CN221076239U - Lens, optical module, photoelectric module and car lamp - Google Patents
Lens, optical module, photoelectric module and car lamp Download PDFInfo
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- CN221076239U CN221076239U CN202323033356.9U CN202323033356U CN221076239U CN 221076239 U CN221076239 U CN 221076239U CN 202323033356 U CN202323033356 U CN 202323033356U CN 221076239 U CN221076239 U CN 221076239U
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- 239000011324 bead Substances 0.000 claims description 9
- 230000005693 optoelectronics Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model discloses a lens, an optical module, a photoelectric module and a car lamp, wherein the lens is provided with a light incident surface and a light emergent surface (110), the light incident surface comprises a first light incident surface (121) and a second light incident surface (122) which are separated from each other, and the first light incident surface (121), the second light incident surface (122) and the light emergent surface (110) are curved surfaces which are outwards protruded; wherein the first focal point (1211) of the first light incident surface (121) and the second focal point (1221) of the second light incident surface (122) do not overlap; wherein the curvature of the first light incident surface (121) is smaller than or equal to the curvature of the second light incident surface (122).
Description
Technical Field
The utility model relates to the technical field of automobile illumination, in particular to a lens, an optical module, a photoelectric module and a car lamp.
Background
The main requirements of the current market for the car lamp module are compact in size and high in efficiency, and the modeling requirements of various car lamps are adapted on the premise of ensuring good optical performance. The lens of the car light module has both modeling function and optical function, so the design method of the lens determines the size and optical effect of the lens.
The main current car lamp module lens in the market is a convex lens, and the front and rear surfaces of the lens are formed by two complete curved surfaces. The conventional lens has a single focal point, is large in size and thick in thickness, and all light rays emitted from the light sources in the module need to be concentrated near the focal point of the lens. When the light source is applied to the far and near light integrated module, all the light rays emitted by the light source pass through the similar area on the lens. The design features enable light rays and structures between the light source and the light source, between the high beam and the low beam to be easy to interfere, and the path of the emergent light rays of the single light source cannot be adjusted through local adjustment of the lens, so that the design difficulty is increased. Due to the characteristics, the high beam and low beam light patterns of the traditional high beam and low beam integrated module cannot be overlapped, a dark area is easy to exist in the high beam and low beam connection, and the score is low in the Chinese new vehicle evaluation rule (C-NCAP), so that the perception and the driving safety of a driver can be influenced.
And because the far and near light needs to be imaged by using the same focus, the positions of the far and near light sources are close, the structural design and the heat-resistant design are more difficult, and the heat attenuation of the light sources is easy to generate.
Meanwhile, when the traditional module lens is used, in order to ensure the widening of the light type of the car light, the light sources are generally arranged in the horizontal direction, so that the overall transverse dimension of the module is longer.
In summary, the conventional optical lens module has the disadvantages of large size, inability to design independent light sources or functions such as low beam and high beam on the lens, limited optical performance, difficult heat dissipation design, and easy light attenuation.
Disclosure of utility model
The technical aim can be achieved by adopting the following technical characteristics, and other technical effects are brought about.
An object of the present utility model is to provide a lens having a light entrance surface and a light exit surface,
The light incident surface comprises a first light incident surface and a second light incident surface which are separated from each other, and the first light incident surface, the second light incident surface and the light emergent surface are all curved surfaces protruding outwards; the first focal point of the first light incident surface and the second focal point of the second light incident surface are not overlapped; the curvature of the first light incident surface is smaller than or equal to that of the second light incident surface.
In the technical scheme, the lens can be used for independently adjusting different functions and different light sources, and can be used for designing a complete high beam light type when designing a high beam and low beam integrated module, so that the high beam and low beam functions are not interfered with each other, and the problem of combining high beam and low beam with a dark area is solved; meanwhile, the lenses are partitioned up and down, so that corresponding rear optical systems (such as a high beam reflector and a low beam reflector) can be longitudinally arranged, and the transverse size of the module is obviously reduced; and moreover, a far-near light system in the far-near light integrated module can be independently designed, so that the heat design is facilitated, and the heat attenuation of a light source is reduced.
In addition, the lens according to the present utility model may further have the following technical features:
In one example of the present utility model, the first light incident surface and the second light incident surface are symmetrically disposed with respect to a center plane of the light emergent surface.
In one example of the present utility model, the curvature of each of the first light incident surface and the second light incident surface is larger than the curvature of the light emergent surface.
Another object of the present utility model is to provide an optical module,
Comprising a lens as described above;
the low-beam light source and the low-beam reflector are arranged on one side of the light incident surface and are close to the first light incident surface;
the high beam light source and the high beam reflector are arranged on one side of the light incident surface and are close to the second light incident surface;
the distance between the high beam reflector and the light incident surface is longer than that between the low beam reflector and the light incident surface;
The distance between the high beam light source and the first focus is equal to the focal length of the first light incident surface; the distance between the low beam light source and the second focus is equal to the focal length of the second light incident surface.
In one example of the present utility model, the high beam reflector and the low beam reflector are open to the same direction.
