CN115523465A

CN115523465A - Lens and car light

Info

Publication number: CN115523465A
Application number: CN202211208539.7A
Authority: CN
Inventors: 陈思远
Original assignee: Guangzhou Wei Si Automobile Parts Co ltd
Current assignee: Guangzhou Wei Si Automobile Parts Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-27

Abstract

The embodiment of the invention provides a lens and a car lamp, and relates to the technical field of car lamps. This lens includes curved lens, curved lens includes a plurality of lens units, a plurality of lens units arrange in proper order, and a plurality of lens units are the ladder and distribute, wherein, the incident plane of a plurality of lens units is parallel to each other, because the incident plane of lens unit is parallel to each other, can guarantee parallel light all to kick into the incident plane of a plurality of lens units perpendicularly, it is unanimous for light-emitting direction contained angle to guarantee that the light that finally wears out the outer lamp cover is avoided light to take place to deflect, thereby optical property has been improved.

Description

Lens and car light

Technical Field

The invention relates to the technical field of vehicle lamps, in particular to a lens and a vehicle lamp.

Background

The vehicle lamp is a tool for illuminating the road when the vehicle runs at night and is also a prompting tool for sending various vehicle running signals, and mainly comprises a lamp shell, a light source, an outer lampshade and a lens.

In the prior art, when light emitted by a light source passes through a lens and penetrates out of an outer lampshade, the light deflects, and the optical performance is seriously influenced.

Disclosure of Invention

The invention provides a lens and a vehicle lamp, which can improve the optical performance of the vehicle lamp.

Embodiments of the invention may be implemented as follows:

an embodiment of the present invention provides a lens, including:

the arc lens comprises a plurality of lens units which are sequentially arranged and distributed in a step shape;

wherein the incident surfaces of the plurality of lens units are parallel to each other.

Optionally, the middle of the refracting surface of the lens unit is convex in a direction away from the incident surface of the lens unit to form a lens convex.

Optionally, the middle of the refracting surface of the lens unit is recessed toward a direction close to the incident surface of the lens unit to form a lens groove.

Optionally, a plurality of the lens units distributed along the first preset direction are distributed in a step shape.

Optionally, the plurality of lens units distributed along a second preset direction are distributed in a step manner, and the first preset direction is perpendicular to the second preset direction.

Optionally, the lens further comprises a main lens, the main lens comprises a plurality of lens modules, the plurality of lens modules are arranged in sequence, and the plurality of lens modules and the plurality of lens units are connected;

the lens modules distributed along the length direction of the main lens are distributed linearly, and the lens modules distributed along the width direction of the main lens are distributed in a stepped manner.

Optionally, the lens further includes a first inner lens, the first inner lens and the main lens are arranged at an interval, and the first inner lens and the arc-shaped lens are arranged at an interval;

the first inner lens is used for dispersing light rays.

Optionally, the lens further includes a second inner lens, the second inner lens and the first inner lens are disposed at an interval, the second inner lens is located between the main lens and the first inner lens, and one side of the second inner lens, which is far away from the main lens, is provided with a plurality of quasi-straight teeth, and the plurality of quasi-straight teeth are respectively used for perpendicularly incident light, which is dispersed by the first inner lens, on the incident surface of the lens unit.

Alternatively, the refractive surfaces of a plurality of the lens units are arranged in parallel.

The embodiment of the invention also provides a vehicle lamp, which comprises a lamp shell, a light source, an outer lampshade and the lens;

the utility model discloses a lamp body, lens unit, outer lamp cover, light source, lens unit, outer lamp cover install in the lamp body just prescribes a limit to jointly and holds the cavity, the light source set up in hold in the cavity, and for lens keep away from outer lamp cover, the light source is used for emitting light, light is used for the perpendicular entering behind the incident surface of lens unit, pass in proper order the refraction face of lens unit and outer lamp cover.

The beneficial effects of the lens and the vehicle lamp of the embodiment of the invention include, for example:

the embodiment of the invention provides a lens, which comprises an arc-shaped lens, wherein the arc-shaped lens comprises a plurality of lens units, the lens units are sequentially arranged, and are distributed in a stepped manner, the incident surfaces of the lens units are mutually parallel, and because the incident surfaces of the lens units are mutually parallel, parallel light rays can be ensured to be vertically incident into the incident surfaces of the lens units, so that the included angles of the light rays finally penetrating out of an outer lampshade relative to a light emergent direction are ensured to be consistent, the light rays are prevented from deflecting, and the optical performance is improved.

