CN204536581U - A light-shielding sheet for mobile phone lens - Google Patents

Abstract

The utility model discloses a light shielding sheet for a mobile phone lens, wherein a matte groove is provided on the inner wall of a light transmission hole along its circumference, and the matte groove can be wavy or sawtooth-shaped. When light is directed to the inner wall of the light transmission hole, the matte groove diffusely reflects the incident light, effectively preventing the reflected light from being directed to an image plane, thereby improving the quality of the image. At the same time, the utility model has the characteristics of simple structure and low production cost.

Description

A light-shielding sheet for mobile phone lens

【Technical field】

The utility model relates to a mobile phone lens, in particular to a light-shielding sheet for the mobile phone lens.

【Background technique】

In the present common light-shielding sheet, the light-transmitting hole on it is a light hole, and the inner wall surface of the light-transmitting hole is all without any treatment. Since the light-shielding sheet itself is used to block excess light, stronger light will gather around the light-transmitting hole of the ordinary light-shielding sheet. When the thickness of the shading sheet is thicker, there will be more reflected light on the inner wall of the light transmission hole, and at this time, shadows that destroy the image will be formed on the imaging surface.

Moreover, if the thickness of the light-shielding sheet is reduced, the inner wall of the light-transmitting hole will also reflect light. At this time, the light-shielding sheet cannot be subjected to the relevant scratching and matting treatment; in addition, if the surface of the inner wall of the light-shielding hole is coated Paint, although this method can solve the problem of light reflection on the inner wall of the light-transmitting hole, but this method will require a large cost, and the operation is difficult and the performance is unstable.

The utility model researches and proposes in view of the deficiencies in the prior art.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a light-shielding sheet for mobile phone lens. The inner wall of the light-transmitting hole is provided with extinction grooves along its circumference. The extinction grooves can be wavy or zigzag. When on the inner wall of the light hole, the extinction grooves diffusely reflect the incident light, effectively avoiding the reflected light from being directed to the image plane, thereby improving the quality of the image. At the same time, the utility model has the advantages of simple structure and low production cost. specialty.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme for a light-shielding sheet used for mobile phone lenses:

The utility model is a light-shielding sheet for mobile phone lenses, which comprises a light-shielding sheet body, a light-transmitting hole is arranged in the middle of the light-shielding sheet body, and a light-shielding hole is arranged on the inner wall of the light-transmitting hole along its circumference to eliminate light reflection on the inner wall of the light-shielding hole. Matting dimples.

The extinction grooves are wavy or zigzag.

The circular array of the extinction grooves is on the inner wall of the light-transmitting hole.

The body of the light-shielding sheet is circular, and the light-transmitting hole is concentric with the peripheral edge of the body of the light-shielding sheet.

The thickness of the light shield body is 0.05-0.15mm.

Compared with the prior art, the utility model is a light-shielding sheet for mobile phone lens, and the wavy or zigzag extinction grooves are arranged on the inner wall of the light-transmitting hole. , the extinction grooves diffusely reflect the incident light, effectively avoiding the reflected light from hitting the image plane, thereby improving the quality of the image. The above-mentioned structure has the characteristics of simple structure and low production cost.

【Description of drawings】

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail, wherein:

Fig. 1 is a schematic structural view of the first embodiment of the utility model.

Fig. 2 is a schematic structural diagram of the second embodiment of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the embodiment of the present utility model is described in detail.

The utility model is a light-shielding sheet for mobile phone lens, comprising a circular light-shielding sheet body 1, the thickness of the light-shielding sheet body 1 is 0.05-0.15mm, and the middle part of the light-shielding sheet body 1 is provided with a light-transmitting hole 2, The light-transmitting hole 2 is concentric with the peripheral edge of the light-shielding sheet body 1, and the inner wall of the light-transmitting hole 2 is provided with extinction grooves 3 for eliminating reflection on the inner wall of the light-transmitting hole 2 along its circumference. On the inner wall of light hole 2.

When the light is incident on the inner wall of the light-transmitting hole 2, the extinction grooves 3 diffusely reflect the incident light, which prevents the reflected light from projecting onto the image plane and causing shadows, resulting in damage to the image quality of the lens.

In the first embodiment, as shown in FIG. 1 , the delustering grooves 3 are wavy.

In the second embodiment, as shown in FIG. 2 , the extinction grooves 3 are zigzag-shaped.

In addition, according to design requirements, the delustering dimples 3 can be designed as other dimple structures.

Claims (5)

1. A light-shielding sheet for mobile phone lenses, characterized in that it comprises a light-shielding sheet body (1), the middle part of the light-shielding sheet body (1) is provided with a light-transmitting hole (2), and the inside of the light-shielding hole (2) The wall is provided with extinction grooves (3) along its circumference for eliminating light reflection on the inner wall of the light transmission hole (2). 2. A light-shielding sheet for mobile phone lens according to claim 1, characterized in that said extinction groove (3) is wavy or zigzag. 3. According to claim 1 or 2, a light-shielding sheet for mobile phone lenses is characterized in that the circular array of the light-extinction concave grooves (3) is on the inner wall of the light-transmitting hole (2). 4. According to claim 1 or 2, a kind of light-shielding sheet for mobile phone lens is characterized in that the light-shielding sheet body (1) is circular, and the light-transmitting hole (2) and the light-shielding sheet body (1) The peripheral edges are concentric. 5. A kind of light-shielding sheet for mobile phone lens according to claim 1, characterized in that the thickness of the light-shielding sheet body (1) is 0.05-0.15mm.