Negative film inspection apparatus

Details Negative film inspection apparatus Negative film inspection apparatus

1989-10-05

1991-08-20

Lall, Parshotam S.

Boots, shoes, and leggings

36457101, 356404, 356443, 382 41, G02B 100, G01J 340

Patent

active

050419951

ABSTRACT:
In a negative inspection apparatus for providing exposure correction data, a data input device inputs visual inspection data of film frames, and a frame scanner provides transmitted light data for a large number of points of the frame so as to compute scanning data. Exposure correction data of a film frame is provided based on inspection data and scanning data of frame.

REFERENCES:
patent: 4217648 (1980-08-01), Thurm et al.
patent: 4646252 (1990-11-01), Terashita
patent: 4666307 (1987-05-01), Matsumoto
patent: 4802107 (1989-01-01), Yamamoto et al.
patent: 4809198 (1989-02-01), Terashita
patent: 4857960 (1989-08-01), Hosaka et al.
patent: 4937764 (1990-06-01), Komatsu et al.

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