminescent display that displays characters, graphics, and the like.
Integral structure of vehicle lamp
First, the overall configuration of the vehicle lamp 1 will be described (see fig. 1 to 5).
The vehicle lamp 1, 1 is disposed, for example, at both right and left end portions of a rear end portion of the vehicle body 100 (see fig. 1). The vehicle lamp 1 is configured by, for example, a first lamp portion 2 disposed on a non-movable portion such as a main body portion 101 of a vehicle body 100 and a second lamp portion 3 disposed on a movable portion such as a trunk lid 102.
In the present invention, the vehicle lamp may be constituted by only the first lamp portion 2, or may be constituted by only the second lamp portion 3.
As described above, in the vehicle lamp 1, the first lamp portion 2 is disposed on the main body portion 101 and the second lamp portion 3 is disposed on the trunk lid 102, and the positions of the first lamp portion 2 and the second lamp portion 3 are set so as to abut against each other in a state where the trunk lid 102 is closed.
In the above, the example was described in which the first lamp portion 2 is disposed on the non-movable portion such as the main body portion 101 and the second lamp portion 3 is disposed on the movable portion such as the trunk lid 102, but conversely, the first lamp portion 2 may be disposed on the movable portion such as the trunk lid 102 and the second lamp portion 3 may be disposed on the non-movable portion such as the main body portion 101. Further, both the first lamp portion 2 and the second lamp portion 3 may be disposed on the movable portion, or both the first lamp portion 2 and the second lamp portion 3 may be disposed on the non-movable portion.
The first lamp unit 2 includes a lamp housing 4 that opens rearward, and a cover 5 that closes the opening of the lamp housing 4 (see fig. 2 and 3). The lamp housing 6 is constituted by the lamp housing 4 and the cover 5, and an inner space of the lamp housing 6 is formed as a lamp chamber 6a.
A mounting body 7 is disposed in the lamp chamber 6a, and the mounting body 7 is mounted in the lamp chamber 6a, for example, on the lamp housing 4. The mounting body 7 is formed transparent, and has a base portion 8 located on the front side, and mounting portions 12, 12 projecting obliquely upward and rearward from the base portion 8, respectively.
The base portion 8 is formed in a stepped shape, and the upper stage portion 9, the middle stage portion 10, and the lower stage portion 11 are continuous in this order from above.
The mounting portions 12, 12 are formed in a horizontally long flat plate shape, and protrude from rear end portions of the upper stage portion 9, the middle stage portion 10, and the lower stage portion 11, respectively. The lower surface of the mounting portion 12 is formed as a mounting surface 12a.
First organic EL panels (organic EL panels) 13, 13 are attached to the attachment surfaces 12a, 12a of the attachment body 7, respectively, by, for example, adhesion or the like.
The first organic EL panels 13, 13 are larger than the mounting surfaces 12a, 12a by one turn, and a part of their outer peripheral portions protrude from the mounting surfaces 12a, 12a in a state of being mounted on the mounting portions 12, 12.
Since a part of the outer peripheral portion of the first organic EL panel 13 protrudes from the mounting surface 12a, the mounting body 7 is not easily visually recognized from the outside, and thus visibility is improved. In addition, by forming the first organic EL panel 13 to a size in which a part of the outer peripheral portion protrudes from the mounting surface 12a, the irradiation range of light emitted from the first organic EL panel 13 can be enlarged, and an improvement in luminance can be achieved.
The first organic EL panel 13 is formed in a flat plate shape, and is formed as a light emitting surface 13a on the side opposite to the surface mounted on the mounting surface 12 a.
In the first lamp unit 2 configured as described above, the light emitted from the first organic EL panels 13, 13 is transmitted through the cover 5 and is mainly emitted rearward.
In the first lamp unit 2, at least a part of each surface of the lamp housing 4 and the mounting body 7 may be formed as a reflecting surface, and in this case, a part of the light emitted from the first organic EL panels 13, 13 is reflected by the reflecting surface and mainly irradiated backward.
The second lamp unit 3 includes a lamp housing 14 that opens rearward, and a cover 15 that closes the opening of the lamp housing 14 (see fig. 2 and 4). The lamp housing 14 and the cover 15 constitute a lamp housing 16, and an inner space of the lamp housing 16 is formed as a lamp chamber 16a.
