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US 10,073,320 B2Granted
Wavelength converter containing phosphor particles
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakahiro Hamada, Kazuma Mima, Yukihiko Sugio, Yoshihisa Nagasaki
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Abstract
A wavelength converter comprises: phosphor particles; and a matrix that is located between the phosphor particles and comprises zinc oxide crystallites. Pores are included in at least one of the zinc oxide crystallites.
Claims12
A wavelength converter comprising:
- phosphor particles;
- and
- a matrix that is located between the phosphor particles and comprises zinc oxide crystallites, wherein:
- pores are included in at least one of the zinc oxide crystallites, and
- the pores in at least one of the zinc oxide crystallites are disposed non-uniformly.
2 more elements
A light source comprising:
- a semiconductor light emitting device that emits light having a peak wavelength of 420 nm or more and 470 nm or less;
- and
- a wavelength converter that receives the light emitted from the semiconductor light emitting device and emits converted light having a wavelength different from a wavelength of the light, wherein:
- the wavelength converter comprises:
- phosphor particles;
- and
- a matrix that is located between the phosphor particles and comprises zinc oxide crystallites, wherein pores are included in at least one of the zinc oxide crystallites, and the pores in at least one of the zinc oxide crystallites are disposed non-uniformly.
4 more elements
A lighting system comprising:
- a light source;
- and
- a power supply source coupled to the light source, wherein the light source comprises:
- a semiconductor light emitting device that emits light having a peak wavelength of 420 nm or more and 470 nm or less;
- and
- a wavelength converter that receives the light emitted from the semiconductor light emitting device and emits converted light having a wavelength different from a wavelength of the light, wherein
- the wavelength converter comprises:
- phosphor particles;
- and
- a matrix that is located between the phosphor particles and comprises zinc oxide crystallites, wherein pores are included in at least one of the zinc oxide crystallites, the pores in at least one of the zinc oxide crystallites are disposed non-uniformly.
7 more elements
Dependencies are inferred from the claim text.