Optics: measuring and testing – Lens or reflective image former testing
Reexamination Certificate
2008-01-24
2010-02-09
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
Lens or reflective image former testing
Reexamination Certificate
active
07659971
ABSTRACT:
Wavefront measuring systems and methods are disclosed which may be employed, for example, in detecting phase aberrations in a spectacle lens and in an eye. Various embodiments include disposing a modulation pattern in the path of a return beam from the spectacle lens or the eye, and imaging a diffraction pattern at a self-imaging plane relative to the modulation pattern with a detector. The diffraction pattern is analyzed and the results are used to produce a representation of the wavefront phase characteristics that describe aberrations in the lens or eye being measured. Illumination and processing techniques for improving the measurement results are disclosed. Various embodiments comprise systems adaptable to both measure aberrations in lenses in spectacles as well as in a patient's eyes.
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Dreher Andreas W.
Ferro John
Foote William G.
Warden Laurence
Merlino Amanda H
Morrison & Foerster / LLP
Ophthonix, Inc.
Toatley Jr. Gregory J
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