JP5271509B2 - 気泡なくレンズを配置するための内部メニスカスを備えた発光ダイオードパッケージ要素 - Google Patents
気泡なくレンズを配置するための内部メニスカスを備えた発光ダイオードパッケージ要素 Download PDFInfo
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- JP5271509B2 JP5271509B2 JP2007143451A JP2007143451A JP5271509B2 JP 5271509 B2 JP5271509 B2 JP 5271509B2 JP 2007143451 A JP2007143451 A JP 2007143451A JP 2007143451 A JP2007143451 A JP 2007143451A JP 5271509 B2 JP5271509 B2 JP 5271509B2
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- encapsulating material
- led chip
- lens
- optical element
- led
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/855—Optical field-shaping means, e.g. lenses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/852—Encapsulations
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- Led Device Packages (AREA)
Description
(Sr、Ca、Ba)(Al、Ga)2S4:Eu2+
Ba2(Mg、Zn)Si2O7:Eu2+
Gd0.46Sr0.31Al1.23OxF1.38:Eu2+ 0.06
(Ba1-x-ySrxCay)SiO4:Eu
Ba2SiO4:Eu2+
赤色
Lu2O3:Eu3+
(Sr2-xLax)(Ce1-xEux)O4
Sr2Ce1-xEuxO4
Sr2-xEuxCeO4
SrTiO3:Pr3+、Ga3+
CaAlSiN3:Eu2+
Sr2Si5N8:Eu2+
なお、本発明に関連するLEDパッケージの他の構成として、以下のものも挙げられる。
(1)発光ダイオード(LED)パッケージであって、
LEDチップが取り付けられた基板と、
前記基板上に前記LEDチップを囲んで存在し、メニスカス保持特徴を有するメニスカスリングと、
前記LEDチップを覆い、前記基板上に接触面を有する内側カプセル化材料であって、
前記メニスカス保持特徴が前記接触面の縁部を画定する前記内側カプセル化材料と、
少なくとも一部分が凹状の底面を有し、前記凹状部分が前記LEDチップを覆った状態で、前記基板上に存在する光学素子と、
前記内側カプセル化材料と前記光学素子との間の接触用カプセル化材料と
を備えることを特徴とするLEDパッケージ。
(2)前記光学素子は、実質的に半球のレンズを備えることを特徴とする前記(1)に記載のLEDパッケージ。
(3)前記内部カプセル化材料は、ある曲率半径をもち、前記光学素子の凹状部分は、ある曲率半径をもち、前記凹状部分は、前記内側カプセル化材料よりも大きな曲率半径をもつことを特徴とする前記(1)に記載のLEDパッケージ。
(4)前記光学素子と前記接触用カプセル化材料との間には、実質的に空気が閉じ込められていないことを特徴とする前記(1)に記載のLEDパッケージ。
(5)前記メニスカス形成特徴は、光学素子保持特徴をさらに備えることを特徴とする前記(1)に記載のLEDパッケージ。
Claims (6)
- 発光ダイオード(LED)パッケージを製作する方法であって、
LEDチップを提供するステップと、
前記LEDチップの少なくとも一部分を、ある曲率半径をもつ接触用液体カプセル化材料で覆うステップと、
少なくとも一部分が前記液体カプセル化材料よりも大きな曲率半径をもつ底面を有する光学素子であって、該光学素子は、半球のレンズを備え、前記半球レンズは、前記接触用液体カプセル化材料よりも大きな曲率半径をもつ凹状部分を備えた底面を有する光学素子を提供するステップと、
前記光学素子の前記より大きな曲率半径部分を、前記液体カプセル化材料と接触させるステップであって、ここで、前記光学素子の前記より大きな曲率半径部分は、前記液体カプセル化材料と、前記液体カプセル化材料の最も高い点で最初に接触する、ステップと、
前記光学素子を、前記LEDチップにさらに近づけて、前記光学素子と前記液体カプセル化材料との間の接触領域を拡大させるステップであって、ここで、前記接触領域は、前記光学素子が前記LEDチップにさらに近づくにつれて外に大きくなり、前記液体カプセル化材料と前記光学素子との間の空気の閉じ込めが低減される、ステップと、
前記液体カプセル化材料を硬化させるステップと
を含むことを特徴とする方法。 - 前記LEDチップを直接覆う内側カプセル化材料をさらに備え、前記液体カプセル化材料は、前記内側カプセル化材料上に設けられることを特徴とする請求項1に記載の方法。
- 基板を提供するステップをさらに含み、前記LEDは前記基板に取り付けられることを特徴とする請求項1または2に記載の方法。
- 前記基板は、メニスカスリングを前記LEDチップの周囲にさらに備えることを特徴とする請求項3に記載の方法。
- 液体内側カプセル化材料を、前記LEDチップを直接覆って堆積させるステップと、
前記内側カプセル化材料を硬化させるステップと
をさらに含み、
前記メニスカスリングは、前記液体内側カプセル化材料を、硬化されるまで半球形に保持し、前記接触用液体カプセル化材料は、前記硬化された内側カプセル化材料上に設けられることを特徴とする請求項4に記載の方法。 - 前記光学素子の底面に設けられた前記凹状部分は、前記LEDチップの少なくとも一部分が、前記半球レンズの前記凹状部分内にあるようにサイズ設定されていることを特徴とする請求項1から5の何れか1項に記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/496,918 | 2006-07-31 | ||
| US11/496,918 US7804147B2 (en) | 2006-07-31 | 2006-07-31 | Light emitting diode package element with internal meniscus for bubble free lens placement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008034806A JP2008034806A (ja) | 2008-02-14 |
| JP5271509B2 true JP5271509B2 (ja) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007143451A Active JP5271509B2 (ja) | 2006-07-31 | 2007-05-30 | 気泡なくレンズを配置するための内部メニスカスを備えた発光ダイオードパッケージ要素 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7804147B2 (ja) |
| EP (1) | EP1885003A3 (ja) |
| JP (1) | JP5271509B2 (ja) |
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-
2006
- 2006-07-31 US US11/496,918 patent/US7804147B2/en active Active
-
2007
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- 2007-05-30 JP JP2007143451A patent/JP5271509B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US7804147B2 (en) | 2010-09-28 |
| US20080026498A1 (en) | 2008-01-31 |
| EP1885003A3 (en) | 2010-09-15 |
| EP1885003A2 (en) | 2008-02-06 |
| JP2008034806A (ja) | 2008-02-14 |
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