Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1991-01-08
1992-08-11
Yusko, Donald J.
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
313631, 313634, H01J 6134
Patent
active
051382180
ABSTRACT:
A metal vapor discharge lamp has a small arc tube of a single end type. The maximum and minimum thicknesses of the wall of the arc tube and the ratio of the minimum thickness to the maximum thickness are set to the values in predetermined ranges. The set thicknesses prevents breakage of the arc tube and deterioration of the lamp characteristics.
REFERENCES:
patent: 4620130 (1986-10-01), Keeffe et al.
patent: 4717852 (1988-01-01), Dobrusskin et al.
patent: 4945288 (1990-07-01), Morris et al.
Honda Kazuo
Matsuura Atsushi
Mori Yasuki
Sano Hisanori
Giust John
Toshiba Lighting and Technology Corporation
Yusko Donald J.
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