Cathode ray tube including a funnel with a non-circular...

Details Cathode ray tube including a funnel with a non-circular... Cathode ray tube including a funnel with a non-circular...

2006-08-29

2006-08-29

Santiago, Mariceli D. (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C220S00210R, C220S002200, C220S00210A

Reexamination Certificate

active

07098585

ABSTRACT:
A cathode ray tube includes a panel, a funnel and a funnel yoke portion having a non-circular-shaped vertical section. When a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td and a long side portion thickness at the same vertical section is Th, a glass structure of a cathode ray tube satisfies 0.5<Th/Td<1.01. When a diagonal portion thickness at a top round is Dt′, a long side portion thickness is DS′, a short side portion thickness is DL′, a diagonal portion thickness at a reference line is Dt, a long side portion thickness is DS, and a short side portion thickness is DL, then the glass structure of a cathode ray tube satisfies 1.3≦Dt′/Dt<1.80.

REFERENCES:
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patent: 2000-149826 (2000-05-01), None
patent: 2002063858 (2002-02-01), None

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