CN112303589A - Light guide for automobile signal lamp - Google Patents
Light guide for automobile signal lamp Download PDFInfo
- Publication number
- CN112303589A CN112303589A CN201910705368.0A CN201910705368A CN112303589A CN 112303589 A CN112303589 A CN 112303589A CN 201910705368 A CN201910705368 A CN 201910705368A CN 112303589 A CN112303589 A CN 112303589A
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- end part
- optical surface
- visual angle
- 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
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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
- F21S43/20—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
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- 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]
Abstract
The invention relates to the technical field of lighting for vehicles, in particular to a light guide for an automobile signal lamp, which comprises a light guide and a light source, wherein the light guide comprises an end part I and an end part II, the end part I and the end part II of the light guide are overlapped front and back when being observed from a light guide light emitting normal visual angle, and no part of the end part I is connected with the end part II; the inner side of the light guide is provided with an optical surface structure, and the optical surface structures at the end part I and the end part II are overlapped front and back when observed from a light-emitting normal visual angle of the light guide; the light source is arranged below the end portion I and the end portion II. The light guide is a light guide, and the light enters from two end parts of the light guide, so that the annular lighting appearance of the light guide can be realized, the lighting uniformity is good, no bright spots or dark areas exist, the number of assembly parts can be reduced, and the production cost can be reduced.
Description
Technical Field
The invention relates to the technical field of vehicle lighting, in particular to a light guide for an automobile signal lamp.
Background
With the progress of LED technology, LED light sources are widely applied in the automobile lamp industry at present, more and richer appearance changes and applications are derived from the luminous models of the automobile lamps due to market competition and the needs of consumer groups, and different design structures are more diversified in the automobile lamp models. Taking a daytime running signal lamp as an example, the light guide is matched with the LED light source, so that the uniform lighting effect with various appearance shapes can be realized.
In the prior art, in order to realize a ring-shaped or round-shaped profile, which requires a light guide to cooperate with the LED, the optical solutions realized include the following two:
(1) the two light guides are matched with the LED to realize the shape of a ring or a circle;
(2) one light guide is fitted with the LED and the ends are interconnected to form a ring or a ring-around shape.
It follows that if a ring-shaped form is to be achieved, two light guides in cooperation with the LEDs can be achieved; this can be achieved using a single light guide with end interconnections, but this can produce bright spots or dark areas with poor illumination.
Disclosure of Invention
The invention solves the defects in the related technology and provides the light guide for the automobile signal lamp, which can realize the annular lighting appearance of one light guide, has good lighting uniformity and has no lighting bright spots or dark areas.
In order to solve the technical problems, the invention is realized by the following technical scheme: a light guide for an automotive signaling light, comprising:
the light guide comprises an end part I and an end part II, and when the light guide is observed from a light-emitting normal visual angle, the end part I and the end part II of the light guide are overlapped front and back, and no part of the end part I and the end part II is connected with each other; the inner side of the light guide is provided with an optical surface structure, and the optical surface structures at the end part I and the end part II are overlapped front and back when observed from a light-emitting normal visual angle of the light guide;
a light source disposed below end I and end II.
Preferably, the light emitted by the light source is transmitted out of the molding normal by refraction and reflection.
Preferably, the light rays emanating from the shaping normal may form a complete ring or a circle around the light emitting area.
Preferably, the optical surface structure is a light guide tooth.
Compared with the prior art, the invention has the beneficial effects that: the light guide has two end parts, the two end parts are overlapped front and back when observed from the light-emitting normal visual angle of the light guide, and light enters through the two end parts of the light guide, so that the annular lighting appearance of one light guide can be realized, the lighting uniformity is good, and no bright spots or dark areas exist; and the number of assembly parts can be reduced, and the production cost can be reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of a light guide of the present invention;
fig. 3 is a schematic view of the light propagation of the present invention.
In the figure:
1. light guide, 2, end I, 3, end II, 4, light source, 5, optical surface structure.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 2, a light guide for a signal lamp of an automobile comprises a light guide 1 capable of being fixed on a vehicle body, the light guide 1 has two ends, i.e., an end i 2 and an end ii 3, and light sources 4 are arranged below the end i 2 and the end ii 3; when the light guide 1 is observed from a light emitting normal visual angle, the end part I2 and the end part II 3 of the light guide 1 are overlapped front and back, and no part is connected with each other near the end part I2 and the end part II 3; the inner side of the light guide 1 is provided with an optical surface structure 5, and the optical surface structure 5 is a light guide tooth; when the light guide 1 is observed from the light emitting normal visual angle, the optical surface structures 5 near the end I2 and the end II 3 are overlapped front and back; as shown in fig. 3, the light emitted by the light source 4 propagates inside the light guide by reflection and propagates out of the shaping normal by refraction, forming a complete ring or a ring around the light emitting area, without producing bright spots or dark areas.
The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (4)
1. A light guide for a signaling light of an automobile, comprising:
the light guide (1), the light guide (1) includes end I (2) and end II (3), from the light-emitting normal visual angle of light guide (1) observation, end I (2) and end II (3) of light guide (1) overlap front and back, end I (2) and end II (3) do not have any position interconnect; an optical surface structure (5) is arranged on the inner side of the light guide (1), and the optical surface structures (5) at the end part I (2) and the end part II (3) are overlapped front and back when observed from the light-emitting normal visual angle of the light guide (1);
a light source (4), the light source (4) being arranged below the end I (2) and the end II (3).
2. A light guide for a signal light of an automobile according to claim 1, wherein: the light emitted by the light source (4) is transmitted out of the modeling normal direction through refraction and reflection.
3. A light guide for a signal light of an automobile according to claim 2, wherein: the light rays emanating from the shaping normal may form a complete ring or a light emitting area around a circle.
4. A light guide for a signal light of an automobile according to claim 1, wherein: the optical surface structure (5) is a light guide tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705368.0A CN112303589A (en) | 2019-08-01 | 2019-08-01 | Light guide for automobile signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705368.0A CN112303589A (en) | 2019-08-01 | 2019-08-01 | Light guide for automobile signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112303589A true CN112303589A (en) | 2021-02-02 |
Family
ID=74486699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705368.0A Pending CN112303589A (en) | 2019-08-01 | 2019-08-01 | Light guide for automobile signal lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303589A (en) |
-
2019
- 2019-08-01 CN CN201910705368.0A patent/CN112303589A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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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 |