Optoelectronic scanning apparatus

Details Optoelectronic scanning apparatus Optoelectronic scanning apparatus

1978-04-24

1980-05-27

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 102

Patent

active

042053498

ABSTRACT:
An original document for facsmile transmission or the like is fed over a horizontal transparent platen by rollers for scanning. A light source illuminates the document and a mirror reflects a light image of a linear portion of the document perpendicular to the direction of movement horizontally to a converging lens. The light image from the lens is reflected upwardly by another mirror onto the light receiving surface of a linear photosensor array. The light receiving surface of the array faces downwardly, minimizing accumulation of dust thereon. A light baffle in the form of a box is provided between the first mirror and converging lens and is formed with apertures for the light image to pass therethrough. A scan drive and amplifier circuit for the array is mounted closely adjacent thereto while a signal processing circuit comprising a quantization means is mounted on the box and electrically connected to the drive unit. The various units of the apparatus are individually detachable for ease of servicing. The arrangement of the various units prevents heat and stray light from the light source from reaching and affecting the array.

REFERENCES:
patent: 3466451 (1969-09-01), Hanchett, Jr.
patent: 3887765 (1975-06-01), Murahse et al.

Affiliated with

Also associated with

Rating

Optoelectronic scanning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optoelectronic scanning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optoelectronic scanning apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1122521