Shading sheet processing method and shading sheet

A processing method and technology of shading film, applied in the processing method of shading film and the field of shading film, to achieve the effect of ensuring shooting effect and improving quality

Active Publication Date: 2017-08-15
RUITAI OPTICAL CHANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide a treatment method of a light-shielding sheet and a light-shielding sheet, aiming to solve the glare, halo and ghost image caused by the reflection and diffusion of the PET material exposed on the wall of the light hole in the existing plastic light-shielding sheet bad technical issues

Method used

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  • Shading sheet processing method and shading sheet
  • Shading sheet processing method and shading sheet
  • Shading sheet processing method and shading sheet

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Embodiment Construction

[0033] Combine below Figure 1 to Figure 3 The present invention is described in detail.

[0034] In order to achieve the above object, the present invention provides a method for processing a shading sheet, the processing method of the shading sheet includes the following steps:

[0035] In step S1 , a light-shielding sheet 1 is provided, and the light-shielding sheet includes a base material 4 and black coatings 3 and 5 coated on opposite surfaces of the base material 4 . Specifically, the base material 4 can be made of plastic material, such as PET material. The black coatings 3 and 5 can be carbon materials or other materials with light-shielding and matting functions.

[0036] In step S2 , the light-shielding sheet 1 is removed to form the light-through hole 2 . The light through hole 2 is usually made by punching process.

[0037] Step S3, etching the substrate 4 on the hole wall surrounding the light hole 2 to form a depression 6, thereby suppressing the stray light...

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PUM

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Abstract

The invention discloses a shading sheet processing method and a shading sheet. The shading sheet is suitable for optical imaging. The method comprising the steps that the shading sheet is provided, wherein the shading sheet comprises a substrate and black coatings coated on two opposite surfaces of the substrate; the shading sheet is unloaded to form a light through hole; and the substrate surrounding the hole wall of the light through hole is etched to form a recess. The structure can inhibit stray light in an optical lens from diffusing or being reflected to an imaging surface. The shooting effect is ensured. The quality of a camera product is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to an optical imaging component, in particular to a method for processing a shading sheet and the shading sheet. [0003] 【Background technique】 [0004] The light shield is an optical element used to control the amount of light in the optical system. When the external light enters the lens, the light shield set between the lenses can block the unwanted light from entering. Although the light-shielding sheet is used in the optical system to achieve the effect of controlling the light, when the light is irradiated on the wall of the light-passing hole of the light-shielding sheet, the light reflected and diffused from the hole wall also interferes with the optical system. In the early days, the shading sheet was oxidized and blackened by metal stamping to achieve the purpose of complete extinction, but its cost was several times more expensive than the plastic shading sheet. The polyethylene terephthalate (PET) material of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B11/04G02B1/10
CPCG03B11/04G02B1/10
Inventor 王书宪严绪东刘浩
Owner RUITAI OPTICAL CHANGZHOU CO LTD
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