Optical system, vehicle lamp and vehicle

Abstract

This invention provides an optical system, a vehicle lamp, and a vehicle. The optical system includes a first light source, a second light source, and a first primary optical element and a second primary optical element arranged in parallel. Lenses are arranged on the light-emitting sides of the first and second optical elements, and a reflection unit is arranged in the light-emitting path of the second primary optical element on the side away from the first primary optical element. In this invention, the first primary optical element collects the light emitted from the first light source and adjusts the propagation path of the light, causing the light to exit through the lens into external space and project to form a first light pattern. The second primary optical element collects a portion of the light emitted from the second light source and adjusts the propagation path of the light, causing this portion of the light to exit through the lens into external space and project to form a second light pattern. Simultaneously, at least a portion of the light emitted by the second primary optical element is reflected by the reflection unit and then exits through the lens into external space, thereby increasing the longitudinal broadening of the second light pattern.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle lighting design technology, and in particular relates to an optical system, a vehicle lighting system, and a vehicle. Background Technology

[0002] In recent years, with the development trend of automotive intelligence and the continuous improvement of regulatory requirements, the field of automotive lighting has also made many corresponding adjustments and progress.

[0003] Taking vehicle headlights as an example, headlights include high beam and low beam modules. For integrated high and low beam optical modules, the high beam module is usually positioned above the low beam module. In the limited installation space, to ensure the light pattern of the lower low beam module meets regulatory requirements, the primary optical element of the low beam module is relatively large. This limits the size of the primary optical element of the upper high beam module, preventing it from being designed large enough and consequently restricting the width of the high beam pattern. To improve the vertical width of the high beam pattern, existing solutions typically involve changing the structure of the lens or primary optical element. This approach increases manufacturing complexity and introduces additional light loss into the overall light pattern.

[0004] For example, in application number 202120039391.3, patent titled Primary optical element, optical module and vehicle light, a dual-row high beam module using silicone material in the form of a concentrator is disclosed. It can adjust the energy distribution of the overall light pattern by modulating a single concentrator. However, the primary optical element in this solution usually requires extremely high production precision, good heat dissipation conditions and many limiting structural components to ensure the output of the overall light pattern, resulting in high manufacturing difficulty and cost. Utility Model Content

[0005] This invention provides an optical system, a vehicle headlight, and a vehicle to solve the technical problems of conventional high beam modules, where the primary optical elements are limited by the size of the low beam module, making it difficult to design them large enough to achieve sufficient longitudinal width, and the complex structure leads to high production difficulty and additional light loss.

[0006] To solve the above problems, the technical solution of this utility model is: an optical system, comprising: A first optical unit, the first optical unit comprising a first light source and a first primary optical element; The second optical unit includes a second light source and a second primary optical element, wherein the second primary optical element and the first primary optical element are arranged in parallel. A lens, wherein the lens is arranged on the light-emitting side of the first optical unit and the second optical unit; A reflection unit is arranged in the light-emitting path of the second primary optical element on the side away from the first primary optical element; The first optical unit is configured such that the first primary optical element collects the light emitted from the first light source and adjusts the propagation path of the light, and then causes the light to be emitted into the external space through the lens and projected to form a first light pattern; The second optical unit is configured such that the second primary optical element collects a portion of the light emitted from the second light source and adjusts the propagation path of the light, and then causes this portion of the light to be emitted into the external space through the lens and projected to form a second light pattern. At the same time, at least a portion of the light emitted through the second primary optical element is reflected by the reflection unit and emitted into the external space through the lens, thereby increasing the longitudinal broadening of the second light pattern.

[0007] In one or more embodiments, the first light source includes a plurality of linearly arranged first sub-light sources, and the first primary optical element includes a plurality of linearly arranged first collimating optical element units, wherein each of the first collimating optical element units is provided with at least one first sub-light source. The second light source includes a plurality of linearly arranged second sub-light sources, and the second primary optical element includes a plurality of linearly arranged second collimating optical element units, wherein each second collimating optical element unit is provided with at least one corresponding second sub-light source.

[0008] In one or more embodiments, a plurality of the first collimating optical element units and the first sub-light source are arranged sequentially in a straight line or curve along the same trend; Several second collimating optical element units and the second sub-light source are arranged sequentially in a straight line or curve along the same trend.

[0009] In one or more embodiments, the first collimating optical element unit and / or the second collimating optical element unit is a mirror or a small lens.

[0010] In one or more embodiments, the first primary optical element and the second primary optical element are arranged in parallel along the longitudinal or transverse direction.

[0011] In one or more embodiments, the reflecting surface of the reflecting unit is a plane or a curved surface.

