CN219623857U - Collimation unit, condenser and high beam module - Google Patents

Abstract

The utility model discloses a collimation unit, a condenser and a high beam module, and relates to the technical field of vehicle illumination. The collimation unit comprises a first light incident surface and a first light emergent surface which are oppositely arranged, and a light guide section between the first light incident surface and the first light emergent surface, wherein a wedge-shaped opening is formed in the lower side surface of the light guide section, and partial light incident through the first light incident surface is deflected when passing through the wedge-shaped opening, and is emitted from the upper part of the first light emergent surface after deflected. The collimating unit can enable part of high beam light to be deflected and then to be emitted from the upper part of the first light emitting surface of the collimating unit, and finally the light emitted from the part can be projected to an H-axis 0-degree line area on the light distribution screen, so that the light energy near the H-axis 0-degree line is improved, and the irradiation distance of the high beam module during illumination is further improved.

Description

Collimation unit, condenser and high beam module

Technical Field

The utility model relates to the technical field of vehicle illumination, in particular to a collimation unit, a condenser and a high beam module.

Background

At present, the application of the LED light source in the dipped headlight module is mature, and the dipped headlight module using the LED light source can realize diversification. At present, miniaturization, simple structure, low cost and high performance are still development trends of car lamp modules. The car lamp module with the characteristics has good market potential.

The light guide part of the existing condenser is made of transparent materials with uniform medium, high beam light enters the light guide part through the light inlet surface, is transmitted to the light outlet surface to be emitted out through the lens, and deflects when passing through the light outlet surface, the deflection tends to be multidirectional, so that the high beam light emitted from the light outlet surface is divergent, after being emitted out through the lens, less light is projected to the position near the 0-degree line of the H axis of the light distribution screen, and the light energy is low, so that the high beam irradiation distance is insufficient.

Disclosure of Invention

The utility model aims to provide a collimation unit, a condenser and a high beam module, wherein the collimation unit can enable part of high beam light to be deflected and then emitted from the upper part of a first light emitting surface of the collimation unit, and finally the light emitted from the part can be projected to an H-axis 0-degree line area on a light distribution screen, so that the light energy near the H-axis 0-degree line is improved, and the irradiation distance of the high beam module during illumination is further improved.

Embodiments of the present utility model are implemented as follows:

in one aspect of the embodiments of the present utility model, a collimation unit is provided, which includes a first light incident surface and a first light emergent surface which are disposed opposite to each other, and a light guide section between the first light incident surface and the first light emergent surface, wherein a wedge-shaped opening is formed on a lower side surface of the light guide section, and a part of light incident through the first light incident surface is deflected when passing through the wedge-shaped opening, and is emitted from an upper part of the first light emergent surface after being deflected.

Optionally, as an implementation manner, the light guide section has a second light emitting surface corresponding to the first light emitting surface and a second light emitting surface corresponding to the first light emitting surface, where the second light emitting surface and the second light emitting surface form a preset included angle to form the wedge-shaped opening, and a part of high beam light enters the wedge-shaped opening after being incident through the first light emitting surface and being refracted by the second light emitting surface and then enters the light guide section again after being refracted by the second light emitting surface, and is deflected and emitted by the first light emitting surface.

Optionally, as an implementation manner, a condensing lens is disposed on the first light incident surface, and the far-beam light is incident through the first light incident surface and enters the light guide section after being condensed by the condensing lens.

Optionally, as an implementation manner, the second light emitting surface and the second light entering surface are both plane surfaces.

Optionally, as an implementation manner, the second light incident surface is an arc surface and protrudes outwards towards one side away from the first light incident surface.

Optionally, as an implementation manner, the first light emitting surface is an arc surface and protrudes outwards towards one side away from the first light entering surface.

In another aspect of the embodiments of the present utility model, there is provided a condenser, including a plurality of collimating units as set forth in any one of the above, and a plurality of the collimating units are sequentially arranged.

Alternatively, as an implementation, the wedge-shaped openings of the plurality of collimating units are in communication.

Optionally, as an implementation manner, the first light-emitting surfaces of the collimating units are connected to form the light-emitting surface of the condenser.

The embodiment of the utility model also provides a high beam module, which comprises a plurality of light sources, an optical lens and the condenser, wherein the condenser comprises a plurality of collimation units, each light source corresponds to one collimation unit, the optical lens is positioned on the light emitting side of the condenser, and the focal line of the optical lens is positioned at the focus of the condenser.

