HEAD-UP DISPLAY APPARATUS

A head-up display apparatus projects a virtual image to be perceived by a user onto a virtual image display part provided in front of the user. The head-up display apparatus includes a display light emitting unit and a display light reflection unit. The display light emitting unit emits display light. The display light reflection unit reflects the display light and emits the reflected display light. The display light reflection unit includes a mirror part having a concave shape and a transmissive-type volume hologram part provided on a surface of the mirror part.