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Optical system applicable to improving the dynamic range of Shack-Hartmann sensors

Choo, Hyuck and Muller, Richard S. (2008) Optical system applicable to improving the dynamic range of Shack-Hartmann sensors. Patent number: US 7,355,793.

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An addressable array of lenses is disclosed. Two electrical connections per row address specific lenses within that row. Carriages support individual lenses, thus forming resonant units with frequencies unique within each row. A voltage, having the same frequency as a selected resonant unit is applied. The selected lens produces a resonating image. Testing has verified proper resonance addressing within a 5-by-5 array of microlenses. The array can be applied to a Shack-Hartmann (SH) sensor. To compensate for errant images formed outside of their image area, resonating images are identified by a processor. The array thus improves the dynamic range of the wavefront aberration that can be measured by an SH sensor. The inventors currently estimate the improvement over conventional designs to be about a factor of 30.

Item Type:Patent
Related Patents:US20050275946, WO2005114297A2, WO2005114297A3
Patent Classification:U.S. Classification: 359/619, 359/237. International Classification: G02B27/46, G02F1/00, G02B27/09, G02B27/10, G02B26/00, B29D11/00, G02B26/08. Cooperative Classification: B29D11/00365, G02B26/0875, G02B27/0933, G02B27/0961, G02B27/46. European Classification: G02B26/08R, G02B27/09M, G02B27/46, G02B27/09S2L1, B29D11/00C9.
Patent Assignee:Regents of the University of California
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URLURL TypeDescription Patents site,355,793.PN.&OS=PN/7,355,793&RS=PN/7,355,793PatentU.S. Patent Office (European Patent Office)
Choo, Hyuck0000-0002-8903-7939
Additional Information:Publication number US7355793 B2. Publication type Grant. Application number US 11/133,455. Publication date Apr 8, 2008. Application publication date Dec 15, 2005 Filing date May 18, 2005. Priority date May 19, 2004. Parent Case Text: This application claims priority from Provisional U.S. Patent Application 60/572,794 filed May 19, 2004 "Micro-Electromechanical Array Using Resonant Frequency for Device Selection", by Choo et al. This application is incorporated herein by reference for all purposes.
Record Number:CaltechAUTHORS:20151104-162038645
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61864
Deposited By: Katherine Johnson
Deposited On:05 Nov 2015 00:27
Last Modified:03 Oct 2019 09:12

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