Classification of optical glass

1, from the optical nature of points. Optical glass from the concept can be divided into colorless optical glass, colored optical glass, radiation-resistant optical glass, radiation glass and optical quartz glass. Optical glass has a high degree of transparency, chemical and physical high degree of uniformity, with specific and accurate optical constants.

Their characteristics are:

Colorless optical glass. The optical constant has a specific requirement, with a high visible area, no choice to absorb coloring and so on. Used as a telescope, microscope, camera and other lenses, prisms, mirrors and so on.

Anti - radiation optical glass. High energy radiation has a greater absorption capacity, mainly for the nuclear industry, medical fields as a mask and peep window material.

Radiation - resistant optical glass. Under certain radii, the visible area changes less, for the manufacture of high-energy radiation under the optical instruments and peep window.

Colored optical glass. Also known as filter glass. On the UV, visible, infrared wavelengths have specific absorption and permeability through the performance, mainly for the manufacture of filters.

UV and IR optical glass. In the ultraviolet or infrared band has a specific optical constant and high transmittance, used as UV, infrared optical instruments or as a window material.

Optical quartz glass. With silica as the main component, with high temperature, low expansion coefficient, high mechanical strength, good chemical properties, for the manufacture of various bands through the special requirements of the prism, lens, window and mirror. 

2, according to the dispersion is divided into two categories. Small dispersion for the crown (K), the larger dispersion for the flint (F). Features are:

Optical glass is used to make optical instruments or mechanical systems of lenses, prisms, mirrors, windows and other glass materials. Including colorless optical glass (usually referred to as optical glass), colored optical glass, radiation-resistant optical glass, radiation glass and optical quartz glass. Optical glass has a high degree of transparency, chemical and physical (structure and performance) on the high degree of uniformity, with specific and accurate optical constants. It can be divided into silicate, borate, phosphate, fluoride and sulfur compounds series.

Cold processing technology:

A chemical vapor-phase heat treatment means and monolithic soda lime silica glass to change its original molecular structure without affecting the original color and light transmittance of the glass, to achieve super-hardness standards, under the impact of high temperature flame to meet the fire requirements of the super Hardness fireproof glass and its manufacturing method, special equipment. (7% to 10%), gaseous copper chloride (8% to 12%), nitrogen (2) % ~ 6%). It contains the following process: the use of soda-lime glass as the substrate for cutting, fine grinding edge of the cold → → cold-processed soda-lime glass glass chemical vapor heat treatment → sodium silicate glass surface plating protective film treatment → The soda lime silica glass surface for special physical steel treatment. By the cylinder and its associated with the cylinder head, and the cylinder head connected to the reactor to form a dedicated thermal decomposition gasification equipment.