The beneficial effects of the embodiment of the utility model include:

the collimation unit, the condenser and the high beam module provided by the utility model comprise a first light incident surface, a first light emergent surface, a light guide section between the first light incident surface and the first light emergent surface which are oppositely arranged, wherein a wedge-shaped opening is formed in the lower side surface of the light guide section, part of light rays incident through the first light incident surface are deflected through the wedge-shaped opening, deflected and then are emitted from the upper part of the first light emergent surface, finally, the deflected light rays are projected to an H-axis 0-degree line area on a light distribution screen, the light energy near the H-axis 0-degree line is improved, and then the irradiation distance of the high beam module in illumination is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a condenser according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a collimation unit in a condenser according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a collimating unit in a condenser according to an embodiment of the present utility model;

fig. 4 is a schematic light shape diagram of a collimation unit in a condenser according to an embodiment of the present utility model.

Icon: a 100-condenser; 110-a collimation unit; 111-a first light incident surface; 112-a first light-emitting surface; 113-a light guide section; 1131-a second light-emitting surface; 1132-a second light incident surface; 114-wedge shaped opening.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 2, 3 and 4, the present embodiment provides a collimating unit 110, which includes a first light incident surface 111 and a first light emergent surface 112, and a light guide section 113 disposed between the first light incident surface 111 and the first light emergent surface 112, wherein a wedge-shaped opening 114 is disposed on a lower side surface of the light guide section 113, and a portion of light incident through the first light incident surface 111 is deflected through the wedge-shaped opening 114, and is emitted from an upper portion of the first light emergent surface 112 after being deflected, and finally is projected to an H-axis 0 ° line region on a light distribution screen.

Specifically, the light emitted by the light source enters the light guide section 113 through the first light incident surface 111, and exits from the first light emergent surface 112 after passing through the light guide section 113, wherein a part of the light is deflected when passing through the wedge-shaped opening 114 arranged on the lower side surface of the light guide section 113, exits from the upper part of the first light emergent surface 112 after being deflected, and the rest of the light which does not pass through the wedge-shaped opening 114 directly exits from the first light emergent surface 112 after passing through the light guide section 113, at this time, the light which exits from the first light emergent surface 112 after passing through the wedge-shaped opening 114 is deflected upwards, so that the light which is finally projected to the vicinity of the H-axis 0 degree line on the light distribution screen is increased.

The collimating unit 110 may be made of a transparent PC material or a transparent PMMA material.

At this time, when the collimating unit 110 is applied to a vehicle lamp, an optical lens is disposed on the light-emitting side of the collimating unit 110, and at this time, the light emitted from the first light-emitting surface 112 of the collimating unit 110 is turned over by the optical lens, so that the light partially emitted from the first light-emitting surface 112 can be projected near the 0 ° H-axis line on the light distribution screen after being turned over by the optical lens, where the light increases, the high beam type welting property is good, and the high beam is irradiated farther when the high beam module is illuminated.

It should be noted that, the wedge-shaped opening 114 is disposed at a side close to the first light-emitting surface 112, that is, a distance between the wedge-shaped opening 114 and the first light-emitting surface 112 is greater than a distance between the wedge-shaped opening 114 and the first light-entering surface 111, so that light deflected by the wedge-shaped opening 114 can be prevented from exiting from the side surface of the light guide section 113, so that light incident from the first light-entering surface 111 exits from the first light-emitting surface 112 more and part of light can be projected to the vicinity of a required 0 ° H-axis line, so as to improve the brightness of the high beam center when the high beam module is illuminated. The wedge-shaped opening 114 is a V-shaped opening, and gradually decreases from a side surface of the light guide section 113 where the wedge-shaped opening 114 is formed to the other side surface of the light guide section 113 opposite to the side surface.

The collimation unit 110 provided by the utility model comprises a first light incident surface 111, a first light emergent surface 112, a light guide section 113 arranged between the first light incident surface 111 and the first light emergent surface 112, a wedge-shaped opening 114 arranged on one side surface of the light guide section 113, wherein partial light rays entering through the first light incident surface 111 are deflected through the wedge-shaped opening 114, are emitted from the first light emergent surface 112 after being deflected, and finally are projected to an H-axis 0-degree line area on a light distribution screen, so that the irradiation distance of high beam light when a high beam module is illuminated is increased. The term "good welt" means that the light emitted from the optical lens is more directed toward the 0 ° line of the H axis, and the energy is higher.

