Aperture plate for an exposure head for use in a picture scannin

Details Aperture plate for an exposure head for use in a picture scannin Aperture plate for an exposure head for use in a picture scannin

1977-11-28

1979-12-11

Konick, Bernard

Facsimile and static presentation processing

Facsimile

Recording apparatus

17910031, 355 52, 358202, H04N 122, G11B 718, G03B 2750, G03B 2768

Patent

active

041786157

ABSTRACT:
An aperture plate for use in the exposure head of a picture scanning reproducer which constructs an image by exposure of a film attached to a rotating drum in scanning mode, the aperture of which plate has a shape incorporating parallel lines and end portions consisting of twin lines opening up away from a cusp, which in some embodiments may be exponential curves, whereby overlap effects in the constructed image are substantially eliminated.

REFERENCES:
patent: 1717781 (1929-06-01), Ives
patent: 3541253 (1970-11-01), Shonnard

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