Douglas H Pederson

US Patent:

20070076171, Apr 5, 2007

Filed:

Sep 20, 2005

Appl. No.:

11/231206

Inventors:

Donald Fasen - Boise ID, US
Anurag Gupta - Corvallis OR, US
Michael Long - Portland OR, US
Matthew Smith - Albany OR, US
Christopher Neel - Ann Arbor MI, US
Douglas Pederson - Corvallis OR, US

International Classification:

G03B 21/26

US Classification:

353030000

Abstract:

A wobulator position sensing system includes a wobulator plate, having a wobulator window, and a position detector, associated with the wobulator plate. The wobulator is disposed along an image projection path, and configured to selectively tilt so as to shift the projection path. The position detector is configured to sense a magnitude of tilting of the wobulator plate, and to produce a feedback signal useable to control tilting of the wobulator plate.