Index matching transparent film and cell using index matching transparent film

摘要

PROBLEM TO BE SOLVED: To execute lamination more easily than hitherto when laminating each optical part, such as lamination between a transparent substrate having a metal thin film fixed thereon and a prism, or the like. SOLUTION: The transparent substrate 107 and the prism 104 are laminated by a transparent adhesive film 108 having a refractive index matched by adding a plasticizer to polyvinyl chloride.