Photoelectric scanner

Details Photoelectric scanner Photoelectric scanner

1990-08-30

1991-08-20

Brown, Brian W.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 71, G03B 2752

Patent

active

050418696

ABSTRACT:
The photoelectric scanner is equipped with two circular disks having aligned light passage orifices and mounted on a common drive shaft. Lenses are located in these orifices, the focal points of which are in the plane of the copy master to be scanned. The beam emitted by the source of copying light and parallelized by the condenser arrives through the curved slot of a stationary diaphragm on the lens instantaneously moving through the area of the slot and is focused in the plane of the copy master. From the lens synchronously running on the other side of the copy master, the parallelized beam of light arrives through the curved slot of a subsequent stationary diaphragm and a condenser on a receiving and detection unit with dichroitic mirrors, absorption filters and photoelectric detectors. These detectors convert the optical signals into electric signals, which are conducted to the evaluating electronic device.

REFERENCES:
patent: 2300970 (1942-11-01), Reiss et al.
patent: 3677641 (1972-07-01), King et al.
patent: 3944362 (1976-03-01), Dailey
patent: 4061428 (1977-12-01), Amano et al.
patent: 4082465 (1978-04-01), Bicki et al.
patent: 4188125 (1980-02-01), Barbieri et al.
patent: 4352550 (1982-10-01), Uchida
patent: 4472046 (1984-09-01), Kohyama
patent: 4564866 (1986-01-01), Comberg
patent: 4748680 (1988-05-01), Margolin
patent: 4760421 (1988-07-01), Margolin
patent: 4873546 (1989-10-01), Zahn et al.
patent: 4933710 (1990-06-01), Beaulieu et al.
patent: 4951084 (1990-08-01), von Stein et al.
patent: 4975728 (1990-12-01), Gordon
patent: 4975729 (1990-12-01), Gordon

Affiliated with

Also associated with

Rating

Photoelectric scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1011422