Title:
TUNGSTEN HALOGEN LAMP FOR HEADLIGHT
Document Type and Number:
Japanese Patent JP2978747
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve cost reduction without complicating the constitution of a headlight.
SOLUTION: Since a tungsten halogen lamp 1 for a headlight is formed in such a way that a lead 7 for a position is introduced into a bulb 2, and a filament 8 for a position is installed between the lead 7 for a position and a common lead 3c, and a sealing halogen quantity in the bulb 2 is set in 1.70 to 2.84×10-4 mol/ml, the filament 8 for a position can be installed in a bulb of an H4 type tungsten halogen lamp being impossible so far without causing the possibility of disconnection or the like in its early stages, and constitutional complication of the headlight can be eliminated.
Inventors:
KAWACHI TAKESHI
YOSHIDA TATSUMI
FURUTA NAOTO
YOSHIDA TATSUMI
FURUTA NAOTO
Application Number:
JP29724895A
Publication Date:
November 15, 1999
Filing Date:
October 23, 1995
Export Citation:
Assignee:
SUTANREE DENKI KK
International Classes:
F21S8/10; F21V14/02; H01K1/14; H01K1/40; H01K1/50; H01K9/08; (IPC1-7): H01K9/08; H01K1/40; H01K1/50
Domestic Patent References:
| JP729551A | ||||
| JP3219548A | ||||
| JP57195756U |
Attorney, Agent or Firm:
Akimoto Teruo
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