| http://www.w3.org/ns/prov#value | - An optical apparatus according to claim 8, wherein the relationship between a thickness t1 of a transparent substrate used as said plane plate member and a thickness t2 of a transparent substrate of said polarizing and splitting means satisfy the following condition: ##EQU21## wherein n1 is a refractive index of said plane plate members, n1 ' is a refractive index of a medium of said plane plate m
|
