Zoom polarization conversion system

The invention provides a zoom polarization conversion system, which determines the diameter of a collimated beam according to the aperture angle of incident light and the focal length of a first lens group, and obtains the distance between two sub-lens groups in a zoom lens group according to the ap...

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Bibliographic Details
Main Author YANG FENGLEI
Format Patent
LanguageChinese
English
Published 04.04.2023
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:The invention provides a zoom polarization conversion system, which determines the diameter of a collimated beam according to the aperture angle of incident light and the focal length of a first lens group, and obtains the distance between two sub-lens groups in a zoom lens group according to the aperture angle of emergent light and the diameter of the collimated beam. After the collimated light beam is sequentially reflected by a plurality of polarization beam-splitting slopes in the polarization conversion module, the half-wave plate converts first or second polarized light in the collimated light beam into second or first polarized light and then emits the second or first polarized light to the variable-focus lens group. After the variable-focus lens group transmits emergent light, the emergent light is homogenized by the light integrator, and first or second polarized light meeting the size of the aperture angle of the emergent light is transmitted at the emergent end of the light integrator. The polariza
Bibliography:Application Number: CN202110960633