Shutter system for optical multi-lens scanner
AssigneeFuji Photo Film Co., Ltd.
InventorMasakazu Hashiue
Life of this patent
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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.
Claims9
In an optical information storage system having a data record and a scanner moving relatively to each other, the data record having a data train thereon, a source of light optic means to direct said light from said source to said scanner, said scanner focusing said light on said data train to be modulated by said data train, and readout means for recovering said modulated light, the improvement comprising;
- shutter means to interrupt the transmission of light and control means to selectively actuate said shutter means in response to signals in said data train.
Dependencies are inferred from the claim text.