10 July 1979 Optical Principles Of Information Retrieval From Optical And Nonoptical Recordings
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Proceedings Volume 0177, Optical Information Storage; (1979); doi: 10.1117/12.957253
Event: Technical Symposium East, 1979, Washington, D.C., United States
Abstract
This paper reviews the optical principles upon which ultra-high resolution optical readout is predicated. Several different recorded geometries and optical readout techniques are discussed. The discussion includes a description of focus and track sensing techniques and photodetector configurations. As an example of these optical principles the application of optical information retrieval to the quality control and monitoring of electromechanically mastered VideoDiscs is detailed and optical-readout performance assessed.
© (1979) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. H. Firester, "Optical Principles Of Information Retrieval From Optical And Nonoptical Recordings", Proc. SPIE 0177, Optical Information Storage, (10 July 1979); doi: 10.1117/12.957253; https://doi.org/10.1117/12.957253
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KEYWORDS
Diffraction

Photodetectors

Diffraction gratings

Sensors

Optical tracking

Signal detection

Data storage

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