发明授权
- 专利标题: Polarizer devices and methods for making the same
- 专利标题(中): 偏振器装置和制作相同的方法
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申请号: US807020申请日: 1997-02-26
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公开(公告)号: US6072629A公开(公告)日: 2000-06-06
- 发明人: Bunsen Fan , Sadeg Mustafa Faris , John Charles Kralik , Hemasiri Vithana
- 申请人: Bunsen Fan , Sadeg Mustafa Faris , John Charles Kralik , Hemasiri Vithana
- 申请人地址: NY Hawthorne
- 专利权人: Reveo, Inc.
- 当前专利权人: Reveo, Inc.
- 当前专利权人地址: NY Hawthorne
- 主分类号: G02B5/30
- IPC分类号: G02B5/30
摘要:
A light polarizer includes a plurality of discrete layers of birefringent film disposed in superposed relation on a transparent substrate. The planar components of the optic axes of each successive one of the discrete layers are angularly offset relative each preceding one of the discrete layers by a predetermined angle in one or either a positive or negative direction to provide the light polarizer with selectivity for either right-handed circularly polarized (RHCP) or left-handed circularly polarized (LHCP) incident light. In another aspect of the invention, the layers are of quarter-wave thickness having planar components orthogonally offset to provide selectivity for either right or left linearly polarized light. In a still further aspect of the invention, an optically isotropic layer of quarter-wave thickness is disposed between adjacent birefringent quarter-wave plates.
公开/授权文献
- US5131328A Safety and arming system for tube launched projectile 公开/授权日:1992-07-21
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