Optical system, vehicle lamp and vehicle

Abstract

This utility model relates to the field of automotive lighting, and more particularly to an optical system, an automotive lamp, and a vehicle. An optical system includes a light-emitting component and a colored light-transmitting element. The light-emitting component includes a light source and has a light-emitting area from which light from the light source can pass. The colored light-transmitting element has a different color than the light from the light source. The colored light-transmitting element can switch between a dimming position and a light-avoiding position. In the dimming position, the projection of the light-emitting area of ​​the light-emitting component along the light propagation direction at least partially overlaps with the colored light-transmitting element, allowing light from the light source to pass through the colored light-transmitting element. In the light-avoiding position, the projection of the light-emitting area of ​​the light-emitting component along the light propagation direction is offset from the colored light-transmitting element, allowing light from the light source to avoid the colored light-transmitting element. The colored light-transmitting element can selectively participate in the operation of the optical system to form two optical systems emitting different colors of light, enabling the reuse of automotive lamp functions using a single monochromatic light source.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting, and more particularly to an optical system, vehicle lighting, and vehicle. Background Technology

[0002] The front and rear lights of a vehicle have functions such as illumination, warning, turn indication and position indication, and play an important role in the safety of drivers, following vehicles and pedestrians.

[0003] To achieve reusable headlight functions, current automotive lighting optical systems employ two or more sets of LED light sources with different colors. For example, white and yellow light sources are used to reuse daytime running lights / front position lights as well as front turn signals. Another example is the use of red and yellow light sources to reuse rear position lights as well as rear turn signals. These reusable headlight solutions require at least two different colors of light to exist simultaneously in the optical system, resulting in higher costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing optical systems for realizing multiple functions of vehicle lights require at least two different light sources, which is costly. This utility model provides an optical system, vehicle lights, and vehicle that use a single set of monochromatic light sources to provide multiple functions.

[0005] To address the aforementioned problems, one embodiment of this utility model provides an optical system, including a light-emitting component and a colored light-transmitting element. The light-emitting component includes a light source and has a light-emitting area from which light from the light source is emitted. The color of the colored light-transmitting element is different from the color of the light source.

[0006] The colored light-transmitting element can be switched between a dimming position and a light-avoiding position. In the dimming position, the projection of the light-emitting area of ​​the light-emitting component along the light propagation direction overlaps at least partially with the colored light-transmitting element, so that the light from the light source can pass through the colored light-transmitting element and be emitted. In the light-avoiding position, the projection of the light-emitting area of ​​the light-emitting component along the light propagation direction is offset from the colored light-transmitting element, so that the light from the light source can avoid the colored light-transmitting element and be emitted.

[0007] Optionally, the light-emitting component further includes an optical element for propagating the light from the light source, the optical element having the light-emitting area; in the dimming position, the projection of the light-emitting area of ​​the optical element along the light propagation direction at least partially overlaps with the colored light-transmitting element, and the light from the light source is directed to the colored light-transmitting element through the optical element; in the light-shielding position, the projection of the light-emitting area of ​​the optical element along the light propagation direction is offset from the colored light-transmitting element.

[0008] Optionally, the optical system further includes a rotating shaft, on which the colored light-transmitting element is mounted. The colored light-transmitting element rotates around the rotating shaft to switch between the dimming position and the light-shielding position. The axial direction of the rotating shaft is perpendicular to the propagation direction of the light emitted from the light-emitting area.

[0009] Optionally, the colored light-transmitting component includes a bracket and a colored light-transmitting plate. The bracket is sleeved on the rotating shaft, and the colored light-transmitting plate is disposed on the bracket along one radial side of the rotating shaft. In the dimming position, the projection of the light-emitting area of ​​the optical element along the light propagation direction at least partially overlaps with the colored light-transmitting plate.

[0010] Optionally, the optical system further includes a translation component for driving the colored light-transmitting element to reciprocate along a first direction to switch between the dimming position and the light-avoiding position, wherein the first direction is perpendicular to the propagation direction of the light emitted from the light-emitting area.

[0011] Optionally, the colored light-transmitting component has a first light-transmitting surface and a second light-transmitting surface arranged opposite to each other. At the dimming position, the light from the light source enters through the first light-transmitting surface and exits through the second light-transmitting surface. The area of ​​the first light-transmitting surface is greater than or equal to the area of ​​the light-emitting region of the light-emitting component.

