System for visualization of optical marking on an ophthalmic...

Details System for visualization of optical marking on an ophthalmic... System for visualization of optical marking on an ophthalmic...

2008-01-29

2008-01-29

Punnoose, Roy M. (Department: 2886)

Optics: measuring and testing

Lens or reflective image former testing

C356S126000

Reexamination Certificate

active

10552584

ABSTRACT:
The system comprises a light source, supplying an incident light beam illuminating the ophthalmic lens. On the optical path of the incident beam, reflecting means are arranged downstream from the ophthalmic lens and a collimation and magnifying lens is arranged upstream from the ophthalmic lens. A camera, the lens, the ophthalmic lens and the reflecting means are arranged on the same main optical axis. The reflecting means comprise a plurality of flat reflecting faces, arranged in the form of at least one cube corner block open in the direction of the ophthalmic lens. The flat faces can form a matrix of adjacent cube corner blocks made of plastic.

REFERENCES:
patent: 3737238 (1973-06-01), Reiner et al.
patent: 4283139 (1981-08-01), Swope
patent: 5894348 (1999-04-01), Bacchi et al.
patent: 6088089 (2000-07-01), Reis
patent: 2 115 966 (1972-07-01), None
patent: 2 475 222 (1981-08-01), None
patent: 511520 (1976-09-01), None

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