Optical system

Abstract

The utility model relates to the technical field of car lamps, and discloses an optical system which comprises a light guide and a reflection frame, a multifunctional surface and a light-emitting surface are formed on the light guide, the multifunctional surface is composed of a plurality of first reflection surfaces and a plurality of transmission surfaces which are arranged at intervals, and the multifunctional surface right corresponds to the light-emitting surface. A light path reflected by the first reflecting surface and a light path transmitted by the transmitting surface can be emitted out of the light guide from the light emitting surface; and a second reflecting surface is formed on one surface, close to the light guide, of the reflecting frame, and right corresponds to the multifunctional surface, so that a light path reflected by the second reflecting surface can be emitted through the transmission surface. The utility model has the technical effect of realizing the efficient use and multi-functional multiplexing of the light guide.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to an optical system. Background Art

[0002] There are more and more applications of automotive LED lamps. Due to its many advantages such as energy saving and long life, people are increasingly fond of LED car lights. The application of LED makes automotive lamps more integrated, so multifunctional composite lamps have also emerged. The existing technology uses a single thick-walled part to achieve multifunctional reuse effects, and the light effect and lighting uniformity of each function are often not taken into account. Ultimately, the light effect or uniformity effect of a certain light source needs to be sacrificed, that is, the existing multifunctional composite lamps have the defect that light effect and uniformity cannot be taken into account. Utility Model Content

[0003] Based on the technical defects mentioned in the background technology, the purpose of the present invention is to provide a new lighting system to solve the problems mentioned in the background technology.

[0004] Specifically, this lighting system proposes to use a combination system of thick-walled light guides and reflective brackets to achieve multi-functional reuse using the same light-emitting surface when the luminous intensity of LED particles is sufficient. This can ensure the performance requirements of each function while achieving a better lighting uniformity effect.

[0005] Based on this, the lighting system includes a light guide and a reflector frame, a multifunctional surface and a light emitting surface are formed on the light guide, the multifunctional surface is composed of a plurality of first reflective surfaces and a plurality of transmission surfaces arranged at intervals, the multifunctional surface is directly corresponding to the light emitting surface, so that the light path reflected by the first reflective surface and the light path transmitted by the transmission surface can both be emitted from the light emitting surface of the light guide; a second reflective surface is formed on a surface of the reflector frame close to the light guide, the second reflective surface is directly corresponding to the multifunctional surface, so that the light path reflected by the second reflective surface can be emitted through the transmission surface;

[0006] In this way, the multifunctional surface can be used to guide the light paths of at least two light sources. When one of the light guiding paths is used, the other light guiding path is idle, and the light guiding operation of the light guide is basically not weakened by having two light guiding paths. At the same time, in order to achieve the uniformity effect under the two light guiding paths, patterns can be set on the two reflecting surfaces respectively, so that the uniformity of light output under any light guiding path will not be sacrificed, thereby realizing the efficient use of the light guide and the multifunctional multiplexing effect.

[0007] Preferably, a first concentrator is further formed on the light guide, and the first concentrator is used to collimate the light path and then project it to the multifunctional surface, wherein the first reflective surface is an inclined surface forming an angle with the central axis of the first concentrator, and the transmissive surface is a vertical surface parallel to the central axis of the first concentrator;

[0008] Only in this way can the first reflecting surface reflect the optical path passing through the first condenser, while avoiding the action of the transmission surface on this optical path.

[0009] Preferably, the multifunctional surface further includes a horizontal surface that connects the first reflecting surface and the transmission surface one by one. The horizontal surface is perpendicular to the central axis of the first condenser, and this horizontal surface also avoids acting on the optical path passing through the first condenser.

[0010] Preferably, a second condenser is further formed on the light guide. The second condenser is used to collimate the optical path and then project it onto the second reflecting surface. The light after being reflected by the second reflecting surface can enter the light guide through the transmission surface.

