OPTICAL PLATE, AERIAL IMAGE DISPLAY DEVICE, AERIAL IMAGE DISPLAY APPARATUS, METHOD FOR MANUFACTURING OPTICAL PLATE AND METHOD FOR MANUFACTURING AERIAL IMAGE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress reduction in the luminous energy due to incident of light on an end face of an adhesive layer of the flat plate on a joint interface of a plurality of flat plates constituting a single-layer optical plate.SOLUTION: An optical plate 80 includes flat plates 70A, 70B. Each flat plate 70A, 70Bhas a repeated structure G comprising a transparent member, a mirror 52 and an adhesive layer 53, and is connected to the other by joining end faces of the plates where the repeated structure G is exposed. A first flat plate 70P (flat plate 70B), which is located upstream with respect to a joint interface BF in an observation direction in a plan view upon observing an image, is connected to a second flat plate 70Q (flat plate 70A) in such a manner that at least one first mirror 52P is relatively deviated from a position Eon the same plane of the second mirror 52Q along the joint interface BF to be closer to the upstream in the observation direction in a plan view.SELECTED DRAWING: Figure 18