[0012] In one or more embodiments, the first primary optical element and the second primary optical element are fixedly connected as an integral structure.

[0013] In one or more embodiments, a heat dissipation unit is further included, the heat dissipation unit having an integral structure, and the first light source and the second light source being disposed on the heat dissipation unit.

[0014] In one or more embodiments, the lens is a convex lens.

[0015] In one or more embodiments, the first primary optical element and the second primary optical element are arranged in parallel and located on both sides of the optical axis of the lens, and the focal point of the lens is located at the first light source or on the first primary optical element or within 10 mm of both, or the focal point of the lens is located at the second light source or on the second primary optical element or within 10 mm of both.

[0016] Based on the same concept, this utility model also provides a vehicle lamp, including: an optical system as described in any one of the above.

[0017] In one or more embodiments, at least a control unit including the first optical unit is electrically connected to the vehicle control system, and the first optical unit is configured to realize dynamic steering of the first optical pattern according to the vehicle's rotation.

[0018] Based on the same concept, this utility model also provides a vehicle, including: vehicle lights as described in any one of the above.

[0019] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art: This invention provides an optical system, a vehicle lamp, and a vehicle. The optical system includes a first optical unit and a second optical unit. The light generated by the first and second optical units is passed through lenses to form a first light pattern and a second light pattern, respectively. A reflection unit is also provided on one side of the second optical unit. The reflection unit is used to reflect part of the light generated by the second optical unit and then exit through a lens to form a third light pattern that increases the longitudinal width of the second light pattern. Thus, when applied to high and low beam optical systems, the longitudinal width of the high beam pattern is increased without changing the structure of the first and second primary optical elements. Moreover, it is easy to manufacture, does not increase additional light loss, and effectively improves the illumination performance of the optical system.

[0020] Details of one or more embodiments of the present invention will be set forth in the following drawings and description, and other features, objects and advantages of the present invention will become apparent from the specification, drawings and claims. Attached Figure Description

[0021] Figure 1 One of the structural schematic diagrams of the first structure of the optical system provided by this utility model; Figure 2 The second schematic diagram of the first structure of the optical system provided by this utility model; Figure 3One of the structural schematic diagrams of the second structure of the optical system provided by this utility model; Figure 4 The second schematic diagram of the second structure of the optical system provided by this utility model; Figure 5 A schematic diagram of the second optical pattern of an optical system without a reflector; Figure 6 A schematic diagram of the first optical pattern of an optical system without a reflector. Figure 7 This utility model provides a schematic diagram of the optical pattern combination of the second and third optical patterns of the optical system. Figure 8 A schematic diagram of the first optical pattern of the optical system provided by this utility model; Figure 9 A schematic diagram of the lens focal position of the optical system provided by this utility model; Figure 10 This utility model provides a schematic diagram of the optical path of the second optical unit. Figure 11 This utility model provides a schematic diagram of the optical path of the first optical unit.

[0022] Explanation of reference numerals in the attached figures: 1: First optical unit; 11: First light source; 111: First sub-light source; 12: First primary optical element; 121: First collimating optical element unit; 2: Second optical unit; 21: Second light source; 211: Second sub-light source; 22: Second primary optical element; 221: Second collimating optical element unit; 3: Lens; 4: Reflection unit; 5: Lens focal point position. Detailed Implementation

[0023] The optical system, vehicle lamp, and vehicle proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description and claims.

[0024] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0026] like Figures 1 to 4 , Figure 10 , Figure 11 As shown, the first aspect of this utility model provides an optical system, which includes a first optical unit 1, a second optical unit 2, a lens 3, and a reflection unit 4.

[0027] The first optical unit 1 includes a first light source 11 and a first primary optical element 12. The first light source 11 is used in the first optical unit 1 to provide initial light input, and the first primary optical element 12 is used to adjust the propagation path of the light provided by the first light source 11.

[0028] The second optical unit 2 includes a second light source 21 and a second primary optical element 22. Similarly, the second light source 21 is used in the second optical unit 2 to provide initial light input, and the second primary optical element 22 is used to adjust the propagation path of the light provided by the second light source 21.

[0029] Furthermore, the second primary optical element 22 is arranged in parallel with the first primary optical element 12.

[0030] The first light source 11 and the second light source 21 can be LEDs, laser light sources, filament bulbs, gas discharge lamps, etc., but this embodiment is not limited to these.

[0031] Lens 3 is arranged on the light-emitting side of the first optical unit 1 and the second optical unit 2, and the space on the side of lens 3 away from the first optical unit 1 and the second optical unit 2 is defined as the external space.

