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JP2013062127A - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
JP2013062127A
JP2013062127A JP2011199577A JP2011199577A JP2013062127A JP 2013062127 A JP2013062127 A JP 2013062127A JP 2011199577 A JP2011199577 A JP 2011199577A JP 2011199577 A JP2011199577 A JP 2011199577A JP 2013062127 A JP2013062127 A JP 2013062127A
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Japan
Prior art keywords
light
color
led module
light source
vertical direction
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JP2011199577A
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Japanese (ja)
Inventor
Kenichiro Tanaka
健一郎 田中
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Panasonic Corp
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Panasonic Corp
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Priority to JP2011199577A priority Critical patent/JP2013062127A/en
Publication of JP2013062127A publication Critical patent/JP2013062127A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of restraining color unevenness of an LED module and making it highly efficient, while maintaining desired light distribution characteristics.SOLUTION: The lighting device 10 is provided with a light source module 11 and a reflector 14. The reflector 14 is provided with a diffusion reflecting part 16 in a region in a horizontal direction which emits a color different from that in a vertical direction by more than a prescribed chromaticity, when it controls light distribution in case an emission color in the horizontal direction is different from that in the vertical direction as to the light emitted from the light source module 11.

Description

本発明は、LEDモジュールを光源として反射鏡を有する照明装置に関する。   The present invention relates to a lighting device having a reflecting mirror using an LED module as a light source.

従来より、LEDモジュールと、第1反射面と、第2反射面と、第3反射面とを備える照明装置が知られている(例えば、特許文献1参照)。
特許文献1は、第1反射面が、LEDモジュールを焦点とし、軸方向を照射方向とする回転放物面としている。
特許文献1は、第2反射面が、LEDモジュールを灯具の照射方向側から覆いLEDモジュールを第1焦点とし、軸をLEDモジュールの光軸と一致させる回転楕円面としている。
特許文献1は、第2反射面の第2焦点を焦点とし、軸方向を照射方向とする回転放物面としている。
2. Description of the Related Art Conventionally, an illumination device including an LED module, a first reflection surface, a second reflection surface, and a third reflection surface is known (see, for example, Patent Document 1).
In Patent Document 1, the first reflecting surface is a rotating paraboloid with the LED module as the focal point and the axial direction as the irradiation direction.
In Patent Document 1, the second reflecting surface is a spheroidal surface that covers the LED module from the irradiation direction side of the lamp, sets the LED module as the first focal point, and aligns the axis with the optical axis of the LED module.
In Patent Document 1, a second paraboloid is used as a rotating paraboloid with the second focal point of the second reflecting surface as the focal point and the axial direction as the irradiation direction.

特開2001−332104号公報(図2、請求項1)JP 2001-332104 A (FIG. 2, claim 1)

特許文献1は、奥行にそれ程に影響を与えることなく1つのLEDモジュールからの発光面積を拡大できる。
しかし、特許文献1は、LEDモジュールからの角度による発光色が異なるため、光学系で配光した場合に、照射面に色むらが生じてしまう。
Patent document 1 can expand the light emission area from one LED module, without affecting the depth so much.
However, since the light emission color according to the angle from the LED module is different in Patent Document 1, color unevenness occurs on the irradiated surface when the light is distributed by the optical system.

本発明は、前述した課題を解決するためになされたものであり、その目的は、LEDモジュールの色むらを抑制でき、所望の配光特性を維持したまま高効率にできる照明装置を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an illumination device that can suppress color unevenness of an LED module and can achieve high efficiency while maintaining desired light distribution characteristics. It is in.

本発明に係る照明装置は、光源モジュールと、反射鏡とを備え、前記反射鏡は、前記光源モジュールから発せられる光のうちの鉛直方向の発光色に対して水平方向の発光色が異なる場合に配光制御する際に、鉛直方向とは所定の色度以上異なる色を発する水平方向の領域の拡散反射部を設ける。   An illuminating device according to the present invention includes a light source module and a reflecting mirror, and the reflecting mirror has a light emission color in a horizontal direction different from a light emission color in a vertical direction of light emitted from the light source module. When the light distribution control is performed, a diffuse reflection unit is provided in a horizontal region that emits a color different from the vertical direction by a predetermined chromaticity or more.

本発明に係る照明装置によれば、LEDモジュールの色むらを抑制でき、所望の配光特性を維持したまま高効率にできるという効果を奏する。   According to the illumination device of the present invention, it is possible to suppress the color unevenness of the LED module, and to achieve an effect of being able to achieve high efficiency while maintaining desired light distribution characteristics.

本発明に係る一実施形態の照明装置の垂直断面図The vertical sectional view of the illuminating device of one embodiment concerning the present invention. 本発明に係る一実施形態の照明装置の光学的特性図The optical characteristic figure of the illuminating device of one Embodiment which concerns on this invention.

以下、本発明に係る一実施形態の照明装置について図面を参照して説明する。
図1に示すように、本発明に係る一実施形態の照明装置10は、LED基板12にLEDパッケージ13が封止された光源モジュールであるLEDモジュール11と、反射鏡14とを備える。
LED基板12は、不図示のプリント回路を有し、このプリント回路が不図示の電源回路に電気的に接続される。
LEDモジュール11は、LEDパッケージ13に発光色の角度分布があり、色むらを有し、ある規定の色むらの範囲を超える角度以上の光を保有している。
Hereinafter, an illumination device according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an illumination device 10 according to an embodiment of the present invention includes an LED module 11 that is a light source module in which an LED package 13 is sealed on an LED substrate 12, and a reflecting mirror 14.
The LED board 12 has a printed circuit (not shown), and this printed circuit is electrically connected to a power circuit (not shown).
The LED module 11 has an angle distribution of light emission colors in the LED package 13, has color unevenness, and holds light with an angle exceeding a specified range of color unevenness.

