CN108954215A - A kind of optical module preventing bright spot - Google Patents
A kind of optical module preventing bright spot Download PDFInfo
- Publication number
- CN108954215A CN108954215A CN201810894805.3A CN201810894805A CN108954215A CN 108954215 A CN108954215 A CN 108954215A CN 201810894805 A CN201810894805 A CN 201810894805A CN 108954215 A CN108954215 A CN 108954215A
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- bright spot
- optical module
- preventing bright
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- 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)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to automobile lamp technical fields, especially a kind of optical module for preventing bright spot, including wiring board, LED light source and light guide, the LED light source is installed in the circuit board and is mounted on the head of light guide, the light guide end is elliposoidal structure, be wedge-shaped dentalation on the inside of the light guide back, the present invention can solve in the prior art light the problem of light guide end will form bright spot.
Description
Technical field
The present invention relates to automobile lamp technical field, specific field is a kind of optical module for preventing bright spot.
Background technique
Currently, light guide is the important spare part for propagating light, it can direct the light to luminous position in Signal Lamps on Vehicle.
Traditional light guide design, usual light guide end is planar structure, and when the end of light propagation to light guide, light can occur to reflect edge
The outgoing of some angle, i.e., out of specific angular range, will form a bright spot.
Summary of the invention
The purpose of the present invention is to provide a kind of optical module for preventing bright spot, with solve in the prior art light in light
Lead the problem of end will form bright spot.
To achieve the above object, the invention provides the following technical scheme: a kind of optical module for preventing bright spot, including
Wiring board, LED light source and light guide, the LED light source are installed in the circuit board and are mounted on the head of light guide, the light guide end
For elliposoidal structure, the light guide back inside is wedge-shaped dentalation.
Preferably, the light guide end surface is equipped with dermatoglyph.
Preferably, the light guide is transparent PC material or transparent PMMA material.
Preferably, the section of light guide is round or ellipse.
Preferably, the elliposoidal structure of the light guide end and the light-emitting surface tangent line of light guide are continuous.
Compared with prior art, the beneficial effects of the present invention are: in the application, light guide end uses elliposoidal structure, prevents
Light is stopped in the reflection of light guide end, the phenomenon that so as to avoid there are bright spots within the scope of certain angle；Light guide is integrally formed,
The cost of added parts is avoided, and easy to assembly.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is cross-sectional view of the Fig. 1 along line A-A；
Fig. 3 is the index path of light guide end in the prior art；
Fig. 4 is the index path of light guide end in the present invention.
In figure: 1. wiring boards, 2.LED light source, 3. light guides, 31. wedge-shaped dentalations, 32. light guide light-emitting surfaces, 33. ellipsoids
Shape structure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of optical module preventing bright spot, including line
The head of light guide 3 is installed in assist side 1 and are mounted on to road plate 1, LED light source 2 and light guide 3, LED light source 2, and 3 end of light guide is
Elliposoidal structure 33, for wedge-shaped dentalation 31 on the inside of 3 back of light guide, the light that LED light source 2 issues by light guide 3 incidence surface
Into light guide 3, a part of light is projected by the total reflection of wedge-shaped dentalation 31 at 3 back of light guide from light guide light-emitting surface 32, separately
A part of light, which is totally reflected after 3 internal transmission of light guide from 3 end of light guide, to be returned or diffusion is projected, specifically, can be with by Fig. 4
Find out, 3 end elliposoidal structure 33 of light guide can be with the diffusion angle of increasing light, and solving 3 end of conventional light guides has bright spot
Problem, traditional light guide 3 is as shown in Figure 3 (conventional light guides are 3 ' in Fig. 3).
Preferably, 3 end surface of light guide is equipped with dermatoglyph, dermatoglyph can further increasing light diffusion angle, prevent bright
The generation of point.
Further, light guide 3 is light-transmitting materials, and in the present embodiment, light guide 3 is transparent PC material or transparent
PMMA material.
Preferably, 3 section of light guide is round or ellipse, is conducive to the propagation of light.
Preferably, the elliposoidal structure 33 of 3 end of light guide and the light-emitting surface tangent line of light guide 3 are continuous, are conducive to the company of light
Resume and broadcast, light propagation to both junction when, be not in the biggish refraction of angle or reflection.
