CN212510980U - Uniform light extrusion molding lens - Google Patents

Abstract

The utility model relates to a technical field of lens discloses a dodging extrusion molding lens, include: the lens is in a strip shape and provided with an incident surface, a reflecting surface and an emergent surface, the reflecting surface is positioned on two sides of the incident surface, the emergent surface, the incident surface and the reflecting surface are oppositely arranged, the incident surface is used for allowing light rays to enter the lens, the reflecting surface is used for reflecting the light rays, and the emergent surface is used for allowing light rays to exit the lens; the reflecting surface is provided with a plurality of first wiredrawing wave rhombus surfaces, and the first wiredrawing wave rhombus surfaces extend along the length direction of the lens. The utility model discloses even light extrusion molding lens that technical scheme provided owing to have a plurality of first wire drawing ripples rhombus on the plane of reflection, compares in whole plane, and the camber of each position of this plane of reflection is bigger, therefore shines back on this plane of reflection at light, and the light that shines out is more concentrated, even, therefore is difficult for appearing macula lutea or shadow, and the illuminating effect is better.

Description

Uniform light extrusion molding lens

Technical Field

The patent of the utility model relates to a technical field of lens particularly, relates to a dodging extrusion molding lens.

Background

The lens is an optical system for changing the light field distribution of the led, and generally comprises a penetrating type and/or a reflecting type, light of the led penetrates through the penetrating type lens to be refracted, light condensation is achieved, the light of the led is reflected through the reflecting type lens, light condensation is achieved, and therefore the using efficiency and the light emitting efficiency of the light are improved.

In the prior art, according to the distribution and the shape of the led, the corresponding lens is different, for example, a conical lens corresponding to a single led is provided, and certainly, a plurality of strip-shaped lenses in which the leds are arranged side by side are provided, so as to realize a light-gathering effect on the plurality of leds.

However, the strip-shaped lenses currently provided are generally arranged side by side, and the number of the leds is large, so that after light rays emitted by a plurality of leds pass through the lenses, light spots are not uniform, and a yellow spot is easily formed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an even light extrusion molding lens aims at solving prior art, and the problem of the phenomenon of macula lutea appears easily behind the light of led sees through bar-shaped's lens.

The utility model discloses a realize like this, a dodging extrusion molding lens, include:

the lens is in a strip shape and provided with an incident surface, a reflecting surface and an emergent surface, the reflecting surface is positioned on two sides of the incident surface, the emergent surface, the incident surface and the reflecting surface are oppositely arranged, the incident surface is used for allowing light rays to enter the lens, the reflecting surface is used for reflecting the light rays, and the emergent surface is used for allowing light rays to exit the lens; the reflecting surface is provided with a plurality of first wiredrawing wave rhombus surfaces, and the first wiredrawing wave rhombus surfaces extend along the length direction of the lens.

Optionally, the incident surface includes a direct surface and side surfaces, the side surfaces are located at two sides of the direct surface, and the side surfaces are connected to the reflecting surface.

Optionally, the direct light surface is an arc surface and protrudes in an arc shape in a direction departing from the exit surface.

Optionally, the side surface is planar.

Optionally, the direct incidence surface has a plurality of second rhombus surfaces, and the plurality of second rhombus surfaces extend along the length direction of the lens.

Optionally, the reflection surface includes a first reflection surface and a second reflection surface, the first reflection surface and the second reflection surface are arranged at intervals, the side-emitting surface is connected between the first reflection surface and the second reflection surface, and the side-emitting surface is connected between the second reflection surface and the direct-emitting surface.

Optionally, the direct incidence surface, the side incidence surfaces on the two sides, and the second reflection surface enclose to form an incidence cavity, and the incidence cavity is used for placing the led.

Optionally, the exit surface has a plurality of third rhombus surfaces, and the plurality of third rhombus surfaces extend along the length direction of the lens.

Optionally, the exit surface is arc-surface shaped and protrudes in an arc shape in a direction departing from the incident surface.

Optionally, the lens has a diffusing powder therein.

Compared with the prior art, the utility model provides a dodge extrusion molding lens, led's partial light is through the plane of reflection to jet out from the emitting surface, owing to have a plurality of first wire drawing ripples rhombus faces on the plane of reflection, compare in whole plane, the camber of each position of this plane of reflection is bigger, therefore shines back on this plane of reflection at light, the more concentration of the light that shines, even, therefore difficult yellow spot or shadow appear, it is better to shine the effect. The problem of among the prior art, behind the light transmission strip-shaped lens of led, the phenomenon of macula lutea appears easily is solved.

