Braun tube for a projection television receiver

Details Braun tube for a projection television receiver Braun tube for a projection television receiver

1994-12-19

1997-12-30

Shoap, Allan N.

Receptacles

Envelope for electric lamp or similar device

Partly of conducting material

220 21A, 313461, H01J 2900, H01K 128

Patent

active

057020167

ABSTRACT:
A Braun tube for a projection television receiver in which homogeneity of luminance in the peripheral portion of a screen is obtained by setting the screen width-to-length ratio to 16:9 with the curvature radius of the long side is less than that of the short side when the fluorescent surface is viewed from the outer circumference of a panel so that the main axis of the light incident to the peripheral portion of the screen is refracted more toward the center portion of the screen than the other portion thereof.

REFERENCES:
patent: 4535907 (1985-08-01), Tokita et al.
patent: 4570101 (1986-02-01), Campbell
patent: 4884879 (1989-12-01), Fukuda et al.
patent: 5029993 (1991-07-01), Fukuda et al.
patent: 5107999 (1992-04-01), Canevazzi
patent: 5272540 (1993-12-01), Hirata et al.

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