[0012] Optionally, at least one of the first and second light-transmitting surfaces is provided with an optical microstructure surface, which is composed of an array of multiple optical microstructure units, and is used to adjust the exit angle of the light after passing through the colored light-transmitting element.

[0013] Optionally, the optical microstructure unit is a raised structure or a raised unit attached to the surface of the colored light-transmitting element.

[0014] Optionally, the protrusion structure is a sawtooth, curved protrusion, square protrusion, conical protrusion, arc-shaped protrusion, or trapezoidal protrusion.

[0015] Optionally, it also includes a bracket. The colored light-transmitting element includes a rotating shaft and a colored light-transmitting plate. One end of the colored light-transmitting plate is connected to the outer wall of the rotating shaft. The rotating shaft is rotatably mounted on the bracket around its axis. In the dimming position, the light reflected by the optical element can pass through the colored light-transmitting plate and be emitted.

[0016] Optionally, the optical element is a thick-walled component, which includes a light-concentrating structure, a reflective surface, and a light-emitting surface. The light-concentrating structure is used to concentrate the light emitted by the light source. The light emitted by the light source is concentrated by the light-concentrating structure and then directed toward the reflective surface. The light emitted by the reflective surface is directed toward the colored light-transmitting component from the light-emitting surface.

[0017] Alternatively, the optical element is an arc-shaped reflector, and at the dimming position, the light emitted by the light source is reflected by the arc-shaped reflector and then directed toward the colored light-transmitting element;

[0018] Alternatively, the optical element is a light guide column, which has an input end and an output end. The light source is installed at the input end, and the light emitted by the light source is conducted through the light guide column and then directed from the output end to the colored light-transmitting component.

[0019] On the other hand, this utility model embodiment provides a vehicle lamp, including a lamp body and the aforementioned optical system.

[0020] On the other hand, this utility model embodiment provides a vehicle including the aforementioned vehicle lights.

[0021] This invention provides an optical system in which, in a dimming position, light from a light source is emitted through the light-emitting area of ​​a light-emitting component and directed towards a colored light-transmitting element. The light passes through the colored light-transmitting element and exits, and the color of the colored light-transmitting element differs from the color of the light source. Based on the principle of optical color mixing, the color of the light interacts with the colored light-transmitting element, changing the color of the light emitted from the element. This causes the optical system to emit a first color of light, fulfilling the first functional requirement of the vehicle headlight, such as a turn signal. In a light-avoiding position, light from the light source avoids the colored light-transmitting element, and the element does not interact with the light. The light exits directly at the color of the light source, causing the optical system to emit a second color of light, fulfilling the second functional requirement of the vehicle headlight, such as a position function. Thus, the colored light-transmitting element can selectively participate in the operation of the optical system, forming two optical systems that emit different colors of light, enabling the reuse of vehicle headlight functions. Both optical systems use the same monochromatic light source, avoiding waste, reducing the cost of the light source, and promoting energy conservation and environmental protection. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an optical system provided in one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of light propagation;

[0025] Figure 3 For light to pass through Figure 1 A schematic diagram of the colored light-transmitting component in the diagram;

[0026] Figure 4 for Figure 1 A schematic diagram of the first light-transmitting surface on a colored light-transmitting component;

[0027] Figure 5 for Figure 4 Cross-sectional views of the two optical microstructure surfaces;

[0028] Figure 6 yes Figure 1 A schematic diagram of the structure when the optical element is an arc-shaped reflector;

[0029] Figure 7 yes Figure 1 The diagram shows the structure when the optical element is a light guide column.

[0030] The reference numerals in the accompanying drawings are as follows:

[0031] 100. Light-emitting component; 1. Optical element; 2. Concentrating structure; 3. Reflective surface; 4. Light-emitting surface; 5. Colored light-transmitting component; 6. First light-transmitting surface; 7. Second light-transmitting surface; 8. Rotating shaft; 9. Support; 10. Optical microstructure surface; 11. PCB board; 12. Light source; 13. Arc-shaped reflector; 14. Light guide column. Detailed Implementation

[0032] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] Existing automotive lighting optical systems employ two or more sets of LED light sources with different colors to achieve reusability of lighting functions, resulting in high light source costs. Moreover, with different colored LED light sources mounted on the same PCB board, the spatial arrangement of these LEDs creates different mounting reference points for each color due to their inherent geometric dimensions. Consequently, at least one set of light sources may become out of focus, affecting the luminous flux utilization rate of the optical system.

