发明名称 |
Polarizer devices and methods for making the same |
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.
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申请公布号 |
US6072629(A) |
申请公布日期 |
2000.06.06 |
申请号 |
US19970807020 |
申请日期 |
1997.02.26 |
申请人 |
REVEO, INC. |
发明人 |
FAN, BUNSEN;FARIS, SADEG MUSTAFA;KRALIK, JOHN CHARLES;VITHANA, HEMASIRI |
分类号 |
G02B5/30;(IPC1-7):G02B5/30 |
主分类号 |
G02B5/30 |
代理机构 |
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主权项 |
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地址 |
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