CN107703697A - A kind of lens barrel bottom interior wall with photoextinction - Google Patents

Abstract

The invention discloses an inner wall at the bottom of the lens barrel with a light-extinction effect. The inner wall at the bottom of the lens barrel is provided with patterns in a wavy shape; the patterns are provided with crests and troughs. The invention has simple processing and low cost, and the inner wall of the proficient bottom is designed as a wavy pattern, which can change the light beam reflection direction and reflect in a scattered manner, greatly weakening the energy of the reflected light, thereby achieving the purpose of eliminating stray light.

Description

A bottom inner wall of lens barrel with extinction effect

technical field

The invention relates to the field of mobile phone cameras, in particular to an inner wall at the bottom of a lens barrel with a light extinction effect.

Background technique

At present, the requirements for lens stray light in the mobile phone market are becoming more and more stringent, because there are many components that make up high-end lenses, and there are many factors that produce stray light. At present, the inner wall at the bottom of the lens barrel is usually designed in a ring shape. When incident light hits the lens barrel, the light is reflected in a single direction, and the converging strong reflected beam hits the image surface to cause strong stray light. In order to eliminate stray light, some measures to prevent and eliminate stray light are usually done on the surface of the inner wall of the component. At present, the usual measure is to atomize the surface of the inner wall, but this can only reduce the stray light for some lenses, but this degree of reduction sometimes cannot meet the demand.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a bottom inner wall of the lens barrel with a delustering effect, and the specific technical scheme is as follows:

An inner wall at the bottom of the lens barrel with a matting effect, the inner wall at the bottom of the lens barrel is provided with a pattern in a wavy shape;

The pattern is provided with crests and troughs.

The preferred solution for the design of the extinction of the inner wall at the bottom of the lens barrel is that the interval between the patterns is 0.15mm-0.3mm.

For the inner wall at the bottom of the lens barrel with a matting effect, a preferred solution is that the crests and troughs of the pattern are provided with 0.05mm-0.1mm rounded corners.

The preferred solution of the inner wall at the bottom of the lens barrel with a matting effect is that a demoulding bevel of 3°-5° is provided in the depth direction of the pattern.

For the inner wall at the bottom of the lens barrel with a matting effect, the preferred solution is to dispense glue at the contact between the lens and the pattern.

Advantages of the present invention: the technical scheme of the present invention designs the inner wall of the bottom of the lens barrel into a wavy pattern, which can change the reflection direction of the light beam and reflect in a scattered manner, greatly reducing the energy of the reflected light, thereby achieving the purpose of eliminating stray light; at the same time, the final product After dispensing glue, part of the glue can seep into the wave pattern, which can increase the push-off force of the lens.

Description of drawings

Fig. 1 is a kind of schematic diagram of the structure of the bottom inner wall of the lens barrel with delustering effect;

Fig. 2 is a schematic diagram of the structure of the lens and the inner wall at the bottom of the lens barrel.

In the figure, 1 is the lens barrel, 2 is the pattern, 3 is the lens, and 4 is dispensing.

detailed description

As shown in Figures 1-2, a bottom inner wall of the lens barrel with a matting effect, the inner wall of the bottom of the lens barrel 1 is provided with a pattern 2 in a wave shape;

The pattern 2 is provided with crests and troughs.

The distance between the pattern 2 and the pattern is 0.15mm-0.3mm.

The crests and troughs of the pattern 2 are provided with rounded corners of 0.05mm-0.1mm.

The depth direction of the pattern 2 is provided with a demoulding angle of 3°-5°.

Dispense glue 4 where the lens 3 is in contact with the pattern.

Claims (5)

1. A bottom inner wall of the lens barrel with delustering effect, characterized in that: the inner wall of the bottom of the lens barrel is provided with a pattern and is wavy; The pattern is provided with crests and troughs. 2 . The inner wall of the bottom of the lens barrel with a matting effect according to claim 1 , wherein the distance between the patterns is 0.15mm-0.3mm. 3 . The inner wall of the bottom of the lens barrel with a matting effect as claimed in claim 1 , wherein the crests and troughs of the pattern are provided with rounded corners of 0.05mm-0.1mm. 4 . 4 . The inner wall of the bottom of the lens barrel with a matting effect as claimed in claim 1 , wherein a demoulding angle of 3°-5° is set in the depth direction of the pattern. 5. The bottom inner wall of the lens barrel with matting effect as claimed in claim 1, characterized in that glue is dispensed at the contact between the lens and the pattern.