Contact lens inspection apparatus and lens mold for use in such

Details Contact lens inspection apparatus and lens mold for use in such Contact lens inspection apparatus and lens mold for use in such

1995-06-02

1996-11-12

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356239, G01N 2188

Patent

active

055745547

ABSTRACT:
Collimated white light is transmitted through a transparent lens mold having a molded lens resting on a curved surface thereof. A telecentric lens and a camera having a digital output are used to view the illuminated lens to obtain pixel image data of the lens. The pixel image data is analyzed by a computer to detect deformities in the molded lens.

REFERENCES:
patent: 4121896 (1978-10-01), Shepard
patent: 4150073 (1979-04-01), Neefe
patent: 4159292 (1979-06-01), Neefe
patent: 4166088 (1979-08-01), Neefe
patent: 4197266 (1980-04-01), Clark et al.
patent: 4208364 (1980-06-01), Shepherd
patent: 4209289 (1980-06-01), Newcomb et al.
patent: 4229390 (1980-10-01), Neefe
patent: 4284399 (1981-08-01), Newcomb et al.
patent: 4285890 (1981-08-01), Mizutani et al.
patent: 4347198 (1982-08-01), Ohkada et al.
patent: 4379510 (1983-04-01), Ziegel
patent: 4469646 (1984-09-01), Rawlings
patent: 4684014 (1987-08-01), Davenport
patent: 4782946 (1988-11-01), Pollak
patent: 5036971 (1991-08-01), Seden et al.
patent: 5160749 (1992-11-01), Fogarty
patent: 5271875 (1993-12-01), Appleton et al.
patent: 5355213 (1994-10-01), Dotan
patent: 5395558 (1995-03-01), Tsai
patent: 5461570 (1995-10-01), Wang et al.
Patent Abstracts of Japan, vol. 8, No. 139 (E-253)(1576) 28 Jun. 1984.

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