Abstract: 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.

Abstract: The present invention provides a projector assembly including a projection device adapted to project an image, and a user-interface in communication with the projection device. The user-interface may be adapted to privately present user-readable information to a user.