Phosphor and light-emitting equipment using phosphor
AssigneesMitsubishi Chemical Corporation, National Institute for Materials Science, Nichia Corporation, Citizen Electronics Co., Ltd.
InventorsNaoto HIROSAKI, Kyota UEDA, Hajime YAMAMOTO
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Abstract
Phosphors include a CaAlSiN3 family crystal phase, wherein the CaAlSiN3 family crystal phase comprises at least one element selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb.
Claims19
1-26. (canceled)
Light-emitting equipment, comprising at least one light source, the light source comprising at least one light-emitting source and a phosphor, wherein:
- the light-emitting source emits a light having a wavelength of 330 to 500 nm;
- and
- the phosphor comprises at least one of a nitride phosphor comprising at least one of CaAlSiN3 activated with Eu and (Ca,Sr)AlSiN3 activated with Eu.
Light-emitting equipment, comprising at least one light source, the light source comprising at least one light-emitting source and a phosphor, wherein:
- the light-emitting source emits a light having a wavelength of 420 to 500 nm;
- the phosphor comprises a phosphor having an emission peak at a wavelength of 500 to 570 nm or a phosphor having an emission peak at a wavelength of 550 to 600 nm;
- and
- the phosphor comprises CaAlSiN3 activated with Eu or (Ca,Sr)AlSiN3 activated with Eu.
A lighting equipment constituted by a light-emitting source and a phosphor, wherein at least one phosphor is used, the phosphor comprising an inorganic compound which is a composition containing at least M Element, A Element, D Element, E Element, and X Element (wherein M Element is one or two or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, A Element is one or two or more elements selected from the group consisting of divalent metal elements other than M Element, D Element is one or two or more elements selected from the group consisting of tetravalent metal elements, E Element is one or two or more elements selected from the group consisting of trivalent metal elements, X Element is one or two or more elements selected from the group consisting of O, N, and F).
Dependencies are inferred from the claim text.