Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1989-11-16
1991-08-27
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, 351221, A61B 310
Patent
active
050429396
ABSTRACT:
A laser scanning type eye fundus camera is designed such that retina photographing for one frame is perofrmed alternately with two laser beams having two wavelengths among three laser beams wavelengths of the primary three colors and with one laser beam including the remaining one wavelength to obtain a retina image composed of the wavelengths of the respective primary colors which are combined to obtain one color retina image.
REFERENCES:
patent: 4781453 (1988-11-01), Kobayashi
Bovernick Rodney B.
Topcon Corporation
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