JP2004193581A5 - - Google Patents

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JP2004193581A5
JP2004193581A5 JP2003384495A JP2003384495A JP2004193581A5 JP 2004193581 A5 JP2004193581 A5 JP 2004193581A5 JP 2003384495 A JP2003384495 A JP 2003384495A JP 2003384495 A JP2003384495 A JP 2003384495A JP 2004193581 A5 JP2004193581 A5 JP 2004193581A5
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Japan
Prior art keywords
light source
wavelength
led illumination
illumination light
source according
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Application number
JP2003384495A
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Japanese (ja)
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JP2004193581A (en
JP4542329B2 (en
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Priority to JP2003384495A priority Critical patent/JP4542329B2/en
Priority claimed from JP2003384495A external-priority patent/JP4542329B2/en
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Publication of JP2004193581A5 publication Critical patent/JP2004193581A5/ja
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Publication of JP4542329B2 publication Critical patent/JP4542329B2/en
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Claims (10)

少なくとも１つのＬＥＤ素子と、
前記ＬＥＤ素子から放射された光を前記光の波長よりも長い波長を有する光に変換する蛍光物質を含有する波長変換部と、
を備えたＬＥＤ照明光源であって、
波長５５０ｎｍ以上６０５ｎｍ以下の範囲から選択された少なくとも一部の波長範囲における分光透過率が他の可視光波長範囲における分光透過率に比べて低くなるように調整されているフィルタ手段を更に備えているＬＥＤ照明光源。 At least one LED element;
A wavelength conversion unit containing a fluorescent material that converts light emitted from the LED element into light having a wavelength longer than the wavelength of the light;
An LED illumination light source comprising:
The filter means is further adjusted so that the spectral transmittance in at least a part of the wavelength range selected from the wavelength range of 550 nm to 605 nm is lower than the spectral transmittance in other visible light wavelength ranges. LED illumination light source. 前記ＬＥＤ素子は、発光ピーク波長が４００ｎｍ以上４９０ｎｍ以下の範囲に含まれる光を放射する請求項１に記載のＬＥＤ照明光源。   The LED illumination light source according to claim 1, wherein the LED element emits light having an emission peak wavelength in a range of 400 nm to 490 nm. 前記フィルタ手段は、前記波長変換部を覆うように配置されている請求項１または２に記載のＬＥＤ照明光源。 It said filter means, LED illumination light source according to claim 1 or 2 is arranged so as to cover the wavelength converter. 前記フィルタ手段は、樹脂から形成されている請求項１または２に記載のＬＥＤ照明光源。 Said filter means, LED illumination light source according to claim 1 or 2 is made of a resin. 前記波長変換部およびフィルタ手段は、いずれも、樹脂から形成されており、前記波長変換部とフィルタ手段との間に実質的な界面が存在していない請求項１または２に記載のＬＥＤ照明光源。 3. The LED illumination light source according to claim 1, wherein each of the wavelength conversion unit and the filter unit is formed of a resin, and no substantial interface exists between the wavelength conversion unit and the filter unit. . 樹脂から形成された前記波長変換部は、Ｎｄ化合物を含有しており、
前記波長変換部が前記フィルタ手段としても機能する請求項１に記載のＬＥＤ照明光源。 The wavelength conversion part formed from a resin contains an Nd compound,
The LED illumination light source according to claim 1 , wherein the wavelength conversion unit also functions as the filter unit. 前記波長変換部を取り囲む開口部を有する反射板を有している請求項６に記載のＬＥＤ照明光源。 The LED illumination light source according to claim 6 , further comprising a reflector having an opening surrounding the wavelength conversion unit. 前記フィルタ手段は、波長５７５ｎｍ以上５９０ｎｍ以下の波長範囲における分光透過率が他の可視光波長範囲における分光透過率に比べて低くなるように調整されている請求項１から７のいずれかにＬＥＤ照明光源。 The LED illumination according to any one of claims 1 to 7 , wherein the filter means is adjusted so that a spectral transmittance in a wavelength range of 575 nm or more and 590 nm or less is lower than a spectral transmittance in another visible light wavelength range. light source. 波長５７５ｎｍ以上５９０ｎｍ以下の波長範囲における前記フィルタ手段の分光透過率は、他の可視光波長範囲における分光透過率の１０％以上９５％以下の範囲に調節されている請求項８にＬＥＤ照明光源。 9. The LED illumination light source according to claim 8 , wherein a spectral transmittance of the filter unit in a wavelength range of 575 nm to 590 nm is adjusted to a range of 10% to 95% of a spectral transmittance in another visible light wavelength range. 前記ＬＥＤ素子は青色光を放射し、
前記蛍光物質は、前記ＬＥＤ素子から放射された青色光の一部を黄色光に変換する請求項１に記載のＬＥＤ照明光源。


The LED element emits blue light,
The LED illumination light source according to claim 1, wherein the fluorescent material converts a part of blue light emitted from the LED element into yellow light.


JP2003384495A 2002-11-25 2003-11-14 LED lighting source Expired - Lifetime JP4542329B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003384495A JP4542329B2 (en) 2002-11-25 2003-11-14 LED lighting source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002340367 2002-11-25
JP2003384495A JP4542329B2 (en) 2002-11-25 2003-11-14 LED lighting source

Publications (3)

Publication Number Publication Date
JP2004193581A JP2004193581A (en) 2004-07-08
JP2004193581A5 true JP2004193581A5 (en) 2006-11-02
JP4542329B2 JP4542329B2 (en) 2010-09-15

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Family Applications (1)

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JP2003384495A Expired - Lifetime JP4542329B2 (en) 2002-11-25 2003-11-14 LED lighting source

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