Car lamp optical device and car lamp
By using a combination of light guide and the first light guide in the car light, the reflection and refraction of light are achieved, which solves the problem that a single light guide can evenly light up the large opening area, and improves the lighting effect and overall shape of the car light.
Patent Information
- Application Number
- CN202421295668.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When the existing car light guide has a large opening in the luminous area, it is difficult for a single light guide to light evenly, affecting the lighting effect.
The first light guide system is adopted, including a light guide and a first light guide on the light side of the light guide. The light is reflected in the light guide and refracted and emitted through the first light guide to expand the light output range, realize uniform conduction and deflection of the light, and fill in Full of luminous area.
Through the combination of a single light guide and the first light guide, the uniform lighting of the light emitting area with a larger opening is achieved, simplifying the structure of the car lighting optical device, suitable for compact layout, and improving the lighting effect and appearance shape.
Smart Images
Figure CN222316729U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle lamps, and in particular to a vehicle lamp optical device and a vehicle lamp. Background Art
[0002] With the continuous development of society, people's requirements for car lights are no longer limited to lighting functions, but have higher requirements for the appearance of car lights. For the whole vehicle, the car lights also play a more important role than ever before, and have a great impact on the shape of the whole vehicle, so the design of the car lights has become a crucial link.
[0003] As a commonly used optical system for car lights, light guides have the advantages of using fewer LEDs and having better uniformity. However, when the opening of the light-emitting area is large, a single light guide often cannot be lit, which affects the overall lighting effect of the car light. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a headlight optical device and a headlight, which can evenly light a headlight with a larger opening through a single light guide.
[0005] According to one aspect of an embodiment of the present application, a vehicle light optical device is provided, comprising a first light guide system, wherein the first light guide system comprises a light guide and a first light guide member located on the light emitting side of the light guide, a first light source is further provided at at least one end of the light guide, light emitted by the first light source enters the light guide, is reflected in the light guide, and is transmitted toward the first light guide member, and the light is reflected in the first light guide member and is refracted and emitted by the first light guide member.
[0006] Optionally, the light guide is provided with a first light incident surface, light guide teeth and a first light emitting surface, and the light emitted by the first light source enters the light guide through the first light incident surface and is reflected by the light guide teeth to be emitted toward the first light emitting surface.
[0007] Optionally, the first light guide is provided with a second light incident surface, a first reflection surface and a second light emitting surface, and the light emitted from the light guide enters the first light guide through the second light incident surface, is reflected by the first reflection surface, and is refracted toward the second light emitting surface.
[0008] Optionally, the first light guide is a thick-walled concentrator, the light entrance of the thick-walled concentrator is a light-collecting cup structure, and the light guide is located at the light entrance.
[0009] Optionally, at least one second light guide system is further arranged on the rear side of the first light guide system, and the second light guide system includes a second light source and a second light guide member, and the light emitted by the second light source enters the first light guide member after passing through the corresponding second light guide member and is emitted by the first light guide member.
[0010] Optionally, a plurality of the second light guide systems and the first light guide system are arranged in a front-to-back direction, and light emitted from the second light guide system is incident on the first light guide member through a plurality of second light guide systems adjacent to each other in sequence and then emitted.
[0011] Optionally, a plurality of the second light guide systems are arranged side by side in sequence on one side of the first reflective surface, and the light emitted by each second light source passes through the corresponding second light guide component, enters the first light guide component through the first reflective surface of the first light guide component, and is emitted through the second light emitting surface of the first light guide component.
[0012] Optionally, the second light guide comprises a thick-walled concentrator.
[0013] Optionally, the second light guide member further includes at least a light guide or a reflector.
[0014] Another aspect of the embodiments of the present application provides a vehicle lamp, comprising: the above-mentioned vehicle lamp optical device.
