Fluorescent components and light emitting modules
A technology for light-emitting modules and components, which is applied in the directions of light guides, light-emitting materials, and optical elements doped with fluorescent agents, can solve the problems of reduced directivity and reduced light utilization efficiency, and achieve the effect of suppressing the reduction of luminous efficiency.
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no. 1 Embodiment approach ＞
[0101] (light emitting module)
[0102] Hereinafter, a light-emitting module according to a preferred embodiment in consideration of the above point of view will be described. figure 1 It is a schematic diagram of the light emitting module of 1st Embodiment. The light emitting module 100 includes a light emitting element 10 as a light source, and a wavelength conversion unit 12 . Although the light-emitting element 10 is preferably a semiconductor light-emitting element such as an LED (Light emitting diode) element, an LD (Laser diode: laser diode) element, and an EL (Electro Luminescence: electroluminescence) element, as long as the directivity can be compared A light source that emits strong light may be an element other than the above.
[0103] The wavelength conversion part 12 has: an incident part 12a, which is incident on the light (excitation light) L1 emitted by the light-emitting element 10; .
[0104] At least a part of the surface of the wavelength conversion un...
Embodiment 1
[0112] (Example 1: The case where a chloroapatite single crystal rod is used for a phosphor)
[0113] First, a method for producing a single crystal rod made of an apatite phosphor will be described. As a raw material, weigh each raw material CaCO 3 , CaHPO 4 2H 2 O, Eu 2 o 3 , NH 4 Cl, CaCl 2 , so that their molar ratio CaCO 3 : CaHPO 4 · 2H 2 O: Eu 2 o 3 : NH 4 Cl: CaCl 2 = 1.8: 3.0: 0.10: 1.0: 5.0, each raw material weighed was put into an alumina mortar, pulverized and mixed to obtain a raw material mixture. Put this raw material mixture into an alumina crucible, heat it up to 1200°C at a heating rate of 100°C / h, use an electric furnace with a reducing atmosphere, and set it in a predetermined atmosphere (H 2 :N 2 =5:95) at a temperature of 1200°C for 10 hours (synthesis), then lowered the temperature to 800°C at a cooling rate of 5°C / h, and then naturally cooled to obtain a fired product. The obtained fired product was carefully washed with warm pure water...
Embodiment 2
[0120] (Example 2: The case where a chloromethyl silicate single crystal rod is used for a phosphor)
[0121] First, a method for producing a single crystal rod made of chloromethyl silicate will be described. As a raw material, weigh each raw material SiO 2 , CaCO3 , SrCl 2 2H 2 O, Eu 2 o 3 , NH 4 Cl, such that their molar ratio SiO 2 : CaCO 3 : SrCl 2 2H 2 O: Eu 2 o 3 : NH 4 Cl=1.0:0.5:0.8:0.2:10.0, each raw material weighed was put into an alumina mortar, pulverized and mixed to obtain a raw material mixture. Put this raw material mixture into an alumina crucible, heat it up to 1000°C at a heating rate of 100°C / h, use an electric furnace with a reducing atmosphere, and set it in a predetermined atmosphere (H 2 :N 2 =5:95) at a temperature of 1000°C for 30 hours (synthesis), then lowered the temperature to 700°C at a cooling rate of 30°C / h, and then cooled naturally to obtain a fired product. The obtained fired product was carefully washed with warm pure water...
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