发明名称 |
PROJECTION DEVICE FOR PROJECTING AN IMAGE ONTO A PROJECTION SURFACE, AND A PROJECTION UNIT FOR COUPLING TO A PROJECTOR |
摘要 |
The invention relates to a projection device for projecting an image onto a projection surface. Said device comprises a light source (26); a film gate (2) for holding a positive image recorded on a carrier medium, said gate being arranged downstream from the light source; and a projection lens (3) for projecting an illuminated positive image. The inventive device also comprises a control unit (25); a light modulator (10) which can be controlled by said unit and which is used to produce an additional image based on predetermined image data; an optical device (11) for projecting the additional image onto the projection surface (34), said optical device being arranged downstream from the light modulator; and a beam splitter (6) which is arranged between the light source (26) and the film gate (2). Said beam splitter splits the light from the light source (26) into a first partial beam directed onto the film gate (2) in order to illuminate the positive image, and a second partial beam by means of which the light modulator (10) can be operated. A projection device is thus implemented which can project additional images, e.g. sub-titles, as well as the illuminated positive image. |
申请公布号 |
WO0217018(A2) |
申请公布日期 |
2002.02.28 |
申请号 |
WO2001EP09814 |
申请日期 |
2001.08.24 |
申请人 |
CARL ZEISS JENA GMBH;MUEHLHOFF, DIRK;KNUPFER, KLAUS;BAUMANN, OLIVER;SPRUCK, BERND |
发明人 |
MUEHLHOFF, DIRK;KNUPFER, KLAUS;BAUMANN, OLIVER;SPRUCK, BERND |
分类号 |
G03B21/20;G03B21/26;G03B21/28 |
主分类号 |
G03B21/20 |
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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