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US 2022/0074584 A1Published application
Lighting device
OwnerMasataka KAMAHARAinventor
Life of this patent
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Abstract
A support member is made of a material(s) that excel in both of electrical conductivity and thermal conductivity. Phosphors are applied to the surface of the support member. The phosphors include layers having a very small thickness as close as possible to a minimum quantity of phosphors that can be obtained. The phosphors are disposed on a surface of the support member in a thickness small enough to an extent that the support member is slightly glimpsed in part from between the phosphors. The support member is exposed in part out of the lighting device.
Claims10
A lighting device, comprising:
- an emitter;
- phosphors that receive electrons discharged from the emitter and that emit light toward to a surface to be irradiated with light;
- and
- a support member that supports the phosphors, the support member including a material that excels in both of electrical conductivity and thermal conductivity,
- the phosphors being present on a surface of the support member in a thickness small enough to an extent that the support member is exposable in part through fine voids between the phosphors.
2 more elements
Dependencies are inferred from the claim text.