Patent ID: 7532175

Claim:
A head-up display device comprising: a display unit for displaying information; frame members fixed on a vehicle body; a reflector disposed in a holder and supported rotatably by the frame members for rotating in a rotational direction, relative to the frame members; an adjuster for adjusting a rotational position of the reflector by a gearing system; and a regulator to allow the reflector to shift in the rotational direction solely in a rotating range where the rotational position of the reflector is adjustable by the adjuster, and to prevent the reflector from shifting, relative to the frame members, in a direction other than the rotational direction, whereby said adjuster so adjusts the rotational position of the reflector as to allow the reflector to reflect the information from the display unit toward a projection area on a windshield of a vehicle, and to allow a vehicle driver to see both a front view through the windshield and a superimposed reflected image of the information, and wherein said regulator includes a holder sliding part mounted on the holder, that continuously contacts and slides on a case sliding part formed on the frame members.