Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2011-05-31
2011-05-31
Mack, Ricky L (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S209000, C351S210000, C351S211000, C351S215000
Reexamination Certificate
active
07950801
ABSTRACT:
The invention relates to a device, for measuring the contrast of fringes in a Michelson interferometer at full field, comprising a Wollaston prism for diverting two perpendicular incident polarizations into two different emergent directions, said diverting means being arranged within the interferometer as substitute for a single polarizer. The device is of application to a Michelson interferometer used in an OCT tomographical system and comprising means for obtaining interferometric contrast without use of a modulation technique or synchronous detection methods.
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C.K. Hitzenberger, et al.; Differential Phase Contrast in Optical Coherent Tomography; Optics Letters; vol. 24, No. 9, May 1, 1999, pp. 622-624, XP001183361; p. 622-623.
Lacombe François
Lafaille David
Centre National de la Recherche Scientifique
Greer Burns & Crain Ltd.
Mack Ricky L
Mauna Kea Technologies
Observatoire de Paris
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