Document Type and Number:
Japanese Patent JPH0156495
Kind Code:
B2
Abstract:
A cooling system for a projection television receiver, the receiver having at least one cathode ray tube with a face thereon, comprising a lens for focusing light exiting from the tube; a frame supporting the lens in alignment with the face of the tube for defining a cooling chamber between the lens and the face with a fluid therein; and seals for sealing the tube and the lens to the frame in a fluid-tight manner and essentially preventing gas from the fluid sealed in the chamber from exiting the chamber. The seals are preferably of a material which is essentially, impermeable to the passage of the gas, such as co-vulcanized ethylene propylene rubber and polydimethyle siloxane.
Inventors:
HASEGAWA SHINICHI
Application Number:
JP17265385A
Publication Date:
November 30, 1989
Filing Date:
August 06, 1985
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
International Classes:
H01J31/10; B29D99/00; H01J7/26; H01J29/00
Next Patent: JPH0156496