CN219623867U - Optical system and car lamp - Google Patents

Abstract

An optical system and a car lamp relate to the field of car signal lamps, and comprise a light source and a thick-wall member, wherein the light source is arranged corresponding to a light inlet part of the thick-wall member, and an air lens is arranged in the thick-wall member; the light emitted by the light source can enter the thick-wall member from the light inlet part, and the air lens refracts and then emits from the light-emitting surface of the thick-wall member. The air lens arranged in the thick-wall part can refract light, so that the problem of uneven light emission of the signal lamp in the prior art can be solved, and the signal lamp has a better and more uniform lighting effect.

Description

Optical system and car lamp

Technical Field

The utility model relates to the field of automobile signal lamps, in particular to an optical system and an automobile lamp.

Background

Along with the improvement of living standard, the demands of people are more and more diversified, and in order to better meet different demands, automobile manufacturers are also increased with a plurality of configurations during automobile production. One of them is a daytime running light, which is more specific. The daytime running light has the main function of providing a signal lamp with identification for the automobile, thereby ensuring running safety. During driving, daytime running lamps are started, so that pedestrians and other drivers can better recognize the vehicle, and accidents are effectively prevented. The car lamp manufacturer not only needs to satisfy the demands in function, but also can change the shape of the right-angle thick wall in the car lamp in order to improve the aesthetic degree of the car.

The current design requirement of the daytime running lamp in the lighting state is uniform lighting without flaws, and the requirement of regulations is also considered, so that the requirement on an optical system is very high, and the requirements on uniform lighting and the lighting effect are high. However, in the prior art, the light emitting surface still has the problems of uneven light emission and unsatisfactory lighting effect.

Disclosure of Invention

The utility model aims to provide an optical system and a car lamp, which have better and more uniform lighting effect.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides an optical system, including a light source and a thick-wall member, the light source being disposed corresponding to a light-entering portion of the thick-wall member, an air lens being disposed inside the thick-wall member;

the light emitted by the light source can enter the thick-wall member from the light inlet part, and is refracted by the air lens and then emitted from the light-emitting surface of the thick-wall member.

In an alternative embodiment, the air lens has a first surface and a second surface through which the light passes in sequence, and the first surface and the second surface are respectively provided with a first pattern and a second pattern for modulating the light.

In an alternative embodiment, the interior of the thick-walled member is further provided with a reflective surface.

In an alternative embodiment, the thick-walled member is L-shaped in cross section, and the reflective surface is disposed at a corner of the thick-walled member.

In an alternative embodiment, the reflective surface is provided with a third pattern.

In an alternative embodiment, the light emitting surface is an inclined surface, and a light emitting surface pattern is arranged on the light emitting surface.

In an alternative embodiment, the air lens is parallel to the direction in which the reflecting surface is disposed.

In an alternative embodiment, the thick-walled member sidewall is provided with a fourth pattern.

In an alternative embodiment, the optical system further includes a lamp cover and a lamp mirror, where the lamp cover and the lamp mirror are integrally formed with the light incident portion of the thick-wall member, and are configured to converge light emitted by the light source.

In a second aspect, the present embodiment provides a vehicle lamp including any one of the optical systems described above.

The embodiment of the utility model has the beneficial effects that:

the utility model provides an optical system, which comprises a light source and a thick-wall member, wherein the light source is arranged corresponding to a light inlet part of the thick-wall member, and an air lens is arranged in the thick-wall member; the light emitted by the light source can enter the thick-wall member from the light inlet part, and is refracted by the air lens and then emitted from the light-emitting surface of the thick-wall member. In the utility model, when light enters the air lens, refraction occurs from an optically dense medium to an optically sparse medium, and the light is diffused; when the light leaves the air lens, the light refracts from the light and sparse medium to the light and dense medium again, and the divergent light is converged, so that the light is more uniform when reaching the light emitting surface, and the loss of the light can be reduced through convergence, so that the lighting effect is optimized.