[0032] The reflection unit 4 is arranged in the light-emitting path of the second primary optical element 22 on the side away from the first primary optical element 12. It should be noted that, limited by the arrangement position of the reflection unit 4, in this embodiment, the reflection unit 4 only reflects part of the light emitted from the edge of the second primary optical element 22, without affecting the propagation path of the light emitted from the first primary optical element 12.

[0033] This embodiment provides an optical system in which a first optical unit 1 is configured such that a first primary optical element 12 collects light emitted from a first light source 11 and adjusts the propagation path of the light, and then the light is emitted into the external space through a lens 3 and projected to form a first light pattern; a second optical unit 2 is configured such that a second primary optical element 22 collects a portion of the light emitted from a second light source 21 and adjusts the propagation path of the light, and then this portion of the light is emitted into the external space through a lens 3 and projected to form a second light pattern. At the same time, at least a portion of the light emitted by the second primary optical element 22 is reflected by a reflection unit 4 and emitted into the external space through a lens 3 to increase the longitudinal broadening of the second light pattern. Thus, when applied to far- and near-beam optical systems, the longitudinal broadening of the far-beam light pattern is increased without changing the structure of the first primary optical element 12 and the second primary optical element 22, and the system is easy to manufacture, does not increase additional light loss, and improves the illumination performance of the optical system.

[0034] The specific structure and functions of the optical system provided in this embodiment will be described in further detail below: In one or more embodiments, the first light source 11 includes a plurality of linearly arranged first sub-light sources 111, and the first primary optical element 12 includes a plurality of linearly arranged first collimating optical element units 121, wherein each first collimating optical element unit 121 is provided with at least one corresponding first sub-light source 111.

[0035] The corresponding arrangement relationship between the first collimating optical element unit 121 and the first sub-light source 111 includes that any first collimating optical element unit 121 corresponds to a set of first sub-light sources 111, or that a whole composed of multiple sets of first collimating optical element units 121 corresponds to a set of first sub-light sources 111.

[0036] Similarly, the second light source 21 includes a plurality of linearly arranged second sub-light sources 211, and the second primary optical element 22 includes a plurality of linearly arranged second collimating optical element units 221, and each second collimating optical element unit 221 is provided with at least one corresponding second sub-light source 211.

[0037] The corresponding arrangement relationship between the second collimating optical element unit 221 and the second sub-light source 211 includes that each second collimating optical element unit 221 corresponds to a set of second sub-light sources 211, or that a whole composed of multiple sets of second collimating optical element units 221 corresponds to a set of second sub-light sources 211.

[0038] In this embodiment, the distribution of sub-light sources and collimating optical elements helps to precisely control the light pattern and beam distribution, realize the combination of complex light patterns, and improve the stability and reliability of light output.

[0039] In one or more embodiments, a plurality of first collimating optical element units 121 and first sub-light sources 111 are arranged sequentially in a straight line or curve along the same trend, and a plurality of second collimating optical element units 221 and second sub-light sources 211 are arranged sequentially in a straight line or curve along the same trend, thereby realizing the flexible arrangement of the first optical unit 1 and the second optical unit 2 in the optical system, and being able to generate different optical output light patterns according to actual usage requirements.

[0040] like Figures 1 to 4 As shown, in one or more embodiments, the first collimating optical element unit 121 and / or the second collimating optical element unit 221 is a mirror or a small lens.

[0041] When the first collimating optical element unit 121 and / or the second collimating optical element unit 221 uses a reflector, the first light source 11 and the second light source 21 are arranged to correspond to the reflective surfaces of the first collimating optical element unit 121 and the second collimating optical element unit 221, respectively. The first collimating optical element unit 121 and the second collimating optical element unit 221 reflect the light emitted from the first light source 11 and the second light source 21, respectively, so that the light is transmitted toward the lens 3.

[0042] When the first collimating optical element unit 121 and / or the second collimating optical element unit 221 uses a small lens, the first light source 11 and the second light source 21 are arranged to correspond to the light incident surfaces of the first collimating optical element unit 121 and the second collimating optical element unit 221, respectively. The first collimating optical element unit 121 and the second collimating optical element unit 221 respectively converge the light emitted from the first light source 11 and the second light source 21, so that the light is transmitted toward the lens 3.

[0043] The first collimating optical element unit 121 and the second collimating optical element unit 221 may both employ a reflector, or both employ a small lens, or one may employ a reflector and the other a small lens.

[0044] In one or more embodiments, the first primary optical element 12 and the second primary optical element 22 are arranged in parallel along the longitudinal or transverse direction.

