Ortho-linear imaging device

Details Ortho-linear imaging device Ortho-linear imaging device

1985-10-18

1987-07-21

Hix, L. T.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 54, 358214, 250578, H04N 312

Patent

active

046822356

ABSTRACT:
A two-dimensional image (1) is converted into an electronic signal (7). Image line segments (11) into which the image (1) has been divided are selectively projected onto a cylindrical image lens (4) and focused onto a linear array (5) of N photodetectors (15). A light modulator (3), a linear array of electro-optic shutter elements (13) arranged orthogonally to the photodetector array (5), is positioned between the image (1) and the image lens (4), and permits one of the image line segments (11) to be so projected while blocking the other segments (11). An object lens (2), a second cylindrical lens, focuses the image line segments (11) onto the light modulator (3). An electronic control circuit (6) accepts the electronic outputs (42) of the photodetectors (15) in synchronism with the sequential opening of the electro-optic shutter elements (13) corresponding to the image line segment (11) being converted. Three parallel detector arrays (5) can be used in a color imaging system. Each photodetector (15) may be a matrix of detector elements, to enable real-time digital image enhancement.

REFERENCES:
patent: 1976377 (1934-10-01), vonBronk
patent: 3803353 (1974-04-01), Sanderson et al.
patent: 4371892 (1983-02-01), Mir
patent: 4446479 (1984-05-01), Kurtz

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