[0034] To address the aforementioned problems, this invention provides an optical system.

[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an optical system including a light-emitting component 100 and a colored light-transmitting element 5. The light-emitting component 100 includes a light source 12 and has a light-emitting area from which light from the light source 12 is emitted. The color of the colored light-transmitting element 5 is different from the color of light from the light source 12.

[0036] The colored light-transmitting element 5 can be switched between a dimming position and a light-shielding position. In the dimming position, the projection of the light-emitting area of ​​the light-emitting component 100 along the light propagation direction overlaps at least partially with the colored light-transmitting element 5, so that the light from the light source 12 can pass through the colored light-transmitting element 5 and be emitted. In the light-shielding position, the projection of the light-emitting area of ​​the light-emitting component 100 along the light propagation direction is offset from the colored light-transmitting element 5, and the colored light-transmitting element 5 avoids the light path of the light emitted from the light-emitting area, so that the light from the light source 12 can be emitted through the colored light-transmitting element 5. The term "offset" means that the projection of the light-emitting area of ​​the light-emitting component 100 along the light propagation direction does not overlap with the colored light-transmitting element 5.

[0037] Among them, the colored light-transmitting component 5 is a light-transmitting material with color, and the shape, material and color of the colored light-transmitting component 5 can also be adjusted appropriately.

[0038] Specifically, Figure 1 The A in the text indicates the dimming position. Figure 1 In the B position, the light is shielded. When the optical system is applied to the headlight, the light from the light source 12 is emitted through the colored light-transmitting element 5. The color of the colored light-transmitting element 5 is different from the light color of the light source 12. Based on the principle of optical color mixing, the light color interacts with the colored light-transmitting element 5, and the light color emitted from the colored light-transmitting element 5 changes, so that the optical system emits the first light color to achieve the first functional requirement of the headlight, such as the turn signal function.

[0039] Moreover, the colored light-transmitting element 5 can have certain scattering characteristics, which can change the emission angle and propagation direction of light to adjust the light intensity according to the needs, which is conducive to meeting the light distribution requirements of different regulations, so that the optical system can be applied to more application scenarios and fields.

[0040] In the light-shielding position, the light from the light source 12 avoids the colored light-transmitting element 5 and does not interact with the light. The light is emitted directly in the light color of the light source 12, so that the optical system emits a second light color to achieve the second functional requirement of the vehicle light, such as the position function.

[0041] As can be seen, the colored light-transmitting element 5 can selectively participate in the operation of the optical system to form two optical systems that emit different colors of light, thus achieving multiplexing of vehicle lamp functions using a single monochromatic light source. Compared to achieving multiplexing of vehicle lamp functions using two sets of light sources 12, using the same monochromatic light source 12 for both optical systems avoids waste of the light source 12, reduces its cost, and is energy-saving and environmentally friendly. Moreover, this single light source 12 can achieve focusing, avoiding the situation where at least one light source is out of focus when using at least two light sources, thereby improving the luminous efficiency of the optical system. Therefore, this optical system can increase the freedom of vehicle lamp design.

[0042] It should be noted that this optical system is not only suitable for automotive lights, but also for other types of lighting fixtures and light display devices such as ambient lights. Ambient lights do not have specific regulatory requirements for light distribution performance and focus more on subjective performance. In ambient lights, the colored light-transmitting component 5 can be specially treated, for example, by using the anisotropy of liquid crystals to adjust the optical transmittance, thereby meeting diverse lighting design needs.

[0043] In one embodiment, the light source 12 is an LED light source or other vehicle lighting source.

[0044] It should be noted that the light source 12 can be switched on and off independently, and its drive can be configured to control different input luminous flux. There can be one or more light sources 12.

