Title:
色温度が調整可能なLED灯の使用方法
Document Type and Number:
Japanese Patent JP4774076
Kind Code:
B2
Abstract:
A currently-available white LED can be modified to freely set a colour temperature as well as to improve a colour rendering property. A correction-colour LED or LEDs having a peak wavelength in a specific wavelength region in association with a white LED are provided to make a colour temperature-regulable LED which permit the correction of not only a colour temperature but also a colour rendering property by means of colour-mixture of the correction-colour LED and the white LED considering the colour temperature and a spectrum distribution of the white LED. The colour temperature-regulable LED is especially useful as an shadowless operating light, a living room light and a decorative light
Inventors:
Yukiya Okumura
Application Number:
JP2008116942A
Publication Date:
September 14, 2011
Filing Date:
April 28, 2008
Export Citation:
Assignee:
Yukiya Okumura
International Classes:
F21S2/00; A61B19/00; F21S8/00; F21S10/02; F21V21/40; H01L33/50; H05B44/00; F21W131/205; F21Y101/02
Domestic Patent References:
| JP2001176677A | ||||
| JP3226903A | ||||
| JP7094146A | ||||
| JP2000513293A | ||||
| JP2000231802A |
Attorney, Agent or Firm:
Hisao Ishii