Drawings

FIG. 1 is a schematic cross-sectional view of a light homogenizing extruded lens provided by the present invention;

FIG. 2 is a schematic side view of a dodging extruded lens provided by the present invention;

fig. 3 is a schematic bottom view of the light-homogenizing extruded lens provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1 to 3, the preferred embodiment of the present invention is shown.

In the embodiment of the utility model provides an in, this dodging extrusion molding lens, include:

the lens is in a strip shape and is provided with an incident surface 11, a reflecting surface and an emergent surface 30, the reflecting surface is positioned on two sides of the incident surface 11, the emergent surface 30 is oppositely arranged with the incident surface 11 and the reflecting surface, the incident surface 11 is used for allowing light to enter the lens, the reflecting surface is used for reflecting the light, and the emergent surface 30 is used for allowing the light to exit the lens; the reflective surface has a plurality of first rhombus surfaces 211, and the plurality of first rhombus surfaces 211 are arranged to extend in the longitudinal direction of the lens.

The strip shape here can be linear type, also can be curved type, the utility model discloses in use the linear type as the example.

The incident surface 11 is centered and faces the led, the reflecting surfaces are positioned at two sides of the incident surface 11, and part of the light rays incident into the lens are reflected by the reflecting surfaces and then emitted from the emitting surface 30; the first rhombus 211 is curved and is concave in the direction of the exit surface 30.

In this embodiment, part of the light of the led is reflected by the reflection surface and is emitted from the exit surface 30, and since the reflection surface is provided with the plurality of first wire-drawing wave diamond surfaces 211, compared with the whole plane, the curvature of each position of the reflection surface is larger, after the light irradiates on the reflection surface, the irradiated light is more concentrated and uniform, and thus, yellow spots or black shadows are not easy to appear, and the irradiation effect is better.

Referring to fig. 1 to 3, in an embodiment of the present invention, the incident surface 11 includes a direct surface and a side surface 12, the side surface 12 is located at two sides of the direct surface, and the side surface 12 is connected to the reflective surface.

The direct surface is generally arranged opposite to the led, the side surfaces 12 are arranged at two sides of the direct surface, light rays entering the direct surface are refracted and then emitted through the exit surface 30, and part of light rays entering the side surfaces 12 are reflected and emitted through the reflecting surface, so that concentrated illumination is realized.

Moreover, the direct light surface is an arc surface and protrudes in an arc shape in a direction away from the exit surface 30.

Therefore, the light rays entering the direct incidence plane are refracted, namely bent towards the position of the central point, so that the light rays are intensively and uniformly irradiated.

The side emitting surface 12 is planar.

Specifically, the side-emitting surface 12 is obliquely arranged towards the direction departing from the center along the direction away from the direct-emitting surface, so that the manufacturing is convenient, the light diffusion can be avoided, and the yellow spots are reduced.

Referring to fig. 1 to 3, in an embodiment of the present invention, the direct projection surface has a plurality of second wire-drawing wave rhombus surfaces, and the plurality of second wire-drawing wave rhombus surfaces extend along the length direction of the lens.

The second rhombus is similar to the first rhombus 211, and will not be described herein, and the incident angle of the light ray entering the direct projection plane can be reduced by the second rhombus, compared with the whole plane, so that reflection is reduced, the transmitted light intensity is increased, and the irradiated light intensity is higher.

Referring to fig. 1 to 3, in an embodiment of the present invention, the reflective surface includes a first reflective surface 21 and a second reflective surface 22, the first reflective surface 21 and the second reflective surface 22 are disposed at intervals, a side-emitting surface 12 is connected between the first reflective surface 21 and the second reflective surface 22, and the side-emitting surface 12 is connected between the second reflective surface 22 and the direct-emitting surface.

Therefore, the light emitted by the lens is wider and more uniform through multi-layer reflection, so that the irradiation effect is better; in other embodiments, a third reflecting surface or more reflecting surfaces may be arranged by analogy, and details are not described again.

Furthermore, the direct surface, the side emitting surfaces 12 on both sides and the second reflecting surface 22 enclose to form an incident cavity, and the incident cavity is used for placing the led.