[0045] In one embodiment, the light-emitting component 100 further includes an optical element 1 for propagating light from the light source 12. The optical element 1 has a light-emitting region. In the dimming position, the projection of the light-emitting region of the optical element 1 along the light propagation direction at least partially overlaps with the colored light-transmitting element 5. In the light-shielding position, the projection of the light-emitting region of the optical element 1 along the light propagation direction is offset from the colored light-transmitting element 5. The "light-emitting region" of the optical element refers to the area from which light from the light source 12 is emitted from the optical element 1.

[0046] The two optical systems share the same light-emitting area of ​​optical element 1, instead of designing a partitioned structure for the light-emitting area, thus avoiding the waste of effective design area and meeting the requirements of different regulatory angles and light intensity distributions.

[0047] In one embodiment, such as Figure 1 As shown, the optical system also includes a rotating shaft 8, and a colored light-transmitting element 5 is mounted on the rotating shaft 8. The colored light-transmitting element 5 rotates around the rotating shaft 8 to switch between a light-adjusting position and a light-avoiding position. The axial direction of the rotating shaft 8 is perpendicular to the propagation direction of the light emitted from the light-emitting area.

[0048] The position of the colored light-transmitting element 5 is switched by rotating it. The rotational motion is simple and easy to implement.

[0049] In one embodiment, such as Figure 1 As shown, the colored light-transmitting element 5 rotates up and down around the pivot 8. In the dimming position, the colored light-transmitting element 5 hangs down from its upper end, allowing it to remain stable under its own weight without requiring any other self-locking structure. At this time, the colored light-transmitting element 5 is directly opposite the light-emitting area of ​​the optical element 1, meaning the projection of the light-emitting area along the light propagation direction completely overlaps with the colored light-transmitting element 5. During the switching from the dimming position to the light-shielding position, the lower end of the colored light-transmitting element 5 rotates upward. In the light-shielding position, the pivot 8 is either higher than the upper edge of the light-emitting area of ​​the optical element 1, or lower than the lower edge of the light-emitting area of ​​the optical element 1.

[0050] Specifically, in the dimming position, the colored light-transmitting element 5 is in a vertical state, and in the front-rear direction of the vehicle, the surface of the colored light-transmitting element 5 faces the light-emitting area of ​​the optical element 1; in the light-avoiding position, the colored light-transmitting element 5 is in a horizontal state, and the colored light-transmitting element 5 avoids the light path of the light emitted from the light-emitting area of ​​the optical element 1.

[0051] In one embodiment, the colored light-transmitting element 5 is rotated by a motor.

[0052] In one embodiment, such as Figure 1 As shown, during the switching from the dimming position to the light-shielding position, the lower end of the colored light-transmitting element 5 rotates away from the optical element 1 to avoid the colored light-transmitting element 5 in the light-shielding position occupying the space between the optical element 1 and the colored light-transmitting element 5, so that the colored light-transmitting element 5 and the optical element 1 can be arranged compactly.

[0053] In other embodiments, the colored light-transmitting element 5 can rotate left and right around the rotating shaft 8. At this time, the rotating shaft 8 can extend in the vertical direction. In the dimming position, the colored light-transmitting element 5 is directly facing the light-emitting area of ​​the optical element 1; in the light-shielding position, the colored light-transmitting element 5 is located outside the light-emitting area of ​​the optical element 1 in the left and right directions.

[0054] The term "left and right rotation" refers to the change in position of the rotating end of the colored light-transmitting component 5 in the left and right directions of the vehicle during the rotation process.

[0055] In other embodiments, the optical system may further include a translation component for driving the colored light-transmitting element 5 to reciprocate along a first direction to switch between a dimming position and a light-avoiding position. In the dimming position, the colored light-transmitting element 5 faces the light-emitting area of ​​the optical element 1, and the first direction is perpendicular to the propagation direction of the light emitted from the light-emitting area.

[0056] During the process of switching from the dimming position to the light-avoiding position, the colored light-transmitting element 5 moves along the first direction toward the edge of the light-emitting area of ​​the optical element 1 until it leaves the light-emitting area of ​​the optical element 1.

[0057] Specifically, the translation component can be a combination of a hydraulic cylinder, a pneumatic cylinder, or a motor and a lead screw and nut mechanism.

