Light reflective material and light-emitting device

US2016109099A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016109099-A1
Application numberUS-201514868390-A
CountryUS
Kind codeA1
Filing dateSep 29, 2015
Priority dateOct 21, 2014
Publication dateApr 21, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A light reflective material of the present disclosure includes a base material having light transmission property; and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. A light-emitting device of the present disclosure includes a light emitter that emits light; and a reflective layer that covers a portion of a surface of the light emitter, the reflective layer comprising a base material having light transmission property and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index.

First claim

Opening claim text (preview).

What is claimed is: 1 . A light reflective material comprising: a base material having light transmission property; and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. 2 . The light reflective material according to claim 1 , wherein a ratio of a volume of the pores to a volume of the base material is 20% or more. 3 . A light-emitting device comprising: a light emitter that emits light; and a reflective layer that covers a portion of a surface of the light emitter, the reflective layer comprising a base material having light transmission property and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. 4 . The light-emitting device according to claim 3 , wherein the light emitter comprises a photoluminescent material and emits the light by absorbing excitation light. 5 . The light-emitting device according to claim 4 , further comprising: a first optical fiber that takes in the light from one end, the first optical fiber emitting the light from the other end. 6 . The light-emitting device according to claim 4 , further comprising: a second optical fiber that takes in the excitation light from one end, the second optical fiber emitting the excitation light toward the light emitter from the other end. 7 . The light-emitting device according to claim 3 , wherein the light emitter comprises a first electrode having light transmission property, a second electrode having light transmission property, and a luminescent layer located between the first electrode and the second electrode; the light emitter emits the light by the application of voltage between the first electrode and the second electrode; and the reflective layer is located on a side of the first electrode opposite to the luminescent layer. 8 . The light-emitting device according to claim 3 , wherein a ratio of a volume of the pores to a volume of the base material is 20% or more.

Assignees

Inventors

Classifications

  • Containers · CPC title

  • Reflective coatings, e.g. dielectric Bragg reflectors · CPC title

  • Coatings, e.g. passivation layers or antireflective coatings · CPC title

  • F21V7/22Primary

    characterised by materials, surface treatments or coatings, e.g. dichroic reflectors · CPC title

  • Electricity · mapped topic

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What does patent US2016109099A1 cover?
A light reflective material of the present disclosure includes a base material having light transmission property; and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. A light-emitting device of the present di…
Who is the assignee on this patent?
Panasonic Ip Man Co Ltd
What technology area does this patent fall under?
Primary CPC classification F21V7/22. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Apr 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).