Optical lenses for correcting color vision

Details Optical lenses for correcting color vision Optical lenses for correcting color vision

2000-01-03

2000-11-21

Manuel, George

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

G02C 710

Patent

active

061492701

ABSTRACT:
There is provided an optical lens for correcting color vision for always and adequately correcting and normalizing anomalous color vision. Wavelength where a spectral sensitivity curve of anomalous color among the three primary colors of a person having anomalous color vision marks its maximum value is corrected so as to enlarge the difference from wavelength where a spectral sensitivity curve of color adjoining thereto marks its maximum valueby setting the transmittance around the wavelength where the spectral sensitivity curve of the color adjoining to the spectral sensitivity curve of the anomalous color marks its maximum value below 50% and by setting the transmittance around the wavelength where the spectral sensitivity curve of the anomalous color marks its maximum value as high as possible.

REFERENCES:
patent: 5369453 (1994-11-01), Chen et al.
patent: 5774202 (1998-06-01), Abraham et al.
patent: 5801808 (1998-09-01), Abraham et al.

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