Cuvette for ophthalmic lens

US8427636B2 · kind B2 · utility

Assignees

• Johnson & Johnson Vision Care, Inc. · US
• Arizona Board of Regents on Behalf of the University of Arizona · US

Inventors

• Simon Prince · Carlsbad, US
• Michael Sherwood · Agoura, US
• Robert E. Fischer · Westlake Village, US
• Syed Tariq Shafaat · Santa Monica, US
• Shawn Mulcahey · Moorpark, US
• Paul Hudson · Newbury Park, US
• Greg Moeller · Moorpark, US
• Gregory A. Williby · Jacksonville, US
• Russell T. Spaulding · St. Augustine, US
• John C. Hootman · Orange Park, US
• Russell J. Edwards · Hermitage, US
• John E. Greivenkamp, Jr. · Tucson, US

Key dates

• Filing date: Dec 21, 2007
• Grant date: Apr 23, 2013
• Expiry date: May 8, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B2290/45
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Modified MZ (Mach-Zender) interferometers are utilized to analyze the transmitted, aspherical wavefront of an ophthalmic lens by mounting the lens in a cuvette having a rotatable carousel that can hold multiple lenses. Fresh, temperature controlled, saline solution is circulated about the lenses, and the cuvette is positioned in a vertical test arm of the interferometer configuration. Reverse raytracing is utilized to remove aberrations induced into the wavefront as it is imaged from immediately behind the lens to the detector of the interferometer.