Optical system and vehicle lamp

Abstract

The invention discloses an optical system and an automobile lamp, and relates to the technical field of automobile lamps, the optical system is applied to the automobile lamp, the optical system comprises a light guide strip and a light source module used for emitting a light source, the light guide strip comprises a light incident face part, a total reflection face part and a plurality of light guide stripe parts, and the light incident face part is used for directly facing the light source module; the light inlet face part is used for guiding a light source emitted by the light source module to the total reflection face part in a concentrated mode to be reflected, so that the light source is transmitted towards the light guide stripe parts, the light source is evenly and linearly diverged in the arrangement direction of the light guide stripe parts, and multiple light rays which are consistent in direction and are arranged at equal intervals are formed. The light distribution requirement can be met without increasing the power of the light source, light rays can penetrate through the lamp without bright spots and dark areas, the light emitting face is effectively increased, a point light source is converted into a line light source which emits light evenly, and the color and the brightness are consistent.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, specifically to an optical system and a vehicle lamp. Background Technology

[0002] People's demands for automotive lighting extend beyond simply providing illumination; aesthetic requirements are becoming increasingly diverse. Light guides, diffusers, and thick-walled components are commonly used optical devices for signal lighting, utilizing the principle of total internal reflection to efficiently fulfill illumination needs while achieving a smooth, streamlined effect. Currently, the optical systems in automotive lighting systems are mostly constructed using the following three methods: The first optical system uses LEDs with diffuser to achieve uniform light emission. The larger the light-emitting surface, the more LEDs are needed, which leads to higher costs. The second optical system uses LEDs with thick-walled components, which results in high costs and poor uniformity of light emission. The third optical system uses LEDs with light guides to achieve uniform light emission, but the design of a shielding component at the light-guiding end to eliminate bright spots in the light source leads to a reduction in the light-emitting area and an increase in the dark area between adjacent lamps, making it impossible to achieve a continuous and uniformly lit optical effect between adjacent lamps.

[0003] Therefore, existing optical systems suffer from high manufacturing costs and the presence of dark / bright areas in the light-guiding end region. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide an optical system and vehicle lamp to solve the technical problems of high manufacturing cost and dark / bright areas in the light-guiding end region of the optical system in the background art.

[0005] One aspect of the present invention is to provide an optical system for use in vehicle lights, the optical system comprising a light guide strip and a light source module for emitting a light source; The light guide strip includes a light-incident surface, a total reflection surface, and multiple light guide stripes. The light-incident surface is positioned directly opposite the light source module. The light-incident surface is used to concentrate and guide the light source emitted by the light source module to the total internal reflection surface for reflection, so that the light source is transmitted toward the light guide stripe section. The light source is uniformly linearly diffused through the arrangement direction of the multiple light guide stripes to form multiple light rays with the same direction and spacing.

[0006] Furthermore, the light guide strip also includes a plurality of light guide teeth, which are disposed on opposite sides of the plurality of light guide stripes. Each light guide tooth is used to concentrate and guide a portion of the light emitted by the plurality of light guide stripes.

[0007] Furthermore, the plurality of light guide teeth are arranged sequentially along the length direction of the light guide stripe portion.

[0008] Furthermore, the optical system also includes a light-diffusing inner component, which is disposed on the light guide strip. At least one end face of the light-diffusing inner component is used to face the total reflection surface, so as to uniformly transmit light to the portion of the light source outside the light guide strip portion of the total reflection surface.

[0009] Furthermore, the light-monopolizing inner shroud is provided with a light-shielding portion, which occupies at least a portion of the area of ​​one side of the light-monopolizing inner shroud.

[0010] Furthermore, the guide strip is detachably connected to the light source module.

[0011] Another aspect of the present invention is to provide a vehicle lamp, the vehicle lamp including the optical system described above, the vehicle lamp including a housing, the optical system being mounted within the housing.

[0012] Furthermore, the headlight also includes a bracket, through which the optical system is mounted within the housing.

[0013] Furthermore, the headlight also includes a decorative frame and a lampshade for mounting on the housing.

[0014] Furthermore, the lampshade is used to be assembled before the decorative frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the optical system provided by this invention, the light guide strip includes an incident light surface, a total internal reflection surface, and multiple light guide stripes. This allows the light emitted from the light source module to be concentrated and guided by the incident light surface to the total internal reflection surface for reflection. Utilizing the reflection effect of the total internal reflection surface, the light source is directly transmitted towards the light guide stripes. The arrangement of the multiple light guide stripes uniformly and linearly disperses the light source, forming multiple rays with consistent direction and equal spacing. This configuration allows the light distribution requirements to be met without increasing the power of the light source, while also enabling the light to penetrate the dark areas of the lamp without bright spots. This effectively increases the light-emitting surface and converts the point light source into a uniformly emitting line light source, resulting in consistent color and brightness. Furthermore, this configuration reduces manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a first-view perspective perspective view of the optical system in one embodiment of the present invention; Figure 2 This is a second-view perspective perspective view of the optical system in one embodiment of the present invention; Figure 3 This is a third-view perspective view of the optical system in one embodiment of the present invention; Figure 4 This is a fourth-view perspective perspective view of the optical system in one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a vehicle lamp in one embodiment of the present invention.