The embodiment of the invention also provides the automobile lamp, which comprises a lamp shell, a light source, an outer lampshade and the lens, wherein the outer lampshade is arranged on the lamp shell and defines a containing cavity together, the light source is arranged in the containing cavity and is far away from the outer lampshade relative to the lens, the light source is used for emitting light rays, and the light rays vertically enter the incident surface of the lens unit and then sequentially pass through the refraction surface of the lens unit and the outer lampshade, so that the light rays are prevented from deflecting, and the optical performance is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic view of a vehicle lamp provided in an embodiment of the present invention;

fig. 2 is a first cross-sectional view of a vehicular lamp provided in an embodiment of the invention;

fig. 3 is a partially enlarged view of a first cross-sectional view provided in an embodiment of the present invention;

fig. 4 is a second cross-sectional view of the vehicular lamp provided in the embodiment of the invention;

fig. 5 is a partially enlarged view of a second cross-sectional view provided in an embodiment of the present invention;

FIG. 6 is a schematic view of a lens projection provided in an embodiment of the present invention;

fig. 7 is a schematic view of a lens groove provided in an embodiment of the present invention.

Icon: 1000-lens; 100-arc lens; 110-a lens unit; 101-lens projection; 102-a lens groove; 200-a main lens; 210-a lens module; 300-a first inner lens; 400-a second inner lens; 410-quasi-straight teeth; 2000-car light; 2100-a lamp housing; 2200-a light source; 2300-outer lamp housing; 2400-PCB board.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention 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 present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The car light is a tool for lighting the road when the car runs at night and also a prompting tool for sending various car running signals, and mainly comprises a lamp shell, a light source, an outer lampshade and a lens, and the car light is generally divided into a headlamp, a tail lamp, a steering lamp and the like.

In the prior art, part of the lamp cover of the outer lamp cover is of an arc-shaped structure, in order to ensure the attractiveness of the whole vehicle lamp, the inner lens close to the outer lamp cover is generally similar to the outer lamp cover in shape, and the inner lens close to the outer lamp cover is parallel to the outer lamp cover, so that the inner lens close to the outer lamp cover also has a lens of a part of arc-shaped structure.

After the light that sends at the light source passes through accurate straight-tooth, parallel light penetrates into the incident plane of the lens of part arc structure, because light and incident plane out of plumb, light has taken place the deflection, optical property has seriously been influenced, optical property here can be understood as facula homogeneity and the facula quality that light formed, if need guarantee optical property, the interior lens that is close to the outer lamp shade just can not be similar with the shape of outer lamp shade, be close to the interior lens and the outer lamp shade nonparallel of outer lamp shade promptly, aesthetic property has been influenced.

In view of the above, referring to fig. 1-7, embodiments of the present invention provide a lens 1000 and a vehicle lamp 2000 to solve the problem, which will be described in detail below.

Referring to fig. 1 and fig. 2, the lamp 2000 may be an automobile lamp, a motorcycle lamp, or a bicycle lamp, without limitation, and the lamp 2000 includes a lamp housing 2100, a light source 2200, an outer lamp 2300, and a lens 1000.

The outer lamp housing 2300 is mounted on the lamp housing 2100 and jointly defines a containing chamber, wherein the outer lamp housing 2300 is made of a transparent material and used for transmitting light, the lamp housing 2100 is made of a non-transparent material, the light sources 2200 are disposed in the containing chamber and far from the outer lamp housing 2300 relative to the lens 1000, specifically, the number of the light sources 2200 is multiple, the light sources 2200 can be LED lamps, the light sources 2200 are electrically connected to a PCB 2400, the PCB 2400 can be mounted on the lamp housing 2100 or on an automobile body, and the light sources 2200 are used for emitting light rays which vertically enter an incident surface of the lens unit 110 through the first inner lens 300 and the second inner lens 400 and sequentially pass through a refraction surface of the lens unit 110 and the outer lamp housing 2300.

Next, a detailed description will be given of the lens 1000, where the lens 1000 includes an arc-shaped lens 100, the arc-shaped lens 100 includes a plurality of lens units 110 (shown in fig. 3), the plurality of lens units 110 are sequentially arranged, and the plurality of lens units 110 are distributed in a step-like manner, specifically, the plurality of lens units 110 may be sequentially connected, or the plurality of lens units 110 may be integrally formed, or the plurality of lens units 110 may be sequentially attached.

Referring to fig. 3, in the present embodiment, two opposite surfaces of the lens unit 110 are a refraction surface and an incident surface, respectively, wherein the middle of the refraction surface protrudes in a direction away from the incident surface of the lens unit 110 to form the lens protrusion 101, that is, the refraction surface of the lens unit 110 is a convex curved surface, and as shown in fig. 3, a chord of the lens protrusion 101 is perpendicular to a light ray passing through the incident surface of the lens unit 110.

