Tinted lens and method of making same

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks

Reexamination Certificate

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C351S159000

Reexamination Certificate

active

07931369

ABSTRACT:
A lens and a method of making lenses suitable for color blindness correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to the desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. If desired, the dyes may be heated during immersion.

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International Search Report of PCT/US2007/073973 dated Mar. 31, 2008.
Web Page http://www.colorview.co.uk/products.php; entitled “ColorView United Kingdom”; Aug. 30, 2007 10:40 AM; pp. 1-5.

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