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Proceedings Paper

Z-View diffractive wavefront sensor: principle and applications
Author(s): Yueai Liu; Laurence Warden; Keith Dillon; Gary Mills; Andreas Dreher
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Paper Abstract

A novel wavefront sensor (Z-ViewTM) using a two dimensional diffractive grating has been developed at Ophthonix, Inc. Based on the Talbot self-imaging theory, a CMOS camera is placed behind the grating to capture the first Talbot image of the aberrated wavefront. This captured Talbot image is analyzed to recover the wavefront aberration. The diffractive grating wavefront sensor has been used in Ophthonix's Z-View Aberrometer, an objective refractive vision assessment system which is now commercially used in optometrist's offices/clinics across the United States of America. Coupled with a deformable mirror and other auxiliary optics systems, Z-View wavefront sensor forms the A-View adaptive optic vision correction system at Ophthonix. This A-View system is used to study the effect of complete wavefront correction in human vision, and has potential application in prescribing Ophthonix's wavefront-guided iZonTM lenses. In this paper, the wavefront sensing principle of this novel diffractive wavefront sensor and its applications will be discussed.

Paper Details

Date Published: 8 June 2006
PDF: 9 pages
Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 601809 (8 June 2006); doi: 10.1117/12.669248
Show Author Affiliations
Yueai Liu, Ophthonix Inc. (United States)
Laurence Warden, Ophthonix Inc. (United States)
Keith Dillon, Ophthonix Inc. (United States)
Gary Mills, Ophthonix Inc. (United States)
Andreas Dreher, Ophthonix Inc. (United States)

Published in SPIE Proceedings Vol. 6018:
5th International Workshop on Adaptive Optics for Industry and Medicine
Wenhan Jiang, Editor(s)

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