Image reading apparatus

Photocopying – Contact printing – Book page copying

Patent

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Details

355 40, 355 41, G03B 2704, G03B 2752

Patent

active

059910100

ABSTRACT:
The amount of light emitted from a lamp is adjusted by a turret and a diaphragm for each light of the component colors and is irradiated on a photographic film via a light diffusion box. Light transmitted through the photographic film is made incident on a three-line CCD via a lens unit. In order to read a film image, first, the photographic film is conveyed at high speed in a predetermined direction and is read under a predetermined reading condition (pre-scan), and based on image data obtained by the reading, a recorded position of each image is determined and a reading condition during fine scan is calculated for each image, and each image is read under the calculated reading condition while the film is conveyed at relatively low speed in a direction opposite to the predetermined direction (fine scan).

REFERENCES:
patent: 5515136 (1996-05-01), Nishio et al.
patent: 5550613 (1996-08-01), Hasegawa et al.
patent: 5561743 (1996-10-01), Kanai et al.
patent: 5719540 (1998-02-01), Takaoka et al.
patent: 5745220 (1998-04-01), Okazaki et al.

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