| 摘要 |
PROBLEM TO BE SOLVED: To improve visibility of displayed images by reducing field curvature caused by a shape of a windshield and an optical system of an HUD device.SOLUTION: An in-vehicle projection display device (100) includes; a projection unit (projector 11) that projects light for forming a display image on a display surface such as a vehicle windshield or the like; an optical system (concave mirror 30) that guides the light projected from the projection unit to the display surface; and an intermediate image forming optical member (20) that forms an intermediate image (20A), whose shape is at least partially curved, by using the light projected from the projection unit and introduces light emitted from the intermediate image to the optical system (30). |