In a possible embodiment of the present utility model, as shown in fig. 2, 3 and 4, the light guide section 113 has a second light emitting surface 1131 corresponding to the first light emitting surface 111 and a second light emitting surface 1132 corresponding to the first light emitting surface 112, where the second light emitting surface 1131 and the second light emitting surface 1132 form a predetermined included angle to form a wedge-shaped opening 114, and a part of high beam enters the wedge-shaped opening 114 after being refracted by the second light emitting surface 1131 after entering through the first light emitting surface 111, enters the light guide section 113 again after being refracted by the second light emitting surface 1132, and exits after being deflected by the first light emitting surface 112.

Specifically, the second light-emitting surface 1131 is disposed opposite to the first light-entering surface 111, the second light-emitting surface 1132 is disposed opposite to the first light-emitting surface 112, the second light-emitting surface 1131 is disposed on one side of the collimating unit 110 close to the first light-emitting surface 111, the second light-entering surface 1132 is disposed on one side of the collimating unit 110 close to the first light-emitting surface 112, so that a part of high beam enters the wedge-shaped opening 114 after being refracted and emitted from the second light-emitting surface 1131 through the first light-emitting surface 111, and then enters the light-guiding section 113 after being refracted and reenters the light-guiding section 113 through the second light-entering surface 1132, and exits from the first light-emitting surface 112 after being deflected by the second light-emitting surface 1132, the second light-emitting surface 1131 and the second light-emitting surface 1132 are disposed at a preset included angle to form the wedge-shaped opening 114, so that a part of high beam enters the wedge-shaped opening 114 from the light-guiding section 113 after being refracted and enters the air medium of the wedge-shaped opening 114, and enters the light-guiding section 113 from the second light-emitting surface 1132, enters the wedge-shaped opening 113 from the air medium, and exits from the wedge-shaped opening 113 from the air medium after being refracted and enters the wedge-shaped opening 114, and exits from the light-shaped opening 113, and exits from the first light-emitting surface 112 after passing through the first light-emitting surface 112.

The wedge-shaped opening 114 is a V-shaped opening, that is, the second light emitting surface 1131 and the second light entering surface 1132 are disposed at an acute angle, and the distance between the second light emitting surface 1131 and the second light entering surface 1132 gradually decreases from the lower side surface of the light guiding section 113 to the upper side surface of the light guiding section 113.

The larger the included angle between the second light-emitting surface 1131 and the second light-entering surface 1132, the larger the angle of upward deflection of the light beam, so as to further increase the light beam partially emitted from the first light-emitting surface 112, so as to increase the irradiation distance of the high beam module during illumination.

In one possible embodiment of the present utility model, as shown in fig. 2, a condensing lens is disposed on the first light incident surface 111, and the far-beam light is converged by the condensing lens, then enters the light guide section 113 through the first light incident surface 111.

Specifically, a condensing lens is disposed on the first light incident surface 111, and divergent light emitted by the light source is converged into the light guide section 113 after passing through the condensing lens, which may be, for example, a TIR (Total Internal Reflection) lens, or a TIR lens, that is, a total internal reflection lens, where the TIR lens controls light emitted by the light source, so that the light entering the light guide section 113 can be uniformly transmitted to the first light emitting surface 112.

In one possible embodiment of the present utility model, as shown in fig. 2 and 3, the second light emitting surface 1131 and the second light entering surface 1132 are both planar.

The second light emitting surface 1131 and the second light entering surface 1132 are both set to be planes, and by adjusting the included angle between the second light emitting surface 1131 and the second light entering surface 1132, partial light rays refracted after passing through the wedge-shaped opening 114 can be refracted as required, so that the light rays passing through the wedge-shaped opening 114 and the light rays not passing through the wedge-shaped opening 114 can both intersect after exiting from the first light emitting surface 112, an optical lens is arranged at the intersection, the focal line of the optical lens is arranged at the intersection, so that the maximum light rays passing through the vicinity of the focal line of the lens can be ensured, and the brightness of a high beam light type formed by projecting the light rays onto a light distribution screen is improved.

In one possible embodiment of the present utility model, as shown in fig. 2 and 3, the second light incident surface 1132 is a cambered surface and protrudes toward a side facing away from the first light incident surface 111.

Specifically, the second light incident surface 1132 is set to be an arc surface, so that an included angle between the second light incident surface 1132 and the second light emergent surface 1131 can be ensured, light rays passing through the wedge-shaped opening 114 can be refracted and not emitted from the side surface of the light guide section 113, but emitted from the first light emergent surface 112, and the light efficiency of a high beam light type is improved while the generation of stray light is reduced.