The mounting body 17 is disposed in the lamp chamber 16a, and the mounting body 17 is mounted in the lamp chamber 16a, for example, on the lamp housing 14. The mounting body 17 is formed transparent, and has a base portion 18 located on the front side, a first mounting portion 19 protruding rearward from a position near the lower end of the base portion 18, a connecting portion 20 protruding obliquely upward and rearward from a position near the rear end of the first mounting portion 19, and a second mounting portion 21 continuous with the upper end of the connecting portion 20.
The base portion 18 is formed in a flat plate shape which is long in the front-rear direction.
The first mounting portion 19 is formed in a plate shape extending in the left-right direction and facing in the up-down direction, and the rear surface is formed as a mounting surface 19a. The mounting surface 19a is oriented obliquely downward and rearward.
The second attachment portion 21 protrudes obliquely downward and rearward from the upper end portion of the coupling portion 20, and an upper surface is formed as an attachment surface 21a. The mounting surface 21a is gently curved so that the middle portion in the front-rear direction bulges obliquely upward and rearward.
A second organic EL panel (organic EL panel) 22 is attached to the attachment surface 19a of the first attachment portion 19, for example, by adhesion or the like.
The second organic EL panel 22 is larger than the mounting surface 19a by one turn, and at least a part of its outer peripheral portion protrudes from the mounting surface 19a in a state of being mounted on the first mounting portion 19.
Since at least a part of the outer peripheral portion of the second organic EL panel 22 protrudes from the mounting surface 19a, the mounting body 17 is not easily visually recognized from the outside, and thus visibility is improved. In addition, by forming the second organic EL panel 22 to have a size in which at least a part of its outer peripheral portion protrudes from the mounting surface 19a, the irradiation range of light emitted from the second organic EL panel 22 can be enlarged, and an improvement in luminance can be achieved.
The surface of the second organic EL panel 22 opposite to the surface attached to the attachment surface 19a forms a light emitting surface 22a.
A third organic EL panel (organic EL panel) 23 is attached to the attachment surface 21a of the second attachment portion 21, for example, by adhesion or the like.
The third organic EL panel 23 is larger than the mounting surface 21a by one turn, and at least a part of its outer peripheral portion protrudes from the mounting surface 21a in a state of being mounted on the second mounting portion 21.
Since at least a part of the outer peripheral portion of the third organic EL panel 23 protrudes from the mounting surface 21a, the mounting body 17 is not easily visually recognized from the outside, and thus the visibility is improved. In addition, by forming at least a portion of the outer peripheral portion of the third organic EL panel 23 to protrude from the mounting surface 21a, the irradiation range of light emitted from the third organic EL panel 23 can be enlarged, and an improvement in luminance can be achieved.
The surface of the third organic EL panel 23 opposite to the surface attached to the attachment surface 21a forms a light emitting surface 23a. The third organic EL panel 23 is attached to the second attachment portion 21 in a state in which an intermediate portion of the light emitting surface 23a in the front-rear direction is gently curved so as to protrude obliquely upward and rearward.
In a state where the second organic EL panel 22 and the third organic EL panel 23 are mounted on the first mounting portion 19 and the second mounting portion 21, respectively, the upper end portion of the second organic EL panel 22 and the lower end portion of the third organic EL panel 23 overlap in the front-rear direction.
By providing the upper end portion of the second organic EL panel 22 and the lower end portion of the third organic EL panel 23 in a state of being overlapped in the front-rear direction in this way, the mounting body 17 is not easily visually recognized from the outside, and thus the visibility is improved.
In the second lamp unit 3 configured as described above, the light emitted from the second organic EL panel 22 and the third organic EL panel 23 passes through the cover 15 and is mainly emitted rearward.
In the second lamp unit 3, at least a part of the inner surface of the lamp housing 14 and each surface of the mounting body 17 may be formed as a reflecting surface, and in this case, a part of the light emitted from the second organic EL panel 22 and the third organic EL panel 23 is reflected by the reflecting surface and mainly irradiated to the rear.
