Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1988-05-23
1989-02-07
DeMeo, Palmer C.
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313117, 313635, 350345, H01J 6142, H01J 6135, G02F 113
Patent
active
048033995
ABSTRACT:
Disclosed is a fluorescent lamp arrangement for uniformly illuminating a display panel wherein a fluorescent lamp having a glass tube is provided with electrodes at opposite sides thereof, a fluorescent layer is formed over an inner surface of the glass tube, and mercury and a rare gas are sealed in the glass tube; and a light-shading patterned layer is formed along a surface of the glass tube so as to make luminance on a display panel substantially uniform when the fluorescent lamp and the display panel are parallelly disposed to a plane which includes a longitudinal axis of the glass tube.
REFERENCES:
patent: 2260473 (1941-10-01), Minchillo
patent: 4001628 (1977-01-01), Ryan
patent: 4206501 (1980-06-01), Brooks
patent: 4267489 (1981-05-01), Morohashi
patent: 4335421 (1982-06-01), Modia et al.
patent: 4432044 (1984-02-01), Lautzenheiser
patent: 4502761 (1985-03-01), Knoll et al.
Ogawa Soichiro
Sano Toshihiko
DeMeo Palmer C.
Hitachi , Ltd.
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