Title:
吸収フィルタおよび干渉フィルタを有する白熱ランプ
Document Type and Number:
Japanese Patent JP2008520068
Kind Code:
A
Abstract:
The invention relates to an incandescent lamp for producing light in a red region of the spectrum, comprising: a translucent lamp bulb ( 4 ); a spiral-wound filament enclosed by the lamp bulb, and; an interference filter ( 8 ), which is placed on the lamp bulb and which has a number of optically low refractive layers and optically highly refractive layers. According to the invention, the lamp bulb itself forms an absorption filter that absorbs unwanted light spectra. The color location shift into the red region of the spectrum ensues via the interference filter.
Inventors:
Siegbert Muller
Reinhard Schaefer
Reinhard Schaefer
Application Number:
JP2007540488A
Publication Date:
June 12, 2008
Filing Date:
November 11, 2005
Export Citation:
Assignee:
Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
International Classes:
H01K1/32; F21S8/10; F21S10/02; F21V9/08; F21Y101/00
Domestic Patent References:
| JP2000090887A | 2000-03-31 | |||
| JP2003510783A | 2003-03-18 | |||
| JP2004503908A | 2004-02-05 |
Attorney, Agent or Firm:
Takuya Kuno
Toshiomi Yamazaki
Hiroshi Sugimoto
Toshiomi Yamazaki
Hiroshi Sugimoto