1 May 2001 Algorithm for expanding the dynamic range of a Shack-Hartmann sensor by using a spatial light modulator
Author Affiliations +
Optical Engineering, 40(5), (2001). doi:10.1117/1.1357193
Abstract
Normally, the dynamic range of a Shack-Hartmann sensor is limited by the foci leaving their respective subapertures, thus a definite attachment of the foci to their subapertures is difficult. By using an array of spatial light modulators in front of the microlenses of the sensor to switch on and off the subapertures, a definite assignment of the spots to their subapertures is possible. We present a coding algorithm that needs only log2N+1 frames to assign N spots unequivocal to their subapertures.
Norbert Lindlein, Johannes Pfund, Johannes Schwider, "Algorithm for expanding the dynamic range of a Shack-Hartmann sensor by using a spatial light modulator," Optical Engineering 40(5), (1 May 2001). http://dx.doi.org/10.1117/1.1357193
JOURNAL ARTICLE
4 PAGES


SHARE
KEYWORDS
Switching

Sensors

Wavefront sensors

Spatial light modulators

Wavefronts

Switches

Binary data

RELATED CONTENT


Back to Top