专利名称：LIGHT SOURCE AND MANUFACTURING
METHOD THEREFOR
发明人：SASAI, Yasushi申请号：EP14857301.7申请日：20141006公开号：EP3065162A4公开日：20170628
摘要：The invention provides a light source that is favorable for the lighting of freshfoods required to show colors of meat, vegetables and the like more vividly than a high-chroma and high-color-rendering type of high-pressure sodium lamp and a method ofmanufacturing the same. In a light source according to the present embodiment of thepresent invention comprises at least a light emitting portion to emit visible rays; the lightemitting portion is provided with such a luminous spectrum that if a wavelength region of380 to 780 nm of visible light is split into a first wavelength region of a violet-bluishcolors of wavelengths of 380 to 490 nm, a second wavelength region of greenish colorsof wavelengths of 490 to 570 nm, a third wavelength region of yellowish colors ofwavelengths of 570 to 590 nm, and a fourth wavelength region of orange-reddish colorsof wavelengths of 590 to 780 nm, and a distribution ratio of an integrated value of energystrength of light from the light emitting portion calculated for each of the fourwavelength regions is set to be \"y1 : y2 : y3 : y4\" (where y1 + y2 + y3 + y4 = 100), thefollowing formula is obtained. 7 ‰¤ y 1 ‰¤ 11 , 15 ‰¤ y 2 ‰¤
申请人：Iwasaki Electric Co., Ltd.
地址：1-4-16, Nihonbashi-bakurocho Chuo-ku Tokyo 103-0002 JP
国籍：JP
代理机构：Copsey, Timothy Graham
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