[0015] The headlight optical device and headlight provided by the embodiment of the present application realize light transmission through the first light guide system. The light emitted by the first light source is reflected in the light guide to expand the light emission range. The light emitted by the first light source passes through the light guide and then enters the first light guide. The light is first reflected in the first light guide and then refracted to emit. The reflection and refraction of the first light guide realize the deflection of the light, further expanding the light emission range. The light emitted by the first light guide can basically fill the light-emitting area of the headlight, can light up the light-emitting area with a larger opening, and the light has good uniformity. The light emitted by the first light guide system realizes the function of evenly lighting the light-emitting area with a larger opening by a single light guide in combination with the first light guide, and also simplifies the structure of the headlight optical device, which is conducive to the compact layout of the headlight optical device when applied to the headlight. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 is a schematic structural diagram of a vehicle light optical device provided in the first embodiment of the present application;
[0018] Figure 2 is a cross-sectional schematic diagram of a vehicle light optical device provided in the first embodiment of the present application;
[0019] Figure 3is a schematic structural diagram of a vehicle light optical device provided in a second embodiment of the present application;
[0020] Figure 4 is a cross-sectional schematic diagram of a vehicle light optical device provided in a second embodiment of the present application;
[0021] Figure 5 is a schematic structural diagram of a vehicle light optical device provided in a third embodiment of the present application;
[0022] Figure 6 is a cross-sectional schematic diagram of a vehicle light optical device provided in a third embodiment of the present application;
[0023] Figure 7 is a cross-sectional schematic diagram of a vehicle light optical device provided in a fourth embodiment of the present application;
[0024] Figure 8 It is a cross-sectional schematic diagram of a vehicle light optical device provided in the fifth embodiment of the present application.
[0025] Icon: 100 - first light guiding system; 10 - first light source; 20 - light guide; 201 - first light incident surface; 202 - light guide tooth; 203 - first light emitting surface; 30 - first light guiding member; 301 - second light incident surface; 302 - first reflecting surface; 303 - second light emitting surface; 200 - second light guiding system; 210 - second light source; 230 - second light guiding member; 232 - reflecting surface; 233 - light emitting surface. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0027] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application 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 this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0028] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0029] Please refer to Figure 1 As shown, an embodiment of the present application provides a vehicle light optical device, comprising: a first light guide system 100, the first light guide system 100 comprises a light guide 20 and a first light guide member 30 located on the light emitting side of the light guide 20, a first light source 10 is further provided at at least one end of the light guide 20, the light emitted by the first light source 10 enters the light guide 20, is reflected in the light guide 20, and is transmitted toward the first light guide member 30, and the light is reflected in the first light guide member 30 and is refracted by the first light guide member 30 and emitted.
[0030] The first light guide system 100 is used to transmit light, wherein the light guide 20 of the first light guide system 100 has two ends, and the first light source 10 is arranged at at least one end of the light guide 20. The light emitted by the first light source 10 enters the light guide 20 from the end of the light guide 20, and the light is first reflected in the light guide 20 and then transmitted out. The emitted light is emitted toward the first light guide member 30, and after being reflected in the first light guide member 30, it is refracted and emitted by the first light guide member 30.
[0031] For example, in the present application, the first light source 10 can be an LED. Due to the arrangement of the light guide 20, the number of LEDs does not need to be too large, and the light emitted by a small number of LEDs can be reflected in the light guide 20 to expand the light emission range; the light emitted by the first light source 10 passes through a single light guide 20 and then enters the first light guide 30. The light is first reflected in the first light guide 30 and then refracted to be emitted. The reflection and refraction of the first light guide 30 realize the deflection of the light, which further expands the light emission range. The light emitted by the first light guide 30 can illuminate a light-emitting area with a larger opening, and the light has better uniformity.
[0032] Therefore, the headlight optical device provided in the embodiment of the present application realizes light transmission through the first light guide system 100. The light emitted by the first light source 10 is reflected once in the light guide 20 and twice in the first light guide 30, and then refracted and emitted by the first light guide 30. This expands the light emission range of the light, and the emitted light can basically fill the light-emitting area of the headlight, thereby realizing the function of uniformly lighting the light-emitting area with a larger opening by using a single light guide 20 in combination with the first light guide 30. It also simplifies the structure of the headlight optical device, which is beneficial to the compact layout of the headlight optical device when it is applied to the headlight.
[0033] Specifically, Figure 2 As shown, the light guide 20 is provided with a first light incident surface 201 , light guide teeth 202 and a first light emitting surface 203 . The light emitted by the first light source 10 enters the light guide 20 through the first light incident surface 201 , and is reflected by the light guide teeth 202 to be emitted toward the first light emitting surface 203 .
[0034] The end of the light guide 20 corresponding to the first light source 10 is the first light incident surface 201. After the light enters the light guide 20 from the first light incident surface 201, it hits the light guide teeth 202 of the light guide 20 to form a reflection. For example, the light guide teeth 202 are a plurality of tooth structures arranged in an array. After the light enters the light guide teeth 202, it is reflected in different directions on the tooth surface, thereby expanding the light output range; the reflected light is emitted to the first light output surface 203 of the light guide 20, and then output from the first light output surface 203.
