Patent ID: 7021773

Claim:
An image projection apparatus comprising: a case having a projection opening at a first side; a projection lens contained in said case and projecting an image through the projection opening of said case; an adjuster means having an elevation member, lifting said elevation member from a first position where a lower end of the elevation member does not contact a setting surface of the bottom of said case, through a second position where the lower end of said elevation member contacts the setting surface of said case and raises a first side of said case by using a bottom of said case on a second side facing the first side of said case as a fulcrum and starts generation of an elevation angle, to a third position for further enlarging the elevation angle over that of said second position, and adjusting the elevation angle of said projection lens in accordance with this elevation; a drive control means for controlling the drive of said adjuster means; an opening/closing member located at a front surface of said projection lens for opening or closing said projection opening; and a linkage means operating linked with said adjuster means to move said opening/closing member so as to open said projection opening during a period where said elevation member is moved from said first position to said third position by said drive control means to move said opening/closing member so as to close said projection opening when said elevation member returns from said third position to said first position.