公开(公告)号：US06252710B1

公开(公告)日：2001-06-26

申请号：US09437531

申请日：1999-11-10

申请人： Bunsen Fan ,  Sadeg Mustafa Faris ,  John Charles Kralik ,  Hemasiri Vithana

发明人： Bunsen Fan ,  Sadeg Mustafa Faris ,  John Charles Kralik ,  Hemasiri Vithana

IPC分类号： G02B530

CPC分类号： G02B5/3083

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 of 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.

摘要翻译： 光偏振器包括在透明基板上以重叠关系设置的多个离散的双折射膜层。 每个连续的一个离散层的光轴的平面分量相对于每个离散层之前的一个离散层以正或负方向中的一个成角度地偏移预定角度，以提供光偏振器， （RHCP）或左旋圆极化（LHCP）入射光。 在本发明的另一方面，这些层是四分之一波长的厚度，具有正交偏移的平面分量，以为右或左线偏振光提供选择性。 在本发明的又一方面中，在相邻的双折射四分之一波片之间设置四分之一波长厚度的光学各向同性层。

公开(公告)号：US6072629A

公开(公告)日：2000-06-06

申请号：US807020

申请日：1997-02-26

申请人： Bunsen Fan ,  Sadeg Mustafa Faris ,  John Charles Kralik ,  Hemasiri Vithana

发明人： Bunsen Fan ,  Sadeg Mustafa Faris ,  John Charles Kralik ,  Hemasiri Vithana

IPC分类号： G02B5/30

CPC分类号： G02B5/3083

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.

摘要翻译： 光偏振器包括在透明基板上以重叠关系设置的多个离散的双折射膜层。 每个连续的一个离散层的光轴的平面分量相对于离散层中的每一个之前的一个离散层以一个或任一个正或负方向成角度地偏移预定的角度，以提供光偏振器， （RHCP）或左旋圆极化（LHCP）入射光。 在本发明的另一方面，这些层是四分之一波长的厚度，具有正交偏移的平面分量，以为右或左线偏振光提供选择性。 在本发明的又一方面中，在相邻的双折射四分之一波片之间设置四分之一波长厚度的光学各向同性层。