JP2009521787A - 少なくともirブロック膜又はuvブロック膜を備える光学ディフューザ - Google Patents
少なくともirブロック膜又はuvブロック膜を備える光学ディフューザ Download PDFInfo
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- JP2009521787A JP2009521787A JP2008547448A JP2008547448A JP2009521787A JP 2009521787 A JP2009521787 A JP 2009521787A JP 2008547448 A JP2008547448 A JP 2008547448A JP 2008547448 A JP2008547448 A JP 2008547448A JP 2009521787 A JP2009521787 A JP 2009521787A
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- Prior art keywords
- film
- diffuser
- light
- glass substrate
- illumination system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Images
Classifications
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- G—PHYSICS
- G02—OPTICS
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Abstract
【解決手段】 照明系に使用され、赤外(IR)光及び/又は紫外(UV)光の相当量をブロック可能なディフューザが提供されている。本発明の所定の実施例において、IR光及び/又はUV光の相当量をブロックしてディフューザを通過しうるIR光及び/又はUV光の相当量を低下させる1つ以上のIR/UV膜、を支持するガラス基板を備える。所定の実施例において、膜は、可視光を拡散すると共にIR光及び/又はUV光をブロックしうるようにフリット母材中に粒子を含有するのでもよい。
【選択図】図1
Description
20-8089フリットのみからなり(膜内にIRブロッカを含まず。)同一の条件で作製された膜とを備える比較例としてのディフューザについてのものであり、図13の曲線(b)は、ガラス基板とFerro 20-8099フリットのみからなり(膜内にIRブロッカを含まず。)同一の条件で作製された膜とを備える比較例としてのディフューザについてのものである。例16(図15の曲線(c))のディフューザは、比較例(図13の曲線(a)及び曲線(b))に比較して、IR波長領域において大幅に改善された(低下した)透過率を有していたことが分かる。特に、フリットのみの膜を備えた例16のディフューザとIRブロック膜10を備えたディフューザ(図15の曲線(c))と比較することによって、例16のディフューザはIRブロック特性が非常に改良されていた(即ち、IR透過率は図13の比較例に比較して例16におけるものが実質的に減少している)ことがわかる。
20-8099フリットの代わりに)用いられていることを除けば、例22と同じであった。熱強化ガラス基板1とIRブロック及びUVブロック/拡散膜10とを備えた例24のディフューザDの波長特性は、図18に曲線(c)によって示されている。この例の膜10の厚さは、図19に示されている(図16におけるように、菱形の曲線はメッシュ寸法140を示す。)。図24は、この例のディフューザが10.8%のTIRを有していたことを図示する。図13と図18とを比較することによって、この例のディフューザが、図13の比較例におけるものよりも、大幅に改善された(低下した)IR透過率を有していたことが分かる。図15と図18とを比較することによって、この例のディフューザDが、例えば、例14及び例15におけるものよりも大幅に改善された(低下した)UV透過率及びIR透過率を有し、これが明らかに膜10にチタニアを添加したことによることも分かる。
20-8099フリットの代わりに)用いられていることを除けば、例23と同じであった。熱強化ガラス基板1とIRブロック及びUVブロック/拡散膜10とを備えた例25のディフューザDの波長特性は、図18に曲線(d)によって示されている。この例の膜10の厚さは、図19に示されている。図24は、この例のディフューザが14.4%のTIRを有していたことを図示する。
10 IR/UVブロック膜
10’ フッ素ドープ錫酸化膜
10” 拡散膜
20 拡散膜
50 光源
52 ディスプレイパネル
D ディフューザ
R 粗い表面
Claims (22)
- 少なくとも可視光を含み更に赤外(IR)光及び紫外(UV)光のうちの1つ以上を含みうる光を放射する光源と、前記光源からの光を受光するように配置され、前記光源から受光した可視光を拡散するディフューザと、を備え、
