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1. 发明公开

EP2434488A3 Compound quarter-wave retarder for optical disc pickup heads 审中-公开
标题翻译：复合Viertelwellenretarder一个读头光盘
公开(公告)号：EP2434488A3
公开(公告)日：2012-05-30
申请号：EP11194865.9
申请日：2005-12-16
申请人： RealD Inc.
发明人： Sharp, Gary
IPC分类号： G11B7/135 , G02B5/30 , G11B7/22
CPC分类号： G11B7/1275 , G02B5/3083 , G11B7/1365 , G11B7/22 , G11B2007/0006
摘要： An optical disc subsystem, optically coupled to a light source operable to generate light of at least two wavelengths, comprising: a polarizing beam splitter (PBS) operable to receive the light from the light source and linearly polarize the light on a forward pass, wherein the PBS is further operable to receive linearly polarized light on a reverse pass, wherein the PBS further comprises a boundary operable to reflect at least a portion of the reverse pass light; and a polarizing device operable to transform, on the forward pass, linearly polarized light from the PBS to circularly polarized light, the polarizing device being further operable to transform, on the reverse pass, circularly polarized light to linearly polarized light, wherein the light on the reverse pass is substantially orthogonal to the light on the forward pass.

2. 发明公开

EP2434488A2 Compound quarter-wave retarder for optical disc pickup heads 审中-公开
标题翻译： Verbund-Viertelwellenretarderfüreinen Lesekopffüroptische Platten
公开(公告)号：EP2434488A2
公开(公告)日：2012-03-28
申请号：EP11194865.9
申请日：2005-12-16
申请人： RealD Inc.
发明人： Sharp, Gary
IPC分类号： G11B7/135 , G02B5/30 , G11B7/22
CPC分类号： G11B7/1275 , G02B5/3083 , G11B7/1365 , G11B7/22 , G11B2007/0006
摘要： An optical disc subsystem, optically coupled to a light source operable to generate light of at least two wavelengths, comprising: a polarizing beam splitter (PBS) operable to receive the light from the light source and linearly polarize the light on a forward pass, wherein the PBS is further operable to receive linearly polarized light on a reverse pass, wherein the PBS further comprises a boundary operable to reflect at least a portion of the reverse pass light; and a polarizing device operable to transform, on the forward pass, linearly polarized light from the PBS to circularly polarized light, the polarizing device being further operable to transform, on the reverse pass, circularly polarized light to linearly polarized light, wherein the light on the reverse pass is substantially orthogonal to the light on the forward pass.
摘要翻译：一种光学子系统，光学耦合到可操作以产生至少两个波长的光的光源，包括：偏振分束器（PBS），其可操作以接收来自所述光源的光并且在正向通过时使所述光线性偏振，其中 PBS进一步可操作以在反向通路中接收线性偏振光，其中PBS还包括可操作以反射反向光的至少一部分的边界; 以及可操作以在正向通过时将来自PBS的线偏振光变换为圆偏振光的偏振装置，所述偏振装置还可操作以在反向通过下将圆偏振光转换为线偏振光，其中，所述光反向通道基本上正交于正向通过的光。

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