High Speed, Large Format Wavefront Sensor Employing Hexflash Phase Analysis

Jimmy Roehrig; Paul Ehrensberger; Mark Okamura

doi:10.1117/12.962780

20 November 1989 High Speed, Large Format Wavefront Sensor Employing Hexflash Phase Analysis

Jimmy Roehrig, Paul Ehrensberger, Mark Okamura

Proceedings Volume 1163, Fringe Pattern Analysis; (1989) https://doi.org/10.1117/12.962780
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

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.

Citation Download Citation

Jimmy Roehrig, Paul Ehrensberger, and Mark Okamura "High Speed, Large Format Wavefront Sensor Employing Hexflash Phase Analysis", Proc. SPIE 1163, Fringe Pattern Analysis, (20 November 1989); https://doi.org/10.1117/12.962780

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