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Optical glass

A technology of optical glass and weight percentage, applied in the field of optical glass, can solve the problems of shortening the service life of optical components, accelerating glass corrosion, etc., and achieves the effect of excellent chemical stability and suitable wear degree

Active Publication Date: 2022-04-15
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, long-term exposure of optical components to harsh environments such as moisture, acid, and alkali will accelerate the corrosion of the glass and shorten the service life of the optical components, so it is expected that the glass has better chemical stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0095]

[0096] In order to further clearly illustrate and illustrate the technical solution of the present invention, the following non-limiting examples are provided.

[0097] In this example, the optical glass having the composition shown in Table 1 to Table 2 was obtained by using the above-mentioned manufacturing method of optical glass. In addition, the properties of each glass were measured by the test method described in the present invention, and the measurement results are shown in Tables 1 to 2.

[0098] Table 1

[0099]

[0100]

[0101] Table 2

[0102]

[0103]

[0104]

[0105] The glasses obtained in Examples 1 to 20 of the optical glass are used, for example, by means of grinding, or hot press molding, precision stamping, and other compression molding methods to produce concave meniscus lenses, convex meniscus lenses, and double-convex lenses. , biconcave lens, plano-convex lens, plano-concave lens and other prefabricated parts of various len...

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PUM

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Abstract

The invention provides an optical glass, the composition of which is represented by weight percentage, containing: SiO 2 : 35-50%, B 2 o 3 : 0-10%, BaO: 35-50%, Al 2 o 3 : 0~10%, TiO 2 : 0~8%, ZnO: 2~15%, of which B 2 o 3 / (TiO 2 +Al 2 o 3 +ZnO) is 0.05 to 2.0. Through reasonable component design, the optical glass obtained by the present invention has excellent chemical stability and suitable wear degree while having expected optical properties.

Description

technical field [0001] The invention relates to an optical glass, in particular to an optical glass with a refractive index of 1.56-1.64 and an Abbe number of 52-60. Background technique [0002] With the continuous integration of optics and electronic information science and new material science, the application of optical glass as the basic material of optoelectronics in the fields of optical transmission, optical storage and optoelectronic display has advanced by leaps and bounds. In recent years, optical components and optical instruments have developed rapidly in terms of digitization, integration and high precision, and higher requirements have been put forward for the performance of optical glass used in optical components of optical instruments and equipment. [0003] In the prior art, glass preforms can be made by mechanical processing such as grinding and grinding of optical glass, or preforms for compression molding can be made from optical glass, and the preforms...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/095C03C3/093C03C3/068C03C3/066
CPCC03C3/095C03C3/093C03C3/068C03C3/066
Inventor 孙伟
Owner CDGM OPTICAL GLASS