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Design method of blue glass filter

A design method and technology of blue glass, applied in the direction of filters, optics and optical components for photographic purposes, can solve the problems of short life, unstable structure of infrared filters, easy falling off of coatings, etc., to prevent the film layer The effect of falling off, improving firmness and structural stability

Inactive Publication Date: 2017-06-13
东莞市微科光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the material of the blue glass itself and the coating process, the coating on the blue glass is prone to fall off, which makes the formed infrared filter structure unstable and short in life.

Method used

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  • Design method of blue glass filter

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Embodiment Construction

[0010] In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] refer to figure 1 .

[0012] The invention discloses a design method of a blue glass filter, which comprises the following steps: the material of the substrate is blue glass, contact layers are arranged on the upper and lower surfaces of the substrate, and the material of the contact layer is lanthanum titanate (H 14 La 2 o 7 Ti 2 ), a composite layer is provided on the upper surface of the upper contact layer and the lower surface of the lower contact layer, and the composite layer is formed by alternately stacking high refractive index materials and low refractive index materials. Preferably, the high refractive index material is TiO 2 、Ti 3 o 5 、 Ta 2 o 5 or Nb 2 o 5 One or more of ...

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Abstract

The invention provides a design method of a blue glass filter and relates to the field of thin film preparation. The method comprises the following steps of designing a material of a substrate to be blue glass; arranging contact layers on the upper surface and the lower surface of the substrate; setting the material of the contact layers to be lanthanum titanate; and arranging composite layers on the upper surface of an upper contact layer and the lower surface of a lower contact layer, wherein each composite layer is formed by alternately stacking a high refractive index material and a low refractive index material. According to the design method, the firm degree of a film during blue glass coating can be effectively improved, the film is prevented from falling off due to the material of the blue glass filter and the formed blue glass filter is more stable in structure.

Description

technical field [0001] The invention relates to the field of film preparation, and specifically discloses a design method of a blue glass filter. Background technique [0002] With the development of science and technology, people have higher and higher requirements for shooting quality. One way to improve shooting quality is to perform infrared filtering. Adding an infrared cut filter between the lens and CCD or CMOS image sensor can effectively suppress The passage of light waves with a higher spatial frequency than the CCD or CMOS image sensor can effectively prevent ripple disturbance, improve the effective resolution and color reproduction of color CCD and CMOS image sensors, and make the image clearer and more stable. [0003] In the prior art, the infrared cut-off filter is generally formed by stacking multi-layer films of high and low refractive index materials on the surface of transparent optical glass, and the multi-beam interference in physical optics is used to ...

Claims

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Application Information

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IPC IPC(8): G02B5/28G03B11/00
CPCG03B11/00G02B5/282G02B5/285
Inventor 吴志涵汪金波
Owner 东莞市微科光电科技有限公司