In one example of the present utility model,
The high beam light source and the first focus are positioned on the same horizontal plane;
The low beam light source and the second focus are on the same horizontal plane.
Still another object of the present utility model is to provide an optoelectronic module, including a light source board and the optical module described above, where the light source board is provided with a plurality of LED light beads, and lenses on the optical module are covered on the LED light beads, and the lenses are in one-to-one correspondence with the LED light beads.
A further object of the present utility model is to provide a vehicle lamp comprising an optoelectronic module as described above.
Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description will briefly explain the drawings of the embodiments of the present utility model. Wherein the showings are for the purpose of illustrating some embodiments of the utility model only and not for the purpose of limiting the same.
FIG. 1 is a schematic view of a lens structure according to an embodiment of the utility model
Fig. 2 is a schematic structural diagram of an optical module according to an embodiment of the utility model.
List of reference numerals:
An optical module 200;
A lens 100;
a light-emitting surface 110;
A light incident surface 120;
A first light incident surface 121;
a first focal point 1211;
A second light incident surface 122;
A second focus 1221;
A high beam light source 130;
A high beam reflector 140;
A low beam light source 150;
low beam reflector 160.
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1, a lens 100 according to a first aspect of the present utility model, the lens 100 has a light incident surface and a light emergent surface 110,
The light incident surface includes a first light incident surface 121 and a second light incident surface 122 separated from each other, and the first light incident surface 121, the second light incident surface 122 and the light emergent surface 110 are curved surfaces protruding outwards; wherein, the first focal point 1211 of the first light incident surface 121 and the second focal point 1221 of the second light incident surface 122 do not overlap;
Wherein, the curvature of the first light incident surface 121 is smaller than or equal to the curvature of the second light incident surface 122; that is, the first light incident surface 121 may be the light incident surface of the high beam lens 100, and the second light incident surface 122 may be the light incident surface of the low beam lens 100; preferably, the curvature of the first light incident surface 121 is smaller than that of the second light incident surface 122, so that the focal length of the first light incident surface 121 is larger than that of the second light incident surface 122.
That is, the light-emitting surface 110 of the lens 100 is a complete curved surface to ensure a complete and beautiful appearance, the light-entering surface is divided into a first light-entering surface 121 and a second light-entering surface 122 which are longitudinally arranged, and the first light-entering surface 121 and the second light-entering surface 122 form focuses at different positions behind the lens 100; after the lens 100 is partitioned longitudinally, the lens 100 may be selectively re-partitioned or un-partitioned laterally, and then the secondary optical system is functionally partitioned at the rear of the module and corresponds to the focal point formed by different curved surfaces.
The lens 100 can be used for independently adjusting different functions and different light sources, and can be used for designing a complete high beam light type when designing a high beam and low beam integrated module, so that the high beam and low beam functions are not interfered with each other, and the problem of combining high beam and low beam with a dark area is solved; at the same time, the lens 100 is partitioned up and down, so that the corresponding rear optical systems (such as the high beam reflector 140 and the low beam reflector 160) can be longitudinally arranged, and the transverse size of the module is remarkably reduced; and moreover, a far-near light system in the far-near light integrated module can be independently designed, so that the heat design is facilitated, and the heat attenuation of a light source is reduced.
In one example of the present utility model, the first light incident surface 121 and the second light incident surface 122 are symmetrically disposed with respect to the center surface of the light emitting surface 110; this facilitates spatial arrangement.
In one example of the present utility model, the curvatures of the first light incident surface 121 and the second light incident surface 122 are both larger than the curvature of the light emergent surface 110.
According to an optical module 200 of the second aspect of the utility model,
Including a lens 100 as described above;
a low beam light source 150 and a low beam reflector 160 disposed on one side of the light incident surface and close to the first light incident surface 121;
The high beam light source 130 and the high beam reflector 140 are arranged on one side of the light incident surface and are close to the second light incident surface 122;
Wherein, the distance from the high beam reflector 140 to the light incident surface is longer than the distance from the low beam reflector 160 to the light incident surface;
Wherein, the distance between the high beam light source 130 and the first focal point 1211 is equal to the focal length of the first light incident surface 121; the distance between the low beam light source 150 and the second focus 1221 is equal to the focal length of the second light incident surface 122.
In the optical module 200, when the optical design adjustment is required for a single function or light source, only the second light incident surface 122 and the second light incident surface 122 of the lens 100 corresponding to the function or light source need to be locally adjusted. The dispersion of the car light module can be eliminated by adjusting the curved surface of the partition or the diffusion effect of the light in the area can be adjusted by adding micro patterns on the partition.
With this kind of optical module 200, the far-reaching beam can have independent complete light type, is not influenced by the low beam to the problem that there is dark space in the combination of the far-reaching beam and the low beam can not exist.
Because the far and near light systems use independent focuses, the far and near light systems cannot be mutually influenced in the process of thermal design, the overall heat dissipation cost is low, and light attenuation is not easy to generate.
In one example of the present utility model, the high beam reflector 140 and the low beam reflector 160 have the same opening orientation;
That is, the high beam reflector 140 and the low beam reflector 160 are disposed corresponding to the first light incident surface 121 and the second light incident surface 122 disposed longitudinally thereof, that is, in the longitudinal direction, so that the lateral dimension of the optical module 200 can be significantly reduced.
