Title:
HEAT LAMP
Document Type and Number:
Japanese Patent JP2020061296
Kind Code:
A
Abstract:
To provide a heat lamp in which heating uniformity in a heat target region is improved without increasing the size of the heat lamp.SOLUTION: A heat lamp 1 includes an arc tube 10 that is transparent to light, a filament 11 that includes a first winding portion 11a located on the end side of the arc tube 10, and a second winding portion 11b that is located closer to the center of the arc tube 10 than the first winding portion 11a, and is wound at a lower density than the winding density of the first winding portion 11a, and a reflection film 31a formed on a part of the wall surface of the arc tube 10 when viewed from the tube axis direction of the arc tube 10.SELECTED DRAWING: Figure 1A
Inventors:
MIZOJIRI TAKAFUMI
FURUE SATORU
KAWAMURA TADAKAZU
MIWATA SHUHEI
FURUE SATORU
KAWAMURA TADAKAZU
MIWATA SHUHEI
Application Number:
JP2018192583A
Publication Date:
April 16, 2020
Filing Date:
October 11, 2018
Export Citation:
Assignee:
USHIO ELECTRIC INC
International Classes:
H01K1/14; H01K1/32; H01L21/26; H05B3/44
Domestic Patent References:
| JP2006108526A | 2006-04-20 | |||
| JPS5349138U | 1978-04-25 | |||
| JPS6325488U | 1988-02-19 | |||
| JP2010107720A | 2010-05-13 | |||
| JP2007115552A | 2007-05-10 | |||
| JPS63232264A | 1988-09-28 | |||
| JP2007528092A | 2007-10-04 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office