CN211083962U - COB lens - Google Patents

Abstract

The utility model discloses a COB lens, include: lens cup and by the mirror surface that the up end undercut of lens cup formed, the protruding positive compound eye structure of establishing by a plurality of pearl points of establishing in the center of mirror surface, the divergence angle of pearl point is 137.5 degrees, the protruding accommodation space that is used for holding the COB light source that is equipped with of lower terminal surface of lens cup, the surface of lens cup sets up to spiral quadrilateral's TIR scale first structure, thereby the utility model discloses can make the facula that comes out from positive compound eye structure even, no macula lutea, and pass through the surface of lens cup sets up to spiral quadrilateral's TIR scale first structure, compares ordinary tetragonal scale first structure and has had more helical structure, can play better mixed light effect, according to the total reflection principle, reaches the effect of optical calculus to can further improve the homogeneity of facula, anti-dazzle, realize not having bad facula such as macula.

Description

COB lens

Technical Field

The utility model belongs to the technical field of lamps and lanterns, especially, indicate a COB lens.

Background

The COB light source has the advantages of high color rendering, high luminous efficiency, low thermal resistance, no light spot, energy conservation, environmental protection and the like, and in the fields of commercial lighting, exhibition hall lighting and the like with higher requirements on lighting effects such as light spot, light color, illumination intensity and the like, the COB light source is generally adopted as a light emitting source of a lamp to achieve the lighting requirements, the current indoor lighting has higher and higher requirements on the lamp, the light spot is required to be uniform, and no yellow spots exist. The lamps generally comprise a light source and a lens, and the light emitted by the light source has chromatic aberration, so the chromatic aberration needs to be reduced by the lens.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a uniformity, anti-dazzle and no yellow spot's COB lens that can improve the facula to can promote the mixed light effect.

To achieve the above object, the solution of the present invention is:

the utility model provides a COB lens, locates the luminous department of COB light source, includes: the lens cup with by the mirror surface that the up end undercut of lens cup formed, the protruding positive compound eye structure of constituteing by a plurality of pearl points of establishing in the center of mirror surface, the divergence angle of pearl point is 137.5 degrees, the protruding accommodation space that is used for holding the COB light source that is equipped with of lower terminal surface of lens cup, the surface of lens cup sets up to spiral quadrangle's TIR scale first structure.

The beads are distributed in a spiral shape.

The area of the upper end face of the lens cup body is larger than that of the lower end face of the lens cup body.

And a flange is horizontally and convexly arranged on the edge of the upper end surface of the lens cup body.

The lower end face of the lens cup body is concavely provided with a plurality of clamping grooves at intervals.

After the technical scheme is adopted, the utility model discloses a mirror surface that the up end undercut of lens cup formed, and the protruding positive compound eye structure of constituteing by a plurality of pearl points of establishing in the center of mirror surface, the divergence angle of pearl point is 137.5 degrees, and this angle is the gold angle to can make the facula that comes out from positive compound eye structure even, no macula lutea, and the cooperation passes through the surface of lens cup sets up to spiral quadrilateral's TIR squama Manis structure, compares ordinary quadrilateral squama Manis structure and has had more helical structure, can play better mixed light effect, and according to the total reflection principle, reach the effect of optics calculus, thereby can further improve the homogeneity of facula, anti-dazzle light realizes not having bad facula such as macula lutea, provides a novel outward appearance form when playing good illuminating effect.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a back schematic view of the present invention;

fig. 3 is a cross-sectional view of the present invention.

[ notation ] to show

Lens cup 1 mirror surface 2

Flange 4 of front compound eye structure 3

The accommodating space 5 is provided with a clamping groove 6.

Detailed Description

To achieve the above objects and advantages, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Tir (total Internal reflection) lenses refer to a lens system designed by using the principle of total Internal reflection, and are widely used due to their efficient light-condensing characteristics.

Referring to fig. 1 to 3, the present invention discloses a COB lens disposed at a light-emitting portion of a COB light source, including: lens cup 1 with by lens cup 1's up end face undercut forms mirror surface 2, the protruding positive compound eye structure 3 of constituteing by a plurality of pearl points of establishing in the center of mirror surface 2, the divergence angle of pearl point is 137.5 degrees, and this angle is the golden angle, lens cup 1's lower terminal surface is protruding to be equipped with accommodation space 5 that is used for holding the COB light source, lens cup 1's surface sets up to spiral quadrilateral TIR squama structure, the pearl point is the heliciform and distributes, produces the effect of two sets of helices of positive and negative.

Furthermore, the area of the upper end surface of the lens cup body 1 is larger than that of the lower end surface of the lens cup body 1, so that the irradiation area of the light source is enlarged.

And secondly, a flange 4 is horizontally and convexly arranged on the edge of the upper end face of the lens cup body 1, so that the installation is convenient.

Additionally, the concave a plurality of draw-in grooves 6 that are equipped with in lower terminal surface interval of lens cup 1, in using the utility model discloses the time, the user can in lens cup 1's lower terminal surface sets firmly a COB light source support that holds the COB light source, fastener on the COB light source support can block into in draw-in groove 6, forms fixedly, just the accommodation space 5 is aimed at to the COB light source.

In summary, the utility model is provided with a mirror surface 2 formed by the upper end surface of the lens cup body 1 being concave downwards, a front compound eye structure 3 consisting of a plurality of bead points is convexly arranged at the center of the mirror surface 2, the divergence angle of the bead points is 137.5 degrees, the angle is a golden angle, the front compound eye structure 3 adopts the shape of a sunflower-like growth base, thereby enabling the light spots coming out of the compound eye structure 3 on the front surface to be uniform and have no yellow spots, and the outer surface of the lens cup body 1 is matched to be provided with a spiral quadrilateral TIR scaly nail structure, compared with the common quadrilateral scaly nail structure, the spiral structure is added, thereby playing a better light mixing effect, according to the total reflection principle, reach the effect of optics calculus point to can further improve the homogeneity of facula, anti-dazzle realizes not having bad facula such as macula lutea, the utility model discloses provide a novel outward appearance form when can playing good illuminating effect.

The technical content and technical features of the present invention have been disclosed as above, the number of the components of the present invention is not limited to the above, and those skilled in the art may make various replacements and modifications based on the disclosure of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the embodiments disclosed, but should include various alternatives and modifications without departing from the invention, and be covered by the claims.

Claims (5)

1. The utility model provides a COB lens locates the luminous department of COB light source, its characterized in that includes: the lens cup with by the mirror surface that the up end undercut of lens cup formed, the protruding positive compound eye structure of constituteing by a plurality of pearl points of establishing in the center of mirror surface, the divergence angle of pearl point is 137.5 degrees, the protruding accommodation space that is used for holding the COB light source that is equipped with of lower terminal surface of lens cup, the surface of lens cup sets up to spiral quadrangle's TIR scale first structure.

2. The COB lens of claim 1, wherein: the beads are distributed in a spiral shape.

3. The COB lens of claim 1, wherein: the area of the upper end face of the lens cup body is larger than that of the lower end face of the lens cup body.

4. The COB lens of claim 1, wherein: and a flange is horizontally and convexly arranged on the edge of the upper end surface of the lens cup body.

5. The COB lens of claim 1, wherein: the lower end face of the lens cup body is concavely provided with a plurality of clamping grooves at intervals.

Images