Because lens unit 110 is the ladder distribution, and simultaneously, the incident plane of a plurality of lens units 110 is parallel to each other, the incident plane of lens unit 110 can all be gone into to the light of parallel incidence, the light of guaranteeing to jet out outer lamp shade 2300 at last equals with the light-emitting direction contained angle, angle c and angle d promptly equal, and then guaranteed the light-emitting quality, and among the prior art, the light of parallel incidence can not the incident plane of perpendicular incidence into lens unit 110, then can lead to one of them contained angle to be greater than another contained angle far away, finally seriously influenced optical performance.

In the embodiment, the vertical direction is not limited to an absolute 90-degree included angle, but may be close to the vertical direction, for example, the included angle is 85 degrees to 90 degrees.

In order to ensure that the light entering the arc-shaped lens 100 is parallel light, please refer to fig. 4, the lens 1000 further includes a first inner lens 300 and a second inner lens 400, the first inner lens 300 is spaced apart from the main lens 200, and the first inner lens 300 is also spaced apart from the arc-shaped lens 100, specifically, the first inner lens 300 can be connected to the main lens 200 and the arc-shaped lens 100 through a connecting rod, the second inner lens 400 is spaced apart from the first inner lens 300, and the second inner lens 400 can be connected to the first inner lens 300 through a connecting member, where the connecting rod can be understood as a rod made of a transparent material.

Referring to fig. 2, the second inner lens 400 is located between the main lens 200 and the first inner lens 300, and a side away from the main lens 200 has a plurality of quasi-straight teeth 410, the first inner lens 300 is used for dispersing light of the light source 2200, the dispersed light is respectively emitted to the plurality of quasi-straight teeth 410, and the plurality of quasi-straight teeth 410 are respectively used for vertically emitting the light dispersed by the first inner lens 300 of the lens 1000 to the incident surface of the lens unit 110.

Specifically, the principle of the first inner lens 300 and the second inner lens 400 can refer to the first layer lens and the second layer lens in the prior art, and the description thereof is omitted.

Referring to fig. 2 and 3 again, in order to ensure that the arc-shaped lens 100 is parallel to the arc-shaped section of the left side of the outer lampshade 2300, the plurality of lens units 110 distributed along the first predetermined direction are distributed in a step shape, where the first predetermined direction is the extending direction of the arc-shaped section of the outer lampshade 2300.

Meanwhile, the plurality of lens units 110 distributed along the second preset direction are also distributed in a step manner, the first preset direction is perpendicular to the second preset direction, the second preset direction is an inclined direction of an arc-shaped section part of the outer lampshade 2300, specifically, the distance from the highest point of the lens protrusion 101 of each lens unit 110 to the incident surface of the outer lampshade 2300 is equal, the adjacent lens protrusions 101 are distributed in a step manner, the incident surfaces of the lens units 110 are also distributed in a step manner, each lens unit 110 is identical, the incident surfaces of the plurality of lens units 110 are arranged in parallel, and the refraction surfaces of the plurality of lens units 110 are arranged in parallel.

Referring to fig. 4 and 5, in order to be parallel to the non-arc section of the outer lamp cover 2300, the lens 1000 further includes a main lens 200, the main lens 200 is a rectangular plate structure, the main lens 200 includes a plurality of lens modules 210, the lens modules 210 are the same as the lens units 110 and can be made of transparent materials, the lens modules 210 are sequentially arranged, specifically, the lens modules 210 can be sequentially connected, or the lens modules 210 can be integrally formed, or the lens modules 210 can be sequentially attached, and the lens modules 210 and the lens units 110 are adjacently disposed.

The main lens 200 and the arc lens 100 are integrally formed, specifically, the lens units 110 at the edge of the main lens 200 and the edge of the arc lens 100 are connected, the lens modules 210 distributed along the length direction of the main lens 200 are linearly distributed, that is, the lens modules 210 distributed along the Y direction are linearly distributed, and the lens modules 210 distributed along the width direction of the main lens 200 are distributed in a step-like manner, that is, the lens modules 210 distributed along the inclined direction of the outer cover 2300 are distributed in a step-like manner (as shown in fig. 5). Specifically, the distance from the highest point of the lens protrusion 101 of each lens module 210 to the incident surface of the outer lamp cover 2300 is equal.

