Title:
METAL HALIDE LAMP
Document Type and Number:
Japanese Patent JP3271295
Kind Code:
B2
Abstract:
PURPOSE: To prevent the expansion of a luminous tube, and ensure the long service life of a metal halide lamp used in the form of only the luminous tube without any outer tube.
CONSTITUTION: The section 1b of a quartz luminous tube 1 where an insulation and reflector film 5 is applied, is formed so as to have inner surface tapered nearly straight toward a sealed section at one side. The thickness of the section 1b applied with the film 5 is made thicker than the other section 1a of the tube 1. In addition, electrodes 2 and 2' are laid at both ends of the tube 1 and rare earth metal halogen compound DyI3-NdI3-CsI, HgI2, Hg and Ar are sealed into the tube 1, thereby constituting a metal halide lamp.
Inventors:
Kyoichi Sagaki
Application Number:
JP10522792A
Publication Date:
April 02, 2002
Filing Date:
April 01, 1992
Export Citation:
Assignee:
Iwasaki Electric Co., Ltd.
International Classes:
H01J61/33; H01J61/35; H01J61/52; (IPC1-7): H01J61/33; H01J61/35; H01J61/52
Domestic Patent References:
| JP5283040A | ||||
| JP4242064A | ||||
| JP5144416A | ||||
| JP60200455A | ||||
| JP6070655A | ||||
| JP5283051A | ||||
| JP318579U |
Attorney, Agent or Firm:
Kenji Mogami
Previous Patent: PRODUCTION OF DIMETHYLAMINEBORANE
Next Patent: DEFROSTING OPERATION CONTROLLER FOR REFRIGERATING DEVICE
Next Patent: DEFROSTING OPERATION CONTROLLER FOR REFRIGERATING DEVICE