US 12,330,187 B2
UV-overprotecting iridescent colored contact lenses
Ali Dhinojwala, Akron, OH (US); and Saranshu Singla, Sangruer (IN)
Assigned to The University of Akron, Akron, OH (US)
Filed by The University of Akron, Akron, OH (US)
Filed on Mar. 29, 2021, as Appl. No. 17/215,546.
Claims priority of provisional application 63/032,156, filed on May 29, 2020.
Prior Publication US 2021/0373358 A1, Dec. 2, 2021
Int. Cl. B05D 3/00 (2006.01); B05D 1/00 (2006.01); B05D 1/18 (2006.01); B05D 3/14 (2006.01); C09B 69/10 (2006.01); G02B 5/22 (2006.01); G02B 5/28 (2006.01); G02C 7/04 (2006.01); G02C 7/10 (2006.01)
CPC B05D 3/002 (2013.01) [B05D 1/005 (2013.01); B05D 1/18 (2013.01); B05D 3/144 (2013.01); B05D 3/145 (2013.01); C09B 69/104 (2013.01); G02B 5/223 (2013.01); G02B 5/287 (2013.01); G02C 7/04 (2013.01); G02C 7/107 (2013.01); B05D 2201/00 (2013.01); G02C 2202/16 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An ultra-violet (UV) light protective contact lens comprising:
a translucent lens portion that is sized to fit on the front of an eye; and
a translucent iridescent coating comprising a plurality of alternating low refractive index (RI) and high RI layers adhered to said translucent lens portion;
wherein the difference between the RI of the high RI layers and the low RI layers of said translucent iridescent coating is from about 0.2 to about 0.7;
wherein each of said low RI and high RI layers reflect light in the visible spectrum and said iridescent coating produces one or more iridescent colors by the constructive interference of the light reflected by said low RI and high RI layers, and
wherein one or more of said high RI layers absorbs UV light.