Title:
ヒータ
Document Type and Number:
Japanese Patent JP6816587
Kind Code:
B2
Abstract:
A heater (10) of an embodiment includes a light-emitting tube (2) and a multilayer film (1) formed on an outer surface of the light-emitting tube (2). The multilayer film (1) is formed by alternately stacking a low-refractive index film (3) and a high-refractive index film (4), and the film thickness of the low-refractive index film (3') farthest from the light-emitting tube (2) is 2.0 times or more the film thicknesses of the other low-refractive index films (3), and the film thickness of the high-refractive index film (4') closest to the light-emitting tube (2) is equal to or larger than the film thicknesses of the other high-refractive index films (4).
Inventors:
Shinjiro Aono
Masaaki Takatsuka
Shuhei Abe
Masaaki Takatsuka
Shuhei Abe
Application Number:
JP2017053076A
Publication Date:
January 20, 2021
Filing Date:
March 17, 2017
Export Citation:
Assignee:
Toshiba Lighting & Technology Corporation
International Classes:
H05B3/44; H01K1/32
Domestic Patent References:
| JP2015185442A | ||||
| JP2006119612A | ||||
| JP2010243689A | ||||
| JP2006523366A | ||||
| JP2010061876A | ||||
| JP2015222309A |
Foreign References:
| US5627426 |
Attorney, Agent or Firm:
Sakai International Patent Office