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Proceedings Paper

Design of Shack-Hartmann plate with GRIN rod lenses
Author(s): Zhao Peiqian; Bifang Zhou
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Paper Abstract

Shack-Hartmann wavefront sensor, which is derived from the classical Hartmann testing method, is one of the most convenient methods available for the opt1a1 testing of telescopes on site on natural stars!'2'9 It also has many applications in adaptive optics, active optics and CAM of optical mirror.' Figure 1 shows the principle of the method. Light source (1) which is from tested system and source (2) which is diffraction-limited are close enough. Light from tested source (1) and reference source (2) are both collimated by lens a and incide upon S-H plate which is a lens array. Each lenslet forms two point images, one is of surce (i), the other of source (2). The distance vector between each pair of images reflects the angular aberration of the tested wavefront over the subaperture as given by (formula available in paper) where W-wavefront function, d, d-..distances between the ith pair of images in x and y directions respectively, f-..focal length of lenslet. There are several methods to manufacture the S-H plate . In 1987, we pointed out the method of producing S-H plate with GRIN rod lenses in our active optical system with primary diameter 530mm. Following are the design of our S-H pla

Paper Details

Date Published: 1 November 1990
PDF: 7 pages
Proc. SPIE 1334, Current Developments in Optical Engineering IV, (1 November 1990); doi: 10.1117/12.22841
Show Author Affiliations
Zhao Peiqian, Research Ctr. for Astronomical (France)
Bifang Zhou, Research Ctr. for Astronomical (China)

Published in SPIE Proceedings Vol. 1334:
Current Developments in Optical Engineering IV
Robert E. Fischer; Warren J. Smith, Editor(s)

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