Patent ID: 9638843
Date: 2017-05-02
CPC Classifications: G02B

Claim:
1. A method for manufacturing a reflector array optical device, the optical device allowing a real image of an object being observed that is disposed toward one side of a principal plane to be formed in a space toward the other side of the principal plane, the method comprising: a step of forming at least two dihedral corner reflector array optical elements, the dihedral corner reflector array optical element including a substrate and a plurality of dihedral corner reflectors which each have at least two orthogonal side faces, the orthogonal side faces being perpendicular to a principal surface of the substrate and orthogonal to each other, and being integrated with the substrate so that orientations of interior angles of the orthogonal side faces are aligned with each other; a step of covering, with a masking material, the plurality of dihedral corner reflectors on the principal surface of the substrate adjacent to an end face of the substrate of each of the two dihedral corner reflector array optical elements, which are to be adhered to each other; a step of bonding together the two dihedral corner reflector array optical elements while an adhesive is being supplied between the end faces of the substrates to be adhered to each other so as to extrude part of the adhesive between the end faces of the substrates from a surface of the masking material; and a step of removing the masking material from the plurality of dihedral corner reflectors on the principal surfaces of the substrates in conjunction with part of the adhesive.