Title:
METHOD FOR SHIELDING ULTRAVIOLET RADIATION AND INTENSIFYING VISIBLE LIGHT, AND ULTRAVIOLET-RADIATION-SHIELDING, VISIBLE-LIGHT-INTENSIFYING MATERIAL CAPABLE OF ACHIEVING SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2012/014847
Kind Code:
A1
Abstract:
Provided is a method for shielding ultraviolet radiation and intensifying visible light at low cost and without using any rare metal, the method allowing ultraviolet radiation to be shielded or removed and visible light to pass through and allowing the energy of ultraviolet radiation to be used effectively to obtain visible light. The method for shielding ultraviolet radiation and intensifying visible light involves: a first excitation step of exciting a fluorescent substance with external light ranging from 200 nm to 330 nm; an internal-light emission step in which the fluorescent substance excited in the first excitation step emits internal light ranging from 330 nm to 400 nm; a second excitation step of exciting the fluorescent substance with external light ranging from 330 nm to 400 nm and the internal light ranging from 330 to 400 nm; and a visible-light emission step in which the fluorescent substance excited in the second excitation step emits visible light longer than or equal to 400 nm.
Inventors:
TSUJIUCHI, Yutaka (1-7 Ushijima-Nishi 4 cho-me, Akita-shi Akita, 63, 〒0100063, JP)
Application Number:
JP2011/066865
Publication Date:
February 02, 2012
Filing Date:
July 25, 2011
Export Citation:
Assignee:
TSUJIUCHI, Yutaka (1-7 Ushijima-Nishi 4 cho-me, Akita-shi Akita, 63, 〒0100063, JP)
International Classes:
C09K11/06; C03C4/12; C09K3/00; C09K11/08; F21V1/16; G02F2/00; H01L33/00
Attorney, Agent or Firm:
YAMAMOTO, Noriaki (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chome, Chuou-k, Tokyo 31, 〒1040031, JP)
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Claims: