Liquid-cooling type cathode-ray tube with light shielding member

Details Liquid-cooling type cathode-ray tube with light shielding member Liquid-cooling type cathode-ray tube with light shielding member

1997-11-19

2000-07-25

Day, Michael H.

Electric lamp and discharge devices

With temperature modifier

Using liquids or fluid flow directing means

313 44, 348749, H01J 724

Patent

active

060939982

ABSTRACT:
There can be avoided a contrast degradation caused by stray light generated from a liquid-cooling type cathode-ray tube apparatus incorporated in a projection type television apparatus. Stray light (7) emitted from a flange (peripheral edge) (11a) of a lens (11) out of a coupler (10) and the lens (11) disposed on the front face of a CRT 1 of a liquid-cooling type cathode-ray tube apparatus 5 is shield by light shielding members (ribs) (20), (20a) disposed in the coupler (10) and/or a lens plate (13).

REFERENCES:
patent: 4405949 (1983-09-01), Hockenbroch et al.
patent: 4737678 (1988-04-01), Hasegawa
patent: 4777532 (1988-10-01), Hasegawa
patent: 4780640 (1988-10-01), Hasegawa
patent: 5644278 (1997-07-01), Takezawa

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