Title:
フィラメントランプおよびチップ管残部の成形方法
Document Type and Number:
Japanese Patent JP7037722
Kind Code:
B2
Abstract:
The utility model provides an incandescent lamp which is provided with a lamp filament in a light-emitting tube and a core tube residual part on the outer surface of the light-emitting tube. And a structure that suppresses the amount of protrusion of the core tube remaining portion from the outer surface of the light-emitting tube, reduces the size of the heating roller into which the lamp is inserted, and suppresses local deterioration of the light distribution (heat distribution) of light from the light-emitting tube in the axial direction and in the circumferential direction. The light-emitting diode is characterized in that the residual part of the core tube is in a flat curved surface shape along the outer surface of the light-emitting tube in the circumferential direction.
Inventors:
Kazuyuki Ikushima
Katsutomi Matsubara
Mizowaki Katsunori
Kazuhiro Akiyama
Katsutomi Matsubara
Mizowaki Katsunori
Kazuhiro Akiyama
Application Number:
JP2017250974A
Publication Date:
March 17, 2022
Filing Date:
December 27, 2017
Export Citation:
Assignee:
Ushio, Inc.
International Classes:
H01K3/26; H01K1/36
Domestic Patent References:
| JP2015050139A | ||||
| JP2009200036A | ||||
| JP2013145764A |
Foreign References:
| US20090190343 |
Attorney, Agent or Firm:
Tsutomu Igarata
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