Patent ID: 6930836

Claim:
A head-up display device comprising: a display element which is attached inside a housing and emits a specific image displaying light; a retractable reflector pivoted on a part of the housing, the reflector taking a standing-up condition on which the reflector protrudes from an aperture formed on an upper surface of the housing to the outside of the housing or, alternatively, a falling-down condition on which the reflector is received inside the housing, on the standing-up condition the reflector changing a light path of the image displaying light that has passed through the aperture, thereby providing a final image information formed on the basis of the image displaying light to a specific eye range; and a cover having a shape equivalent to that of the aperture, the cover being attached on an upper surface of the reflector and sliding on the upper surface of the reflector cooperating with a retractable motion of the reflector, and the cover closing the aperture on the falling-down condition of the reflector while the cover opens the aperture on the standing-up condition of the reflector, thereby performing the opening and closing action of the aperture.