Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent
1989-09-29
1991-01-22
Hix, L. T.
Photocopying
Projection printing and copying cameras
Identifying, composing, or selecting
355 77, 355 38, 250559, G03B 2732, G03B 2752
Patent
active
049874403
ABSTRACT:
An exposed and developed photographic filmstrip having a series of image areas is conveyed along a path and is photoelectrically scanned at a first location of the path to detect regions characterized by marked density jumps. A signal is generated in response to detection of each such characteristic region and a first distance measuring device disposed near the first location assigns a first distance reading to each characteristic region upon detection thereof. The first distance readings are representative of the positions of the characteristic regions longitudinally of the filmstrip. Each signal is stored together with the respective first distance reading. The stored signals and first distance readings are used to calculate the positions of the image areas longitudinally of the filmstrip, and the calculated positions are likewise stored. From the first location, the filmstrip travels to a second location of the path where a notch is punched in the filmstrip adjacent to each image area. Immediately upstream of the second location, the filmstrip is photoelectrically scanned for a second time to again detect the characteristic regions.
REFERENCES:
patent: 4167678 (1979-09-01), Mischo et al.
patent: 4565442 (1986-01-01), Benker et al.
patent: 4727399 (1988-02-01), Matsumoto
Benker Gerhard
Kluter Ulrich
Nitsch Wilhelm
Payrhammer Bernd
Treiber Helmut
AGFA Gevaert AG
Hix L. T,.
Kontler Peter K.
Rutledge D.
LandOfFree
Method of and apparatus for positioning image areas of film does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for positioning image areas of film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for positioning image areas of film will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1557539