Optical module and vehicle lamp

Abstract

An optical module and a vehicle lamp relate to the technical field of vehicle lamps. The optical module comprises a collimation structure and an optical element, the optical element is provided with a first surface, a second surface, a third surface and a microstructure surface, and the microstructure surface is provided with a first optical part and a second optical part; light enters the collimation structure, a first part of light is emitted from the first surface, a second part of light is emitted from the second surface after being subjected to total reflection of the second surface and reflection of the first optical part in sequence, and a third part of light is emitted from the third surface after being subjected to total reflection of the second surface and total reflection of the second optical part in sequence. According to the optical module, the composite light emitting effect can be achieved while light emitting of the multiple light emitting faces is achieved.

Description

Technical Field

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

[0002] Headlights are essential components of vehicles and play an important role in driving. They can provide light for the driver to illuminate or indicate when there is insufficient light outside. With the development of society, since headlights have a great impact on the shape of the entire vehicle, people's requirements for headlights are no longer limited to lighting functions, but also have higher requirements for their appearance. Based on this, the design of headlights has become a crucial part of automobile design.

[0003] Traditional headlights are limited in design space and have certain structural design defects, which results in that current headlights can only emit light in a single direction. As people's demands for diversified headlights increase, this optical module with a single light-emitting surface can no longer meet the needs of users. Therefore, it is important and meaningful to provide a new optical module to achieve multi-faceted light emission. Utility Model Content

[0004] The utility model aims to provide an optical module and a vehicle lamp, which can realize a composite light emitting effect while realizing light emitting from multiple light emitting surfaces.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In one aspect of the utility model, an optical module is provided, the optical module comprises a collimating structure and an optical element, the optical element has a first surface, a second surface, a third surface and a microstructure surface, the microstructure surface is provided with a first optical part and a second optical part; light is incident on the collimating structure, wherein the first part of the light is emitted from the first surface, the second part of the light is emitted from the second surface after total reflection from the second surface and reflection from the first optical part, and the third part of the light is emitted from the third surface after total reflection from the second surface and total reflection from the second optical part. The optical module can realize light emission from multiple light-emitting surfaces.

[0007] Optionally, the first surface and the second surface are located on one side of the optical element, the collimating structure is located on the other side of the optical element, and the first surface and at least a portion of the second surface are respectively arranged opposite to the collimating structure.

[0008] Optionally, the microstructure surface is arranged opposite to the second surface.

[0009] Optionally, the first surface, the second surface and the third surface are connected in sequence, and the third surface is connected between the second surface and the microstructure surface.

[0010] Optionally, the optical module further includes a light source, and light emitted by the light source can be incident on the collimating structure.

[0011] Optionally, the collimating structure is a condenser or a reflector, and the collimating structure is used to collimate the light emitted by the light source and then make it incident on the first surface and the second surface.

[0012] Optionally, the collimating structure and the optical element are integrally formed or separately provided.

[0013] Optionally, the first optical portion is a spherical pattern.

[0014] Optionally, the second optical portion is parallel to the second surface.

[0015] Another aspect of the present invention provides a vehicle lamp, which includes the above-mentioned optical module.

[0016] The beneficial effects of the utility model include:

[0017] The optical module provided by the present application includes a collimating structure and an optical element, wherein the optical element has a first surface, a second surface, a third surface and a microstructure surface, wherein a first optical part and a second optical part are arranged on the microstructure surface; light is incident on the collimating structure, wherein a first portion of light is emitted from the first surface, a second portion of light is emitted from the second surface after total reflection of the second surface and reflection of the first optical part in sequence, and a third portion of light is emitted from the third surface after total reflection of the second surface and total reflection of the second optical part in sequence. The present application sets the first surface, the second surface, the third surface and the microstructure surface, so that the first portion of light incident on the collimating structure of the optical element can be emitted through the first surface; the second portion of light can be emitted from the second surface after total reflection of the second surface and reflection of the first optical part; the third portion of light can be emitted from the third surface after total reflection of the second surface and the third surface respectively. Through the above arrangement, the present application can realize multi-sided light emission of optical elements. The optical module provided by the present application is applied to car lights. On the one hand, it can solve the dilemma that car lights in the prior art can only emit light from a single light-emitting surface. On the other hand, it can also realize traditional thick-wall lighting and light curtain lighting of car lights at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1One of the structural schematic diagrams of the optical module provided by the embodiment of the utility model;

[0020] Figure 2 for Figure 1 A top view of the optical module;

[0021] Figure 3 for Figure 1 Light path diagram of the optical module;

[0022] Figure 4 The second structural schematic diagram of the optical module provided in the embodiment of the utility model.

