发明名称 |
Projection-type display device and software program |
摘要 |
A projection surface on which a predetermined projection image is projected is provided; a writing surface on which an image can be drawn directly in a superimposing manner with a projection image displayed on the projection surface is provided; and a photography part photographing an image drawn on the writing surface by means of an image-pickup part comprising two-dimensionally-disposed pixels is provided.
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申请公布号 |
US7889153(B2) |
申请公布日期 |
2011.02.15 |
申请号 |
US20060520703 |
申请日期 |
2006.09.14 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
KITAGUCHI TAKASHI;KITAZAWA TOMOFUMI;SASAKI SABURO |
分类号 |
B43L1/04;G09G5/00;B43L1/10;G03B21/10;G03B21/26;G06F1/16;G06F3/033;G06F3/042;H04N1/00;H04N1/195;H04N5/74 |
主分类号 |
B43L1/04 |
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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