As described above, in the vehicle lamp 1, since the mounting body 7 and the mounting body 17 are formed transparent, the mounting body 7 and the mounting body 17 are less likely to be noticeable, and the presence of the mounting body 7 and the mounting body 17 is less likely to be recognized from the outside of the vehicle lamp 1, so that improvement in visibility can be achieved.
In particular, since the mounting body 7 and the mounting body 17 are less likely to become conspicuous, the second organic EL panel 22 and the third organic EL panel 23 are easily recognized as a suspended state, and thus improvement in design and visibility can be achieved.
Further, since the mounting body 7 and the mounting body 17 are formed to be transparent, reflection of light is less likely to occur on the surfaces of the mounting body 7 and the mounting body 17, light affecting light distribution is less likely to occur, and desired light distribution can be ensured.
Further, in the second lamp portion 3, since the third organic EL panel 23 is mounted on the mounting body 17 in a curved state, light is emitted from the curved third organic EL panel 23, and a desired light distribution can be ensured while a sufficient light irradiation range is ensured.
In addition, although the example in which the third organic EL panel 23 is bent is shown in the above, the first organic EL panel 13 and the second organic EL panel 22 may be mounted on the mounting body 7 and the mounting body 17, respectively, in a bent state.
In the above, although the example in which three organic EL panels are arranged in the first lamp unit 2 and two organic EL panels are arranged in the second lamp unit 3 has been described, the number of organic EL panels arranged in the first lamp unit 2 and the second lamp unit 3 may be one or a plurality, and the number thereof may be any number.
Further, an antireflection treatment such as an antireflection film for preventing reflection of light may be applied to the mounting body 7 and the mounting body 17 (see fig. 5). For example, the reflection preventing films 24, … may be applied to the rear surface 9a of the upper stage 9, the rear surface 10a of the middle stage 10, the upper surface 10b of the middle stage 10, the rear surface 11a of the lower stage 11, and the upper surface 11b of the lower stage 11, respectively, using the mounting body 7 as an example. The antireflection films 24, … may be applied to the upper surfaces 12b, 12b and the like of the mounting portions 12, 12 located at the center in the vertical direction and the lowermost side, respectively.
By applying the reflection preventing treatment to the mounting bodies 7 and 17 in this manner, the light emitted from the first, second, and third organic EL panels 13, 22, and 23 cannot be reflected on the surfaces subjected to the reflection preventing treatment, and therefore the mounting bodies 7 and 17 are less noticeable, and further improvement in visibility can be achieved.
Modified examples of mounting body and the like
Next, various modifications of the mounting body and the like will be described (see fig. 6 or 12).
In the following modifications, when the same configuration as the mounting body 7, the mounting body 17, the first organic EL panel 13, the second organic EL panel 22, or the third organic EL panel 23 is adopted, the same reference numerals as those described above are given, and detailed description thereof is omitted.
The first modification is an example in which an organic EL panel is inserted into the mounting body 7 and held by the mounting body (see fig. 6).
Projections 25, 25 projecting obliquely upward and rearward from the base portion 8 are provided on the lower sides of the mounting portions 12, 12 of the mounting body 7, respectively, and the projecting amounts of the projections 25, 25 projecting from the base portion 8 are set smaller than the projecting amounts of the mounting portions 12, 12 projecting from the base portion 8. The space between the mounting portion 12 and the protruding portion 25 is formed as an insertion hole 7a.
A part of the outer peripheral portion of the first organic EL panel 13 is inserted into the insertion hole 7a and attached to the attachment surface 12a by, for example, adhesion or the like.
By attaching a part of the first organic EL panel 13 to the mounting body 7 in a state of being inserted into the insertion hole 7a in this way, a part of the first organic EL panel 13 is inserted into the insertion hole 7a and held by the mounting body 7, and thus, it is possible to achieve improvement in operability in terms of attachment operation of the first organic EL panel 13 to the mounting body 7.
In addition, a constitution having an insertion hole may be applied to the mounting body 17.
The second modification is an example in which the connecting portion 20 is coupled to the first mounting portion 19 to form the mounting body 17 (see fig. 7).