[0058] In one embodiment, the colored light-transmitting element 5 includes a bracket 9 and a colored light-transmitting plate. The bracket 9 is sleeved on the rotating shaft 8, and the colored light-transmitting plate is disposed on the bracket 9 along one radial side of the rotating shaft 8. In the dimming position, the projection of the light-emitting area of ​​the optical element 1 along the light propagation direction at least partially overlaps with the colored light-transmitting plate.

[0059] The bracket 9 and the colored light-transmitting plate can be integrally formed or processed separately. When processed separately, the bracket 9 and the colored light-transmitting plate can be welded or connected by fasteners.

[0060] It should be noted that when the bracket 9 is connected to the upper side of the colored light-transmitting plate, the bottom of the bracket 9 is not lower than the highest point of the light-emitting area of ​​the light-emitting component 100 in the vertical direction. When the bracket 9 is connected to the lower side of the colored light-transmitting plate, the top of the bracket 9 is not higher than the lowest point of the light-emitting area of ​​the light-emitting component 100 in the vertical direction, so as to avoid the bracket 9 blocking the light-emitting area.

[0061] In one embodiment, the colored light-transmitting plate can be a flat plate structure or a plate-shaped structure with a certain curvature.

[0062] In one embodiment, such as Figure 1 and Figure 3 As shown, the colored light-transmitting element 5 has a first light-transmitting surface 6 and a second light-transmitting surface 7 arranged opposite to each other. In the dimming position, the light emitted by the light source 12 enters through the first light-transmitting surface 6 and exits through the second light-transmitting surface 7. The area of ​​the first light-transmitting surface 6 is greater than or equal to the area of ​​the light-emitting area of ​​the light-emitting component 100, so that all the light emitted from the light-emitting area of ​​the light-emitting component 100 can interact with the colored light-transmitting element 5 to change the color of all the emitted light.

[0063] In one embodiment, such as Figure 4 As shown, at least one of the first light-transmitting surface 6 and the second light-transmitting surface 7 is provided with an optical microstructure surface 10. The optical microstructure surface 10 is composed of an array of multiple optical microstructure units. The optical microstructure surface 10 is used to adjust the exit angle of light after passing through the colored light-transmitting element 5, so that the colored light-transmitting element 5 changes the propagation direction of light through the optical microstructure surface 10. This is beneficial for the optical system to meet different regulatory angle and light intensity distribution requirements, and is more conducive to meeting the light distribution requirements of different signal light regulations.

[0064] According to Fresnel's principle, the direction of light propagation can be changed by controlling the refractive index of the colored light-transmitting element 5. At the same time, the direction of light propagation can be adjusted by relying on the optical microstructure surface 10. Combined with ray tracing analysis, the angle of the optical microstructure surface 10 can be used to deflect the light and control the direction of light emission.

[0065] in, Figure 4 In the diagram, (a), (b), and (c) represent three forms in which the optical microstructure surface 10 is provided on the first light-transmitting surface 6. (a) indicates that the optical microstructure surface 10 is provided on a single area of ​​the first light-transmitting surface 6, in which case the optical microstructure surface 10 can only change the exit angle of light passing through that single area. (b) indicates that the optical microstructure surface 10 is provided on two areas of the first light-transmitting surface 6, in which case the optical microstructure surface 10 can only change the exit angle of light passing through those two areas. (c) indicates that the optical microstructure surface 10 is provided on the entire area of ​​the first light-transmitting surface 6, in which case the optical microstructure surface 10 can change the exit angle of all light passing through the colored light-transmitting element 5.

[0066] In one embodiment, the optical microstructure unit is a raised structure integrally formed on the surface of the colored light-transmitting element 5. In other embodiments, the optical microstructure unit can be a groove structure.

[0067] In one embodiment, the protrusion structure is a sawtooth, curved protrusion, rectangular protrusion, conical protrusion, trapezoidal protrusion, or it can be an arc-shaped structure or an irregular structure.

[0068] Specifically, such as Figure 5 The diagram shows (a) as a cross-sectional view of the optical microstructure surface 10 composed of continuously connected curved protrusions, and (b) as a cross-sectional view of the optical microstructure surface 10 composed of continuously connected sawtooth patterns. Figure 4 The raised structures shown in (a) and (b) are both smooth structures, which facilitate the molding of the colored light-transmitting part 5 during injection molding.

[0069] It should be noted that the above are just examples of common protruding structures and are not limitations on the optical microstructure on the colored light-transmitting component 5.

