Product Knowledge
Convex lens in general life
1.1 human eyes with convex lens Schematic diagram of human eye imaging is the image formed by human eyes a real image or an imaginary
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Product Knowledge
What effect does a convex lens have on light?
I believe that students have encountered such problems as “whether reading glasses are convex lens or concave lens” when doing questions. Convex lens is the
Product Knowledge
Difference between flat convex lens and biconvex lens
A biconvex lens. Light incident on both sides has the same refractive index. The focal length is the same. The light incident on both sides
Technical Knowledge
Optical reflection film
Optical reflective films can generally be divided into two categories: metal reflective films and all dielectric reflective films. In addition, there is a metal dielectric
Technical Knowledge
optical Antireflection film
Antireflection film, also known as antireflection film, its main function is to reduce or eliminate the reflected light on the optical surface such as lens,
Technical Knowledge
Coating technology of optical lenses
No matter the glasses made of inorganic or organic materials, in daily use, the friction with dust or gravel (silicon oxide) will cause lens wear
Product Knowledge
Spherical lens and aspheric lens
The traditional spherical lens is not only thick, but also distorted and deformed when looking at things through the periphery of the lens, which is
Material Knowledge
Lens material classification
Glass lens includes optical glass lens and high refractive index lens (commonly known as ultra-thin film). It has high hardness and good wear resistance. Generally,
Technical Knowledge
Common technical indexes of optical glass
Glass can change the propagation direction of light and the relative spectral distribution of ultraviolet, visible or infrared light. Optical glass can be used to
Technical Knowledge
Optical coating material
Common optical coating materials are as follows: 1. Magnesium fluoride Material features: colorless tetragonal powder with high purity. Using it to prepare optical coating can