# US 8,783,914 B2 · Light emitting apparatus and illumination apparatus

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- Number: US 8,783,914 B2
- Document ID: US8783914B2
- Status: Granted
- Kind: B2
- Application number: 13/255,220
- Filed: 2010-03-29
- Published: 2012-01-19
- Granted: 2014-07-22
- Earliest claimed: 2009-03-31
- Assignees: Toshiba Lighting & Technology Corporation
- Applicants: Tomohiro Sanpei; Erika Takenaka
- Inventors: Tomohiro Sanpei; Erika Takenaka
- Web page: https://patentgrep.com/patent/US8783914B2

## CPC

- H10H 20/854: characterised by their material, e.g. epoxy or silicone resins
- F21K 9/68: Details of reflectors forming part of the light source
- H10H 20/856: Reflecting means
- F21Y 2115/10: Light-emitting diodes [LED]
- H10W 72/01515: {Forming coatings}
- H10W 72/075: {of bond wires}
- H10W 72/5473: {multiple bond wires connected to a common bond pad}
- H10W 72/5522: {comprising gold [Au]}
- H10W 72/884: {Die-attach connectors and bond wires}
- H10W 90/00: Package configurations
- H10W 90/753: {between laterally-adjacent chips}
- H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink}
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A light emitting apparatus comprising a light reflecting surface made of a metal, a light emitting element which has an electrode and is mounted on the light reflecting surface, and a sealing member which covers the light reflecting surface and the light emitting element. The sealing member has translucency and oxygen gas permeability of 40000 cc/m2·day or below.

## Claims

### Claim 1

A light emitting apparatus comprising:
a metal base;
an insulating portion provided on the metal base, the insulating portion including a resin base material and a filler, wherein an amount of the filler in the insulating portion is 50%-80% by weight;
a light reflecting surface provided on the insulating portion and made of a silver;
a heat generating light emitting diode mounted on the light reflecting surface; and
a sealing member which covers the insulating portion, the light reflecting surface, and the light emitting diode, the sealing member comprising a translucent resin material, wherein the oxygen gas permeability of the sealing member is 1000 cc/m2 day or above and 40000 cc/m2 day or below.

### Claim 2 (depends on 1)

The apparatus according to claim 1, further comprising: a plurality of conductive portions regularly aligned on the insulating portion, wherein the light reflecting surface is formed on each conductive portion.

### Claim 3 (depends on 1)

The apparatus according to claim 1, further comprising: a light reflecting portion laminated on the insulating portion, wherein the light reflecting surface is formed on the light reflecting portion.

### Claim 4 (depends on 1)

The apparatus according to claim 1, further comprising: a plurality of light reflecting portions regularly aligned on the insulating portion, wherein the light reflecting surface is formed on each light reflecting portion.

### Claim 5 (depends on 1)

The apparatus according to claim 1, wherein when the insulating portion receives light or heat generated from the light emitting diode, the insulating portion produces a gaseous decomposition product.

### Claim 6 (depends on 1)

An illumination apparatus comprising:
a main body; and
the light emitting apparatus according to claim 1 which is supported by the main body.