[0070] In other embodiments, the optical microstructure unit is a raised unit attached to the surface of the colored light-transmitting element 5. This raised unit can be a metal unit, which can be in the shape of a line, a cross, etc. Of course, the raised unit can also be a liquid crystal unit.

[0071] In one embodiment, the optical element 1 is a thick-walled component, which includes a light-concentrating structure 2, a reflective surface 3, and a light-emitting surface 4. The light-concentrating structure 2 is used to concentrate the light emitted by the light source 12. The light emitted by the light source 12 is concentrated by the light-concentrating structure 2 and then directed toward the reflective surface 3. The light reflected by the reflective surface 3 can be directed from the light-emitting surface 4 toward the colored light-transmitting component 5. The reflective surface 3 has the aforementioned light-emitting area.

[0072] in, Figure 1 and Figure 2 The optical element 1 is a thick-walled component. The light-concentrating structure 2, the reflecting surface 3, and the light-emitting surface 4 of the thick-walled component can be integrally formed or assembled together after separate processing to form a thick-walled component.

[0073] In other embodiments, such as Figure 6 As shown, optical element 1 can be an arc-shaped reflector 13. In the dimming position, the light emitted by the light source 12 is reflected by the arc-shaped reflector 13 and can then be directed towards the colored light-transmitting element 5. Figure 6 As can be seen, the light source 12 is mounted on the PCB board 11, and the light source 12 is located above the arc-shaped reflector 13, while the colored light-transmitting element 5 is located to the side of the arc-shaped reflector 13.

[0074] In other embodiments, such as Figure 7As shown, the optical element 1 can be a light guide column 14, which has an input end and an output end. The light source 12 is installed at the input end, and the light emitted by the light source 12 can be transmitted from the output end to the colored light-transmitting element 5 after being conducted by the light guide column 14.

[0075] In addition, one embodiment of the present invention provides a vehicle lamp, including a vehicle lamp body and an optical system as described in any of the above embodiments. The optical system is installed on the vehicle lamp body, and the vehicle lamp body mainly includes a lamp holder, a lamp cover, and electrical connectors.

[0076] In addition, one embodiment of this utility model provides a vehicle including the headlights described in the above embodiment.

[0077] This headlight can serve as a headlight. In this position, the light source 12 emits white light, and the colored light-transmitting element 5 emits yellow light, satisfying the white and yellow light color requirements of the headlight optical system. Specifically, in the dimming position, the white light emitted by the light source 12 passes through the colored light-transmitting element 5 and is emitted. The white light interacts with the yellow colored light-transmitting element 5, changing the color of the light emitted from the colored light-transmitting element 5 to yellow, causing the headlight to emit yellow light for use as a turn signal. In the light-shielding position, the white light emitted by the light source 12 does not interact with the colored light-transmitting element 5 and is emitted directly from the headlight, causing the headlight to emit white light for use as a daytime running light or position light, thus achieving multiple functions of the headlight through a single light source 12.

[0078] This headlight can also function as a taillight. In this case, the light source 12 can emit red light, and the colored light-transmitting element 5 can emit green light, satisfying the headlight's optical system requirements for both red and yellow light colors. Specifically, in the dimming position, the red light emitted by the light source 12 passes through the colored light-transmitting element 5. The red light interacts with the green colored light-transmitting element 5, changing the color of the light emitted from the colored light-transmitting element 5 to yellow, causing the headlight to emit yellow light, which can be used as a rear turn signal. In the light-shielding position, the red light emitted by the light source 12 does not interact with the colored light-transmitting element 5, and the headlight emits red light, serving as a rear position light. This allows for the reuse of headlight functions using a single light source 12.

[0079] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An optical system, characterized in that, It includes a light-emitting component (100) and a colored light-transmitting component (5). The light-emitting component (100) includes a light source (12). The light-emitting component (100) has a light-emitting area from which light from the light source (12) is emitted. The color of the colored light-transmitting component (5) is different from the color of the light source (12). The colored light-transmitting element (5) can be switched between a dimming position and a light-avoiding position. In the dimming position, the projection of the light-emitting area of ​​the light-emitting component (100) along the light propagation direction overlaps at least partially with the colored light-transmitting element (5) so that the light from the light source (12) can pass through the colored light-transmitting element (5) and be emitted. In the light-avoiding position, the projection of the light-emitting area of ​​the light-emitting component (100) along the light propagation direction is offset from the colored light-transmitting element (5) so that the light from the light source (12) can avoid the colored light-transmitting element (5) and be emitted.

