Projection lens fixation and adjustment mechanism

Details Projection lens fixation and adjustment mechanism Projection lens fixation and adjustment mechanism

2005-11-22

2005-11-22

Mahoney, Christopher (Department: 2851)

Optics: image projectors

Lens support

Lens position adjustable

C359S813000

Reexamination Certificate

active

06966657

ABSTRACT:
A system and method for fixing a projection lens102and adjusting the position of a projection lens102is provided, which is compact and has a high precision. The projection lens102is positioned on a base plate104. The position of the projection lens can be adjusted by providing possibilities for horizontal and vertical shift in a plane perpendicular to the optical axis of the projection lens102. This is performed by actuating three points of the base plate104. Furthermore, by providing further shifting means at the three points of the base plate104, tilting of the projection lens can be performed, thus providing Scheimpflug correction. In this way, motion of the projection lens in five degrees of freedom is provided by actuating three points at a base plate104whereon a projection lens102can be easily mounted and removed.

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