Paper
1 January 1992 Holographic method and device for obtaining a quantitative likeness measure
Nils H. Abramson
Author Affiliations +
Abstract
We propose a new contouring method based on sending picosecond pulses toward a test object in such a sequence that if the object has the wanted shape all the scattered light arrives simultaneously to a detector. The result will be that the shortness of the detected pulse is a measure of the likeness between a holographically recorded master object and the test object.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nils H. Abramson "Holographic method and device for obtaining a quantitative likeness measure", Proc. SPIE 1553, Laser Interferometry IV: Computer-Aided Interferometry, (1 January 1992); https://doi.org/10.1117/12.135358
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KEYWORDS
Holograms

Holography

Picosecond phenomena

Sensors

Light scattering

Pulsed laser operation

Beam splitters

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