Electric lamp and discharge devices – With gas or vapor – With particular gas or vapor
Patent
1992-11-19
1995-02-28
Yusko, Donald J.
Electric lamp and discharge devices
With gas or vapor
With particular gas or vapor
313638, 313641, H01J 6118, H01J 6120
Patent
active
053940598
ABSTRACT:
In a metallic vapor discharge lamp, in whose arc tube provided with electrodes are encapsulated together with mercury and inert gas, whose quantity is adequate for maintaining arc discharges, an adequate quantity of iron and an adequate quantity of a metal, in which at least one of the metals tin, magnesium, bismuth, thallium, cadmium or manganese is selected, together with halogen, as a result of the fact that the encapsulated halogen at least contains bromine, whose weight ratio to the total halogen is 0.26%, the adhesion of iron to the inside of the arc tube is prevented and consequently a radiation intensity of the ultraviolet rays effective for curing paints or inks is maintained over a long period of time.
REFERENCES:
patent: 4243906 (1981-01-01), Wilson
patent: 4745335 (1988-05-01), Ohyama et al.
patent: 4769576 (1988-09-01), Ohyama et al.
patent: 5107178 (1992-04-01), Ohyama et al.
Patent Astracts of Japan, The Patent Office, Japanese Govt., vol. 13, No. 374 (E-808) [3722], dt. Aug. 18, 1989.
Patent Abstracts of Japan, The Patent Office, Japanese Govt., vol. 13, No. 433 (E-824) [3781] dt. Sep. 27, 1989.
Fuse Tetsuo
Mori Kazuyuki
Ohyama Masachika
Sakai Motohiro
Oshiodenki Kabushiki Kaisha
Patel Vip
Yusko Donald J.
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