The first mounting portion 19 has a coupling hole 19b that opens upward. The coupling portion 20 and the second mounting portion 21 are provided as portions of the member 26 independent of the base portion 18 and the first mounting portion 19, and the coupling portion 20 is inserted into the coupling hole 19b and the member 26 is coupled to the first mounting portion 19 to construct the mounting body 17.
In the above-described configuration, the first mounting portion 19 to which the second organic EL panel 22 is mounted in advance is coupled to the member 26 to which the third organic EL panel 23 is mounted in advance, so that the mounting body 17 to which the second organic EL panel 22 and the third organic EL panel 23 are mounted is configured. Therefore, it is not necessary to mount the second organic EL panel 22 and the third organic EL panel 23 on the same member, and it is possible to improve the operability in the mounting operation of the second organic EL panel 22 and the third organic EL panel 23 on the mounting body 17.
In particular, in a configuration in which a part of the second organic EL panel 22 and a part of the third organic EL panel 23 overlap in the front-rear direction, interference may occur in both mounting operations of the second organic EL panel 22 and the third organic EL panel 23. Accordingly, by setting the configuration in which the second organic EL panel 22 and the third organic EL panel 23 are mounted on separate members as described above, the mounting operation of the second organic EL panel 22 and the third organic EL panel 23 on the mounting body 17 can be easily and smoothly performed.
In addition, a structure in which a separate member and another member are combined may be applied to the mounting body 7.
The third modification is an example in which other light sources are applied to the organic EL panel (see fig. 8 and 9).
In the above example, the mounting body 27 is used, for example. The mounting body 27 is formed transparent, and has a substantially flat plate-shaped base portion 28 formed in a horizontal length in the up-down direction, a first mounting portion 29 protruding obliquely upward and rearward from the front end portion of the base portion 28, and a second mounting portion 30 protruding obliquely downward and rearward from the front end portion of the base portion 28.
The front surface of the base portion 28 is formed as a light-in surface 28a, and the rear surface of the base portion 28 is formed as a light-out surface 28b. An outer peripheral surface of the base portion 28 between the light incident surface 28a and the light emergent surface 28b is formed as a reflecting surface 28c. The reflecting surface 28c has a function of reflecting (totally reflecting) the light transmitted through the base portion 28 on the inner surface, and for example, a stepped shape for reflecting the light on the inner surface may be formed on the reflecting surface 28c.
The first mounting portion 29 and the second mounting portion 30 are gently curved such that the central portions thereof in the front-rear direction are raised substantially rearward, and the surfaces thereof facing the base portion 28 side are formed as mounting surfaces 29a, 30a, respectively.
The organic EL panels 31, 31 are attached to the attachment surface 29a of the first attachment portion 29 and the attachment surface 30a of the second attachment portion 30, respectively, for example, by adhesion or the like.
The organic EL panels 31, 31 are larger than the mounting surfaces 29a, 30a by one turn, and a part of their outer peripheral portions protrude from the mounting surfaces 29a and 30a, respectively, in a state of being mounted on the first mounting portion 29 and the second mounting portion 30.
The surfaces of the organic EL panels 31, 31 opposite to the surfaces attached to the attachment surfaces 29a, 30a are formed as light emitting surfaces 31a, respectively. The organic EL panels 31, 31 are attached to the first attachment portion 29 and the second attachment portion 30 in a state in which the central portions thereof in the front-rear direction are gently curved so as to be convex substantially rearward, for example. The lower end of the organic EL panel 31 attached to the first attaching portion 29 is flush with the rear end of the upper surface of the base portion 28, and the upper end of the organic EL panel 31 attached to the second attaching portion 30 is flush with the rear end of the lower surface of the base portion 28.
A light source 32 is disposed in front of the mounting body 27 at a position facing the light incident surface 28 a. The light source 32 is disposed on a disposition member, for example, not shown. As the light source 32, for example, a light emitting Diode (LED: LIGHT EMITTING Diode) is used.
In the above configuration, the light emitted from the organic EL panels 31 and 31 is transmitted through the cover and is mainly emitted rearward. The light emitted from the light source 32 enters the base portion 28 from the light entrance surface 28a, is reflected on the inner surface by the reflecting surface 28c, is transmitted toward the light exit surface 28b, and is emitted from the light exit surface 28b and is emitted rearward through the cover.
