Projection television receiver with liquid-cooled lens

Details Projection television receiver with liquid-cooled lens Projection television receiver with liquid-cooled lens

1986-08-05

1988-02-16

Moore, David K.

Electric lamp and discharge devices

With temperature modifier

Using liquids or fluid flow directing means

313 44, 313477R, 358250, H01J 2986, H01J 726

Patent

active

047257555

ABSTRACT:
A projection television receiver comprises at least one cathode ray tube for receiving video signals and projecting images therefrom, the tube including a face; a lens mounted adjacent to the face for focusing the images projected by the tube; and a coolant disposed between the lens and the face for absorbing and dissipating heat from the tube, the lens and the coolant having substantially the same refractive index for reducing reflection. The coolant may be a mixture of glycerol and ethylene glycol including about 20 to about 40% by weight of glycerol.

REFERENCES:
patent: 4511927 (1985-04-01), Bauer
patent: 4529905 (1985-07-01), Ohkoshi et al.
patent: 4572984 (1986-02-01), Fitzpatrick

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