前記ディフューザがIRブロック膜を支持するガラス基板を有し、その結果、前記ディフューザが波長約2300nmで約45%未満の透過率を有する、ことを特徴とする照明系。 - 前記IRブロッカ膜が、ガラスフリット内にIRブロック物質を有する、ことを特徴とする請求項1に記載の照明系。
- 前記IRブロック物質が、亜鉛アンチモン化合物を含む、ことを特徴とする請求項1に記載の照明系。
- 前記IRブロッカ膜は、UV光の相当量をもブロックし、前記ディフューザが約20%未満のTuv(UV透過率)を有する、ことを特徴とする請求項1に記載の照明系。
- 前記膜が、更にガラスフリット内に、Ce、Bi、Ti、Sn及びSbのうちの1つ以上の無機酸化物を有する、ことを特徴とする請求項2に記載の照明系。
- 前記膜は、Ce、Bi、Ti、Sn及びSbのうちの1つ以上の無機酸化物を重量比で約0.1〜15%有する、ことを特徴とする請求項5に記載の照明系。
- 前記膜が、Ce、Bi、Ti、Sn及びSbのうちの1つ以上の無機酸化物を重量比で約0.1〜10%有する、ことを特徴とする請求項6に記載の照明系。
- 前記膜は、亜鉛アンチモン化合物を重量比で約5〜50%、好ましくは約5〜40%、最も好ましくは約10〜35%有する、ことを特徴とする請求項1に記載の照明系。
- 前記膜は、フリットを重量比で少なくとも約50%、好ましくは少なくとも約60%、より好ましくは少なくとも約70%有する、ことを特徴とする請求項1に記載の照明系。
- 前記ディフューザが、波長約2300nmで約30%未満の透過率を有する、ことを特徴とする請求項1に記載の照明系。
- 前記ディフューザが、波長約2300nmで約20%未満の透過率を有する、ことを特徴とする請求項1に記載の照明系。
- 前記ディフューザが、約10%未満のTuvを有する、ことを特徴とする請求項1に記載の照明系。
- 前記IRブロック膜が、前記ガラス基板に間接的に接触するように形成されている、ことを特徴とする請求項1に記載の照明系。
- 前記ガラス基板が、熱強化処理されている、ことを特徴とする請求項1に記載の照明系。
- 前記膜が、IR光をブロックするための低放射率(Low-E)膜を有し、少なくともフリットを有する膜が前記低放射率膜上に形成されている、ことを特徴とする請求項1に記載の照明系。
- 前記膜が、酸化錫を含有する膜を有し、少なくともフリットを有する膜が前記酸化錫を含有する膜上に形成されている、ことを特徴とする請求項1に記載の照明系。
- 前記ディフューザが、波長325nmで15%未満、好ましくは10%未満、最も好ましくは5%未満の透過率を有する、ことを特徴とする請求項1に記載の照明系。
- 前記ディフューザが、約35%以上、好ましくは約50%以上、より好ましくは約60%以上の可視光の透過率を有する、ことを特徴とする請求項1に記載の照明系。
- IR光及びUV光の1つ以上をブロックする膜を支持するガラス基板を備え、照明系に使用されるディフューザであって、
(a)Tuv(UV光の透過率)が約20%未満であり、前記UV光をブロックする膜が少なくとも無機の金属酸化物を含有して相当量のUV光をブロックし、少なくとも無機の金属酸化物がフリット内に含有すること、及び、
(b)波長約2300nmで約45%未満の透過率を有すること、
のうちの何れか1つ以上によって特徴付けられる光学ディフューザ。 - 前記ディフューザが、前記(a)と前記(b)との両方によって特徴付けられる請求項19に記載の光学ディフューザ。
- 前記ディフューザが、前記(b)によって特徴付けられ、波長約2300nmで約30%未満の透過率を有する、ことを特徴とする請求項19に記載の光学ディフューザ。
- 前記膜が、少なくともIR光をブロックする膜を含み、亜鉛アンチモン化合物を含有している、ことを特徴とする請求項19に記載の光学ディフューザ。
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Also Published As
Publication number | Publication date |
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US7771103B2 (en) | 2010-08-10 |
JP5189499B2 (ja) | 2013-04-24 |
EP1963912A2 (en) | 2008-09-03 |
WO2007075704A3 (en) | 2008-04-24 |
WO2007075704A2 (en) | 2007-07-05 |
US20070064446A1 (en) | 2007-03-22 |
EP1963912A4 (en) | 2011-10-12 |
CA2628741A1 (en) | 2007-07-05 |
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