[0045] Taking a longitudinal distribution (such as the first primary optical element 12 being positioned above the second primary optical element 22) as an example, the first primary optical element 12 collects the light emitted from the first light source 11, and then emits this portion of the light through the lens 3 to form a first light pattern; the second primary optical element 22 collects the light emitted from the second light source 21, and then emits a portion of the light through the lens 3 to form a second light pattern, and another portion of the light emitted through the second primary optical element 22 is transmitted to the reflection unit 4, and after being reflected by the reflection unit 4, it is emitted by the lens 3 to form a third light pattern. The combination of the third light pattern and the second light pattern increases the longitudinal width of the second light pattern. In this embodiment, since the first primary optical element 12 is located above the second primary optical element 22, the light emitted from the first optical unit 1, after being projected by the lens 3, forms a first light pattern below the second and third light patterns. Therefore, in practical applications, the first primary optical element 12 can serve as the primary optical element of the low beam module, with the first light pattern being the low beam pattern. The second primary optical element 22 can serve as the primary optical element of the high beam module, with the second and third light patterns combined to form the high beam pattern. Based on the optical system of this embodiment, the arrangement of the reflection unit 4 allows the high beam pattern to have a greater longitudinal width, resulting in a larger illumination range for the high beam module and improving its lighting effect, while the low beam pattern still meets relevant regulatory requirements.

[0046] Of course, in other embodiments, the first primary optical element 12 may also be arranged laterally relative to the second primary optical element 22. By adjusting the optical parameters of the first primary optical element 12, the second primary optical element 22, the reflector 4, the lens 3 and other optical elements, the first light pattern can be projected below the position relative to the second and third light patterns. The first light pattern is used as a near-beam light pattern, and the second and third light patterns are used as far-beam light patterns.

[0047] like Figures 5 to 8 This allows us to clearly understand the light energy and broadening distribution of the first and second light patterns achieved by the optical system in this embodiment. Figure 5 The position of the second beam pattern on the light distribution screen is shown when the reflector 4 is not installed. It is located above the H-axis and can be used as a high beam pattern. Figure 6 The position of the first beam pattern on the light distribution screen is shown when the reflector 4 is not provided. It is located below the H-axis and can be used as a near beam pattern. Figure 7 A schematic diagram of the combined light pattern after the second and third light patterns are set with reflector 4; Figure 8 This is a schematic diagram of the first beam pattern after the reflector 4 is installed. It is clear that the reflector 4 increases the longitudinal width of the high beam pattern, resulting in a larger high beam illumination range, but the reflector 4 does not affect the low beam pattern. It should be noted that the beam distribution screen is a vertical screen positioned 25 meters in front of the vehicle, and the H-axis refers to the 0° line in the horizontal direction on the beam distribution screen.

[0048] In one or more embodiments, the reflecting surface of the reflecting unit 4 is a plane or a curved surface, which can be set according to actual usage requirements.

[0049] In one or more embodiments, the first primary optical element 12 and the second primary optical element 22 are fixedly connected as an integral structure. This integral structure is constructed by having the first primary optical element 12 and the second primary optical element 22 as independent components, fixedly connected during assembly through fastener coupling, bonding, or other methods. Alternatively, the first primary optical element 12 and the second primary optical element 22 can be directly manufactured using an integral molding process during production. This integral structure design of the first primary optical element 12 and the second primary optical element 22 helps improve the installation accuracy of the optical system and ensures the stability of the light pattern.

[0050] In one or more embodiments, the optical system further includes a heat dissipation unit. The heat dissipation unit adopts an integrated structure, and the first light source 11 and the second light source 12 are disposed on the heat dissipation unit. The heat dissipation unit dissipates heat from the optical system to prevent damage to the optical system, and the integrated structure of the heat dissipation unit helps to simplify the complexity of heat dissipation unit assembly.

[0051] In one or more embodiments, lens 3 is a convex lens. The convex lens further converges the light rays and projects them to form a first light pattern, a second light pattern, and a third light pattern.

[0052] In one or more embodiments, such as Figure 9 As shown, the first primary optical element 12 and the second primary optical element 22 are arranged in parallel and located on both sides of the optical axis of the lens 3. The lens focal point 5 is located at the first light source 11 or on the first primary optical element 12 or within a 10mm radius of both, or the lens focal point 5 is located at the second light source 21 or on the second primary optical element 22 or within a 10mm radius of both. The setting of the lens focal point 5 can be adjusted according to the actual application requirements.

[0053] Based on the same concept, a second aspect of the present invention provides a vehicle lamp including the optical system described above.