In one possible embodiment of the present utility model, as shown in fig. 2 and 3, the first light emitting surface 112 is a cambered surface and protrudes toward a side facing away from the first light entering surface 111.

Specifically, the first light emitting surface 112 is set to be an arc surface, so that the light is converged by adjusting the light deflection degree of the first light emitting surface 112.

For example, the first light emitting surface 112 may be an ellipsoid or an ellipsoid-like surface, and the light deflection degree may be controlled.

In one possible embodiment of the present utility model, as shown in fig. 1, there is provided a condenser 100 including a plurality of collimating units 110, and the plurality of collimating units 110 are sequentially arranged.

Specifically, the plurality of collimating units 110 are sequentially arranged, the light-emitting sides of the plurality of collimating units 110 are disposed on the same side, the light-entering sides of the plurality of collimating units 110 are disposed on the same side, and at this time, the light emitted from the light-emitting side of the condenser 100 is converged light.

Further, the plurality of collimating units 110 are integrally formed, so as to ensure that the light beam projected from the first light-emitting surface 112 of the plurality of collimating units 110 forms a better light pattern.

In one possible embodiment of the present utility model, as shown in FIG. 1, the wedge-shaped openings 114 of the plurality of collimating units 110 are in communication.

Specifically, the wedge-shaped openings 114 of the plurality of collimating units 110 are communicated, that is, the second light-emitting surfaces 1131 of the plurality of collimating units 110 are coplanar, and the second light-entering surfaces 1132 of the plurality of collimating units 110 are coplanar, so that the overall stability of the condenser 100 can be improved, the condenser 100 can be conveniently processed, and meanwhile, the control of the deflection angle of the light is more convenient.

When the condenser is applied to a high beam module of a car lamp, each light source corresponds to one collimation unit 110, an optical lens is arranged on the light emitting side of the condenser, light rays are refracted through a wedge-shaped opening 114 and then partially emitted out of the light emitting surface of the condenser, and more light rays can be projected to the position near an H-axis 0-degree line on a light distribution screen after being overturned by the optical lens, so that the high beam light type welting property is good, and the irradiation distance of high beam is improved. In addition, the focus of the condenser is arranged at the focal line of the optical lens, and the light rays emitted by the light source are converged at the focus of the condenser after exiting from the light emergent surface of the condenser.

For example, the second light-emitting surface 1131 and the second light-entering surface 1132 of the plurality of collimating units 110 are both set to be planar, where the second light-emitting surface 1131 of the plurality of collimating units 110 is coplanar, the second light-entering surface 1132 of the plurality of collimating units 110 is coplanar, and by adjusting an included angle between the second light-emitting surface 1131 and the second light-entering surface 1132, it is ensured that a part of light refracted after passing through the wedge-shaped opening 114 can be refracted as required, more light exits from an upper part of the light-emitting surface of the condenser, and after being turned over by the optical lens, more light can be projected near the 0 ° H-axis line on the light distribution screen, so that the high beam light type has good welting property and irradiates further. In addition, the light rays passing through the wedge-shaped opening 114 and the light rays not passing through the wedge-shaped opening 114 can be converged at the focus of the condenser after exiting from the light-emitting surface of the condenser, and the focal line of the optical lens is also arranged at the focus, so that the brightness of the high beam type is ensured.

For example, the second light-emitting surfaces 1131 of the plurality of collimating units 110 are all set to be planar, the second light-entering surfaces 1132 of the plurality of collimating units 110 are all set to be cambered surfaces, wherein the second light-emitting surfaces 1131 of the plurality of collimating units 110 are coplanar, and the second light-entering surfaces 1132 of the plurality of collimating units 110 are coplanar, so as to ensure an included angle between the second light-entering surfaces 1132 and the second light-emitting surfaces 1131, and also ensure that light rays passing through the opening side of the wedge-shaped opening 114 are refracted and then cannot exit from the side of the light guide section 113, but exit from the light-emitting surface of the condenser, thereby reducing stray light and improving the light efficiency of a high beam type.

Further, the plurality of collimating units 110 are integrally formed, so as to ensure that the second light incident surfaces 1132 of the plurality of collimating units 110 are coplanar, the second light emergent surfaces 1131 of the plurality of collimating units 110 are coplanar, and the first light emergent surfaces 112 of the plurality of collimating units 110 are coplanar, so that the overall stability of the condenser 100 can be improved, the condenser 100 can be conveniently processed, and the control of the deflection angle of the light is more convenient.

