Wavelength conversion member, light source device using same, projector and vehicle
Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
02.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer. |
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Bibliography: | Application Number: US201917273604 |