[0023] Icons: 10 - optical element; 11 - collimating structure; 12 - first surface; 13 - second surface; 14 - microstructure surface; 141 - first optical part; 142 - second optical part; 15 - third surface; 20 - light source; 30 - circuit board; 41 - condenser; 42 - reflector. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Please refer to Figures 1 to 3 The present embodiment provides an optical module, which includes a collimating structure 11 and an optical element 10. The optical element 10 has a first surface 12, a second surface 13, a third surface 15 and a microstructure surface 14. The microstructure surface 14 is provided with a first optical portion 141 and a second optical portion 142. Light is incident on the collimating structure 11, wherein a first portion of light is emitted from the first surface 12, a second portion of light is emitted from the second surface 13 after total reflection from the second surface 13 and reflection from the first optical portion 141 in sequence, and a third portion of light is emitted from the third surface 15 after total reflection from the second surface 13 and total reflection from the second optical portion 142 in sequence. The optical module can realize light emission from multiple light-emitting surfaces.

[0031] The structure of the optical element 10 provided in this application can be referred to Figure 1 and Figure 2 As shown, the optical element 10 has a first surface 12, a second surface 13, a third surface 15 and a microstructure surface 14. The light emitted by the light source 20 can be incident on the optical element 10 through the collimating structure 11.

[0032] The first surface 12 is one of the light emitting surfaces of the optical element 10. The first part of the light incident from the collimating structure 11 can be directly emitted through the first surface 12. Figure 3 shown.

[0033] The second surface 13 also serves as a light emitting surface of the optical element 10, and at the same time, the second surface 13 also has the characteristic of total reflection of light. In this embodiment, the second part of the light incident from the collimating structure 11 is incident on the second surface 13, and can be incident on the microstructure surface 14 after total reflection from the second surface 13.

[0034] The microstructure surface 14 has a first optical portion 141 and a second optical portion 142. The first optical portion 141 can destroy the total reflection of the light, while the second optical portion 142 will not affect the total reflection of the light. In other words, when the light incident from the second surface 13 is incident on the microstructure surface 14, part of the light can be incident on the first optical portion 141, and the other part of the light will be incident on the second optical portion 142.

[0035] The total reflection of the light incident on the first optical portion 141 of the microstructure surface 14 will be destroyed by the first optical portion 141, so that the light incident on the first optical portion 141 cannot be totally reflected, but is reflected by the first optical portion 141 to the second surface 13 and then directly emitted from the second surface 13.

[0036] The total reflection of the light incident on the second optical portion 142 of the microstructure surface 14 will not be affected by the second optical portion 142 , and the light can continue to be totally reflected. After multiple total reflections on the second surface 13 and the first surface 12 , the light can be emitted through the third surface 15 .

[0037] It should be noted that, optionally, the first optical portion 141 may be a spherical pattern provided on the microstructure surface 14, or other pattern structures that can destroy the total reflection property, and the present application does not impose any specific restrictions thereon. The second optical portion 142 is a total reflection structure.

[0038] In this embodiment, by providing the first surface 12 , the second surface 13 and the third surface 15 , and cooperating with the microstructure surface 14 , light can be emitted from three directions respectively, thereby realizing multi-faceted light emission of the optical element 10 .

[0039] It should be noted that the light incident on the collimating structure 11 can be first divided into two parts, one of which is incident on the first surface 12 of the optical element 10 and then directly emitted from the first surface 12; the other part is incident on the second surface 13 of the optical element 10. The light incident on the second surface 13 can be divided into two parts after total reflection on the second surface 13, one of which is incident on the first optical part 141 of the microstructure surface 14, and the other part is incident on the second optical part 142 of the microstructure surface 14. Among them, the total reflection of the light incident on the first optical part 141 will be destroyed by the first optical part 141, so that the light incident on the first optical part 141 can be directly emitted from the second surface 13 after being reflected by the first optical part 141; and the total reflection of the light incident on the second optical part 142 is not affected by the second optical part 142 and can continue to fully reflect the light, so that the light can be emitted from the third surface 15 after multiple total reflections on the second surface 13 and the third surface 15.