[0017] In the diagram: 1. Light source module; 2. Light guide strip; 2.1. Light-incident surface; 2.2. Total internal reflection surface; 2.3. Light guide strip section; 2.4. Light guide teeth; 3. Inner light distribution; 3.1. Light shielding section; 4. Bracket; 5. Decorative frame; 6. Housing; 7. Lampshade. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] First Embodiment Please see Figures 1-5 The image shows an optical system in the first embodiment of the present invention. The optical system includes a light guide strip 2 and a light source module 1 for emitting a light source. It should be noted that in this example, the light source module 1 can be the light source module of a car lamp in the prior art, specifically an LED module, and the light source module 1 is used to emit a light source.

[0022] Specifically, in this example, in order to solve the technical problems of high manufacturing cost and dark / bright areas in the light-introducing end region of the optical system in the prior art, the light guide strip 2 in this example includes a light-introducing surface 2.1, a total reflection surface 2.2, and multiple light guide stripes 2.3; The light-incident surface 2.1 is used to face the light source module 1. The light-incident surface 2.1 is used to concentrate and guide the light source emitted by the light source module 1 to the total reflection surface 2.2 for reflection, so that the light source is transmitted towards the light guide stripe section 2.3, so that the light source is uniformly linearly diffused through the arrangement direction of multiple light guide stripes 2.3 to form multiple light rays with the same direction and the same spacing.

[0023] In other words, in this application, by configuring the light guide strip 2, which includes a light-incident surface 2.1, a total reflection surface 2.2, and multiple light guide strips 2.3, the light emitted by the light source module 1 is first concentrated and guided by the light-incident surface 2.1 to the total reflection surface 2.2 for reflection. Utilizing the reflection effect of the total reflection surface 2.2, the light source is directly transmitted to the light guide strips 2.3. The arrangement of the multiple light guide strips 2.3 uniformly and linearly disperses the light source to form multiple light rays with consistent direction and equal spacing. Through this configuration, the light distribution requirements can be met without increasing the power of the light source, and the light can penetrate the dark areas of the lamp without bright spots, effectively increasing the light-emitting surface. Furthermore, it converts the point light source into a uniformly emitting line light source, resulting in consistent color and brightness. At the same time, this configuration can also reduce manufacturing costs.

[0024] It should be noted that, given that linear light rays will be projected to the outside, in order to facilitate the concentration and guidance of the diverging linear light rays, in this example, the light guide strip 2 also includes a plurality of light guide teeth 2.4. The plurality of light guide teeth 2.4 are disposed on opposite sides of the plurality of light guide stripe portions 2.3. Each light guide tooth 2.4 is used to concentrate and guide the light rays that are commonly emitted by the plurality of light guide stripe portions 2.3. Specifically, the plurality of light guide teeth 2.4 are arranged sequentially along the length direction of the light guide stripe portion 2.3.

[0025] For details, please refer to [link / reference]. Figure 2 As shown, multiple light guide teeth 2.4 are specifically arranged in the middle part of one side of the light guide strip 2. When guiding the light source of the multiple light guide strips 2.3, each light guide tooth 2.4 is used to guide the light source of the multiple light guide strips 2.3 to each light guide tooth 2.4 respectively, and the light is concentrated by each light guide tooth 2.4, so that the light source is distributed more evenly.

[0026] Given that a small amount of light emitted from the light source module 1 will be reflected away from the total reflection surface 2.2 in a direction other than the light guide strip 2.3, in order to avoid the excess light causing bright spots, in this example, the optical system also includes a light-diffusing inner device 3. The light-diffusing inner device 3 is disposed on the light guide strip 2, and at least one end face of the light-diffusing inner device 3 is used to face the total reflection surface 2.2 so as to uniformly transmit light to the part of the light source that is transmitted away from the total reflection surface 2.2 in a direction other than the light guide strip 2.3. Specifically, the light-diffusing inner device 3 is provided with a light-shielding part 3.1, and the light-shielding part 3.1 occupies at least a portion of the area of ​​one side of the light-diffusing inner device 3.

[0027] It should be noted that the light-shielding part 3.1 is made by spraying light-shielding paint or aluminum plating on the front surface of the light-monopolizing inner distribution 3, and then laser engraving to form the laser engraved light-monopolizing inner distribution 3. The laser engraved light-monopolizing inner distribution 3 allows excess light sources to be evenly distributed again, further avoiding the generation of bright spots.

