Preparation method of blue glass infrared cut filter

A technology of infrared cut-off and infrared cut-off film, which is applied in the fields of filters, optics, optical components, etc., can solve the problems of low production yield of blue glass infrared cut-off filters, etc.

Inactive Publication Date: 2015-07-29
SHENZHEN O FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to address the problem of low production yield of blue glass infrared cut filter, and provide a method for preparing blue glass infrared cut filter with high yield

Method used

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  • Preparation method of blue glass infrared cut filter

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Embodiment Construction

[0019] The method for preparing the above-mentioned blue glass infrared cut-off filter will be further elaborated below through specific embodiments.

[0020] see figure 1 , the blue glass infrared cut-off filter preparation method of one embodiment, comprises the steps:

[0021] Step S110: Select a film system according to the transmittance of the blue glass and a preset transmittance, and select film materials according to the selected film system to coat the two opposite surfaces of the blue glass respectively.

[0022] In this embodiment, a vacuum evaporation method combined with an ion-assisted deposition method is used to coat two opposite surfaces of the blue glass. The film material is evaporated from the heat source or electron beam heating source, and the deposited molecules or atoms are continuously bombarded by ions from the ion source, thereby obtaining greater momentum, which is conducive to increasing the aggregation density of the film, improving the compactne...

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Abstract

The invention provides a preparation method for a blue glass infrared cut-off filter. The method includes the steps that film system is selected according to transmittance and a preset transmittance of blue glass, and film coating is respectively carried out on two opposite surfaces of the blue glass by means of film materials according to the selected film system; a UV film is attached to the surface of one film; the blue glass is pasted to a cutting table of an ADT cutting machine through the UV film; the blue glass is cut at the cutting speed of 8 millimeters per second and at the revolving speed of 12000-18000 revolutions per minute. The method is achieved based on a blue glass film coating method, light splitting requirements of infrared cut-off filter can be met, the edge breakage rate of blue glass cutting can be effectively reduced through reasonable selection of blue glass cutting parameters, and thus the production yield of the blue glass infrared cut-off filter can be improved.

Description

technical field [0001] The invention relates to the field of optical filter preparation, in particular to a method for preparing a blue glass infrared cut-off filter. Background technique [0002] Infrared cut-off filter is an optical filter that allows visible light to pass through and cuts off infrared light. Its main application fields are lens systems such as mobile phone cameras, computer cameras, and car cameras. It can also be used in digital cameras, digital video cameras and other fields and monitoring Most of the fields involving CCD / CMOS imaging systems, such as systems. The function of the infrared cut filter is to prevent false colors and ripples caused by the pixel spacing of the image sensor, and to improve the influence of infrared rays on imaging. Traditional infrared cut filters are mostly made of float glass or blue plate glass. At present, due to the good imaging and anti-glare characteristics of blue glass materials, more and more camera products choos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20G02B1/11C03C17/22C03C17/245G02B1/10
Inventor 郭咏刘涛
Owner SHENZHEN O FILM TECH
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