Blue glass filter with high pass rate of visible light

A blue glass and visible light technology, applied in the direction of optical filters, optics, optical components, etc., can solve the problems of easy distortion, large wavelength drift at T50 point, and large imaging difference, so as to improve the service life and increase the average transmission rate effect

Inactive Publication Date: 2017-05-17
HUBEI W OLF PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a blue glass filter with a high visible light transmission rate, to solve the problem that the ordinary filter proposed in the above background technology is

Method used

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  • Blue glass filter with high pass rate of visible light

Examples

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Comparison scheme
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Example Embodiment

[0014] Example 1

[0015] See figure 1 , The present invention provides a technical solution: the blue glass substrate 1 is used as the substrate, the light trimming layer 2 is glued on the top of the glass substrate 1, and the light trimming layer 2 is made of quartz material and made of quartz. The physical polarization characteristics of the light, keep the direct part of the incoming light, reflect off the oblique part, so as to play the role of light trimming, the composite film 3 is formed by vacuum coating (such as evaporation), the composite film 3 includes high refractive index film and low Refractive index film, the high refractive index film and low refractive index film have a total of 42 layers, the high refractive index film and the low refractive index film each have 21 layers, and the high refractive index film and the low refractive index film are arranged in staggered order, with high refractive index The high-efficiency film is made of LaTiO3 material, and the...

Example Embodiment

[0016] Example 2

[0017] In this embodiment, there are two sets of light trimming layers 2, the two sets of light trimming layers 2 are respectively adhered to the top and bottom of the blue glass substrate 1, and the rest are the same as in Embodiment 1.

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Abstract

The invention discloses a blue glass filter with a high pass rate of visible light in the technical field of optical devices, which comprises a blue glass substrate with a light finishing layer adhering to the top. The top of the light finishing layer is provided with a complex film. The top of a high temperature resistant film is provided with a protecting film using the blue glass as the substrate, which can filter infrared effectively in a manner of absorption. The light finishing layer can effectively correct the light and is difficult to generate the problem of imaging interference. A high refractive index film and a low refractive index film which are respectively prepared from LaTiO3 material and magnesium fluoride, aluminum fluoride or sodium fluoride materials, improve the mean transmissivity of light and the stray light can be effectively cut from infrared and ultraviolet. The high temperature resistant film enables the blue glass filter with high pass rate of visible light to be applied to the field with higher temperature. The setting of the protecting film enables the filter to have the advantages of scratch resistance, yellow resistance and super toughness, and the service life of the filter is improved.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to a blue glass filter with high visible light transmission rate. Background technique [0002] The filter is made of plastic or glass with special dyes added, the red filter can only let red light pass through, and so on. The transmittance of the glass sheet is almost the same as that of air, and all colored light can pass through, so it is transparent, but after being dyed with a dye, the molecular structure changes, and the refractive index also changes, which changes the passage of some colored light. For example, a beam of white light passes through a blue filter, and a beam of blue light is emitted, while green light and red light are very few, and most of them are absorbed by the filter. Optical filter In mobile phones, cameras and other cameras, the blue glass filter located in front of the image sensor CCD or CMOS can effectively filter out infrared rays and pass t...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02B5/22G02B1/10G02B1/14G02B1/115
CPCG02B5/20G02B1/10G02B1/115G02B1/14G02B5/208G02B5/226
Inventor 奂微微黄兴桥
Owner HUBEI W OLF PHOTOELECTRIC TECH CO LTD
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