Title:
ILLUMINATING LIGHT SOURCE
Document Type and Number:
Japanese Patent JP3811967
Kind Code:
B2
Abstract:
PURPOSE: To provide an illuminating light source which can improve restrictions on luminescent colors and can also improve lamp efficiency by utilizing the infrared range positively.
CONSTITUTION: This illuminating light source has a light emitter 2b, which provides thermal radiation (temperature radiation) in the visible and infrared ranges by being heated to high temperatures and an infrared/visible light conversion material 4a which is excited to a number of upper levels by infrared light having a smaller amount of energy than visible light, so that visible light with a large amount of energy can be obtained. With the intervention of the infrared/ visible light conversion material 4a, infrared radiation from the light emitter 2b is converted into new visible radiation, which is superimposed on that from the light emitter 2b to obtain visible radiation. The illuminating light source that can improve restrictions on luminescent colors and can also improve lamp efficiency is obtained.
Inventors:
Masahiro Higashikawa
Application Number:
JP10638595A
Publication Date:
August 23, 2006
Filing Date:
April 28, 1995
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
F21V3/04; F21V9/04; F21S2/00; F21V8/00; H01J61/42; H01K1/32; F21Y101/00; (IPC1-7): F21V3/04; H01J61/42; H01K1/32
Domestic Patent References:
| JP64080936A | ||||
| JP4012035A | ||||
| JP6080253U | ||||
| JP47040877A |
Attorney, Agent or Firm:
Junji Ando
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