Patent ID: 6696776
Filing Date: 2004-02-24
Classification: H01J,H04N

Abstract:
A coupler for coupling a projection lens to a cathode ray tube, the coupler comprising:a metallic plate having a first side and a second side, said first side for mounting to the faceplate of the cathode ray tube in a fluid tight relationship, and said second side for mounting to a lens plate, wherein said metallic plate is covered with a non-reflective coating and has at least one through hole for mounting to CRT rails; and a plurality of ribbs protruding from the second side of said metallic plate at said at least one through hole, said ribbs surrounding said through hole, wherein upon mounting of a fastening device in said at least one through hole, said fastening device comes into contact with a top surface of said ribbs and the non-reflective coating is removed from said ribbs, thereby forming a ground connection for the coupler.