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AssigneeSharp Kabushiki Kaisha
InventorsMasaya ISHIDA, Tatsuya Morioka, Daisuke Hanaoka, Mototaka Taneya, Shigeo Fujita, Yoichi Kawakami, Masafumi Harada, Takamoto Sasaki, Yusuke Mori
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A light-emitting apparatus composed of a light source that emits primary light and a phosphor that absorbs the primary light and emits secondary light offers high brightness, low power consumption, and a long lifetime while minimizing adverse effects on the environment. The phosphor is formed of a III-V group semiconductor in the form of fine-particle crystals each having a volume of 2 800 nm3 or less. The light emitted from the fine-particle crystals depends on their volume, and therefore giving the fine-particle crystals a predetermined volume distribution makes it possible to adjust the wavelength range of the secondary light.
A method of producing phosphor for core of optical fiber, the method comprising:
Phosphor for core of optical fiber, wherein the phosphor having quantum well structure by second III-V group compound semiconductor synthesized on nano-crystal of first III-V group compound semiconductor having different composition from the second III-V group compound semiconductor.
A method of producing a phosphor, comprising:
Dependencies are inferred from the claim text.