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Proceedings Paper

High Speed, Large Format Wavefront Sensor Employing Hexflash Phase Analysis
Author(s): Jimmy Roehrig; Paul Ehrensberger; Mark Okamura
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Paper Abstract

The concept of hexflash phase analysis described in a previous talk' has been extended to two dimensions. The associated phase unwrapper also works in two dimensions, making the device useful for high speed wave front sensors. A wave front sensor is described which uses high speed 32 x 32 arrays at each focal plane, enabling real time phase measurment at up to 1024 points. These measurements are acquired at a nominal frame rate of 5 KHz. The processing electronics which will be described adds a transport delay of less than 1/20th of a frame.

Paper Details

Date Published: 20 November 1989
PDF: 7 pages
Proc. SPIE 1163, Fringe Pattern Analysis, (20 November 1989); doi: 10.1117/12.962780
Show Author Affiliations
Jimmy Roehrig, Lockheed Research Laboratory (United States)
Paul Ehrensberger, Lockheed Research Laboratory (United States)
Mark Okamura, Lockheed Research Laboratory (United States)


Published in SPIE Proceedings Vol. 1163:
Fringe Pattern Analysis
Graeme T. Reid, Editor(s)

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