Patent ID: 11898076
Assignee: LARGAN MEDICAL CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. A contact lens, comprising:
at least one color changeable region, wherein the color changeable region comprises at least one photoluminescence material;
wherein a weight percentage of the photoluminescence material in the contact lens is WP, an average transmittance in a wavelength range of 400 nm-700 nm of the color changeable region is T4070, an average transmittance in a wavelength range of 280 nm-400 nm of the color changeable region is T2840, and the following conditions are satisfied:

0.01%≤WP; 

85%≤T4070; and

T2840≤20%.