A light tunnel retention and adjustment mechanism for retaining and aligning a light tunnel in a light tunnel assembly. The light tunnel retention and adjustment mechanism includes one or more first compliant spring fingers that interface with the light tunnel along a first surface to provide a compliant spring force for adjusting alignment of the light tunnel in a first axis and fixedly retaining the light tunnel in position in the first axis. The light tunnel retention and adjustment mechanism further includes one or more second compliant spring fingers that interface with the light tunnel along a second surface and provide a compliant spring force for adjusting alignment of the light tunnel in a second axis and fixedly retaining the light tunnel in position in the second axis. The light tunnel retention and adjustment mechanism may be formed as a single piece.
CROSS REFERENCE TO RELATED APPLICATIONS
This application claims priority benefits under 35 U.S.C. .sctn. 119(e) to U.S. Provisional Patent Application No. 60/586,186, filed on Jul. 7, 2004. The entire disclosure of U.S. Provisional Patent Application No. 60/586,186 is incorporated by reference herein in its entirety.
The present invention discloses a device for fastening an integration rod to an inner wall of a housing in a projection optical system and for adjusting a horizontal position and a vertical position of the integration rod corresponding to the inner wall. The fastening/adjusting device includes a frame, a sheath, a first spring, a second spring, a first adjustable screw, and a second adjustable screw. The integration rod is disposed in the sheath, and the sheath is disposed between the frame and the inner wall. The first adjustable screw pushes forward the integration rod, so that the first spring is compressed. The second adjustable screw pushes forward the sheath, so that the second spring is compressed. Therefore, the horizontal and vertical position of the integration rod corresponding to the inner wall can be respectively adjusted by adjusting the first and second adjustable screw.