Working principle: the light that LED light source 2 issues enters light guide 3 by the incidence surface of light guide 3, and a part of light passes through light
The total reflection of wedge-shaped dentalation 31 for leading 3 backs is projected from light guide light-emitting surface 32, and another part light is after 3 internal transmission of light guide
It is totally reflected to return or spread from 3 end of light guide and project, not will form bright spot in 3 end of light guide.
A kind of optical module preventing bright spot provided by the present application, by the way that light guide end is changed to elliposoidal structure,
The diffusion angle of light is increased, solves the problems, such as that bright spot occurs in conventional light guides end, and the light guide one in the application
Forming avoids the cost of added parts, and assembles simple.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of optical module for preventing bright spot, including wiring board (1), LED light source (2) and light guide (3), feature exists
In: the head of light guide (3) is installed on assist side (1) and be mounted on to the LED light source (2), and light guide (3) end is ellipsoid
Shape structure (33), light guide (3) the back inside are wedge-shaped dentalation (31).
2. a kind of optical module for preventing bright spot according to claim 1, it is characterised in that: light guide (3) end
End surfaces are equipped with dermatoglyph.
3. a kind of optical module for preventing bright spot according to claim 1, it is characterised in that: the light guide (3) is
Transparent PC material or transparent PMMA material.
4. a kind of optical module for preventing bright spot according to claim 1, it is characterised in that: the light guide (3) is cut
Face is round or ellipse.
5. a kind of optical module for preventing bright spot according to claim 1, it is characterised in that: light guide (3) end
The elliposoidal structure (33) at end and the light-emitting surface tangent line of light guide (3) are continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810894805.3A CN108954215A (en) | 2018-08-08 | 2018-08-08 | A kind of optical module preventing bright spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810894805.3A CN108954215A (en) | 2018-08-08 | 2018-08-08 | A kind of optical module preventing bright spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108954215A true CN108954215A (en) | 2018-12-07 |
Family
ID=64468814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810894805.3A Pending CN108954215A (en) | 2018-08-08 | 2018-08-08 | A kind of optical module preventing bright spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108954215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947102A (en) * | 2020-09-11 | 2020-11-17 | 华域视觉科技(上海)有限公司 | Light guide end structure for preventing light guide end bright spots |
| JP2020205155A (en) * | 2019-06-14 | 2020-12-24 | スタンレー電気株式会社 | Vehicular lighting fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329020A (en) * | 2011-01-18 | 2013-09-25 | 法雷奥照明公司 | Optical unit for a signalling and/or lighting device |
| CN204164889U (en) * | 2014-08-27 | 2015-02-18 | 上海通用汽车有限公司 | A kind of automotive trim lamp |
| CN107642753A (en) * | 2016-07-22 | 2018-01-30 | 法雷奥北美有限公司 | There is the optical fiber optic panel of aesthetic appearance under OFF state |
| CN107975755A (en) * | 2017-12-26 | 2018-05-01 | 上海小糸车灯有限公司 | Car light is with deep camber light guide and car light optics module |
| CN208620283U (en) * | 2018-08-08 | 2019-03-19 | 常州星宇车灯股份有限公司 | A kind of optical module preventing bright spot |
-
2018
- 2018-08-08 CN CN201810894805.3A patent/CN108954215A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329020A (en) * | 2011-01-18 | 2013-09-25 | 法雷奥照明公司 | Optical unit for a signalling and/or lighting device |
| CN204164889U (en) * | 2014-08-27 | 2015-02-18 | 上海通用汽车有限公司 | A kind of automotive trim lamp |
| CN107642753A (en) * | 2016-07-22 | 2018-01-30 | 法雷奥北美有限公司 | There is the optical fiber optic panel of aesthetic appearance under OFF state |
| CN107975755A (en) * | 2017-12-26 | 2018-05-01 | 上海小糸车灯有限公司 | Car light is with deep camber light guide and car light optics module |
| CN208620283U (en) * | 2018-08-08 | 2019-03-19 | 常州星宇车灯股份有限公司 | A kind of optical module preventing bright spot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020205155A (en) * | 2019-06-14 | 2020-12-24 | スタンレー電気株式会社 | Vehicular lighting fixture |
| JP7347968B2 (en) | 2019-06-14 | 2023-09-20 | スタンレー電気株式会社 | Vehicle lights |
| CN111947102A (en) * | 2020-09-11 | 2020-11-17 | 华域视觉科技(上海)有限公司 | Light guide end structure for preventing light guide end bright spots |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |