TAKAHASHI, HIROSHI, ODAWARA RESEARCH CENTER,NAOHARA, TAKESHI, BANDAI AGR.RES.STAT, NIPPON SODA,MATSUI, NOBUO, ODAWARA RESEARCH CENTER,YANAGISAWA, ATSUSHI, ODAWARA RESEARCH CENTER,HAMAMOTO, ISAMI, ODAWARA RESEARCH CENTER,AKASHI, YURI, ODAWARA RESEARCH CENTER,YAGIHARA, TOMIO, ODAWARA RESEARCH CENTER
申请号：
EP19920923404
公开号：
EP0579835(A1)
申请日:
1992.11.11
申请国别(地区):
欧洲专利局
年份:
1994
代理人:
摘要：
A wavelength conversion material for agriculture having the function of converting a light spectrum so as to promote the growth of vegetables, a compound used for the material and a synthetic intermediate. The light spectrum contains at least one phosphorescent pigment (A) having maximum absorption in the range of 350 to 450 nm and maximum emission in the range of 380 to 520 nm, and at least one phosphorescent pigment (B) having maximum absorption in the range of 460 to 580 nm and maximum emission in the range of 540 to 800 nm, has the combination of these pigments (A) and (B) in such a way that the emission spectrum of (A) and the absorption spectrum of (B) overlap partially, and has a ratio I/I' of the emission intensity I of (A) to the intensity I' of part of excited energy of (A) at the light emission position of (B) in the range of 0.2 to 5. <IMAGE>