In one example of the present utility model,
The high beam light source 130 is on the same horizontal plane as the first focal point 1211;
the low beam light source 150 is in the same horizontal plane as the second focus 1221.
According to the third aspect of the utility model, the optoelectronic module comprises a light source board and the optical module 200, wherein a plurality of LED lamp beads are arranged on the light source board, the lenses 100 on the optical module 200 are covered on the LED lamp beads, and the lenses 100 are in one-to-one correspondence with the LED lamp beads.
The photoelectric module can be used for independently adjusting different functions and different light sources, and can be used for designing a complete high beam light type when designing an integrated high beam and low beam module, so that the high beam and low beam functions are not interfered with each other, and the problem of combining high beam and low beam with a dark area is solved; meanwhile, the lens 100 is partitioned up and down, so that the high beam reflector 140 and the low beam reflector 160 can be longitudinally arranged, and the transverse size of the photoelectric module is obviously reduced; furthermore, the far and near light system in the photoelectric module can be independently designed, which is favorable for heat design and reduces heat attenuation of the light source.
A vehicle lamp according to a fourth aspect of the utility model comprises an optoelectronic module as described above.
The car lamp can be independently adjusted for different functions and different light sources, and a complete high beam light type can be designed when the car lamp is designed, so that the high beam function and the low beam function are not interfered and affected mutually, and the problem of combining the high beam with the low beam is solved; meanwhile, the lens 100 is partitioned up and down, so that the rear optical system can be longitudinally arranged, and the transverse size of the module is obviously reduced; and moreover, a far-near light system in the car lamp can be independently designed, so that the heat design is facilitated, and the heat attenuation of a light source is reduced.
While exemplary implementations of the lens 100, the optical module 200, the optoelectronic module and the lamp according to the present utility model have been described in detail hereinabove with reference to preferred embodiments, it will be understood by those skilled in the art that various modifications and adaptations can be made to the above-described specific embodiments without departing from the scope of the utility model, which is defined in the appended claims, and various combinations of the technical features and structures of the present utility model can be made without departing from the scope of the utility model.
Claims (8)
1. A lens having a light entrance surface and a light exit surface (110), characterized in that,
The light incident surface comprises a first light incident surface (121) and a second light incident surface (122) which are separated from each other, and the first light incident surface (121), the second light incident surface (122) and the light emergent surface (110) are curved surfaces which are outwards protruded; wherein the first focal point (1211) of the first light incident surface (121) and the second focal point (1221) of the second light incident surface (122) do not overlap;
wherein the curvature of the first light incident surface (121) is smaller than or equal to the curvature of the second light incident surface (122).
2. The lens of claim 1 wherein the lens is,
The first light incident surface (121) and the second light incident surface (122) are symmetrically arranged on the center surface of the light emergent surface (110).
3. The lens of claim 1 wherein the lens is,
The curvatures of the first light incident surface (121) and the second light incident surface (122) are larger than those of the light emergent surface (110).
4. An optical module, which is characterized in that,
Comprising a lens (100) according to any one of claims 1 to 3;
A low beam light source (150) and a low beam reflector (160) which are arranged on one side of the light incident surface and are close to the first light incident surface (121);
a high beam light source (130) and a high beam reflector (140) which are arranged on one side of the light incident surface and are close to the second light incident surface (122);
Wherein the distance from the high beam reflector (140) to the light incident surface is longer than the distance from the low beam reflector (160) to the light incident surface;
Wherein a distance between the high beam light source (130) and the first focal point (1211) is equal to a focal length of the first light incident surface; the distance between the low beam light source and the second focus (1221) is equal to the focal length of the second light incident surface (122).
5. The optical module of claim 4, wherein the optical module comprises,
The high beam reflector (140) and the low beam reflector (160) are open towards the same direction.
6. The optical module of claim 4, wherein the optical module comprises,
-The high beam light source (130) is on the same horizontal plane as the first focal point (1211);
the low beam light source (150) is in the same horizontal plane as the second focus (1221).
7. An optoelectronic module, characterized by comprising a light source board and an optical module (200) according to any one of claims 4 to 6, wherein a plurality of LED lamp beads are arranged on the light source board, lenses (100) on the optical module (200) are covered on the LED lamp beads, and the lenses (100) are in one-to-one correspondence with the LED lamp beads.
8. A vehicle lamp comprising the photovoltaic module of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323033356.9U CN221076239U (en) | 2023-11-10 | 2023-11-10 | Lens, optical module, photoelectric module and car lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323033356.9U CN221076239U (en) | 2023-11-10 | 2023-11-10 | Lens, optical module, photoelectric module and car lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221076239U true CN221076239U (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323033356.9U Active CN221076239U (en) | 2023-11-10 | 2023-11-10 | Lens, optical module, photoelectric module and car lamp |
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| Country | Link |
|---|---|
| CN (1) | CN221076239U (en) |
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- 2023-11-10 CN CN202323033356.9U patent/CN221076239U/en active Active
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