Optical glass, optical prefabricated member, optical element and optical instrument

A technology of optical glass and optical components, applied in the direction of optical components, optics, instruments, etc., can solve the problems of unusable optical components, cost and energy waste, glass waste, etc.

Active Publication Date: 2019-04-16
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the crystallization resistance of optical glass is not good, it is easy to cause crystals to precipitate during the production process, resulting in the waste of glas...

Method used

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  • Optical glass, optical prefabricated member, optical element and optical instrument
  • Optical glass, optical prefabricated member, optical element and optical instrument
  • Optical glass, optical prefabricated member, optical element and optical instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0124]

[0125] In order to further clearly illustrate and illustrate the technical solution of the present invention, the following non-limiting examples are provided.

[0126] 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.

[0127] Table 1

[0128]

[0129]

[0130] Table 2

[0131]

[0132]

[0133]

[0134] 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 optical glass. Cation components of the optical glass include, by mole, 35-55% of Si<4+>, 1-15% of Ti<4+>, 10-30% of Zn<2+>, 0-10% of Zr<4+>, 1-15% of Ba<2+>, 8-22% of Na<+> and0-12% of K<+>, wherein the ratio of the Ti<4+> to the Si<4+> is 0.02-0.4. Through the reasonable component design, while the desired refractive index, Abbe number and other optical properties are obtained, the optical glass has excellent anti-crystallization performance.

Description

technical field [0001] The invention relates to an optical glass, in particular to an optical glass with a refractive index of 1.63-1.72 and an Abbe number of 35-41, and an optical preform, an optical element and an optical instrument made of the optical glass. Background technique [0002] With the continuous integration of optics, 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 digitalization, 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] During the production or secondary molding process of optical glass, the anti-devitrification performance...

Claims

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Application Information

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IPC IPC(8): C03C3/062C03C3/078C03C3/085C03C3/089C03C3/095C03C3/097G02B1/00
CPCC03C3/062C03C3/078C03C3/085C03C3/089C03C3/095C03C3/097G02B1/00
Inventor 袁伟赖德光
Owner CDGM OPTICAL GLASS
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