- 专利标题: Polarization scene projector
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申请号: US16268980申请日: 2019-02-06
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公开(公告)号: US10656497B1公开(公告)日: 2020-05-19
- 发明人: Joshua Lentz
- 申请人: Government of the United States, as represented by the Secretary of the Air Force
- 申请人地址: US OH Wright-Patterson AFB
- 专利权人: The Government of the United States as Represented by the Secretary of the Air Force
- 当前专利权人: The Government of the United States as Represented by the Secretary of the Air Force
- 当前专利权人地址: US OH Wright-Patterson AFB
- 代理机构: AFMCLO/JAZ
- 主分类号: G02F1/29
- IPC分类号: G02F1/29 ; G03B21/20
摘要:
A scene projector includes a first cycloidal diffractive waveplate (CDW) having first pixels that are switchable such that light from a zero order passes through along an optical axis and light from plus and minus first orders is deflected away from the optical axis, and a second CDW downstream of the first CDW that includes second pixels positioned to receive diffracted orders of light from the first CDW, where there are at least three second pixels for one first pixel corresponding to each diffracted order received from the first pixel. The scene projector may further include a first reflective surface and a second reflective surface each positioned to receive diffracted orders of light from the second CDW, where each reflective surface directs light toward a grating structure. The scene projector may independently control a degree of polarization, angle of linear polarization, and intensity for light output therefrom.
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