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:
Jul. 16, 2002
Filed:
Dec. 30, 1998
Stephen W. Fleetwood, Knoxville, TN (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An apparatus for checking the alignment of a projection lens assembly includes a base for mounting the apparatus on the projection lens assembly, a gimbal system having a bottom section mounted to the base and a top section, the gimbal system having position adjusters for adjusting the position of the bottom section in two orthogonal direction with respect to the base, and having tilt adjusters for angularly adjusting a plane of the top section with a plane of the base, and a laser generator mounted on the top section. The position adjusters and the tilt adjusters are used to position a laser beam to be emitted by the laser generation to be coaxial with a central axis of the projection lens assembly. When the laser generator is then energized, the laser beam forms a visible red dot on the rear projection screen and, using simple measurements, an operator is able to verify the alignment of the projection lens assembly in the rear projection television receiver.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile