Title:
VISIBLE LIGHT SOURCE AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2015210909
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a visible light source having high color rendering properties.SOLUTION: A visible light source comprises: a conductive filament base material 1; a white scattering body layer 2 provided on the conductive filament base material 1; and a visible light absorption layer 3 provided on the white scattering body layer 2. In the visible light absorption layer 3, if a diameter of from 1 to 10 nm is defined as a small size, a diameter of from 10 to 100 nm is defined as a medium size, and a diameter of from 100 to 500 nm is defined as a large size, a small size metal micro-particle M1, a medium size metal micro-particle M2 and a large size metal micro-particle M3 are randomly distributed in a white scattering body shown by white circle. Resonance absorption of the metal micro-particle is shifted to the long-wavelength side and resonance absorption peak is reduced by widening of a band as the size of the micro-particle becomes large.
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Inventors:
YOKOYAMA TAKAHIRO
Application Number:
JP2014090974A
Publication Date:
November 24, 2015
Filing Date:
April 25, 2014
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
H01K1/08; H01K1/04
Attorney, Agent or Firm:
Shozo Igarashi