| 摘要 |
Provided is a headup display device capable of projecting a virtual image onto a curved surface. A headup display device (100) comprises: a display means (5) for emitting display light (L) representing an image; a pair of parallel flat mirrors (40) comprising a parallel arrangement of a flat semi-transparent mirror (41) and a flat mirror (42), said flat semi-transparent mirror (41) receiving the display light (L) emitted from the display means (5) and reflecting a part of the display light (L) while transmitting the other part of the display light, and said flat mirror (42) reflecting the display light (L) toward the flat semi-transparent mirror (41); and a curved mirror (50) for projecting an image represented by the display light (L) onto a curved surface as a virtual image by reflecting the display light (L) transmitted through the flat semi-transparent mirror (41) onto the curved surface. The curved mirror (50) has a curved surface shape such that when display light (L) transmitted through the flat semi-transparent mirror (41) and parallel to a first plane is reflected by the curved mirror (50) and the curved surface in that order, the reflected display light (L) becomes display light (L) representing a virtual image parallel to a second plane. |