2. The optical system according to claim 1, characterized in that, The light-emitting component (100) further includes an optical element (1) for propagating the light from the light source (12), and the optical element (1) has the light-emitting area; in the dimming position, the projection of the light-emitting area of ​​the optical element (1) along the light propagation direction overlaps at least partially with the colored light-transmitting element (5), and the light from the light source (12) is directed to the colored light-transmitting element (5) through the optical element (1); in the light-avoiding position, the projection of the light-emitting area of ​​the optical element (1) along the light propagation direction is offset from the colored light-transmitting element (5).

3. The optical system according to claim 2, characterized in that, The optical system also includes a rotating shaft (8), on which the colored light-transmitting element (5) is sleeved. The colored light-transmitting element (5) rotates around the rotating shaft (8) to switch between the dimming position and the light-avoiding position. The axial direction of the rotating shaft (8) is perpendicular to the propagation direction of the light emitted from the light-emitting area.

4. The optical system according to claim 3, characterized in that, The colored light-transmitting component (5) includes a bracket (9) and a colored light-transmitting plate. The bracket (9) is sleeved on the rotating shaft (8). The colored light-transmitting plate is disposed on the bracket (9) along one radial side of the rotating shaft (8). At the dimming position, the projection of the light-emitting area of ​​the optical element (1) along the light propagation direction overlaps at least partially with the colored light-transmitting plate.

5. The optical system according to claim 2, characterized in that, The optical system further includes a translation component, which is used to drive the colored light-transmitting element (5) to reciprocate along a first direction to switch between the dimming position and the light-avoiding position. The first direction is perpendicular to the propagation direction of the light emitted from the light-emitting area.

6. The optical system according to claim 1, characterized in that, The colored light-transmitting component (5) has a first light-transmitting surface (6) and a second light-transmitting surface (7) arranged opposite to each other. At the dimming position, the light from the light source (12) enters through the first light-transmitting surface (6) and exits through the second light-transmitting surface (7). The area of ​​the first light-transmitting surface (6) is greater than or equal to the area of ​​the light-emitting region of the light-emitting component (100).

7. The optical system according to claim 6, characterized in that, An optical microstructure surface (10) is provided on at least one of the first light-transmitting surface (6) and the second light-transmitting surface (7). The optical microstructure surface (10) is composed of an array of multiple optical microstructure units. The optical microstructure surface (10) is used to adjust the emission angle of the light after it passes through the colored light-transmitting element (5).

8. The optical system according to claim 7, characterized in that, The optical microstructure unit is a raised structure integrally formed on the surface of the colored light-transmitting component (5) or a raised unit attached to the surface of the colored light-transmitting component (5).

9. The optical system according to claim 8, characterized in that, The protrusion structure can be a sawtooth, curved protrusion, rectangular protrusion, conical protrusion, arc protrusion, or trapezoidal protrusion.

10. The optical system according to claim 2, characterized in that, The optical element (1) is a thick-walled component, which includes a light-concentrating structure (2), a reflective surface (3), and a light-emitting surface (4). The light emitted by the light source (12) is focused by the light-concentrating structure (2) and then directed toward the reflective surface (3). The light reflected by the reflective surface (3) can then be emitted from the light-emitting surface (4). Alternatively, the optical element (1) is an arc-shaped reflector (13), and at the dimming position, the light emitted by the light source (12) can be reflected by the arc-shaped reflector (13) and directed toward the colored light-transmitting element (5). Alternatively, the optical element (1) is a light guide column (14), which has an input end and an output end. The light source (12) is installed at the input end. At the dimming position, the light emitted by the light source (12) is transmitted through the light guide column (14) and can be directed from the output end to the colored light-transmitting element (5).

11. A vehicle light, characterized in that, The device includes a headlight body and an optical system according to any one of claims 1 to 10, wherein the optical system is mounted on the headlight body.

12. A vehicle, characterized in that, Includes the vehicle lights as described in claim 11.

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