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A rhombic prism is used to display a beam laterally without changing it is direction. It can be coated to transmit part of the beam and produces two parallel and displaced emerging beams. It also can be coated to produce a polarizing beam separator. Dimension and coating are available by custom orders.
Penta prism has five sides, four of them polished. Two reflective sides are coated with metal or dielectric HR coating and these two sides can be blackened.
An optical window is applied to isolate different physical environments while allowing light to pass.
A wedge is an optical element having plane-inclined surfaces. Usually the faces are inclined toward one another at very small angles. The wedge diverts light toward its thicker portion.
A mirror is an optical element that works by using the law of reflection. Reflectors can be divided into plane reflector, spherical reflector and aspheric reflector according to their shapes.
Cylindrical lens is used to correct astigmatism in the optical system, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.
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