REFLECTOR ARRAY OPTICAL DEVICE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a large-sized reflector array optical device which forms an actual image of an observation object located on one principal surface side, in a space on the other principal surface to enhance brightness of an aerial image.SOLUTION: In the reflector array optical device including a plurality of two-sided corner reflector array optical elements 61 juxtaposed on one plane, each optical element comprises a base 60 and a plurality of two-sided corner reflectors each of which has at least two orthogonal side surfaces 61a and 61b perpendicular to a principal surface of the base and orthogonal to each other and which are formed integrally with the base so that directions of inside corners of the orthogonal side surfaces are uniform. The plurality of optical elements have end surfaces of the bases thereof stuck to each other so that intersections between the orthogonal side surfaces of the plurality of two-sided corner reflectors are parallel to a normal of the bases. A principal surface opposite to the principal surface of the base is subjected to mirror finish.