[0040] In summary, the optical module provided in the present application includes a collimating structure 11 and an optical element 10, the optical element 10 has a first surface 12, a second surface 13, a third surface 15 and a microstructure surface 14, and the microstructure surface 14 is provided with a first optical portion 141 and a second optical portion 142; the light is incident on the collimating structure 11, wherein the first part of the light is emitted from the first surface 12, the second part of the light is emitted from the second surface 13 after total reflection on the second surface 13 and reflection on the first optical portion 141 in sequence, and the third part of the light is emitted from the third surface 15 after total reflection on the second surface 13 and total reflection on the second optical portion 142 in sequence. The present application sets the first surface 12, the second surface 13, the third surface 15 and the microstructure surface 14, so that the first part of the light incident on the collimating structure 11 of the optical element 10 can be emitted through the first surface 12; the second part of the light can be emitted from the second surface 13 after total reflection by the second surface 13 and reflection by the first optical part 141; the third part of the light can be emitted from the third surface 15 after total reflection by the second surface 13 and the third surface 15 respectively. The present application can realize multi-faceted light emission of the optical element 10 by setting as above, and the optical module provided by the present application is applied to the vehicle lamp. On the one hand, it can solve the dilemma that the vehicle lamp in the prior art can only realize light emission from a single light emitting surface, and on the other hand, it can also realize the traditional thick wall lighting and light curtain lighting of the vehicle lamp at the same time.

[0041] Optionally, the first surface 12 and the second surface 13 are located on one side of the optical element 10, and the collimating structure 11 is located on the other side of the optical element 10, and the first surface 12 and at least a portion of the second surface 13 are respectively arranged opposite to the collimating structure 11. In the present application, by arranging the first surface 12 and the second surface 13 on the side opposite to the collimating structure 11, and the first surface 12 and at least a portion of the second surface 13 are respectively arranged opposite to the collimating structure 11, the light incident from the collimating structure 11 can be incident on the first surface 12 and the second surface 13, and it can be ensured that at least a portion of the light incident from the collimating structure 11 is incident on the first surface 12, and at least a portion of the light incident from the collimating structure 11 is incident on the second surface 13.

[0042] The present application does not limit the specific area of ​​the second surface 13 corresponding to the collimating structure 11 , and those skilled in the art may select the specific area range of the second surface 13 corresponding to the collimating structure 11 according to actual needs.

[0043] Furthermore, in this embodiment, in order to ensure that the light can be totally reflected multiple times between the second surface 13 and the second portion of the microstructure surface 14, the microstructure surface 14 is optionally arranged opposite to the second surface 13, such as Figure 3 This is conducive to multiple total reflections of light between the second surface 13 and the second optical portion 142 .

[0044] Optionally, the first surface 12 , the second surface 13 and the third surface 15 may be connected in sequence, and the third surface 15 is connected between the second surface 13 and the microstructure surface 14 .

[0045] It should be noted that, in this embodiment, the optical element 10 can also be divided into two interconnected parts, one part is the first sub-element, and the other part is the second sub-element. Among them, the light incident surface and the first surface 12 of the optical element 10 are arranged on the first sub-element, and are arranged oppositely on the first sub-element; the second surface 13, the microstructure surface 14 and the third surface 15 are arranged on the second sub-element, and the second surface 13 and the microstructure surface 14 are arranged oppositely, the third surface 15 is connected between the second surface 13 and the microstructure surface 14, and the third surface 15 is located on the side of the second sub-element away from the first sub-element.

[0046] The first sub-element may be a thick-walled component. The second sub-element may be a light guide or a light curtain, which is not specifically limited in the present application.

[0047] To ensure the transparency of the second sub-element, the second sub-element can be made into a thin-film structure, which can also be called a thin-walled structure. The thin-walled structure includes two relatively large planes (respectively, the second surface 13 and the microstructure surface 14) arranged opposite to each other, wherein the second surface 13 is used as a light-emitting surface, and the surface of the light-emitting surface is not provided with an optical pattern, which will not affect the transparency of the second sub-element, and can present a transparent texture. When the second surface 13 is lit, a large area of ​​uniform light can be emitted, forming a unique light curtain effect. The surface between the second surface 13 and the microstructure surface 14 is the third surface 15 of the second sub-element, and the third surface 15 is arranged corresponding to the light-entering surface of the second sub-element, and is used to receive and emit the light transmitted from the second sub-element after total reflection of the second surface 13 and the second optical part 142.

