Electric lamp and discharge devices – With temperature modifier – Having heat conducting path
Patent
1995-09-15
1999-05-11
O'Shea, Sandra L.
Electric lamp and discharge devices
With temperature modifier
Having heat conducting path
313113, 313634, H01J1/02
Patent
active
059030887
ABSTRACT:
A short arc lamp which has a lamp body in which a concave space is formed, a base plate which is located in a rear part of this body, a transparent part which is located in a front opening of the lamp body, with a frame part in its vicinity, and which hermetically encloses the concave space, and a pair of electrodes forming an arc gap in the concave space. The frame part is connected to a circular conductive ring which is provided with the roughly square cross section and is connected to the lamp body. At least a front side of the circular conductive ring is exposed to the ambient environment. A gap is formed between the frame part and the circular conductive ring. The frame part extends more to the front than the circular conductive ring, and on the exposed surface of the circular conductive ring and on a side of the projecting part of the frame part, step-like projections are formed.
REFERENCES:
patent: 3715613 (1973-02-01), Parkman
patent: 3725714 (1973-04-01), Anderson
patent: 4179037 (1979-12-01), Chan et al.
patent: 4633128 (1986-12-01), Roberts et al.
patent: 4658179 (1987-04-01), Roberts
patent: 5399931 (1995-03-01), Roberts
Kai Kenzo
Sugitani Akihiko
Takahashi Masanori
Tanaka Hideo
O'Shea Sandra L.
Patel Vip
Safran David S.
Ushiodenki Kabushiki Kaisha
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