发明名称 Projecton device for projecting an image onto a projection surface, and a projection unit for coupling to a projector
摘要 A projection arrangement for projecting an image onto a projection surface, said arrangement comprising a light source (26), a film stage (2), arranged following said light source, for holding a positive image recorded on a carrier medium, and projection optics (3) for projecting a illuminated positive image, is provided with a control unit (25), a light modulator (10) controllable by said control unit in order to generate an additional image on the basis of predetermined image data, said light modulator being followed by an optical device (11) for projecting the additional image onto the projection surface (34), and with a beam splitter (6) arranged between the light source (26) and the film stage (2) so as to split the light from the light source (26) into a first partial beam directed to the film stage (2) in order to illuminate the positive image and into a second partial beam which may be directed to the light modulator (10). Thus, a projection arrangement is provided which allows to project additional images, such as subtitles, in addition to the illuminated positive image.
申请公布号 US2002180936(A1) 申请公布日期 2002.12.05
申请号 US20020149950 申请日期 2002.06.17
申请人 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;(IPC1-7):G03B21/00 主分类号 G03B21/20
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