In collaboration with the research team of Prof. Hideo Hideo of Tokyo Institute of Technology and Professor Zebo of Nagoya University, Nippon Kogyo Co., Ltd. has developed a new yellow fluorescent material "Cl_MS phosphor", which is mainly used for white LEDs for lighting. The director of the director of the Silk Manufacturing Co., the director of the technology, and the director of the Intellectual Property Department of the System Commodity Planning Office, said that the white LED with Cl_MS phosphor can not only be suitable for indoor lighting. Soft light can also reduce costs." The specific production time has not been announced, but Yokoya said, "The mass production technology of fluorescent materials has been established, and negotiations are being held with LED manufacturers and lighting manufacturers."
Quantum efficiency is 94 %
The Cl_MS phosphor is made by adding Eu (é“•) 2+, an activator responsible for luminescence, to the mother crystal of (Ca1-x, Srx)7(SiO3)6Cl2, "having a layered new crystal structure" (small Dai Changfang, director of the Institute of Silk Production.) It is characterized in that it can convert purple light into yellow light with a quantum efficiency of 94%; less blue light is absorbed during excitation; and a wide range of luminescence spectrum, so the color expression is high.
The filament manufacturing institute developed a hemispherical white LED having a diameter of 10 mm by using a combination of a Cl_MS phosphor, a blue phosphor, and a violet LED chip. According to Dachang, a small wire manufacturer, "thicker Cl_MS phosphors and blue phosphor particles are coated at low concentrations." The concentration of the phosphor particles is reduced to 1/10 to 1/20 as compared with the conventional white LED structure having a thickness of about 2 mm to 3 mm and a thickness of about 0.5 mm.
Quantum efficiency is 94 %
The Cl_MS phosphor is made by adding Eu (é“•) 2+, an activator responsible for luminescence, to the mother crystal of (Ca1-x, Srx)7(SiO3)6Cl2, "having a layered new crystal structure" (small Dai Changfang, director of the Institute of Silk Production.) It is characterized in that it can convert purple light into yellow light with a quantum efficiency of 94%; less blue light is absorbed during excitation; and a wide range of luminescence spectrum, so the color expression is high.
The filament manufacturing institute developed a hemispherical white LED having a diameter of 10 mm by using a combination of a Cl_MS phosphor, a blue phosphor, and a violet LED chip. According to Dachang, a small wire manufacturer, "thicker Cl_MS phosphors and blue phosphor particles are coated at low concentrations." The concentration of the phosphor particles is reduced to 1/10 to 1/20 as compared with the conventional white LED structure having a thickness of about 2 mm to 3 mm and a thickness of about 0.5 mm.
CI_MS ​​phosphor
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