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Pentagonal prism is one of the beam steering devices with fixed angle (90 °). It has two purposes: first, the outgoing light turns the incident

Two reflecting surfaces perpendicular to each other are called ridge surface, and the prism with ridge surface is called ridge prism. The ridge prism is

Flat concave cylindrical lens is an optical product, which forms a divergent linear virtual image, which is used to control the size of only one

Introduction to flat convex cylindrical mirror The plane convex cylindrical lens forms a linear image, which is used to control the size of only one

Introduction of cylindrical lens Cylindrical mirror is an aspherical lens, which can effectively reduce spherical aberration and chromatic aberration. It is divided into flat convex

Ball lens is an important optical element, which is mainly made of optical glass and other materials. It is used for the coupling between optical

Ordinary achromatic lens refers to a lens group that corrects the color difference of light of three wavelengths (blue light, green light and red light).

A lens is made by grinding a transparent material such as glass into a circular sheet so that both surfaces are curved or one side

One side of the meniscus lens is convex and one side is concave. It can be a convergent lens or a divergent lens, which is

The double concave lens is similar to the flat concave lens. The focal length is negative, but the light incident in parallel diverges outward. The