[0054] In one or more embodiments, when the optical system is applied to the high and low beam illumination of vehicle lights, it includes at least a control unit of a first optical unit 1 that is electrically connected to the vehicle control system. The first optical unit 1 is configured to realize dynamic steering of a first light pattern according to the vehicle's rotation movement, that is, the first optical unit 1 has dynamic steering (AFS) function.

[0055] Based on the same concept, a third aspect of the present invention provides a vehicle including the headlights described above.

[0056] In summary, this utility model provides an optical system, a vehicle lamp, and a vehicle. The optical system includes a first optical unit 1 and a second optical unit 2. The light generated by the first optical unit 1 and the second optical unit 2 forms a first light pattern and a second light pattern respectively after passing through a lens 3. A reflection unit 4 is also provided, which is disposed on one side of the second optical unit 2. The reflection unit 4 is used to reflect part of the light generated by the second optical unit 2 and then exit through the lens 3 to form a third light pattern that increases the longitudinal width of the second light pattern. Thus, when applied to high and low beam optical systems, the longitudinal width of the high beam pattern is increased without changing the structure of the first primary optical element 12 and the second primary optical element 22. Moreover, the manufacturing difficulty is low, no additional light loss is added, and the illumination performance of the optical system is effectively improved.

[0057] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. An optical system, characterized in that, include: A first optical unit, the first optical unit comprising a first light source and a first primary optical element; The second optical unit includes a second light source and a second primary optical element, wherein the second primary optical element and the first primary optical element are arranged in parallel. A lens, wherein the lens is arranged on the light-emitting side of the first optical unit and the second optical unit; A reflection unit is arranged in the light-emitting optical path of the second primary optical element on the side away from the first primary optical element; The first optical unit is configured such that the first primary optical element collects the light emitted from the first light source and adjusts the propagation path of the light, and then causes the light to be emitted into the external space through the lens and projected to form a first light pattern; The second optical unit is configured such that the second primary optical element collects a portion of the light emitted from the second light source and adjusts the propagation path of the light, and then causes this portion of the light to be emitted into the external space through the lens and projected to form a second light pattern. At the same time, at least a portion of the light emitted through the second primary optical element is reflected by the reflection unit and emitted into the external space through the lens, thereby increasing the longitudinal broadening of the second light pattern.

2. The optical system as claimed in claim 1, characterized in that, The first light source includes a plurality of linearly arranged first sub-light sources, and the first primary optical element includes a plurality of linearly arranged first collimating optical element units, wherein each of the first collimating optical element units is provided with at least one first sub-light source. The second light source includes a plurality of linearly arranged second sub-light sources, and the second primary optical element includes a plurality of linearly arranged second collimating optical element units, wherein each second collimating optical element unit is provided with at least one corresponding second sub-light source.

3. The optical system as described in claim 2, characterized in that, Several first collimating optical element units and the first sub-light source are arranged sequentially in a straight line or curve along the same trend; Several second collimating optical element units and the second sub-light source are arranged sequentially in a straight line or curve along the same trend.

4. The optical system as described in claim 2, characterized in that, The first collimating optical element unit and / or the second collimating optical element unit are mirrors or small lenses.

5. The optical system as claimed in claim 1, characterized in that, The first primary optical element and the second primary optical element are arranged in parallel along the longitudinal or transverse direction.

6. The optical system as claimed in claim 1, characterized in that, The reflecting surface of the reflecting unit is either a plane or a curved surface.

7. The optical system as claimed in claim 1, characterized in that, The first primary optical element and the second primary optical element are fixedly connected as an integral structure.

8. The optical system as claimed in claim 7, characterized in that, It also includes a heat dissipation unit, which adopts an integrated structure, with the first light source and the second light source disposed on the heat dissipation unit.

9. The optical system as claimed in claim 1, characterized in that, The lens is a convex lens.

10. The optical system as claimed in claim 9, characterized in that, The first primary optical element and the second primary optical element are arranged in parallel and located on both sides of the optical axis of the lens. The focal point of the lens is located at the first light source or on the first primary optical element or within 10 mm of both. Alternatively, the focal point of the lens is located at the second light source or on the second primary optical element or within 10 mm of both.

11. A vehicle light, characterized in that, include: The optical system as described in any one of claims 1-10.

12. The vehicle light as described in claim 11, characterized in that, The control unit, including at least the first optical unit, is electrically connected to the vehicle control system. The first optical unit is configured to dynamically follow the steering of the first optical pattern according to the vehicle's rotation.

13. A vehicle, characterized in that, include: The vehicle lights as described in claim 11 or 12.

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