Discharge lamp with specific fill and luminescent layers

Details Discharge lamp with specific fill and luminescent layers Discharge lamp with specific fill and luminescent layers

1998-06-03

2000-05-09

Patel, Vip

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313635, H01J 6120

Patent

active

060608315

ABSTRACT:
A discharge lamp is provided with a tubular discharge vessel having an internal diameter of at most 5 mm, with a luminescent screen, and with a filling which comprises mercury and a rare gas. The rare gas comprises more than 98 mole % neon, and the luminescent screen comprises a first group and a second group of luminescent substances, which first group comprises luminescent substances for converting UV radiation generated by mercury into visible light, and which second group comprises luminescent substances for converting the UV radiation generated by neon into visible light. The discharge lamp has a comparatively high luminous flux immediately after ignition even in cold surroundings.

REFERENCES:
patent: 4559470 (1985-12-01), Murakami et al.
patent: 4800319 (1989-01-01), Van Kemenade et al.
patent: 5387837 (1995-02-01), Roelevink et al.
patent: 5825125 (1998-10-01), Ligthart et al.

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