Thus, the light of the led is ensured to be refracted and reflected after passing through the lens, so as to ensure that the emitted light is concentrated.

In an embodiment of the present invention, the exit surface 30 has a plurality of third wire drawing wave rhombuses 31, and the plurality of third wire drawing wave rhombuses 31 extend along the length direction of the lens.

The third wiredrawing wave rhombus surface 31 and the first wiredrawing wave rhombus surface 211 are similar in shape, namely, arc surfaces, and are outwards convex. Compared with the whole plane, the third wiredrawing wave rhombus 31 has smaller curvature, and the incidence angle of the light ray emitted out of the emergent surface 30 can be reduced by arranging a plurality of third wiredrawing wave rhombus 31, so that the reflection is reduced, the transmitted light intensity is increased, and the irradiated light intensity is higher; moreover, the light rays are uniformly emitted, and the phenomenon of yellow spots is reduced.

The exit surface 30 is arc-shaped and protrudes in an arc shape in a direction away from the incident surface 11.

Thus, the light emitted from the emission surface 30 is more concentrated, thereby improving the irradiation effect.

In addition, the lens is provided with a support part protruding from the outer edges of the emergent surface 30 and the first reflecting surface 21, and the support part is not used for light transmission and is only used as a support, so that the lens is convenient to mount. Similarly, a backing ring is projected between the first reflecting surface 21 and the side emitting surface 12 in a direction away from the emitting surface 30, on one hand, the backing ring serves as a support, and on the other hand, the incident cavity is closed, so that concentrated irradiation of light rays is facilitated.

Referring to fig. 1 to 3, in an embodiment of the present invention, the lens has diffusion powder therein.

The lens is obtained by extrusion molding, the first wiredrawing wave water chestnut surface 211, the second wiredrawing wave water chestnut surface or the third wiredrawing wave water chestnut surface 31 are obtained by wiredrawing wave water chestnut surfaces, and diffusion powder is added in the first wiredrawing wave water chestnut surface, so that light passes through the diffusion powder particles in the refraction or reflection process of the light in the lens, the light is enlarged from the diffusion powder particles, the emitted light intensity is softer, eyes cannot feel dazzling, and the lens is more comfortable to use.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A light homogenizing extruded lens, comprising:

the lens is in a strip shape and provided with an incident surface, a reflecting surface and an emergent surface, the reflecting surface is positioned on two sides of the incident surface, the emergent surface, the incident surface and the reflecting surface are oppositely arranged, the incident surface is used for allowing light rays to enter the lens, the reflecting surface is used for reflecting the light rays, and the emergent surface is used for allowing light rays to exit the lens; the reflecting surface is provided with a plurality of first wiredrawing wave rhombus surfaces, and the first wiredrawing wave rhombus surfaces extend along the length direction of the lens.

2. A light homogenizing extruded lens as claimed in claim 1 wherein the entrance face comprises a direct face and side faces, the side faces being located on either side of the direct face, the side faces being attached to the reflective face.

3. A light homogenizing extruded lens as claimed in claim 2 wherein the direct face is curved and projects arcuately in a direction away from the exit face.

4. A light homogenizing extruded lens as claimed in claim 2 wherein the side surfaces are planar.

5. The dodging extrusion lens of claim 2, wherein said direct surface has a plurality of second wiredrawing rhombuses, said plurality of second wiredrawing rhombuses extending along a length of said lens.

6. An optically uniform extruded lens as claimed in claim 2, wherein said reflective surface comprises a first reflective surface and a second reflective surface, said first reflective surface and said second reflective surface being spaced apart, said side emitting surface being interposed between said first reflective surface and said second reflective surface, said side emitting surface being interposed between said second reflective surface and said direct emitting surface.

7. The uniform extrusion lens of claim 6, wherein the direct surface and the side emitting surface and the second reflecting surface on both sides enclose an incident cavity for placing the led.

8. The light homogenizing extruded lens of any one of claims 1 to 7 wherein the exit surface has a plurality of third rhomboid facets extending along the length of the lens.

9. The light homogenizing extruded lens of any one of claims 1 to 7 wherein the exit face is arcuate and projects arcuately in a direction away from the entrance face.

10. A dodging extruded lens as claimed in any one of claims 1 to 7, wherein said lens has diffusing powder therein.

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