CN214038254U

CN214038254U - Lens with uniform light spots and clean cut-off boundary

Info

Publication number: CN214038254U
Application number: CN202120067568.0U
Authority: CN
Inventors: 贺佐成
Original assignee: Shenzhen Zhihongtong Technology Co ltd
Current assignee: Shenzhen Zhihongtong Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-24
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to a technical field of lens discloses a facula is even and clean lens that ends in border, include: the transmission part is provided with a first surface and a second surface which are oppositely arranged, the first surface is a first scaly surface, and the second surface is a fog surface; the reflection part is arranged in the transmission part in a surrounding mode and extends in the direction from the first surface to the second surface, the reflection part deviates from the transmission part and is arranged in a diffused mode, and the transmission part and the reflection part are integrally formed. The utility model discloses the even and clean lens that ends in boundary of facula that technical scheme provided, the facula is more even and have clean cut-off line.

Description

Lens with uniform light spots and clean cut-off boundary

Technical Field

The patent of the utility model relates to a technical field of lens particularly, relates to a facula is even and the clean lens that ends in border.

Background

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

In the prior art, the penetrating lens generally has an inner surface arranged opposite to the COB LED and an outer surface arranged away from the COB LED, and light of the COB LED passes through the inner and outer surfaces of the lens to be refracted to condense the light.

However, the inner and outer surfaces of the transmissive lens are smooth, and when the COB LED tube passes through the lens, the generated light spots are not uniform, and more obvious yellow spots appear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a facula is even and the clean lens that ends in boundary aims at solving prior art, and COB LED's light sees through the inhomogeneous problem of facula that lens produced.

The utility model discloses a realize like this, a facula is even and clean lens that ends in border, include:

the transmission part is provided with a first surface and a second surface which are oppositely arranged, the first surface is a first scaly surface, and the second surface is a fog surface;

the reflection part is arranged in the transmission part in a surrounding mode and extends in the direction from the first surface to the second surface, the reflection part deviates from the transmission part and is arranged in a diffused mode, and the transmission part and the reflection part are integrally formed.

Optionally, the first scale surface is a compound eye surface formed by adjacently arranging a plurality of convex particles.

Optionally, the first surface is flat and straight, and the second surface is convex arc surface-shaped.

Optionally, the reflecting portion has a bottom surface and a top surface which are oppositely arranged, the middle of the bottom surface is provided with a first groove, and the bottom of the first groove is provided with the first surface.

Optionally, the top surface is arranged to diverge away from the transmission part in a direction from the first surface to the second surface.

Optionally, a second groove is formed in the middle of the top surface, and the second surface is arranged at the bottom of the second groove.

Optionally, the second surface is convex, and the second surface protrudes from the notch of the second groove.

Optionally, the reflective portion has an outer side surface surrounding and facing away from the transmissive portion, and an annular flange is annularly disposed at a junction of the outer side surface and the top surface.

Optionally, the reflection portion has an outer side surface surrounding and facing away from the transmission portion, and the outer side surface is a second scale surface.

Optionally, the second scale surface is formed by a plurality of trapezoidal surfaces arranged adjacently.

Compared with the prior art, the utility model provides an even and clean lens that ends in boundary of facula, when using this lens, COB LED's light can produce refraction spotlight from transmission portion, produce reflection spotlight from reflection portion, and, the very big non-light tight homogeneity that has increased of first scale and fog face through perspective portion, can not produce the macula lutea, and simultaneously, spotlight through transmission portion and reflection portion, make the light that should pass through have clean cut-off line, compare in current lens, shine more evenly and have clean cut-off line, and simultaneously, also can avoid directly projecting through its first scale and the fog face of establishing, it is more soft. The problem of among the prior art, COB LED's light sees through the inhomogeneous light spot that lens produced is solved.

Drawings

Fig. 1 is a schematic cross-sectional view of a lens provided by the present invention, which has a uniform light spot and a clean boundary;

fig. 2 is a schematic bottom view of the lens with uniform light spots and clean boundary.

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 and 2, the preferred embodiment of the present invention is provided.

The embodiment of the utility model provides an in, the clean lens that ends in this facula even and boundary, include:

the transmission part 10, the transmission part 10 has a first surface 11 and a second surface 12 which are oppositely arranged, the first surface 11 is a first scaly surface, and the second surface 12 is a fog surface;

and the reflecting part 20 is arranged on the transmitting part 10 in a surrounding manner, the reflecting part 20 is arranged to be diffused away from the transmitting part 10 along the direction from the first surface 11 to the second surface 12, and the transmitting part 10 and the reflecting part 20 are integrally formed.

The first scale surface mentioned here is constituted by a plurality of concave-convex structures to improve the uniformity of light, and the matte surface is a surface rougher than a plane. In addition, the diffusion arrangement of the reflection part 20 as referred to herein means that the outer diameter of the reflection part 20 gradually increases in the direction from the first surface 11 to the second surface 12, that is, the outer side surface 23 of the reflection part 20 is obliquely expanded to serve as a light reflecting the COB LED.

