Optical glass for medium-numerical-aperture optical fibers and application of optical glass

A numerical aperture, optical glass technology, applied in glass manufacturing equipment, manufacturing tools, etc., to achieve the effect of reducing interface loss, good composition stability, and improving total reflectance

Inactive Publication Date: 2019-08-23
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is currently no public report of an optical glass material that can meet the above application requirements

Method used

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  • Optical glass for medium-numerical-aperture optical fibers and application of optical glass
  • Optical glass for medium-numerical-aperture optical fibers and application of optical glass

Examples

Experimental program
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Embodiment Construction

[0027] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0028] The materials and reagents used in the following examples can all be obtained from commercial sources.

[0029] Table 1 shows the formula composition and physical and chemical properties of the optical glass for medium numerical aperture optical fiber in Examples 1-8 of the present invention.

[0030] Among them, the refractive index is tested according to GB / T 7962.1-2010; the expansion coefficient, transition temperature, softening temperature, and softening point are tested according to GB / T 7962.16-2010; the transmittance is tested according to GB / T7962.12-2010; the moisture resistance stability is tested according...

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Abstract

The invention provides optical glass for medium-numerical-aperture optical fibers. The optical glass comprises the following raw materials in percentage by weight: 55-65% of silicon dioxide, 8-15% ofboron trioxide, 0-3% of aluminum oxide, 8-15% of alkali metal oxide, 15-25% of alkaline earth metal oxide and 0-2% of calcium fluoride, wherein the weight ratio of the boron trioxide to the alkali metal oxide is 1:3-1:1. The invention further provides a preparation method and application of the optical glass. According to the optical glass prepared by the method, the refractive index of the optical glass is 1.53-1.56, and the wavelength transmittance of 300-1100 nm is more than or equal to 88%. Meanwhile, glass founding formation is easy, internal defects such as bubbles, stones, stripes and the like are avoided, anti-crystallization performance, chemical stability and component stability of glass are good, and thermal performance meets preparation requirements of medium-numerical-apertureoptical fibers and optical fiber imaging elements.

Description

technical field [0001] The invention relates to the technical field of optical glass, in particular to an optical glass for medium numerical aperture optical fiber and its preparation method and application. Background technique [0002] Optical glass has a high degree of transparency, high uniformity in chemistry and physics (structure and performance), and has specific and precise optical constants. It is used in the manufacture of lenses, prisms, mirrors, windows, Key materials such as optical fibers play an important role in the optoelectronic technology industry. Among them, optical glass with low refractive index and high transmittance has low refractive index and high spectral transmittance, and is the basic material for medium numerical aperture special optical fiber and optical fiber imaging components. [0003] In the prior art, there are few reports on optical glass materials for medium numerical aperture optical fibers, while conventional optical fiber panels an...

Claims

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Application Information

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IPC IPC(8): C03C13/04C03B37/012C03C1/00
CPCC03B37/01268C03C1/004C03C13/045
Inventor 张洋贾金升刘娟石钰
Owner CHINA BUILDING MATERIALS ACAD
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