[0011] Preferably, the optical system further includes a first light source corresponding to the first condenser and a second light source corresponding to the second condenser. The first light source and the second light source are used to emit different lights to be applicable to different functional vehicle lamp applications.

[0012] Preferably, the first light source includes at least one kind of light source, and the second light source includes at least one kind of light source other than the color of the first light source. In this way, this optical system can realize light pattern applications of at least two functions.

[0013] Preferably, one of corrosive texture, horizontal stripe pattern, and fish-eye pattern is formed on the first reflecting surface. This pattern is used to obtain good uniformity of the optical path.

[0014] Preferably, the second reflecting surface is formed by a reflecting material electroplated on a reflecting frame or a reflecting frame made of high-reflection white material.

[0015] Preferably, one of corrosive texture, horizontal stripe pattern, and fish-eye pattern is formed on the second reflecting surface. This pattern is also used to obtain good uniformity of the optical path. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0017] Figure 1 is a schematic structural diagram of an optical system in an embodiment of the present invention;

[0018] Figure 2 is in an embodiment of the present invention Figure 1 a detailed view at A;

[0019] In the figure:

[0020] Light guide 1;

[0021] Multifunctional surface 11, first reflecting surface 111, transmission surface 112, horizontal surface 113;

[0022] Light-emitting surface 12;

[0023] First condenser 13;

[0024] Second condenser 14;

[0025] Reflection bracket 2;

[0026] Second reflecting surface 21;

[0027] First light source 3;

[0028] Second light source 4. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment: This embodiment provides an optimal implementation scheme of an optical system. This embodiment takes the application of this optical system in daytime running lights and front turn signals as an example for description.

[0031] Specifically, as Figures 1-2 , this optical system includes a light guide 1. A multifunctional surface 11 and a light-emitting surface 12 are formed on the light guide 1. The multifunctional surface 11 is composed of a plurality of first reflecting surfaces 111 and a plurality of transmissive surfaces 112 arranged at intervals. The multifunctional surface 11 is directly opposite to the light-emitting surface 12, so that the optical paths reflected by the first reflecting surfaces 111 ( Figures 1-2 shown by the solid-line optical paths in Figures 1-2 ) and the optical paths transmitted by the transmissive surfaces 112 (

[0032] shown by the dashed-line optical paths in Figures 1-2 ) can all emit from the light-emitting surface 12 out of the light guide 1. Figures 1-2 Furthermore, as Figure 1 , this optical system further includes a reflection bracket 2. A second reflecting surface 21 is formed on the surface of the reflection bracket 2 close to the light guide 1. The second reflecting surface 21 is directly opposite to the multifunctional surface 11, so that the optical path reflected by the second reflecting surface 21 can be emitted through the transmissive surface 112 (

[0033] shown by the dashed-line optical path in Figures 1-2, a first condenser 13 is also formed on the optical waveguide 1. The first condenser 13 is used to collimate the optical path and then project it onto the multifunctional surface 11. Among them, the first reflecting surface 111 is an inclined surface that forms an angle with the central axis of the first condenser 13, and the transmitting surface 112 is a vertical surface parallel to the central axis of the first condenser 13.

[0034] Further, in this embodiment, as Figure 1 , the central axis of the first condenser 13 is perpendicular to the light output direction of the optical waveguide, and the first condenser 13 is a crater-type condenser or a Fresnel lens. The Fresnel lens requires less space in the vertical direction, but has a relatively low efficiency. The crater-type condenser requires more space in the vertical direction, but has a better condensing effect.

[0035] Further, as Figures 1-2 , the multifunctional surface 11 further includes a horizontal surface 113 that connects the first reflecting surface 111 and the transmitting surface 112 one by one. The horizontal surface 113 is perpendicular to the central axis of the first condenser 13.

