Cathode ray tube device with improved coolant

Details Cathode ray tube device with improved coolant Cathode ray tube device with improved coolant

1990-10-23

1992-05-19

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Using liquids or fluid flow directing means

313 35, 313 44, 313477R, 313478, 252 79, 25217421, H01J 6152

Patent

active

051151634

ABSTRACT:
A cathode-ray tube device for generating a bright light spot is provided, in the path of radiation, a container with a coolant from the cathode-ray tube containing a solution of about 0.5-2.0% by weight of a surfactant selected from the group consisting of sorbitan esters of fatty acids of 12-18 carbons, polyoxyethylene derivatives thereof and ethers of polyoxyethylene in polyethylene glycol 200-300 all of said container in contact with said solution being formed of polymethyl methacrylate and all surfaces of which container are in contact with said solution are provided with a thin layer of silicon dioxide.

REFERENCES:
patent: 3809152 (1974-05-01), Boehmer
patent: 4360443 (1982-11-01), Durr, Jr.
patent: 4518512 (1985-05-01), Kanamori
patent: 4617490 (1986-10-01), Fitzpatrick et al.
patent: 4699727 (1987-10-01), Dexheimer
patent: 4755716 (1988-07-01), Hayafune et al.
patent: 4767568 (1988-08-01), Abel et al.
patent: 4945282 (1990-07-01), Kawamura et al.

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