Dense flint glass, preparation method and application thereof

Abstract

Relating to the technical field of glass products, the invention provides a dense flint glass, a preparation method and application thereof. The dense flint glass is mainly prepared from the followingraw materials by mass: 5-9 parts of NaPO3 and / or Na2CO3; 1-8 parts of Ba(PO3)2 and / or Ba2CO3; 10-18.5 parts of TiO2; 42-55 parts of Nb2O5; 2.2-3.8 parts of KPO3 and / or K2CO3; 0.5-1.5 parts of SiO2; and 1-7 parts of H3BO3. The optical dense flint glass provided by the invention has excellent environmental protection performance, a refractive index (nd) of 1.92286-1.92310, and an Abbe number (Vd) of 18.00-19.00. In actual production, the optical constants are stable, the consistency is good, and the bubble and stripe grades are excellent; the production process is simple, the yield is high, andthe cost is low, therefore the dense flint glass can well meet the market demand of optical glass.

Description

technical field [0001] The invention relates to the technical field of glass products, in particular to heavy flint glass and its preparation method and application. Background technique [0002] Optical glass is mainly used as lenses and prisms in optical systems for image transmission and is the core part of optical instruments. In recent years, it has been widely used in camera lenses and security systems. [0003] With the increasing emphasis on environmental protection, more and more attention has been paid to the impact of glass production, processing and use on the environment. China and other countries have also issued corresponding policies, calling for vigorous development of PbO and As-free glass. 2 o 3 , CdO green glass. [0004] Optical glass needs to have high refractive index and low Abbe number, so that in the design of special optical system, the purpose of compensating and correcting chromatic aberration can be realized; in addition, with the development...

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Problems solved by technology

[0004] Optical glass needs to have high refractive index and low Abbe number, so that in the design of special optical system, the purpose of compensating and correcting chromatic aberration can be realized; in addition, with the development of society, environmentally friendly optical glass has become a trend, and the use of environmentally friendly Type raw materials replace As as a clarifying agent, it is more difficult to eliminate bubbles, streaks, etc. in glass production, and it is difficult to form a high-quality, stable mass production scale

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