发明授权
- 专利标题： Film scanner and detection apparatus therefor
- 专利标题（中）： 胶片扫描仪及其检测装置
-
申请号： US11899904申请日： 2007-09-06
-
公开(公告)号： US07671352B2公开(公告)日： 2010-03-02
- 发明人: Andreas Loew
- 申请人： Andreas Loew
- 申请人地址： DE Weiterstadt
- 专利权人： DFT Digital Film Technology Holding GmbH
- 当前专利权人： DFT Digital Film Technology Holding GmbH
- 当前专利权人地址： DE Weiterstadt
- 代理商 Henry M. Feiereisen; Ursula B. Day
- 优先权： DE102006043956 20060914
- 主分类号： G01N21/86
- IPC分类号： G01N21/86 ; H04N5/253
摘要：
A detection apparatus for detecting perforation holes of a cinematographic film comprises at least one light source, at least one scanning sensor, which is arranged so as to receive light emitted by the light source after interaction with a perforation zone of the film, and an evaluation circuit for detecting, by means of an output signal of the scanning sensor, when an edge of a perforation hole passes through between light source and scanning sensor. The light source emits light which is polarized with a first polarization and the scanning sensor is sensitive selectively to light with a second polarization.
公开/授权文献
- US20080067395A1 Film scanner and detection apparatus therefor 公开/授权日：2008-03-20
信息查询
