Infrared scanning of sprocket holes

Details Infrared scanning of sprocket holes Infrared scanning of sprocket holes

2011-04-19

2011-04-19

Wong, Allen (Department: 2482)

Television

Special applications

Film, disc or card scanning

C348S061000, C348S097000

Reexamination Certificate

active

07929015

ABSTRACT:
To be able to scan the sprocket holes of a film with improved precision by means of a film scanner, in which a correction signal is generated for compensating picture steadiness errors, it is proposed that the light source generates light in the infrared range, and that the scanning sensor(s) is (are) sensitive in the infrared range.

REFERENCES:
patent: 4652125 (1987-03-01), Bowen et al.
patent: 4845531 (1989-07-01), Nagano
patent: 4875102 (1989-10-01), Poetsch
patent: 5519510 (1996-05-01), Edgar
patent: 3819496 (1989-01-01), None

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