Document Type and Number:
Japanese Patent JPWO2023032301
Kind Code:
A1
Abstract:
A light source module according to an embodiment of the present disclosure comprises: a light source unit that emits excitation light; a wavelength conversion unit that emits first light and second light having wavelength bands different from each other; a phosphor region that is provided in the wavelength conversion unit, absorbs the excitation light, and emits, as the first light, fluorescence in a wavelength band different from that of the excitation light, together with the second light; a reflection region that is provided in the wavelength conversion unit, and emits, as the second light, the excitation light with an angular distribution different from that of the second light emitted from the phosphor region; and a region-divided wavelength-selective element having a first region that transmits the first light and the second light, and a second region that selectively reflects or absorbs the second light.
Application Number:
JP2023545050A
Publication Date:
March 09, 2023
Filing Date:
March 17, 2022
Export Citation:
Previous Patent: JPWO2023032300
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