Since the light emitted from the light source 32 passes through the base portion 28 of the mounting body 27 in this way, the light emitted from the light source 32 and the light emitted from the organic EL panels 31, 31 are irradiated to the outside, and therefore the light emitted from the organic EL panels 31, 31 and the light emitted from the light source 32 are irradiated as illumination light, the brightness can be improved, the degree of freedom of design can be improved, and the required light distribution can be ensured.
Further, since the base portion 28, which is a part of the mounting body 27, functions as a light guide that guides the light emitted from the light source 32, the light emitted from the light source 32 is guided and emitted through a part of the mounting body 27, and thus the number of components and the degree of freedom in design can be reduced by improving the functionality of the mounting body 27.
Further, since the organic EL panels 31, 31 are mounted on the mounting body 27 in a curved state, light is emitted from the curved organic EL panels 31, and a desired light distribution can be ensured while a sufficient light irradiation range is ensured.
The fourth modification is an example in which, in the configuration using the mounting body 7, another light source is used in addition to the organic EL panel (see fig. 10).
On the rear surface of the base portion 8 of the mounting body 7, lens steps 8a, 8a are formed so as to be separated up and down. The lens steps 8a, 8a are, for example, diffusion steps.
A support plate 33 is disposed on the front side of the mounting body 7 at a position facing the base portion 8. The support plate 33 has flat plate-like vertical portions 33a, 33a extending in the front-rear direction. Substrates 34 and 34 having circuit patterns and light sources 35, … mounted on the rear surfaces of the substrates 34 and 34 are disposed on the rear surfaces of the vertical portions 33a and 33a, respectively. As the light source 35, for example, a light emitting diode is used.
In the above configuration, the light emitted from the first organic EL panels 13, 13 passes through the cover 5 and is mainly emitted rearward. Light emitted from the light sources 35, … is incident on the base portion 8 of the mounting body 7, is diffused by the lens steps 8a, and is emitted rearward through the cover 5.
Since the light emitted from the light sources 35, … passes through the base portion 8 of the mounting body 7 in this way, the light emitted from the light sources 35, … and the light emitted from the first organic EL panel 13 are irradiated to the outside, and therefore the light emitted from the first organic EL panel 13 and the light emitted from the light sources 35, … are irradiated as illumination light, whereby the improvement of the luminance can be achieved, the degree of freedom of design can be improved, and the required light distribution can be ensured.
The fifth modification is an example in which, in the configuration using the mounting body 17, other light sources are used in addition to the organic EL panel (see fig. 11).
On the rear surface of the base portion 18 of the mounting body 17, lens steps 18a, 18a are formed above and below the first mounting portion 19. The lens steps 18a, 18a are, for example, diffusion steps.
A support plate 36 is disposed on the front side of the mounting body 17 at a position facing the base portion 18. The back surface of the support plate 36 is provided with: substrates 37, 37 having circuit patterns in front of the lens steps 18a, respectively; and light sources 38, … mounted on the rear surfaces of the substrates 37, 37. As the light source 38, for example, a light emitting diode is used.
In the above configuration, the light emitted from each of the second organic EL panel 22 and the third organic EL panel 23 passes through the cover 15 and is mainly emitted rearward. Light emitted from the light sources 38, … is incident on the base portion 8 of the mounting body 7, is diffused by the lens steps 18a, and is emitted rearward through the cover 15.
Since the light emitted from the light sources 38, … passes through the base portion 18 of the mounting body 17 in this way, the light emitted from the light sources 38, … and the light emitted from the second organic EL panel 22 and the third organic EL panel 23 are irradiated to the outside, and therefore the light emitted from the second organic EL panel 22 and the third organic EL panel 23 and the light emitted from the light sources 38, … are irradiated as illumination light, and thus the luminance can be improved, and the degree of freedom in design can be improved, and the required light distribution can be ensured.
The sixth modification is an example in which other light sources are used in addition to the organic EL panel (see fig. 12 and 13).
In the above example, the attachment body 39 is used, for example. The mounting body 39 is formed transparent, and has: a base portion 40 formed in a substantially flat plate shape and having a lateral length in the front-rear direction; and an attachment portion 41 protruding substantially rearward from the base portion 40. Further, a plurality of mounting portions 41 are provided at intervals in the left-right direction.
