Method and apparatus for making photographic prints from negativ

Photocopying – Projection printing and copying cameras – Multicolor picture

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

355 77, G03B 2772

Patent

active

059431202

ABSTRACT:
The present invention concerns a method of making photographic prints on stock from negatives that differ in density range. The appropriateness of the exposure gradient of the stock for the particular negative is ensured by employing stock with a definite "contrast-Schwarzchild-effect" and by so varying the intensity of the light that the negative is exposed to during printing that the gradient is adapted to the characteristics of the particular negative as a function of the accordingly varied printing time.

REFERENCES:
patent: 3724947 (1973-04-01), Paulus
patent: 3753707 (1973-08-01), Burger et al.
patent: 3831021 (1974-08-01), Muhlogger
patent: 4154523 (1979-05-01), Rising et al.
patent: 4175856 (1979-11-01), Pone, Jr.
patent: 4206998 (1980-06-01), Tokuda
patent: 4222661 (1980-09-01), Wahli et al.
patent: 4239385 (1980-12-01), Hujer
patent: 4757351 (1988-07-01), Birgmeir
patent: 4933754 (1990-06-01), Reed et al.
patent: 5223892 (1993-06-01), Ikenoue et al.
patent: 5311251 (1994-05-01), Roule et al.
patent: 5333034 (1994-07-01), Gu et al.
patent: 5353095 (1994-10-01), Terashita
patent: 5528392 (1996-06-01), Nakagawa et al.
patent: 5589954 (1996-12-01), Watanabe
patent: 5612903 (1997-03-01), Miller
"Fotografische Verfahren mit Silberhalogeniden" von Fr. Werner Walther, VEB Fotokinoverlag Leipzig pp. 216-219.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for making photographic prints from negativ 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 and apparatus for making photographic prints from negativ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making photographic prints from negativ will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-471972

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.