A diffractive contact lens in relief includes a smoothing layer (50) of optically transparent material having a smooth outside surface (51) and placed over the optical surface (16) in relief so as to immerse the relief.
申请公布号
US5104212(A)
申请公布日期
1992.04.14
申请号
US19890431489
申请日期
1989.11.03
申请人
ESSILOR INTERNATIONAL-COMPAGNIE GENERALE D'OPTIQUE
