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High-refractive-index optical glass and preparation method thereof

A technology of optical glass and high refractive index, which is applied in glass manufacturing equipment, glass molding, manufacturing tools, etc. It can solve the problems of high production cost, strong coloring, and poor stability of optical glass, achieve reduced weight and volume, and improve refraction efficiency, the effect of reducing the number of lenses

Inactive Publication Date: 2021-11-26
XINYI DONGFANG SHUOHUA OPTICAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional glass preparation process generally adds a large amount of expensive Ta2O5 and a certain amount of WO3 to the optical glass formula. Although the refractive index of the optical glass is improved, it also brings high production costs, poor stability, and strong coloring. defect

Method used

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  • High-refractive-index optical glass and preparation method thereof
  • High-refractive-index optical glass and preparation method thereof
  • High-refractive-index optical glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high refractive index optical glass is characterized in that it is prepared from the following raw materials in parts by weight:

[0030]

[0031] The preparation method consists of the following steps:

[0032] S1 Mix the silicon dioxide, niobium pentoxide, titanium dioxide, zinc oxide, zirconium dioxide and calcium hexaboride in the formula amount well, then put them into a quartz container to melt and clarify at 1600°C, and perform a smelting. And continue to feed oxygen to obtain molten glass frit;

[0033] S2 Melt the glass frit at 1600°C for 1 hour. During the glass melting process, stir the frit at a stirring speed of 100rpmrpm, and continuously inject argon gas; after the glass is melted, add the frit After the nano-silver of yttrium oxide, zirconium dioxide, gallium oxide, lanthanum chloride and average particle diameter 200nm, leave standstill for 2 hours;

[0034] S3 pouring the glass frit liquid into a preheated mold and annealing to obtain a finished...

Embodiment 2

[0036] A high refractive index optical glass is prepared from the following raw materials in parts by weight:

[0037]

[0038] The preparation method consists of the following steps:

[0039] S1 Mix the silicon dioxide, niobium pentoxide, titanium dioxide, zinc oxide, zirconium dioxide and calcium hexaboride in the formula amount well, then put them into a quartz container to melt and clarify at 1700°C, and perform a smelting. And continue to feed oxygen to obtain molten glass frit;

[0040] S2 Melt the glass frit at 1700°C for 2 hours. During the glass melting process, stir the frit at a stirring speed of 150rpm, and continuously inject argon gas; after the glass is melted, add the frit After the nano-silver of yttrium oxide, zirconium dioxide, gallium oxide, lanthanum chloride and average particle diameter 250nm, leave standstill for 3 hours;

[0041] S3 pouring the glass frit liquid into a preheated mold and annealing to obtain a finished glass product.

Embodiment 3

[0043] A high refractive index optical glass is characterized in that it is prepared from the following raw materials in parts by weight:

[0044]

[0045] The preparation method consists of the following steps:

[0046] S1 Mix the silicon dioxide, niobium pentoxide, titanium dioxide, zinc oxide, zirconium dioxide and calcium hexaboride in the formula amount well, then put them into a quartz container to melt and clarify at 1700°C, and perform a smelting. And continue to feed oxygen to obtain molten glass frit;

[0047] S2 Melt the glass frit at 1700°C for 2 hours. During the glass melting process, stir the frit at a stirring speed of 150rpm, and continuously inject argon gas; after the glass is melted, add the frit After the nano-silver of yttrium oxide, zirconium dioxide, gallium oxide, lanthanum chloride and average particle diameter 200nm, leave standstill for 3 hours;

[0048] S3 pouring the glass frit liquid into a preheated mold and annealing to obtain a finished g...

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Abstract

The invention belongs to the field of preparation of high-refractive-index optical glass, and particularly discloses high-refractive-index optical glass and a preparation method thereof. The high-refractive-index optical glass is prepared from the following raw materials in parts by weight: 100 parts of silicon dioxide, 20-40 parts of niobium pentoxide, 15-30 parts of titanium dioxide, 15-30 parts of zinc oxide, 10-20 parts of zirconium dioxide, 10-20 parts of calcium hexaboride, 8-16 parts of yttrium oxide, 5-10 parts of zirconium dioxide, 5-10 parts of gallium oxide, 3-7 parts of lanthanum chloride and 2-4 parts of a dispersing agent. The high-refractive-index optical glass disclosed by the invention is high in refractive index, good in chemical temperature property, short in preparation process and suitable for large-scale application.

Description

technical field [0001] The invention belongs to the field of high-refractive-index optical glass preparation, and specifically discloses a high-refractive-index optical glass and a preparation method thereof. Background technique [0002] Optical glass is a glass that can change the direction of light propagation and change the relative spectral distribution of ultraviolet, visible or infrared light. Optical glass in the narrow sense refers to colorless optical glass; optical glass in the broad sense also includes colored optical glass, laser glass, quartz optical glass, anti-radiation glass, ultraviolet and infrared optical glass, fiber optic glass, acousto-optic glass, magneto-optical glass and photochromic Glass. Optical glass can be used to manufacture lenses, prisms, mirrors and windows in optical instruments. Components made of optical glass are key elements in optical instruments. In optical design and optical communication, optical glass with a refractive index be...

Claims

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Application Information

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IPC IPC(8): C03C3/11C03C4/00C03B19/02
CPCC03C3/11C03C4/00C03B19/02
Inventor 蔡轩臣
Owner XINYI DONGFANG SHUOHUA OPTICAL MATERIALS CO LTD
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