Title:
FILAMENT LAMP
Document Type and Number:
Japanese Patent JP2015187959
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a filament lamp that can suppress occurrence of wire breaking in a filament portion.SOLUTION: A filament lamp comprises: a bulb; a pair of lead parts each having a holding portion containing one kind of element selected from the group consisting of nickel (Ni), carbon (C), copper (Cu) and aluminum (Al), and an introducing portion which is joined to one end portion of the holding portion and formed of a Dumet wire; a filament part having a pair of leg portions which are held at the end portions at the opposite sides to joint sides of the pair of holding portions to which the introducing portions are joined; barrier layers which are provided between the pair of leg portions and the end portions of the pair of holding portions and includes a material which is difficult to react with the material of the holding portions or a material having a higher melting point than the material of the holding portions; and a sealing part that seals one end portion of the bulb and holds the pair of introducing portions.
More Like This:
| JPS62184735 | DUMET WIRE |
| WO/2013/086719 | EFFICIENT HALOGEN TUNGSTEN BULB WITH HIGH LIGHT EFFICIENCY |
Inventors:
MATSUDA HIDESHI
MATSUNAGA HIROYUKI
SHIOZAKI MITSURU
NINOMIYA TORU
TANAKA YUKIO
MATSUNAGA HIROYUKI
SHIOZAKI MITSURU
NINOMIYA TORU
TANAKA YUKIO
Application Number:
JP2014065333A
Publication Date:
October 29, 2015
Filing Date:
March 27, 2014
Export Citation:
Assignee:
TOSHIBA LIGHTING & TECHNOLOGY
International Classes:
H01K1/20; H01K1/40; H01K3/00
Attorney, Agent or Firm:
Masahiko Hinataji
Junichi Kozaki
Hiroshi Ichikawa
Junichi Kozaki
Hiroshi Ichikawa