Because each lens module 210 has a parallel incident surface, the incident surfaces of the lens modules 210 are parallel to each other, the parallel incident light can be vertically incident into the incident surface of the lens module 210, the included angle between the light from the outer lampshade 2300 and the light-emitting direction of the light after passing through the refraction surface of each lens module 210 is equal, that is, the angle a and the angle b are equal, and the light-emitting quality is further ensured.

It should be noted that, in other embodiments, the middle of the refractive surface of the lens unit 110 is recessed toward the direction close to the incident surface of the lens unit 110 to form a lens groove 102 (as shown in fig. 7), and the light diffusion angle can be changed by adjusting the curvatures of the lens protrusion 101 and the lens groove 102 to meet the expected requirement.

To sum up, this lens includes curved lens 100, curved lens 100 includes a plurality of lens unit 110, a plurality of lens unit 110 arrange in proper order, and a plurality of lens unit 110 are the ladder distribution, wherein, the incident plane of a plurality of lens unit 110 is parallel to each other, because the incident plane of lens unit 110 is parallel to each other, can guarantee that parallel light all jets into the incident plane of a plurality of lens unit 110 perpendicularly, for the light-emitting direction contained angle unanimity for the light-emitting direction of the light that guarantees finally to wear out outer lamp shade 2300, avoid light to take place to deflect, thereby optical property has been improved.

The vehicle lamp 2000 comprises a lamp housing 2100, a light source 2200, an outer lamp cover 2300 and the lens 1000, wherein the outer lamp cover 2300 is mounted on the lamp housing 2100 and jointly defines a containing cavity, the light source 2200 is arranged in the containing cavity and is far away from the outer lamp cover 2300 relative to the lens 1000, the light source 2200 is used for emitting light rays, and the light rays are used for perpendicularly entering an incident surface of the lens unit 110 and then sequentially pass through a refraction surface of the lens unit 110 and the outer lamp cover 2300, so that the light rays are prevented from deflecting, and the optical performance is improved.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A lens, comprising:

the arc-shaped lens (100), the arc-shaped lens (100) comprises a plurality of lens units (110), the lens units (110) are sequentially arranged, and the lens units (110) are distributed in a step shape;

wherein the incidence planes of the plurality of lens units (110) are parallel to each other.

2. The lens according to claim 1, characterized in that the refractive surface middle of the lens unit (110) is convex in a direction away from the incident surface of the lens unit (110) to form a lens convex (101).

3. The lens according to claim 1, wherein the middle of the refractive surface of the lens unit (110) is recessed toward a direction close to the incident surface of the lens unit (110) to form a lens groove (102).

4. The lens according to claim 1, wherein the plurality of lens units (110) distributed along the first predetermined direction are distributed in a step shape.

5. The lens according to claim 4, wherein said plurality of lens elements (110) distributed along a second predetermined direction are distributed in a step, said first predetermined direction being perpendicular to said second predetermined direction.

6. The lens according to claim 1, characterized in that the lens further comprises a main lens (200), the main lens (200) comprising a plurality of lens modules (210), the plurality of lens modules (210) being arranged in sequence, the plurality of lens modules (210) being connected with the plurality of lens units (110);

the plurality of lens modules (210) distributed along the length direction of the main lens (200) are linearly distributed, and the plurality of lens modules (210) distributed along the width direction of the main lens (200) are distributed in a stepped manner.

7. The lens of claim 6, further comprising a first inner lens (300), wherein the first inner lens (300) is spaced apart from the main lens (200), and wherein the first inner lens (300) is spaced apart from the curved lens (100);

the first inner lens (300) is used for dispersing light rays.

8. The lens according to claim 7, characterized in that the lens further comprises a second inner lens (400), the second inner lens (400) and the first inner lens (300) are arranged at intervals, the second inner lens (400) is located between the main lens (200) and the first inner lens (300), and a side away from the main lens (200) is provided with a plurality of quasi-straight teeth (410), and the plurality of quasi-straight teeth (410) are respectively used for perpendicularly incidence of light dispersed by the first inner lens (300) on an incidence plane of the lens unit (110).

9. The lens according to claim 1, wherein the refractive surfaces of a plurality of said lens units (110) are arranged in parallel.

10. A vehicle lamp (2000) comprising a lamp housing (2100), a light source (2200), an outer cover (2300) and the lens of any one of claims 1-9;

the outer lamp cover (2300) is installed on the lamp housing (2100) and jointly defines a containing cavity, the light source (2200) is arranged in the containing cavity and far away from the outer lamp cover (2300) relative to the lens, the light source (2200) is used for emitting light, and the light vertically enters the incident surface of the lens unit (110) and then sequentially passes through the refracting surface of the lens unit (110) and the outer lamp cover (2300).