Optical data record copier having array of lenses with field gap

Details Optical data record copier having array of lenses with field gap Optical data record copier having array of lenses with field gap

1976-04-21

1977-09-27

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Plural

346107R, 354102, 355 50, G03B 2744, G03B 2750, G03B 3310, G01D 942

Patent

active

040508110

ABSTRACT:
An optical data record copying apparatus is described which includes an array of lenses whose viewing fields do not overlap but are separated by field gaps. The viewing field gaps are aligned with data gaps between data groups in the data tracks on the master record to prevent distortion of the copied data. The optical data is high density digital or analog data, such as digital color television signals recorded on an optical video disc. The lens array may include a plurality of lens pairs which are separated by a light opaque mask having apertures each aligned with different lens pairs for limiting the viewing field of each lens pair. One embodiment of the copying apparatus of the present invention employs a fixed lens array and moves the master record and copy so that such lens array scans the entire length of the master. Another embodiment employs a moving lens array and a fixed master record and copy, such lens array and associated light source being scanned along the length of the master during copying.

REFERENCES:
patent: 2095826 (1937-10-01), Miller
patent: 2458877 (1949-01-01), Rose
patent: 3264933 (1966-08-01), Frank
patent: 3422219 (1969-01-01), Teeple
patent: 3592542 (1971-07-01), Kaufer et al.
patent: 3605593 (1971-09-01), Anderson
patent: 3694076 (1972-09-01), Weber
patent: 3704068 (1972-11-01), Waly
patent: 3712202 (1973-01-01), Lang
patent: 3820893 (1974-06-01), Donohue et al.
patent: 3907420 (1975-09-01), Yevich

Affiliated with

Also associated with

Rating

Optical data record copier having array of lenses with field gap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical data record copier having array of lenses with field gap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical data record copier having array of lenses with field gap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1811906