In this embodiment, when using this lens, COB LED's light can produce refraction spotlight from transmission portion 10, produces reflection spotlight from reflection portion 20, and, the very big non-light tight homogeneity that has increased through the first scale and the fog face of perspective portion, can not produce the macula lutea, simultaneously, through transmission portion 10 and reflection portion 20 spotlight, make this light that passes through have clean cut-off line, compare in current lens, shine more evenly and have clean cut-off line, simultaneously, also can avoid directly projecting through first scale and the fog face that it was established, it is more soft.

Referring to fig. 1, in an embodiment of the present invention, the first scale surface is a compound eye surface formed by a plurality of protruding particles arranged adjacently.

The convex grains are same in shape and size, the convex grains can be regarded as a plurality of small convex lens surfaces, and each convex grain can generate a light condensation effect on light rays, so that the light energy utilization rate can be improved through the first scale surface, and large-area uniform illumination can be obtained.

The first surface 11 is straight, and the second surface 12 is convex.

That is, the compound eye surface is arranged in a plane, so that the illumination range is large and uniform compared with the convex arc-shaped first surface 11. The convex second surface 12 realizes the light-gathering effect, so that the brightness is more concentrated. Thus, the lens can exhibit a uniform and high-luminance effect as a whole in combination with the light condensing effect of the reflecting portion 20

Referring to fig. 1 and 2, in an embodiment of the present invention, the reflective portion 20 has a bottom surface 21 and a top surface 22 disposed opposite to each other, a first groove 20a is formed in a middle portion of the bottom surface 21, and a first surface 11 is formed at a bottom of the first groove 20 a.

The bottom surface 21 is arranged in a plane, and the first recess 20a is used for placing the COB LED so that the light of the COB LED is transmitted through the see-through part and reflected from the reflection part 20. In addition, in this embodiment, the groove is a cylindrical opening groove, and the side surface of the groove is a smooth surface, so as to improve the reflected light intensity and the overall brightness of the light transmission of the lens.

And, in the direction from the first surface 11 to the second surface 12, the top surface 22 is arranged diffusely away from the transmissive part 10.

The top surface 22 is smooth to enhance the intensity of the reflected light, and the diffusion arrangement described herein, i.e., the top surface 22 is obliquely diverging and the top surface 22 is concavely curved to facilitate the concentration of the reflected light.

In order to receive the above, a second groove is provided in the middle of the top surface 22, and the bottom of the second groove is provided with a second surface 12. And, second surface 12 is the convex cambered surface form, and second surface 12 protrusion is in the notch of second recess.

Through such setting, can improve mixed light effect for the facula is more even.

Referring to fig. 1 and 2, in an embodiment of the present invention, the reflective portion 20 has an outer side 23 surrounding and facing away from the transmissive portion 10, and an annular flange 24 is disposed around a junction between the outer side 23 and the top surface 22.

The annular flange 24 serves to mount the lens for securing the lens.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, the reflection portion 20 has an outer side surface 23 surrounding and departing from the transmission portion 10, and the outer side surface 23 is a second scale surface.

The reflecting portion 20 can make the light spot more uniform when the light is condensed by the given second scale surface.

Specifically, in the present embodiment, the second scale surface is formed by adjacently arranging a plurality of trapezoidal surfaces.

Whole second scale is convex arc face shape, and by bottom surface 21 to top surface 22's direction, the area of trapezoidal face increases gradually for whole lateral surface 23 spotlight effect is better, and the facula is more even. Of course, in other embodiments, the outer side surface 23 may also be a strip scale surface, which is not described in detail.

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

1. A lens with a uniform spot and a clean cut-off boundary, comprising:

2. The lens with uniform light spot and clean boundary as claimed in claim 1, wherein said first scale surface is a compound eye surface formed by a plurality of convex particles arranged adjacently.

3. The lens with uniform light spot and clean boundary as claimed in claim 1, wherein said first surface is flat and said second surface is convex.

4. A lens with uniform light spot and clean boundary as claimed in any one of claims 1 to 3, wherein the reflecting portion has a bottom surface and a top surface which are oppositely arranged, the middle of the bottom surface has a first groove, and the bottom of the first groove is provided with the first surface.

5. The lens with uniform light spot and clean boundary as claimed in claim 4, wherein said top surface is arranged to diverge away from said transmissive portion in a direction from said first surface to said second surface.

6. The lens with uniform light spot and clean boundary cutoff as claimed in claim 4 wherein said top surface has a second groove in the middle, said second groove having a groove bottom with said second surface.

7. The lens with uniform light spot and clean boundary as claimed in claim 6, wherein said second surface is convex, and said second surface protrudes from the opening of said second groove.

8. The lens with uniform light spot and clean boundary cutoff as claimed in claim 4 wherein said reflective portion has an outer side surrounding and facing away from said transmissive portion, and an annular flange is disposed around the junction of said outer side and said top surface.

9. A lens with uniform light spot and clean boundary as claimed in any one of claims 1 to 3, wherein the reflecting portion has an outer side surface surrounding and facing away from the transmitting portion, and the outer side surface is a second scale surface.

10. The lens with uniform light spot and clean boundary as claimed in claim 9, wherein said second scale surface is formed by a plurality of trapezoidal surfaces arranged adjacently.