基本信息:
- 专利标题： SWITCHABLE FORMAT FILM PROJECTION SYSTEM
- 专利标题（中）：切换方式在电影投影系统
- 申请号：EP98939134.7 申请日：1998-07-30
- 公开(公告)号：EP1002257A1 公开(公告)日：2000-05-24
- 发明人： GOODHILL, Dean, K. , BEHRNS, Don, P.
- 申请人： Maxivision Cinema Technology
- 申请人地址： 8942 Wonderland Park Avenue Los Angeles, CA 90046 US
- 专利权人： Maxivision Cinema Technology
- 当前专利权人： Maxivision Cinema Technology
- 当前专利权人地址： 8942 Wonderland Park Avenue Los Angeles, CA 90046 US
- 代理机构： Steil, Christian, Dipl.-Ing.
- 优先权： US907429 19970807
- 国际公布： WO9908155 19990218
- 主分类号： G03B21/48
- IPC分类号： G03B21/48 ; G03B1/24
摘要：
The present invention relates to film transport systems for motion picture projectors and, more particularly, to a film projector movement that is capable of transporting film prints having frames spanning a predetermined number of perforations per frame at a specified projection frame-rate and then automatically switching to another film format having frames spanning a different number of perforations per frame as well as a different projection frame-rate, based on the detection of an encoded trigger strip on the film which carries the format characteristics of the incoming film. A controller enables the system to automatically switch between a variety of different film formats and frame-rates, on the same projector and on the same platter of film, without substantially interrupting or delaying operation of the projector.
公开/授权文献:
- EP1002257B1 SWITCHABLE FORMAT FILM PROJECTION SYSTEM 公开/授权日：2004-11-03
IPC结构图谱:
| G | 物理 |
| --G03 | 摄影术；电影术；利用了光波以外其他波的类似技术；电记录术；全息摄影术 |
| ----G03B | 摄影、放映或观看用的装置或设备；利用了光波以外其他波的类似技术的装置或设备；以及有关的附件 |
| ------G03B21/00 | 放映机或放映式看片机；有关附件 |
| --------G03B21/14 | .零部件 |
| ----------G03B21/32 | ..专用于电影放映的零部件 |
| ------------G03B21/43 | ...驱动机构 |
| --------------G03B21/44 | ....条片供片的传动机构；片门和间断供片的机械耦合 |
| ----------------G03B21/48 | .....为改变帧速度的；为调节影片速度稳定的 |