Cathode ray tube coupler with grounding ribbs
AssigneesSony Corporation, Sony Electronics Inc.
InventorJohn J. Florek
Life of this patent
Estimating the term…
Abstract
A coupler for coupling a projection lens to a cathode ray tube consists of a metallic plate having a first side and a second side, the first side for mounting to the faceplate of the cathode ray tube in a fluid tight relationship and the second side for mounting to a lens plate. The metallic plate is covered with a non-reflective coating and has at least one through hole for mounting to CRT rails. A plurality of ribbs protrude from the second side of the metallic plate from at least one of the at least one through holes and the ribbs surround the through hole. Upon mounting of a fastening device in the at least one through hole, the fastening device comes into contact with a top surface of the ribbs and the non-reflective coating is removed from the ribbs, thereby forming a ground connection for the coupler.
Claims22
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.
A projection television assembly comprising:
- a CRT having a faceplate at an end of the CRT on which an image is displayed;
- a coupler having a first side and a second side, the first side fixed to the faceplate of said CRT;
- and
- a lens having a lens plate fixed to the second side of said coupler;
- wherein said coupler is covered with a non-reflective coating and has at least one through hole for mounting to CRT rails, and
- further wherein a plurality of ribbs protrude from the second side of said coupler at said at least one through hole and said ribbs surround said through hole, and
- further 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 to the projection television assembly.
Dependencies are inferred from the claim text.