Patent ID: 7370976

Claim:
A projection type image display device, comprising: a reflecting mirror provided at a prescribed inclination angle with respect to the installation surface of a projector to reflect an image output from the projector onto a screen; flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of the reflecting mirror, thereby moving up and down the central part of the first side to correct the flexure of the reflecting mirror; torsion correcting means for operating to rotate a second eccentric cam or/and a third eccentric cam provided at respective ends of a second side opposed to said first side of the reflecting mirror, thereby moving up and down both ends of said second side of the reflecting mirror to correct the torsion of the reflecting mirror; and a rotation operation portion provided at each of extended ends of camshafts provided at the eccentric cams to correct the flexure and torsion of the reflecting mirror.