[0048] Optionally, the optical module may further include a light source 20, and the light emitted by the light source 20 may be incident on the collimating structure 11. The present application does not specifically limit the type of the light source 20, for example, it may be an LED light source 20, or it may be another light source 20. In addition, the present application does not limit the color of the light emitted by the light source 20, for example, it may be used to emit white light, yellow light or red light.

[0049] Furthermore, the optical module may further include a circuit board 30 for electrically connecting the light source 20. The circuit board 30 may be a PCB board.

[0050] In addition, the present application does not limit the specific position of the light source 20 .

[0051] In some embodiments of the present application, the collimating structure 11 may be a condenser 41 or a reflector 42. The collimating structure 11 is used to collimate the light emitted by the light source and then make it incident on the first surface 12 and the second surface 13. Furthermore, the collimating structure 11 and the optical element 10 may be integrally formed or separately arranged.

[0052] In one possible implementation, see Figure 3 Optionally, the collimating structure 11 is a condenser 41 for collimating the light emitted by the light source 20 and then making it incident on the first surface 12 and the second surface 13 .

[0053] By disposing the condenser 41 , the light incident on the condenser 41 can be collimated and incident on the first surface 12 and the second surface 13 , which is beneficial to the uniform emission of the light.

[0054] In another possible implementation, please refer to Figure 4 Optionally, the collimating structure 11 is a reflector 42, which is disposed between the light emitting side of the light source 20 and the light incident side of the optical element 10, and is used to reflect the light emitted by the light source 20 to the light incident side of the optical element 10.

[0055] The present application can, through the setting of the reflector 42, reflect the light when the plane where the light source 20 is located is perpendicular to the light incident side of the optical element 10, so as to realize the direction of the light being turned. The setting of the reflector 42 can realize compatibility with different setting positions of the light source 20, so that the light source 20 can be set at different positions according to actual needs, thereby solving the limitation of the setting position of the light source 20. In this way, when the optical module is applied to the vehicle lamp, it can reduce the restriction on the internal space position of the vehicle lamp, which is conducive to the diversified design of the light output shape of the vehicle lamp.

[0056] Another aspect of the utility model provides a vehicle lamp, which includes the above-mentioned optical module. Since the specific structure and technical effects of the optical module have been elaborated and explained in detail in the previous text, the present application will not repeat them here. The vehicle lamp provided by the present application can realize the emission of light from multiple light-emitting surfaces of the vehicle lamp by setting the above-mentioned optical module. On the one hand, it can solve the dilemma that the vehicle lamp in the prior art can only emit light from a single light-emitting surface. On the other hand, it can also realize the traditional thick-wall lighting and light curtain lighting of the vehicle lamp at the same time.

[0057] The above description is only an optional embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

Claims

1. An optical module, characterized in that: It comprises a collimating structure and an optical element, wherein the optical element has a first surface, a second surface, a third surface and a microstructure surface, and the microstructure surface is provided with a first optical part and a second optical part; The light is incident on the collimating structure, wherein the first part of the light is emitted from the first surface, the second part of the light is emitted from the second surface after being totally reflected by the second surface and reflected by the first optical part, and the third part of the light is emitted from the third surface after being totally reflected by the second surface and reflected by the second optical part.

2. The optical module according to claim 1, characterized in that: The first surface and the second surface are located on one side of the optical element, the collimating structure is located on the other side of the optical element, and the first surface and at least a portion of the second surface are respectively arranged opposite to the collimating structure.

3. The optical module according to claim 1, characterized in that: The microstructure surface is arranged opposite to the second surface.

4. The optical module according to claim 3, characterized in that: The first surface, the second surface and the third surface are connected in sequence, and the third surface is connected between the second surface and the microstructure surface.

5. The optical module according to claim 1, characterized in that: The optical module further includes a light source, and light emitted by the light source can be incident on the collimating structure.

6. The optical module according to claim 5, characterized in that: The collimating structure is a condenser or a reflector, and is used to collimate the light emitted by the light source and then make it incident on the first surface and the second surface.

7. The optical module according to claim 5, characterized in that: The collimating structure and the optical element are integrally formed or separately arranged.

8. The optical module according to any one of claims 1 to 7, characterized in that: The first optical portion is a spherical pattern.

9. The optical module according to claim 8, characterized in that: The second optical portion is parallel to the second surface.

10. A vehicle lamp, characterized in that: An optical module comprising any one of claims 1 to 9.

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