Nullifying lens and test method for quality control of intraocul

Details Nullifying lens and test method for quality control of intraocul Nullifying lens and test method for quality control of intraocul

1993-12-07

1995-02-07

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

G01B 900

Patent

active

053879708

ABSTRACT:
A method for testing multifocal intraocular lenses and intraocular lenses having designed-in optical aberrations. The method includes the providing of a nullifying lens having an optical zone configured such that light passing through the optical zone and through the intraocular lens is focused at a single plane if the intraocular lens does not contain any fabrication flaws. The invention further includes a nullifying lens constructed such that light passing through the nullifying lens and through an intraocular lens is focused at a single plane if the intraocular lens does not contain any fabrication flaws.

REFERENCES:
patent: 4213701 (1980-07-01), Lanzilloti
patent: 4508216 (1985-04-01), Kelman
patent: 4639133 (1987-01-01), Cole
"Optical Shop Testing," 2d Edition, Chapter 5, John Wiley & Sons, Inc., 1992.

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