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 diagram of an optical system according to an embodiment of the present utility model;

FIG. 2 is a schematic front view of an optical system according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of an optical system according to an embodiment of the present utility model;

fig. 4 is a schematic top view of an optical system according to an embodiment of the utility model.

Icon:

100-light source; 200-air lens; 210-a first surface; 220-a second surface; 300-thick-walled members; 310-a reflective surface; 320-light entrance part; 330-a light emitting face; 331-luminous surface pattern; 340-fourth pattern; 400-lampshade; 500-lamp mirrors.

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.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. 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.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

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.

As shown in fig. 1 and 3, the optical system provided in this embodiment includes a light source 100 and a thick-wall member 300, wherein the light source 100 is disposed corresponding to a light inlet portion 320 of the thick-wall member 300, and an air lens 200 is disposed inside the thick-wall member 300; the light emitted from the light source 100 enters the thick-walled tool 300 from the light entrance 320, is refracted by the air lens 200, and is emitted from the light emitting surface 330 of the thick-walled tool 300.

Specifically, when light enters the air lens 200, the light is refracted from the optically dense medium to the optically sparse medium, and the light is diverged; when the light leaves the air lens 200, the light is refracted again from the light and hydrophobic medium to the light and dense medium, but the divergent light is converged at this time, so that the light is more uniform when reaching the light emitting surface 330, and the loss of the light can be reduced through convergence, so that the lighting effect is optimized.

In this embodiment, as shown in fig. 1 and 3, the air lens 200 has a first surface 210 and a second surface 220 through which light passes in sequence, and the first surface 210 and the second surface 220 are provided with a first pattern and a second pattern for modulating light, respectively. It can be appreciated that, in order to reduce dark areas on the light emitting surface 330 and lighting unevenness, the first pattern and the second pattern are respectively disposed on the first surface 210 and the second surface 220 of the air lens 200, so that light rays are more uniform.

Specifically, the first surface 210 and the second surface 220 are each provided with a zigzag pattern. It is to be understood that the present embodiment is not limited to the specific form of the pattern, as long as the desired effect is achieved.

In this embodiment, the thick-wall member is further provided with a reflective surface inside to change the transmission direction of the light.

For example, the thick-wall member 300 has an L-shaped cross section, the reflective surface 310 is disposed at a corner of the L-shaped thick-wall member 300, and light emitted by the light source 100 enters the thick-wall member 300 and is reflected at the reflective surface 310, so that the transmission direction of the light is changed, and compared with a long thick-wall member, the thick-wall member 300 of the embodiment has a shorter length in the front-rear direction, and is suitable for a vehicle lamp with insufficient front-rear space, and the flexibility of the optical system arrangement is improved.

In order to make the light more uniform, a third pattern is provided on the reflective surface 310 in an oblique direction of the reflective surface. Specifically, the third pattern may be stepped, striped, serrated, etc., which is not limited in this embodiment.

In addition, in order to optimize the light emission effect, the light source 100 employs LEDs, and the reflection surface 310 is a total reflection surface.

In this embodiment, the light emitting surface 330 is provided as an inclined surface for modeling and lighting design considerations.

Further, the air lens 200 is disposed parallel to the direction of the reflective surface 310, and the air lens 200 is disposed parallel to the direction of the reflective surface 310, so as to conform to the optical rule, and enable the light to strike the light emitting surface 330 more after passing through the reflective surface 310 and the air lens 200.

In this embodiment, as shown in fig. 1, 3 and 4, the light emitting surface 330 has an included angle with the light emitting direction, and the light emitting surface 330 is provided with a light emitting surface pattern 331. Specifically, by providing the light emitting surface pattern 331 to further radiate the outgoing light, a more uniform lighting effect is obtained, and the problem of dark areas on the light emitting surface 330 is reduced.

