Electric lamp and discharge devices – With gas or vapor – Having specified electrode spacing
Patent
1997-10-30
1999-11-16
Day, Michael
Electric lamp and discharge devices
With gas or vapor
Having specified electrode spacing
313621, H01J 1706
Patent
active
059864028
ABSTRACT:
A metal halide lamp with a distance of less than 3.0 mm between the electrodes, in which in the hermetically sealed portion no cracks occur, which can be produced without difficulty, and which enables advantageous operation is achieved with a halide lamp in which an arc tube made of quartz glass contains a cathode and an anode spaced from each other at a distance of less than or equal to 2.9 mm together with mercury and metal halides, and which is operated with a nominal wattage range of from 100 to 400 W using direct current, by causing the ratio D/H to be greater than or equal to 1.9 when D is the maximum inside diameter in millimeters in a direction which orthogonally intersects the axial direction of the electrodes in the discharge space and H is the length of the cathode projecting within the discharge space, also in millimeters.
REFERENCES:
patent: 5239230 (1993-08-01), Mathews et al.
patent: 5723944 (1998-03-01), Higashi et al.
Horikawa Yoshihiro
Igarashi Tatsushi
Ito Takashi
Narita Mitsuo
Sugitani Akihiko
Day Michael
Safran David S.
Ushiodenki Kabushiki Kaisha
LandOfFree
Metal halide lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal halide lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal halide lamp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1328653