发明名称 |
PROJECTION TYPE DISPLAY DEVICE |
摘要 |
A projection type display device includes: a light emitting unit that includes at least one light source for emitting a coherent light. An image light generating unit modulates the light emitted by the light emitting unit to generate an image light. A projecting unit projects the image light. A phase modulating unit is arranged either between the light emitting unit and the image light generating unit or between the image light generating unit and the projecting unit and has an area where at least one of a retardation value and an azimuth direction of a slow axis is distributed respectively in different directions or values in a plane orthogonal to an optical axis.
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申请公布号 |
US2009257028(A1) |
申请公布日期 |
2009.10.15 |
申请号 |
US20090424971 |
申请日期 |
2009.04.16 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
OSAWA MITSUO;KAWAMORI ATSUSHI |
分类号 |
G03B21/14;G02B27/48;G02F1/01;G02F1/137 |
主分类号 |
G03B21/14 |
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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