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Optical glass, optical preform, optical element and optical instrument

A technology of optical glass and optical components, applied in optical components, instruments, optics, etc., can solve problems affecting the application of optical glass

Pending Publication Date: 2019-01-18
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 preform, optical element and optical instrument
  • Optical glass, optical preform, optical element and optical instrument
  • Optical glass, optical preform, optical element and optical instrument

Examples

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Embodiment Construction

[0039] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. In this specification, unless otherwise specified, the content of each component (ingredient) is expressed in percent 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 materials of the optical glass composition of the present invention are decomposed and converted into oxides when melted, the total amount of the oxides is taken as 100%.

[0040] Unless otherwise indicated in a specific instance, the numerical ranges set forth herein include the upper and lower values, "above" and "below" include the endpoints, all integers and fractions within the range, and are not intended to be limiting when...

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Abstract

The invention discloses an optical glass. The contents of the components in the optical glass are represented in percentage by weight, the optical glass consists of 15 to 35 percent of P2O5, 1 to 18 percent of Na2O plus K2O, 10 to 25 percent of TiO2 and 38 to 52 percent of Nb2O5, and moreover, the range of Nb2O5 / (K2O plus Na2O) is between 2.0 and 10.0. The invention further discloses an optical perform made of the optical glass, an optical element made of the optical glass or the optical perform and an optical instrument comprising the optical glass or the optical element. While having high refractivity and high chromatic dispersion, the optical glass disclosed by the invention further has excellent chemical stability and air bubble degree.

Description

technical field [0001] The present invention relates to glass, and more particularly, the present invention relates to optical glass and optical preforms, optical elements and optical instruments 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] Optical glass may be eroded by the environment and various chemical reagents and liquid medicines during use. Therefore, the resistance of optic...

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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