Title:
自動車用放電バルブおよび自動車前照灯
Document Type and Number:
Japanese Patent JP4229437
Kind Code:
B2
Abstract:
An automotive discharge bulb having a light emitting tube includes a ceramic tube with paired electrodes oppositely placed, and contains a light emitting material and starting rare gas. A transversal section of the ceramic tube is longitudinally elongated. In the ceramic tube having a longitudinally elongated transversal section, an arc generated into an upwardly convex shape and the tube wall do not make contact.
Inventors:
Toshiaki Tsuda
Masao Kinoshita
Masao Kinoshita
Application Number:
JP2003161016A
Publication Date:
February 25, 2009
Filing Date:
June 05, 2003
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
F21S8/10; F21S8/12; F21V13/00; H01J7/24; H01J17/20; H01J61/26; H01J61/30; H01J61/33; H01J61/34; H01J61/82; H01K1/58; F21W101/10; F21Y101/00
Domestic Patent References:
| JP2001076677A | ||||
| JP50034870B1 | ||||
| JP2002298780A |
Foreign References:
| US4001623 | ||||
| US3885181 |
Attorney, Agent or Firm:
Hideto Yagi
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