发明名称 |
Optical device, image display device and head mounted display |
摘要 |
A hologram optical element is formed on a substrate so as to make an optical device. The hologram optical element is formed in an area smaller than an irradiation area of a beam for reproduction such as image light or object light on the substrate. Supposing that the beam for reproduction is made of a center beam having intensity higher than 50% of center intensity and other peripheral beam, the hologram optical element is formed on the substrate in a size for diffracting only the center beam so that a flare or a ghost can be relieved without using additional optical elements such as a shading plate.
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申请公布号 |
US2007019264(A1) |
申请公布日期 |
2007.01.25 |
申请号 |
US20060492132 |
申请日期 |
2006.07.24 |
申请人 |
KONICA MINOLTA PHOTO IMAGING, INC. |
发明人 |
TANIJIRI YASUSHI;SHIMIZU YOSHIE;NODA TETSUYA;KASAI ICHIRO |
分类号 |
G02B5/32 |
主分类号 |
G02B5/32 |
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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