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Wave Plate/ Wavelength Plate

Wave plate is an optical device that can make mutually perpendicular two light when vibration to generate additional optical path difference(or phase difference).

Wave plate also called wave delay plate, it is a kind of optical component which contains two main optical axis, including a fast optical axis and a slow axis. Through the two optical axis, the incident polarized light will be turned into two perpendicular polarization light, and the two ones will be reassembled into a special single polarization light. Delay plate can realize full wave delay, half wave delay, 1/4 wave delay and 1/8 wave delay.
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