Liquid crystal-based optical filtering light path with dynamically adjustable band elimination wavelength and method
The invention discloses a liquid crystal-based optical filtering light path with dynamically adjustable band elimination wavelength. The light path is composed of a light splitting system, a beam combining system and a filtering assembly. The middle position of the light splitting system and the bea...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.04.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a liquid crystal-based optical filtering light path with dynamically adjustable band elimination wavelength. The light path is composed of a light splitting system, a beam combining system and a filtering assembly. The middle position of the light splitting system and the beam combining system is a focal plane position, the light splitting system and the beam combining system are symmetrical relative to the focal plane, the filtering assembly comprises liquid crystal and a liquid crystal control unit, and the liquid crystal is arranged on the focal plane; the light splitting system is used for dispersing incident light to form a dispersion spectrum and focusing the dispersion spectrum on the liquid crystal; the transmittance change of each pixel of the liquid crystal is controlled by a liquid crystal control unit, so that bandstop filtering with dynamically adjustable optical wavelength is carried out on spectrums at different positions; the beam combining system is used for diverging |
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Bibliography: | Application Number: CN202011636211 |