[0036] Further, as Figure 1 , a second condenser 14 is also formed on the optical waveguide 1. The second condenser 14 is used to collimate the optical path and then project it onto the second reflecting surface 21. The second condenser 14 is arranged in parallel with the first condenser 13, and its central axis is parallel to the central axis of the first condenser 13, so that the optical paths collimated by the two are parallel optical paths.

[0037] In this embodiment, as Figure 1 , the central axis of the second condenser 14 is perpendicular to the light output direction of the optical waveguide, and the second condenser 14 is the same as the first condenser 13.

[0038] Further, as Figure 1 , the optical system further includes a first light source 3 corresponding to the first condenser 13 and a second light source 4 corresponding to the second condenser 14. The light output energy ratio of the two light sources can be allocated through the space ratio of the first reflecting surface 111 and the transmitting surface 112. The larger the proportion of the first reflecting surface 111, the higher the energy utilization rate of the first light source 3. Conversely, the higher the energy utilization rate of the second light source 4. Specifically, the light type regulations, energy values, and uniformity of the two functions need to be considered comprehensively.

[0039] In this embodiment, the first light source 3 is a white light particle, serving as a daytime driving light source, and the second light source 4 is a yellow light particle, serving as a front turn signal light source. The ratio of the first reflecting surface 111 to the transmitting surface 112 is 2:1.

[0040] Further, one of corrosive texture, horizontal stripe pattern, and fish-eye pattern is formed on the first reflecting surface.

[0041] Further, the second reflecting surface is formed by a reflecting material electroplated on the reflecting frame or by a reflecting frame made of a highly reflective white material.

[0042] Further, one of corrosive leather grains, horizontal stripe patterns, and fisheye patterns is formed on the second reflecting surface.

[0043] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0044] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical system, characterized in that: Included are: A light guide, wherein a multifunctional surface and a light emitting surface are formed on the light guide, wherein the multifunctional surface is composed of a plurality of first reflecting surfaces and a plurality of transmitting surfaces arranged at intervals, and the multifunctional surface is directly corresponding to the light emitting surface, so that the light path reflected by the first reflecting surface and the light path transmitted by the transmitting surface can both be emitted from the light emitting surface to the light guide; A reflector frame is provided with a second reflective surface on a surface of the reflector frame close to the light guide, the second reflective surface is directly corresponding to the multifunctional surface, so that the light path reflected by the second reflective surface can be emitted through the transmission surface.

2. An optical system according to claim 1, characterized in that: A first concentrator is also formed on the light guide, and the first concentrator is used to collimate the light path before irradiating it to the multifunctional surface, wherein the first reflecting surface is an inclined surface forming an angle with the central axis of the first concentrator, and the transmitting surface is a vertical surface parallel to the central axis of the first concentrator.

3. An optical system according to claim 2, characterized in that: The multifunctional surface also includes a horizontal plane connecting the first reflecting surface and the transmitting surface one by one, and the horizontal plane is perpendicular to the central axis of the first concentrator.

4. An optical system according to claim 3, characterized in that: A second condenser is also formed on the light guide, and the second condenser is used to collimate the light path and then emit it to the second reflection surface.

5. An optical system according to claim 4, characterized in that: The optical system further includes a first light source corresponding to the first condenser and a second light source corresponding to the second condenser.

6. An optical system according to claim 5, characterized in that: The first light source is set as a light source of at least one color among white, yellow, red, and blue, and the second light source is set as a light source of at least one color other than the color of the first light source.

7. An optical system according to any one of claims 1 to 3, characterized in that: The first reflecting surface is formed with one of corrosive leather patterns, horizontal stripe patterns, and fisheye patterns.

8. An optical system according to any one of claims 1 to 3, characterized in that: The second reflective surface is formed by a reflective material electroplated on the reflective frame or by a reflective frame made of high-reflective white material.

9. An optical system according to claim 8, characterized in that: The second reflecting surface is formed with one of corrosive leather patterns, horizontal stripe patterns, and fisheye patterns.

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