Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1999-03-23
2000-12-05
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351221, 623 4, A61B 310
Patent
active
061556823
ABSTRACT:
Apparatus and methods for shifting an image back and forth between first and second portions of the retina are described. Apparatus constructed in accordance with principles of the present invention preferably include spectacles, a fixed mirror, a pivoting mirror, a drive motor coupled to the pivoting mirror, and control circuitry coupled to the drive motor, the control circuitry causing the drive motor to pivot between first and second positions to shift an image from a first to a second portion of the retina.
REFERENCES:
patent: 4581031 (1986-04-01), Koziol et al.
patent: 4666446 (1987-05-01), Koziol et al.
patent: 4772113 (1988-09-01), Parker
patent: 5030231 (1991-07-01), Portney
Liljegren Gordon E.
Saperstein David A.
Steinberg Stanley P.
Manuel George
Trosino James
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