发明名称 |
Polarized light extraction optical element |
摘要 |
A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one of the right and left circularly polarized light components is reflected with a reflectivity smaller than the maximum reflectivity.
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申请公布号 |
US2002113923(A1) |
申请公布日期 |
2002.08.22 |
申请号 |
US20020115036 |
申请日期 |
2002.04.04 |
申请人 |
KASHIMA KEIJI;TOYOTA YUKIHIRO;UMEYA MASANORI;GOTO MARIKO |
发明人 |
KASHIMA KEIJI;TOYOTA YUKIHIRO;UMEYA MASANORI;GOTO MARIKO |
分类号 |
G02B5/30;G02F1/1335;(IPC1-7):G02F1/133 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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