Régis Y.N.R Gengler,Theophilus T. Bogaert,Tjeerd Zuidema,Hendrik H. Bekkering
申请号：
US16265549
公开号：
US20190231517A1
申请日:
2019.02.01
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A lens including a posterior surface, an anterior surface, and at least one identification marking on the lens. The at least one identification marking exhibits a first degree of visibility in an ambient lighting condition and a second degree of visibility greater than the first degree of visibility in a lighting condition different than the ambient lighting condition.