It should be noted that, a gap is formed between the first light incident surfaces 111 of the two adjacent collimating units 110, the first light emergent surfaces 112 of the two adjacent collimating units 110 are connected, and the gap between the two adjacent collimating units 110 is gradually reduced along the light transmission direction, so that a light source is disposed on the light incident side of the collimating unit 110. At the same time, the interference of the light paths of the two adjacent collimating units 110 can be avoided.

In one possible embodiment of the present utility model, as shown in fig. 1, the first light-emitting surfaces 112 of the plurality of collimating units 110 are connected to form the light-emitting surface of the condenser 100.

Specifically, the plurality of collimating units 110 of the condenser 100 are integrally formed, and the first light-emitting surfaces 112 of the plurality of collimating units 110 are connected to form the light-emitting surface of the condenser 100, so as to ensure good light-type connectivity of light emitted from the light-emitting surface of the condenser 100.

Further, a condensing lens is disposed on the first light incident surface 111 of each collimating unit 110, so that divergent light emitted by the light source is converged by the condensing lens and then enters the corresponding light guide section 113, so as to ensure light efficiency.

For example, the first light-emitting surface 112 is set to be an arc surface, so as to adjust the light deflection degree through the first light-emitting surface 112, and make the light converge. The first light-emitting surfaces 112 of the plurality of collimating units 110 are connected to form a light-emitting surface of the condenser 100, and the light-emitting surface of the condenser 100 is concave toward the first light-entering surface 111 of the collimating unit 110 along the arrangement direction of the plurality of collimating units 110, so that the light rays emitted from the light-emitting surface of the condenser 100 are converged to ensure the brightness of the light pattern formed by projection.

The embodiment of the utility model also discloses a high beam module, which comprises a plurality of light sources, optical lenses and the condenser 100 in the previous embodiment. The condenser 100 includes a plurality of collimation units, each light source corresponds to one collimation unit, the optical lens is disposed on the light emitting side of the condenser 100, and the focal line of the optical lens is located at the focal point of the condenser 100. The high beam module includes the same structure and advantages as the condenser 100 of the previous embodiment. The structure and advantages of the condenser 100 are described in detail in the foregoing embodiments, and are not described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The collimation unit is characterized by comprising a first light incident surface, a first light emergent surface, a light guide section and a wedge-shaped opening, wherein the first light incident surface and the first light emergent surface are oppositely arranged, the light guide section is arranged between the first light incident surface and the first light emergent surface, the lower side surface of the light guide section is provided with the wedge-shaped opening, partial light rays incident through the first light incident surface are deflected when passing through the wedge-shaped opening, and the deflected light rays are emitted from the upper part of the first light emergent surface.

2. The collimating unit of claim 1, wherein the light guide section has a second light exit surface corresponding to the first light entrance surface and a second light entrance surface corresponding to the first light exit surface, the second light exit surface and the second light entrance surface form a preset included angle to form the wedge-shaped opening, and a part of high beam light enters the wedge-shaped opening after being incident through the first light entrance surface and being refracted by the second light entrance surface and then enters the light guide section again and is deflected and emitted by the first light exit surface.

3. The collimating unit of claim 2, wherein a condensing lens is disposed on the first light incident surface, and the high beam is incident through the first light incident surface and enters the light guide section after being condensed by the condensing lens.

4. The collimating unit of claim 2, wherein the second light-exiting surface and the second light-entering surface are both planar.

5. The collimating unit of claim 2, wherein the second light-entering surface is an arc surface and is convex toward a side facing away from the first light-entering surface.

6. The collimating unit of claim 2, wherein the first light-exiting surface is an arc surface and is convex toward a side facing away from the first light-entering surface.

7. A condenser comprising a plurality of collimating units according to any one of claims 1-6, the plurality of collimating units being arranged in sequence.

8. The concentrator of claim 7, wherein the wedge-shaped openings of the plurality of collimating elements are in communication.

9. The concentrator of claim 7, wherein the first light-emitting surfaces of the plurality of collimating elements are connected to form the light-emitting surface of the concentrator.

10. A high beam module comprising a plurality of light sources and an optical lens, and the condenser of any one of claims 7-9, wherein the condenser comprises a plurality of collimating units, one for each light source, the optical lens is located on the light-emitting side of the condenser, and the focal line of the optical lens is located at the focal point of the condenser.