Further, as shown in the complement of fig. 2, the sidewall of the thick-walled member 300 is provided with a fourth pattern 340. Specifically, the sidewall of the portion of the thick-walled member 300 between the light emitting surface 330 and the air lens 200 is provided with a fourth pattern 340 for making the light uniform. It can be understood that some light rays refracted from the air lens 200 may exit from the sidewall of the thick-wall member 300, which affects the lighting effect, and the fourth pattern 340 reflects the light rays toward the light emitting surface 330, so as to reduce the loss of light rays, and the fourth pattern 340 also has the function of diverging light rays, so as to increase the uniformity of light emitted from the light emitting surface 330.

Specifically, the fourth pattern 340 may be a stripe pattern as shown in the complement of fig. 2, and of course, the present embodiment is not limited to the type and number of the fourth pattern 340, as long as the effect of reflecting and uniformly illuminating light is satisfied.

In this embodiment, the optical system further includes a lamp housing 400 and a lamp mirror 500, where the lamp housing 400 and the lamp mirror 500 are integrally formed with the light incident portion 320 of the thick-wall member 300, and the lamp housing 400 and the lamp mirror 500 are used for converging the light emitted by the light source 100 and restricting the irradiation angle of the light, so that the lighting effect of the vehicle lamp is good and uniform.

The present embodiment also provides a principle of an optical system, which is specifically as follows:

light is emitted by the light source 100, the light is converged into parallel-like light through the lamp shade 400 and the lamp mirror 500 to be incident on the thick-wall member 300, the parallel-like light is reflected through the reflecting surface 310, the reflected light is refracted and diverged due to the fact that the light passes through the first surface 210 of the air lens 200 from the photophobic medium to the photophobic medium, the refracted light is converged due to the fact that the light passes through the second surface 220 of the air lens 200 from the photophobic medium to the photophobic medium, the converged light continuously advances to reach the light emitting surface 330 and then exits, uniform lighting effect is obtained, loss of the light is reduced, and light efficiency is guaranteed.

The embodiment also provides a car lamp, which comprises a plurality of optical systems connected in sequence.

Specifically, when the multiple optical systems are connected, the reflective surface 310 is configured to include multiple small step-shaped third patterns, so as to reduce the gap drop when the multiple reflective surfaces 310 are sequentially connected, and further improve the problem that when the multiple light emitting surfaces are connected, light cannot reach the connection position, and therefore a dark area exists on the light emitting surface.

In addition, when the plurality of optical systems are connected, the plurality of lamp covers 400 are mutually combined together, the gap between the lamp covers is reduced, and the problem of dark areas of the light emitting surface 330 can be improved.

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. An optical system is characterized by comprising a light source and a thick-wall member, wherein the light source is arranged corresponding to a light inlet part of the thick-wall member, and an air lens is arranged in the thick-wall member;

the light emitted by the light source can enter the thick-wall member from the light inlet part, and is refracted by the air lens and then emitted from the light-emitting surface of the thick-wall member.

2. An optical system according to claim 1, wherein the air lens has a first surface and a second surface through which the light passes in sequence, the first surface and the second surface being provided with a first pattern and a second pattern for modulating the light, respectively.

3. An optical system according to claim 1, wherein the thick-walled member is further provided internally with reflective surfaces.

4. An optical system according to claim 3, wherein the thick-walled member is L-shaped in cross section, and the reflecting surface is provided at a corner of the thick-walled member.

5. An optical system as claimed in claim 3, wherein the reflective surface is provided with a third pattern.

6. An optical system according to claim 3, wherein the light emitting surface is an inclined surface, and the light emitting surface is provided with a light emitting surface pattern.

7. An optical system according to claim 6, wherein the air lens is disposed parallel to the direction in which the reflecting surface is disposed.

8. An optical system according to claim 1, wherein the thick-walled member sidewall is provided with a fourth pattern.

9. An optical system according to claim 1, further comprising a lamp housing and a lamp mirror, the lamp housing and the lamp mirror being integrally formed with the light entrance portion of the thick-walled member for converging light from the light source.

10. A vehicle lamp comprising a plurality of optical systems according to any one of claims 1-9 connected in sequence.