JP2013197058A5 - Light emitting device, lighting device, and vehicle headlamp - Google Patents

Light emitting device, lighting device, and vehicle headlamp Download PDF

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JP2013197058A5
JP2013197058A5 JP2012066193A JP2012066193A JP2013197058A5 JP 2013197058 A5 JP2013197058 A5 JP 2013197058A5 JP 2012066193 A JP2012066193 A JP 2012066193A JP 2012066193 A JP2012066193 A JP 2012066193A JP 2013197058 A5 JP2013197058 A5 JP 2013197058A5
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light emitting
light
unit
radiation angle
angle distribution
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JP2013197058A (en
JP6022176B2 (en
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Priority to PCT/JP2013/056580 priority patent/WO2013141054A1/en
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Claims (18)

光を出射する発光部を備え、
前記発光部は、出射する光の放射角度分布を、少なくとも、第１の放射角度分布と、当該第１の放射角度分布よりも広い第２の放射角度分布との間で変更可能であることを特徴とする発光装置。 A light emitting unit for emitting light;
The light emitting unit can change a radiation angle distribution of emitted light between at least a first radiation angle distribution and a second radiation angle distribution wider than the first radiation angle distribution. A light emitting device characterized. 前記発光部は、少なくとも、前記第１の放射角度分布で光を出射する第１の発光部分と、前記第２の放射角度分布で光を出射する第２の発光部分とを含み、
前記第１の発光部分および前記第２の発光部分の一方を、選択的に発光させることを特徴とする請求項１に記載の発光装置。 The light emitting unit includes at least a first light emitting part that emits light with the first radiation angle distribution, and a second light emitting part that emits light with the second radiation angle distribution,
2. The light emitting device according to claim 1, wherein one of the first light emitting portion and the second light emitting portion selectively emits light . 前記発光部は、励起光を受けて前記光である蛍光を出射する蛍光体を含み、
前記第１の発光部分および前記第２の発光部分の一方に、前記励起光が選択的に照射されることを特徴とする請求項２に記載の発光装置。 The light-emitting unit includes a phosphor that receives excitation light and emits fluorescence that is the light,
The light-emitting device according to claim 2, wherein the excitation light is selectively irradiated to one of the first light-emitting portion and the second light-emitting portion. 前記発光部を載置する可動式の載置部をさらに備え、
前記載置部は、前記第１の発光部分および前記第２の発光部分の一方に、前記励起光が照射されるように、当該励起光に対する前記発光部の相対的な位置または角度を変化させることを特徴とする請求項３に記載の発光装置。 It further comprises a movable placing part for placing the light emitting part,
The placement unit changes a relative position or angle of the light emitting unit with respect to the excitation light so that one of the first light emitting part and the second light emitting part is irradiated with the excitation light. The light-emitting device according to claim 3. 前記励起光は、前記発光部から出射された光を投光する投光部の焦点に向けて照射されていることを特徴とする請求項３または４に記載の発光装置。 The light emitting device according to claim 3 or 4, wherein the excitation light is irradiated toward a focal point of a light projecting unit that projects light emitted from the light emitting unit. 前記第２の発光部分は、前記第１の発光部分よりも厚みが大きい形状であることを特徴とする請求項３から５のいずれか１項に記載の発光装置。 6. The light emitting device according to claim 3, wherein the second light emitting portion has a shape that is thicker than the first light emitting portion. 前記第１の発光部分は、前記発光部が載置される載置面に対して略平行な平板形状であり、
前記第２の発光部分は、前記載置面に当接する底面に対して垂直な方向に向かって、当該底面に平行な断面積が徐々に減少する形状であることを特徴とする請求項６に記載の発光装置。 The first light emitting portion has a flat plate shape substantially parallel to a placement surface on which the light emitting portion is placed,
The second light emitting portion has a shape in which a cross-sectional area parallel to the bottom surface gradually decreases in a direction perpendicular to the bottom surface contacting the mounting surface. The light emitting device described. 前記発光部は、厚みが徐々に変化する連続的な形状であり、
前記連続的な形状のうち、任意の厚みを有する部分が前記第１の発光部分となり、当該任意の厚みを有する部分よりも厚みが大きい部分が前記第２の発光部分となることを特徴とする請求項６に記載の発光装置。 The light emitting part has a continuous shape with a gradually changing thickness,
Of the continuous shape, a portion having an arbitrary thickness serves as the first light emitting portion, and a portion having a larger thickness than the portion having the arbitrary thickness serves as the second light emitting portion. The light emitting device according to claim 6. 前記発光部は、リング形状であることを特徴とする請求項８に記載の発光装置。 The light emitting device according to claim 8, wherein the light emitting unit has a ring shape. 前記励起光は、レーザ光であることを特徴とする請求項３から７のいずれか１項に記載の発光装置。 The light emitting device according to claim 3, wherein the excitation light is laser light. 前記発光部は、少なくとも、前記第１の放射角度分布で光を出射する第１の発光素子と、前記第２の放射角度分布で光を出射する第２の発光素子とを含み、
前記第１の発光素子および前記第２の発光素子の一方を、選択的に点灯させることを特徴とする請求項１に記載の発光装置。 The light emitting unit includes at least a first light emitting element that emits light with the first radiation angle distribution and a second light emitting element that emits light with the second radiation angle distribution,
The light emitting device according to claim 1 in which one of the first light emitting element and the second light emitting element, wherein the selectively illuminated. 前記第１の発光素子および前記第２の発光素子を載置する可動式の載置部と、
前記第１の発光素子および前記第２の発光素子の点灯を切り替える点灯切替部とをさらに備え、
前記点灯切替部は、前記載置部によって前記第１の発光素子および前記第２の発光素子の一方が、前記発光部から出射された光を投光する投光部の焦点に配置されたとき、当該焦点に配置された前記第１の発光素子または前記第２の発光素子を点灯させることを特徴とする請求項１１に記載の発光装置。 A movable mounting portion for mounting the first light emitting element and the second light emitting element;
A lighting switching unit that switches lighting of the first light emitting element and the second light emitting element;
The lighting switching unit is arranged such that one of the first light emitting element and the second light emitting element is arranged at the focal point of the light projecting unit that projects the light emitted from the light emitting unit by the mounting unit. the light emitting device according to claim 11, characterized in that for lighting the disposed on the focal first light emitting element or the second light emitting element. 前記第１の発光素子および前記第２の発光素子は、ＬＥＤであることを特徴とする請求項１１または１２に記載の発光装置。 The first light emitting element and the second light-emitting device according to claim 11 or 12, characterized in that an LED. 前記載置部は、スライド可能または回転可能に設けられていることを特徴とする請求項４または１２に記載の発光装置。 The light emitting device according to claim 4 or 12, wherein the mounting portion is provided so as to be slidable or rotatable. 前記発光部は、出射する光の放射角度分布を、互いに異なる３つ以上の放射角度分布に変更可能であることを特徴とする請求項１から１４のいずれか１項に記載の発光装置。 The light emitting device according to claim 1, wherein the light emitting unit is capable of changing a radiation angle distribution of emitted light to three or more radiation angle distributions different from each other. 請求項１から１５のいずれか一項に記載の発光装置と、The light emitting device according to any one of claims 1 to 15,
前記発光部から出射された光を投光する投光部とを備えることを特徴とする照明装置。An illumination device comprising: a light projecting unit that projects light emitted from the light emitting unit. 請求項１６に記載の照明装置を備えることを特徴とする車両用前照灯。 A vehicle headlamp comprising the lighting device according to claim 16 . 前記照明装置を搭載する車両の速度に応じて、前記発光部から出射される光の放射角度分布を、前記第１の放射角度分布と前記第２の放射角度分布との間で変更することを特徴とする請求項１７に記載の車両用前照灯。 Changing the radiation angle distribution of the light emitted from the light emitting unit between the first radiation angle distribution and the second radiation angle distribution according to the speed of the vehicle on which the illumination device is mounted. The vehicle headlamp according to claim 17 , wherein the vehicle headlamp is characterized in that:
JP2012066193A 2012-03-22 2012-03-22 Light emitting device, lighting device, and vehicle headlamp Active JP6022176B2 (en)

