| 摘要 |
PROBLEM TO BE SOLVED: To suppress deterioration of a display in a head-up display for projecting display light to a projection member.SOLUTION: In a head-up display 1, display light is emitted in a display part 17, and a concave mirror 15 reflects the display light emitted by the display part 17 and projects the display light to a windshield 21. Also, a drive part 33 is configured to be able to shift the position of the concave mirror 15 between an incident state (the position of the concave mirror 15 shown by a solid line) in which external light can be made incident on the display part 17 and a block state (the position of the concave mirror 15 shown by a broken line) which blocks the external light from being incident on the display part 17. A control part 10 shifts the drive part 33 to the incident state when the display light is projected to the windshield 21, and shifts the drive part 33 to the block state when the display light is not projected to the windshield 21. |
