Patent ID: 6115082
Filing Date: 2000-09-05
Classification: H01J,H04N

Abstract:
A coupler system for coupling a projection lens to a cathode ray tube, wherein the cathode ray tube has a faceplate which is cooled by a coupler fluid which comprises a mixture of ethylene glycol and glycerin, said system comprising:(a) a first member for mounting to the faceplate of the cathode ray tube in a fluid tight relationship, said first member(i) defining a fluid receiving space for receiving the coupler fluid; and(ii) being composed of a plastic material which is resistant to heat and to exposure to said coupler fluid comprising a mixture of ethylene glycol and glycerin;(b) means for mounting a projection lens or a component thereof to the first member in a fluid tight relationship so as to seal the fluid receiving space of the first member;and(c) a second member for mounting to the faceplate in a heat transferring relationship, said second member being composed of a metallic material;wherein the first member comes into contact with the coupler fluid and the second member does not come into contact with the coupler fluid during use of the coupler system.