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

An optical glass and glass transition technology, applied in optical components, instruments, optics, etc., can solve problems affecting the application of optical glass, and achieve excellent chemical stability, bubble degree, and high refractive index.

Inactive Publication Date: 2022-08-05
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the existence of defects such as residual bubbles and foreign matter in optical glass will also seriously affect the application of optical glass, especially for optical glass in optoelectronic systems.

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

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Embodiment Construction

[0040] The specific embodiments of the present invention will be further described in detail below with reference to the examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention. In this specification, unless otherwise specified, the content of each component (component) is expressed as a percentage by weight relative to the total amount of glass substances in the composition converted into oxides. Here, the "composition in terms of oxides" means that when the raw material serving as the optical glass component of the present invention is melted and decomposed and converted into oxides, the total amount of the oxides is taken as 100%.

[0041] Unless the specific case indicates otherwise, the numerical ranges recited herein include upper and lower limits, "above" and "below" include the endpoints, all integers and fractions within the range and not limited to the defined range. specific values ​​lis...

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Abstract

The invention discloses optical glass, which comprises the following components in percentage by weight: 15 to 35 percent of P2O5, 1 to 18 percent of Na2O + K2O, 10 to 25 percent of TiO2 and 38 to 52 percent of Nb2O5, and the range of Nb2O5 / (K2O + Na2O) is 2.87 to 10.0. The invention also discloses an optical prefabricated member made of the optical glass, an optical element made of the optical glass or the optical prefabricated member, and an optical instrument comprising the optical glass or the optical element. The optical glass provided by the invention has high refractive index and high dispersion, and also has excellent chemical stability and bubble degree.

Description

[0001] This application is a divisional application for the invention patent application with the application number of 201811472314.6 and the application date of December 03, 2018, and the title is "optical glass, optical preform, optical element and optical instrument". technical field [0002] The present invention relates to glass, and more particularly to optical glass and optical preforms, optical elements and optical instruments made from the optical glass. Background technique [0003] 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 is advancing 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 placed on the performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/062G02B1/00
CPCG02B1/00C03C3/062
Inventor 孙伟
Owner CDGM OPTICAL GLASS
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