[0035] The light emitted from the light guide 20 enters the first light guide member 30, which is provided with a second light incident surface 301, a first reflection surface 302 and a second light emitting surface 303. The light emitted from the light guide 20 enters the first light guide member 30 through the second light incident surface 301, is reflected by the first reflection surface 302, and is refracted toward the second light emitting surface 303.
[0036] In one embodiment of the present application, the light guide 20 is located above the first light guide member 30, the light guide teeth 202 of the light guide 20 are located on the inner upper surface of the light guide 20, and the first light emitting surface 203 is facing the second light incident surface 301 of the first light guide member 30; the light entering the light guide 20 from the first light incident surface 201 at the end of the light guide 20 propagates in the light guide 20 and is reflected by the light guide teeth 202, and then is emitted to the first light guide member 30 below through the first light emitting surface 203.
[0037] The upper surface of the first light guide member 30 is its second light incident surface 301, and the direction opposite to the first reflective surface 302 is the second light emitting surface 303 of the first light guide member 30. An angle is formed between the first reflective surface 302 and the horizontal plane, and the light is reflected by the first reflective surface 302 to be emitted toward the second light emitting surface 303. The light refracted by the second light emitting surface 303 is deflected and emitted, which further expands the light emitting range.
[0038] It can be seen that the light is reflected at the light guide teeth 202 and the first reflection surface 302 respectively, and refracted at the second light emitting surface 303, thereby lighting up the light emitting area with a larger opening.
[0039] Furthermore, if Figure 3 , Figure 4 As shown, the first light guide 30 is a thick-walled concentrator, the light entrance of the thick-walled concentrator is a concentrating cup structure, and the light guide 20 is located at the light entrance.
[0040] When the first light guide 30 is a thick-walled concentrator, its light inlet is in the form of a concentrating cup structure, which is beneficial for converging the light emitted by the light guide 20 so that all the light is incident on the first light guide 30 .
[0041] In addition, with the light emitting direction of the first light guide system as the front and the opposite direction as the rear, at least one second light guide system 200 is arranged on the rear side of the first light guide system 100. The second light guide system 200 includes a second light source 210 and a second light guide member 230. The light emitted by the second light source 210 enters the first light guide member 30 after passing through the corresponding second light guide member 230, and is emitted from the second light emitting surface 303 of the first light guide member 30.
[0042] A plurality of second light guide systems 200 may be further provided on one side of the first light guide member 30 where the first reflective surface 302 is provided. The second light guide system 200 includes a second light source 210 and a second light guide member 230 , wherein the second light guide member 230 may be a thick-walled concentrator or a reflector.
[0043] By adding the second light guide system 200, the headlight optical device can realize more headlight functions, such as realizing the reuse of daytime running lights, turn signals and position lights in the headlights, and the reuse of position lights and brake lights in the taillights.
[0044] After the second light guide system 200 is added, the light emitted by the second light source 210 enters the second light guide member 230 , enters the first light guide member 30 through the first reflection surface 302 of the first light guide member 30 , and then exits from the second light emitting surface 303 of the first light guide member 30 .
[0045] When there are multiple second light guide systems 200, the multiple second light guide systems 200 and the first light guide system 100 are arranged in the front-to-back direction, and the light emitted by the multiple second light guide systems 200 enters the first light guide member 30 through the multiple second light guide systems 200 adjacent to each other in sequence, and is emitted from the second light emitting surface 303 of the first light guide member 30.
[0046] For example, two second light guide systems 200 are arranged in sequence on one side of the first light guide system 100 where the first reflective surface 302 is set, and the light emitted from the second light guide system 200 on the rear side first enters the middle second light guide system 200, then enters the front first light guide system 100 through the middle second light guide system 200, and then is emitted from the first light guide system 100.
[0047] The second light guide system 200 may have a variety of different presentation forms, and the second light guide member 230 at least includes a thick-walled concentrator, a light guide 20 and a reflector.
[0048] In one embodiment, Figure 5 , Figure 6As shown, the second light guide system 200 is arranged on one side of the first light guide member 30 where the first reflective surface 302 is arranged, and the second light guide member 230 of the second light guide system 200 is a thick-walled concentrator. The light incident on the second light guide member 230 by the second light source 210 is first reflected on the reflective surface 232 of the second light guide member 230, and then emitted from its light emitting surface 233 to enter the first light guide member 30.
