Image reader

Details Image reader Image reader

1996-09-04

1998-02-10

Pitts, Harold

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

235454, 235455, 235467, 235472, H04N 314

Patent

active

057172005

ABSTRACT:
A projector projects an image. A scanning mirror deflects the projected image by mirror oscillation method. A reading device reads the projected image deflected by said scanning mirror and outputs an image data corresponding to the projected image. A discriminating device discriminates which projection lens is mounted on said projection lens mount among said plurality of lenses. A memory device stores respective distortion data of said plurality of projection lenses and distortion data concerned with a distortion being due to the oscillation method. A correcting device corrects distortion of the distortion data of the projection lens which is discriminated to be mounted on the projection lens mount and the distortion data concerned with a distortion being due to the oscillation method.

REFERENCES:
patent: 4794427 (1988-12-01), Shirai et al.
patent: 5084611 (1992-01-01), Okisu et al.
patent: 5517018 (1996-05-01), Zhang et al.

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