Photography – With film drive – Having significant electronic circuit detail
Patent
1997-08-15
1999-04-06
Lee, Eddie C.
Photography
With film drive
Having significant electronic circuit detail
396413, G03B 1302
Patent
active
058929975
ABSTRACT:
A film rewinding apparatus for a camera is described whereby the completion of film rewinding is accurately timed even if environmental conditions change. First edge detecting mechanism is positioned on a winding-spool side of the camera on a path on which perforations of the film pass and second edge detecting mechanism is positioned on the film cartridge side of the camera. A set time period used by a timer for timing the completion of the film rewinding is calculated based on a time period during which perforation edges detected by the first edge detecting mechanism are detected by the second edge detecting mechanism. If the perforation edges of the film are not detected within the set time period, a determination is made that the film rewinding has been completed and the rewinding operation is terminated.
Nakamura Toshiyuki
Yamazaki Youichi
Yoshizawa Akihiro
Lee Eddie C.
Nikon Corporation
Tuccillo Nicholas T.
LandOfFree
Film rewinding apparatus for a camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Film rewinding apparatus for a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film rewinding apparatus for a camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1380637