Shutter system for optical multi-lens scanner

Details Shutter system for optical multi-lens scanner Shutter system for optical multi-lens scanner

1979-11-16

1981-11-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250568, 250236, 369109, G06K 710, G11B 700

Patent

active

043013740

ABSTRACT:
An optical information storage system having a data record with control markings therein and an optical readout system including a scanner. The readout system uses a laser light source and focusing optics to direct the light onto the data record for modulation and subsequent readout of the modulated light. Shutter elements are interposed to intercept the transmission of light in response to control signals in the data. The shutter, of the electronic type such as lead lanthanum zirconate titanate, may be positioned either between the source of light and the scanner or between the data record and the readout.

REFERENCES:
patent: 3919698 (1975-11-01), Bricot et al.
patent: 4105926 (1978-08-01), Reno et al.

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