H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/30 (2006.01) F21S 8/12 (2006.01) F21V 11/00 (2006.01) H01J 9/20 (2006.01) H01J 9/24 (2006.01) H01J 9/34 (2006.01) H01J 61/02 (2006.01) H01J 61/34 (2006.01) H01J 61/35 (2006.01) H01J 61/82 (2006.01)
Patent
CA 2495852
The invention relates to a high-pressure discharge lamp, in particular a mercury-free high-pressure discharge lamp for a vehicle headlight, having a lamp base (1) and an axially symmetrical discharge vessel (30), in whose discharge space (300) an ionizable filling, containing metal halides, and electrodes (31, 32) are arranged for producing a gas discharge. According to the invention, the discharge vessel (30) is provided with transparent, partial frosting (37), which is limited to a section of the inside or outside of the discharge vessel (30) extending over part of the discharge vessel circumference, this section having a well-defined position with respect to the lamp base (1). Moreover, a simple production method is proposed for partial frosting (37) which is preferably arranged on the inside of the discharge vessel (30).
Hoegele Vladimir
Reiners Thomas
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
LandOfFree
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