Acousto-Optic Laser Recording

Leo Bademian

doi:10.1117/12.957210

1 August 1979 Acousto-Optic Laser Recording

Leo Bademian

Proceedings Volume 0175, Airborne Reconnaissance IV; (1979) https://doi.org/10.1117/12.957210
Event: Technical Symposium East, 1979, Washington, D.C., United States

Abstract

This paper describes techniques for the implementation of high speed, high resolution laser line and/or raster scanned recorders through use of acousto-optic deflection and modulation. A rationale for the design of scanned imaging is presented, discussing such topics as horizontal and vertical MTF, exposure reauirements when scanning with a Gaussian spot and the effect of film characteristics (gamma). A description of several working systems is presented. These include the LR-100/200 Laser Recorder which involves the recording of 875 line television imagery on 8 and 16mm dry processed film, and a high resolution line scanner (4000-6000 spots) that was brassboarded solely with the use of acousto-optic components. The heart of each of these systems is a patented acousto-optic device called the chirp scanner which permits high resolution, high speed scans with literally zero flyback time. This device also forms the basis of a future system capable of direct digital recording at a 150 to 200 Mbit rate.

Citation Download Citation

Leo Bademian "Acousto-Optic Laser Recording", Proc. SPIE 0175, Airborne Reconnaissance IV, (1 August 1979); https://doi.org/10.1117/12.957210

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KEYWORDS

Raster graphics

Modulation

Modulation transfer functions

Acousto-optics

Modulators

Scanners

Acoustics

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