Priority Applications (2)

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JP2012066193A JP6022176B2 (en) 2012-03-22 2012-03-22 Light emitting device, lighting device, and vehicle headlamp
PCT/JP2013/056580 WO2013141054A1 (en) 2012-03-22 2013-03-11 Illumination device and vehicle headlight

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CN107388118A (en) * 2017-06-13 2017-11-24 佛山市南海区协隆电器有限公司 Light projecting apparatus and illuminating lamp
CN107461701A (en) * 2017-06-13 2017-12-12 佛山市南海区协隆电器有限公司 A kind of light projecting apparatus and illuminating lamp
CN107388119A (en) * 2017-06-13 2017-11-24 佛山市南海区协隆电器有限公司 Light projecting apparatus and illuminating lamp
JP7404508B2 (en) * 2020-03-31 2023-12-25 京セラ株式会社 Light converters and lighting systems

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JP4786420B2 (en) * 2006-05-31 2011-10-05 株式会社小糸製作所 Vehicle lamp unit
JP2007335311A (en) * 2006-06-16 2007-12-27 Koito Mfg Co Ltd Lamp for vehicle
JP4881255B2 (en) * 2007-08-13 2012-02-22 株式会社小糸製作所 Vehicle headlamp
EP2318752B1 (en) * 2008-08-22 2012-02-15 Koninklijke Philips Electronics N.V. Compact multiple beam type vehicle light system
JP5266605B2 (en) * 2009-03-27 2013-08-21 スタンレー電気株式会社 Vehicle lighting
JP5549212B2 (en) * 2009-12-16 2014-07-16 豊田合成株式会社 Vehicle lighting device
JP5530171B2 (en) * 2009-12-25 2014-06-25 スタンレー電気株式会社 Lighting device

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