A portion of the front surface of the base portion 40 is formed as a light incident surface 40a. The base portion 40 may be formed in a flat plate shape, and the middle portion in the lateral direction may be gently curved so as to protrude forward or backward.
The mounting portion 41 is formed in a shape in which the width thereof decreases in the up-down direction with the rearward direction, for example, and is gently curved so that the curved direction is one of the right-left direction. The mounting portion 41 is slightly inclined such that its rear end is located closer to the side than its front end. One surface of the mounting portion 41 in the left-right direction (thickness direction) is formed on the mounting surface 41a, and the other surface of the mounting portion 41 in the left-right direction is formed on the light-emitting surface 41b.
The surface of the mounting portion 41 other than the light-emitting surface 41b is formed as a reflecting surface 41c for reflecting (totally reflecting) the light transmitted through the inside of the mounting portion 41. The reflecting surface 41c may have a stepped shape for reflecting light on the inner surface, for example.
The organic EL panel 42 is attached to the attachment surface 41a of the attachment portion 41, for example, by adhesion or the like.
The organic EL panel 42 is larger than the mounting surface 41a by one turn, and a part of its outer peripheral portion protrudes from the mounting surface 41a in a state of being mounted on the mounting portion 41.
The surface of the organic EL panel 42 opposite to the surface attached to the attachment surface 41a forms a light emitting surface 42a. The organic EL panel 42 is attached to the attachment portion 41 in a state of being gently bent so that the bending direction is one of the left and right directions.
A light source 43 is disposed in front of the mounting body 39 at a position facing the light incident surface 40 a. The light source 43 is disposed on a disposition member, for example, not shown. As the light source 43, for example, a light emitting Diode (LED: LIGHT EMITTING Diode) is used.
In the above-described configuration, the light emitted from the organic EL panel 42 is transmitted through the cover and is mainly emitted rearward. The light emitted from the light source 43 enters the base portion 40 from the light entrance surface 40a, is reflected on the inner surface by the reflecting surface 41c, is transmitted through the mounting portion 41, and is emitted from the light exit surface 40b and is emitted rearward through the cover.
In order to irradiate the light emitted from the light emitting surface 42a of the organic EL panel 42 and the light emitting surface 41b of the mounting portion 41 rearward, for example, a reflection process or the like may be applied to the rear surface of the base portion 40 so that a part of the light emitted from the light emitting surface 42a and the light emitting surface 41b is reflected by the rear surface of the base portion 40.
Since the light emitted from the light source 43 passes through the mounting body 39 as described above, the light emitted from the light source 43 and the light emitted from the organic EL panel 42 are irradiated to the outside, and therefore the light emitted from the organic EL panel 42 and the light emitted from the light source 43 are irradiated as illumination light, whereby the luminance can be improved, the degree of freedom of design can be improved, and the required light distribution can be ensured.
Further, since the mounting portion 41, which is a part of the mounting body 39, functions as a light guide that guides the light emitted from the light source 43, the light emitted from the light source 43 is guided and emitted to a part of the mounting body 39, and thus the number of components and the degree of freedom in design can be reduced by improving the functionality of the mounting body 39.
Further, one surface of the mounting portion 41 is formed as a mounting surface 41a on which the organic EL panel 42 is mounted, and the other surface of the mounting portion 41 opposite to the mounting surface 41a is formed as a light-emitting surface 41b that emits light emitted from the light source 43.
Therefore, since the organic EL panel 42 is mounted on the mounting portion 41 and light is emitted from the light-emitting surface 41b of the mounting portion 41, the light can be emitted toward both sides of the mounting portion 41, and thus the degree of freedom in design can be improved and the irradiation range of the light can be sufficiently ensured.
Further, since the light is recognized as being emitted from both surfaces of the mounting portion 41, the viewer can recognize the three-dimensional light-emitting state, and the design can be improved.
Further, since the organic EL panel 42 is mounted to the mounting body 39 in a curved state, light is emitted from the curved organic EL panel 42, and a desired light distribution can be ensured while a sufficient light irradiation range is ensured.
