The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2014
Filed:
Apr. 19, 2012
Terrence Carl Schmidt, Wellesley, CA;
Terrence Carl Schmidt, Wellesley, CA;
Christie Digital Systems USA, Inc., Cypress, CA (US);
Abstract
A mirror actuator system is provided for aligning images projected onto a curved screen by dual projectors. According to a preferred embodiment, a unique screw mechanism is provided for selectively slightly warping the mirror. The screw mechanism includes a load spreader in contact with the mirror, having a groove for receiving an screw actuator for applying positive or negative pressure to the load spreader and thereby to a local area (i.e. zone) of the mirror. The actuator system of the present invention provides low cost static pressure adjustment to the mirror for maintaining the focus quality while locally modifying the geometric 'aim' of the mirror. The groove in the load spreader provides tolerance to prevent thermal coefficient of expansion (TCE) distortion.