Of laser protection lens is the most commonly used optical material, its mature manufacturing technology, complete varieties.
General optical lens can through the wavelength of 0.
In production and life need a lot of laser protection lens, but you can distinguish between optical lenses and normal lenses?
Let's together to look at, can change the direction of propagation of light, and can change the relative spectral distribution of ultraviolet, visible, or infrared light called optical glass lenses.
It is through the refraction and reflection, through the way of transmission light or by absorbing the change of light intensity and spectral distribution of a kind of inorganic glass material.
Has the stable optical properties and high optical homogeneity.
Optical homogeneity refers to various points in the same piece of glass refractive index of inconsistency, is caused by the asymmetry everywhere temperature in annealing furnace.
Light through a glass of non-uniform refractive index, each spectral range causes irregular change, thus affecting the optical system imaging quality.
Common glass: has nothing to do with chemical composition and the curing temperature area, they through supercooled melt method, due to the increase of viscosity with the mechanical properties of solid, and from a liquid to a glassy state transition process is reversible.
Optical glass is made of high purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium oxide in a particular formula mix, high temperature melting in the platinum crucible, stir well with ultrasonic, to bubble;
Then after a long period of time slowly cooling, lest produce internal stress in the glass block.
After cooling the glass block, must go through optical instrument measurement, test of purity, transparency, uniformity, refractive index and dispersion rate is standard.
Qualified glass block after heating forging, MAO embryo into optical lens.
Optical lens and the main difference is that the ordinary lenses: optical lens with high transparency, physical and chemical properties of high uniformity and optical constants that are specific and precise.
The performance is ordinary lens can't replace.
In today's rapid development of science and technology, a new optical material resin lens, regardless of its optical performance, safety performance, to prevent harmful rays eye protection performance is far better than ordinary glasses.