Photocopying – Projection printing and copying cameras – Image transferred to or from curved surface
Patent
1992-09-14
1994-05-17
Gellner, Michael L.
Photocopying
Projection printing and copying cameras
Image transferred to or from curved surface
355 76, G03B 2758, G03B 2762
Patent
active
053132491
ABSTRACT:
An arc-segment-shaped gate for a photographic film scanning apparatus has a six inch radius from a pivot shaft of the gate to the outermost surface at which the scanning of the film is to occur. The gate is pivoted around a pivot axis through an optical chassis of the scanning apparatus and is driven by a worm-gear segment arrangement via a reversible electric motor. The gate swings through an arc of approximately 61/2.degree. on each side of a vertical initializing position of the gate and has an aperture at which a frame of the film can be held against the gate by a clamping arrangement which is moved with the gate. The gate of the present invention is that the gate is mounted to be adjusted about a spherical bearing by the use of bearings mounted on eccentric shafts against which a wear plate on the gate is registered. Pins and biasing springs mounted on the gate and the gate system drive allow adjustment of the gate in .THETA. X and .THETA. Z directions for obtaining precise optical alignment.
REFERENCES:
patent: 3473874 (1969-10-01), Hall et al.
patent: 4774553 (1988-09-01), Blanding et al.
patent: 4965632 (1990-10-01), Jadrich et al.
Ehrne Franklin D.
Erck Gary L.
Hochreiter Eric P.
Dugas Edward
Eastman Kodak Company
Gellner Michael L.
Malley D. P.
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