REFLECTOR WITH WIDE OBSERVATION ANGLE

摘要

PROBLEM TO BE SOLVED: To provide a reflector with wide observation angle in which the direction of the effective reflected light can extremely easily be controlled in a specified observation angle range while the wide observation angle property is maintained and which is especially effective as constitutional parts of a brightly visible image display sheet. SOLUTION: The reflector with wide observation angle is provided with base layer having the top face and the back face surface and a plurality of minute convex mirrors arranged adjacently to each other on the top face of the base layer and having convex faces where a first reflection film is adhered. In this reflector, a plurality of minute concave mirrors having concave faces recessing from the top face to the back face of the base layer and having a second reflection film adhered to the concave faces are arranged on the base layer in such a manner that the minute concave mirror is arranged between the minute convex mirrors adjacent to each other.