OPTICAL BODY, OPTICAL BODY MANUFACTURING METHOD, WINDOW MEMBER, AND OPTICAL BODY ATTACHING METHOD

摘要

An optical body including an optical layer having a belt-like or rectangular shape and having an incident surface on which light is incident, and a reflective layer formed in the optical layer and having a corner cube shape, wherein the reflective layer directionally reflects the light incident on the incident surface at an incident angle (&thetas;, &phgr;), and a direction of a ridge of the corner cube shape is substantially parallel to a lengthwise direction of the belt-shaped or rectangular optical layer. &thetas; is an angle formed by a perpendicular line with respect to the incident surface and the incident light incident on the incident surface or reflected light emerging from the incident surface, and &phgr; is an angle formed by the ridge of the corner cube shape and a component resulting from projecting the incident light or the reflected light to the incident surface).