Further, the mounting portion 41 may be formed as a part of the mounting surface 41a and the reflecting surface 41c, and a stepped shape for reflecting the light on the inner surface is formed on the mounting surface 41a, but the surface of the organic EL panel 42 mounted on the mounting portion 41 on the opposite side to the light emitting surface 42a may be formed as a reflecting surface, so that the light incident on the mounting portion 41 is reflected on the inner surface.
Claims (7)
1. A lamp for a vehicle, wherein,
The vehicle lamp includes:
a lamp housing having an opening;
A cover that closes the opening;
an organic electroluminescent panel having a light emitting surface; and
A mounting body for mounting the organic electroluminescent panel,
The mounting body is formed to be transparent,
The mounting body is provided with a mounting part for mounting the organic electroluminescent panel,
One surface of the mounting part is formed as a mounting surface for mounting the organic electroluminescent panel,
The mounting surface is located on the opposite side of the light exit surface with respect to the organic electroluminescent panel,
The organic electroluminescent panel is larger than the mounting surface by one turn, and at least a part of its outer peripheral portion protrudes from the mounting surface in a state of being mounted to the mounting portion, respectively, whereby it is difficult to recognize the presence of the mounting body from outside the vehicle lamp.
2. The vehicular lamp according to claim 1, wherein,
An insertion hole is formed in the mounting body,
The organic electroluminescent panel is mounted to the mounting body in a state in which a part thereof is inserted into the insertion hole.
3. The vehicular lamp according to claim 1 or 2, wherein,
At least a portion of the inner surface of the lamp housing and each face of the mounting body is formed as a reflective surface.
4. The vehicular lamp according to claim 1 or 2, wherein,
The vehicle lamp is provided with a light source for emitting light,
Light emitted from the light source is transmitted through the mounting body.
5. The vehicular lamp according to claim 4, wherein,
At least a part of the mounting body is provided as a light guide body for guiding light emitted from the light source.
6. The vehicular lamp according to claim 5, wherein,
The other surface of the mounting portion opposite to the mounting surface is formed to be a light-emitting surface that emits light emitted from the light source.
7. The vehicular lamp according to claim 1 or 2, wherein,
The organic electroluminescent panel is mounted to the mounting body in a bent state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-036612 | 2018-03-01 | ||
| JP2018036612 | 2018-03-01 |
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| Publication Number | Publication Date |
|---|---|
| CN110220155A CN110220155A (en) | 2019-09-10 |
| CN110220155B true CN110220155B (en) | 2024-06-04 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910148123.2A Active CN110220155B (en) | 2018-03-01 | 2019-02-28 | Lamp for vehicle |
| CN201920250847.3U Active CN209926253U (en) | 2018-03-01 | 2019-02-28 | Vehicle lamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920250847.3U Active CN209926253U (en) | 2018-03-01 | 2019-02-28 | Vehicle lamp |
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| Country | Link |
|---|---|
| CN (2) | CN110220155B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220155B (en) * | 2018-03-01 | 2024-06-04 | 株式会社小糸制作所 | Lamp for vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387407A (en) * | 2014-08-29 | 2016-03-09 | 株式会社小糸制作所 | Vehicular lamp |
| JP2017220309A (en) * | 2016-06-03 | 2017-12-14 | 株式会社小糸製作所 | Light emitting device |
| CN209926253U (en) * | 2018-03-01 | 2020-01-10 | 株式会社小糸制作所 | Vehicle lamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016058136A (en) * | 2014-09-05 | 2016-04-21 | 株式会社小糸製作所 | Vehicular lighting tool and light-emitting unit |
-
2019
- 2019-02-28 CN CN201910148123.2A patent/CN110220155B/en active Active
- 2019-02-28 CN CN201920250847.3U patent/CN209926253U/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387407A (en) * | 2014-08-29 | 2016-03-09 | 株式会社小糸制作所 | Vehicular lamp |
| JP2017220309A (en) * | 2016-06-03 | 2017-12-14 | 株式会社小糸製作所 | Light emitting device |
| CN209926253U (en) * | 2018-03-01 | 2020-01-10 | 株式会社小糸制作所 | Vehicle lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN209926253U (en) | 2020-01-10 |
| CN110220155A (en) | 2019-09-10 |
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