EYE CONTACT LENS Russian patent published in 2011 - IPC G02C7/04 A61F9/00 

FIELD: physics.

SUBSTANCE: on the end surface of an eye contact lens, having an outer front and rear surfaces, there are two patches lying in parallel on opposite sides of the end surface of the lens, and on its front surface there is a film made from a selenium solution on which a protective coating made from a solution of methoxyethyl mercuric acetate is deposited. On top of these coatings and the lens, there are two annular concentric cuts 11, 12, lying coaxial to the centre of the lens, filled with black dye.

EFFECT: easy placement and removal, alignment and placing on the eye cornea, reduced injuries, high efficiency when used in different atmospheric conditions.

2 dwg