| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-transmissive substrate which can be prevented from flawing or cracking, and a light transmission type optical member. <P>SOLUTION: A Fresnel lens sheet 110 comprises a glass substrate 10, a Fresnel lens film 11 arranged on a light projection surface side of the glass substrate 100, a functional film 12 arranged on a light incidence side of the glass substrate 10, a black tape 50, etc. The black tape 50 is capable of preventing a covered portion from flawing, and provided covering an end portion of the glass substrate 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