[0028] It should also be noted that in some preferred embodiments, the light guide strip 2 and the light source module 1 are detachably connected, specifically, the light source module 1 and the light guide strip 2 can be connected by clips, screws or rivets.

[0029] In summary, the optical system in the first embodiment of the present invention has at least the following beneficial effects: In the optical system provided by this invention, the light guide strip 2 includes a light-incident surface 2.1, a total reflection surface 2.2, and multiple light guide stripes 2.3. This allows the light emitted from the light source module 1 to be concentrated and guided by the light-incident surface 2.1 to the total reflection surface 2.2 for reflection. Utilizing the reflection effect of the total reflection surface 2.2, the light source is directly transmitted towards the light guide stripes 2.3. The arrangement of the multiple light guide stripes 2.3 uniformly and linearly disperses the light source, forming multiple rays with consistent direction and equal spacing. This configuration allows the light distribution requirements to be met without increasing the power of the light source, while also enabling the light to penetrate the dark areas of the lamp without bright spots, effectively increasing the light-emitting surface. Furthermore, it converts the point light source into a uniformly emitting line light source, resulting in consistent color and brightness. This configuration also reduces manufacturing costs.

[0030] Second Embodiment Please see Figure 5 The image shows a vehicle lamp in the second embodiment of the present invention. The vehicle lamp includes the optical system described in the first embodiment. The vehicle lamp includes a housing 6, and the optical system is used to assemble within the housing 6.

[0031] Specifically, in this embodiment, the vehicle headlight also includes a bracket 4, a decorative frame 5, and a lampshade 7. The optical system is mounted in the housing 6 via the bracket 4. The decorative frame 5 and the lampshade 7 are mounted on the housing 6, and the lampshade 7 is mounted in front of the decorative frame 5.

[0032] In summary, the vehicle headlights in the second embodiment of the present invention have at least the following beneficial effects: In the vehicle lamp provided by this invention, by adding an optical system to the lamp, the light guide strip 2 in the optical system includes a light-incident surface 2.1, a total reflection surface 2.2, and multiple light guide strips 2.3. The light emitted by the light source module 1 is first concentrated and guided by the light-incident surface 2.1 to the total reflection surface 2.2 for reflection. Utilizing the reflection effect of the total reflection surface 2.2, the light source is directly transmitted to the light guide strips 2.3. The arrangement direction of the multiple light guide strips 2.3 uniformly and linearly disperses the light source to form multiple light rays with consistent direction and equal spacing. Through this arrangement, the light distribution requirements can be met without increasing the power of the light source, and the light can penetrate the dark areas of the lamp without bright spots, effectively increasing the light-emitting surface. Furthermore, it converts the point light source into a uniformly emitting line light source, resulting in consistent color and brightness. At the same time, this arrangement can also reduce manufacturing costs.

[0033] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An optical system, characterized in that, When applied to automotive lights, the optical system includes a light guide strip and a light source module for emitting a light source; The light guide strip includes a light-incident surface, a total reflection surface, and multiple light guide stripes. The light-incident surface is positioned directly opposite the light source module. The light-incident surface is used to concentrate and guide the light source emitted by the light source module to the total internal reflection surface for reflection, so that the light source is transmitted toward the light guide stripe section. The light source is uniformly linearly diffused through the arrangement direction of the multiple light guide stripes to form multiple light rays with the same direction and spacing.

2. The optical system according to claim 1, characterized in that: The light guide strip also includes multiple light guide teeth, which are disposed on opposite sides of the multiple light guide stripes. Each light guide tooth is used to concentrate and guide a portion of the light emitted by the multiple light guide stripes.

3. The optical system according to claim 2, characterized in that: The plurality of light guide teeth are arranged sequentially along the length direction of the light guide stripe portion.

4. The optical system according to claim 1, characterized in that: The optical system further includes a light-diffusing inner component, which is disposed on the light guide strip. At least one end face of the light-diffusing inner component is used to face the total reflection surface to uniformly transmit light to the portion of the light source outside the light guide strip portion.

5. The optical system according to claim 4, characterized in that: The light-shielding inner shroud is provided with a light-shielding part, which occupies at least a portion of the area of ​​one side of the light-shielding inner shroud.

6. The optical system according to claim 1, characterized in that: The guide strip is detachably connected to the light source module.

7. A vehicle light, characterized in that: The vehicle light includes the optical system described in any one of claims 1 to 6, and the vehicle light includes a housing, wherein the optical system is used to be mounted within the housing.

8. The vehicle light according to claim 7, characterized in that: The headlight also includes a bracket, through which the optical system is mounted within the housing.

9. The vehicle light according to claim 7, characterized in that: The headlight also includes a decorative frame and a lampshade for mounting on the housing.

10. The vehicle lamp according to claim 9, characterized in that: The lampshade is used to assemble the decorative frame.

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