摘要 |
PROBLEM TO BE SOLVED: To provide a head-up display device, displaying an image in a wide area by widely securing the area of a holographic optical system, and widely securing a visible area of an observer. SOLUTION: This head-up display device includes: a holographic optical system 20 disposed opposite to an observing position; and a projector part 10 for projecting a video on the holographic optical system 20 and forming an observation image at the observing position, wherein the holographic optical system 20 is formed by partly sticking a plurality of holographic elements 20a, 20b to each other. COPYRIGHT: (C)2011,JPO&INPIT
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