[0049] In another embodiment, Figure 7 As shown, a plurality of second light guide systems 200 are sequentially arranged side by side on one side of the first reflective surface 302, and the light emitted by each second light source 210 enters the first light guide 30 from the first reflective surface 302 of the first light guide 30 after passing through the corresponding second light guide 230, and exits through the second light exiting surface 303 of the first light guide 30. By way of example, the second light guide 230 is two light guides 20 arranged side by side, and the light of the second light sources 210 of the two light guides 20 enters the respective light guides 20, reflects in the light guides 20, and then exits through transmission, and the exiting light is emitted toward the first reflective surface 302 of the first light guide 30, enters the first light guide 30 after passing through the first reflective surface 302, and exits through the second light exiting surface 303 of the first light guide 30.
[0050] In this embodiment, the light guide 20 can be regarded as the second light guide member 230 of the second light guide system 200 , and the light rays emitted from the light guide 20 are incident and propagated toward the first light guide member 30 .
[0051] Similarly, when the second light guide 230 is a light guide, the second light source 210 is disposed at at least one end of the light guide 20 , and light guide teeth 202 are also formed on the light guide 20 to reflect light, which is the same as the arrangement structure of the light guide 20 in the first light guide system 100 .
[0052] In yet another embodiment, referring to Figure 8 The second light guide member 230 may also be a reflector. The light emitted by the second light source 210 enters the first light guide member 30 through the first reflection surface 302 of the first light guide member 30 after being reflected by the reflector, and then is emitted from the second light emitting surface 303 of the first light guide member 30.
[0053] Through the above-mentioned different combinations, the headlight optical device can be used in scenes with a larger opening in the light-emitting area. At the same time, due to the simplified structure of the headlight optical device, the cost can be reduced and a wider range of promotion and application can be achieved.
[0054] On this basis, the embodiment of the present application also discloses a vehicle lamp, comprising any one of the vehicle lamp optical devices as described above. The vehicle lamp comprises the same structure and beneficial effects as the vehicle lamp optical device in the aforementioned embodiment. The structure and beneficial effects of the vehicle lamp optical device have been described in detail in the aforementioned embodiment and will not be repeated here.
[0055] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A vehicle light optical device, characterized in that: include: A first light guide system, the first light guide system includes a light guide and a first light guide member located on the light emitting side of the light guide, at least one end of the light guide is further provided with a first light source, light emitted by the first light source is incident on the light guide, is reflected in the light guide and is transmitted toward the first light guide member, and the light is reflected in the first light guide member and is refracted and emitted by the first light guide member.
2. The vehicle light optical device according to claim 1, characterized in that: The light guide is provided with a first light incident surface, light guide teeth and a first light emitting surface. The light emitted by the first light source enters the light guide through the first light incident surface and is reflected by the light guide teeth to be emitted toward the first light emitting surface.
3. The vehicle light optical device according to claim 1, characterized in that: The first light guide is provided with a second light incident surface, a first reflection surface and a second light emitting surface. The light emitted by the light guide enters the first light guide through the second light incident surface, is reflected by the first reflection surface, and is refracted toward the second light emitting surface.
4. The vehicle light optical device according to claim 3, characterized in that: The first light guide is a thick-walled concentrator, the light entrance of the thick-walled concentrator is a concentrating cup structure, and the light guide is located at the light entrance.
5. The vehicle light optical device according to claim 3 or 4, characterized in that: At least one second light guide system is also arranged on the rear side of the first light guide system. The second light guide systems each include a second light source and a second light guide member. The light emitted by the second light source enters the first light guide member after passing through the corresponding second light guide member and is emitted by the first light guide member.
6. The vehicle light optical device according to claim 5, characterized in that: The plurality of second light guide systems and the first light guide system are arranged in the front-to-back direction, and the light emitted by the second light guide system is incident on the first light guide member through the plurality of second light guide systems adjacent in sequence and then emitted.
7. The vehicle light optical device according to claim 5, characterized in that: A plurality of the second light guide systems are arranged in sequence and side by side on one side of the first reflecting surface. The light emitted by each second light source passes through the corresponding second light guide component, enters the first light guide component through the first reflecting surface of the first light guide component, and is emitted through the second light emitting surface of the first light guide component.
8. The vehicle light optical device according to claim 5, characterized in that: The second light guide includes a thick-walled concentrator.
9. The vehicle light optical device according to claim 5, characterized in that: The second light guide member at least includes a light guide or a reflector.
10. A vehicle lamp, characterized in that: A vehicle light optical device comprising any one of claims 1 to 9.