反射鏡14は、LEDパッケージ13の光軸Aに対して、例えば0度〜80度までの範囲θ1に金属蒸着等の鏡面15を設けている。
反射鏡14は、略半球状の均一の曲率を有する凹面に形成されている。
そして、反射鏡14は、LEDモジュール11から発せられる光のうちの鉛直方向の発光色に対して水平方向の発光色が異なる場合に配光制御する際に、鉛直方向とは所定の色度以上異なる色を発する水平方向の領域の拡散反射部16を設けている。
反射鏡14は、拡散反射部16が、LEDパッケージ13の光軸Aに対して、例えば80度〜90度までの範囲θ2に設けられている。
The reflecting mirror 14 is provided with a mirror surface 15 such as metal vapor deposition in the range θ1 of, for example, 0 to 80 degrees with respect to the optical axis A of the LED package 13.
The reflecting mirror 14 is formed in a concave surface having a substantially hemispherical uniform curvature.
The reflector 14 controls the light distribution when the light emission color in the horizontal direction is different from the light emission color in the vertical direction of the light emitted from the LED module 11, and the vertical direction is equal to or higher than a predetermined chromaticity. A diffuse reflection portion 16 is provided in a horizontal region that emits different colors.
In the reflecting mirror 14, the diffuse reflection portion 16 is provided in a range θ <b> 2 of, for example, 80 degrees to 90 degrees with respect to the optical axis A of the LED package 13.

すなわち、反射鏡14は、LEDモジュール11から発せられた光である規定の色むらの範囲を超える角度以上の光を受ける反射面が拡散反射部16に設定されている。
拡散反射部16としては、表面を梨地等の粗面化したものや、表面に拡散材などを塗布したものや、透明材料を形成して表面を粗面化したもの等が挙げられる。
反射鏡14は、鏡面15の曲面形状として、LEDパッケージ13の発光部中心を設計ポイントとして設計したものが挙げられる。
That is, the reflecting surface of the reflecting mirror 14 that receives light having an angle exceeding the range of the specified color unevenness, which is light emitted from the LED module 11, is set in the diffuse reflecting portion 16.
Examples of the diffuse reflection portion 16 include those having a roughened surface such as a satin surface, those having a surface coated with a diffusing material, and those having a roughened surface formed by forming a transparent material.
The reflecting mirror 14 may be a curved surface shape of the mirror surface 15 that is designed with the light emitting portion center of the LED package 13 as a design point.

次に、照明装置10の光学的特性について説明する。
図2に示すように、照明装置10は、LED基板12に給電されることにより、LEDパッケージ13が発光される。
そして、LEDパッケージ13からの光成分のうち、鏡面15において反射した光は、色度Δxが0.33を超えた色を発する。
Next, optical characteristics of the illumination device 10 will be described.
As shown in FIG. 2, the illumination device 10 emits light from the LED package 13 by supplying power to the LED substrate 12.
Of the light components from the LED package 13, the light reflected by the mirror surface 15 emits a color having a chromaticity Δx exceeding 0.33.

これとは異なり、照明装置10は、LEDパッケージ13からの光成分のうち、拡散反射部16において反射した光は、色度Δxが0.32〜0.33の範囲に収まることにより、鏡面15とは異なるものとして所定の色度以上異なる色を発する。
つまり、照明装置10は、LEDモジュール11から発せられた光である規定の色むらの範囲を超える角度以上の光を拡散反射部16が積極的に受けて拡散させることになる。
On the other hand, the illumination device 10 reflects the light reflected from the diffuse reflection unit 16 out of the light components from the LED package 13 so that the chromaticity Δx falls within the range of 0.32 to 0.33. A color different from a predetermined chromaticity is emitted.
That is, in the illuminating device 10, the diffuse reflection unit 16 actively receives and diffuses light having an angle exceeding a specified color unevenness range, which is light emitted from the LED module 11.

以上、説明した本発明に係る一実施形態の照明装置10によれば、LEDモジュール11から発せられた光である規定の色むらの範囲を超える角度以上の光を拡散反射部16が受けて拡散させる。
従って、照明装置10によれば、LEDモジュール11の色むらを抑制でき、所望の配光特性を維持したまま高効率にできる。
As described above, according to the illuminating device 10 of the embodiment according to the present invention described above, the diffuse reflection unit 16 receives and diffuses the light emitted from the LED module 11 and having an angle exceeding the range of the specified color unevenness. Let
Therefore, according to the illuminating device 10, the color irregularity of the LED module 11 can be suppressed, and high efficiency can be achieved while maintaining a desired light distribution characteristic.

なお、本発明の照明装置においてLED基板、LEDパッケージ、LEDモジュール等は、前述した一実施形態に限定されるものでなく、適宜な変形や改良等が可能である。   In the lighting device of the present invention, the LED substrate, LED package, LED module, and the like are not limited to the above-described embodiment, and appropriate modifications and improvements can be made.

10 照明装置
11 LEDモジュール(光源モジュール)
14 反射鏡
16 拡散反射部
10 Illumination Device 11 LED Module (Light Source Module)
14 Reflector 16 Diffuse Reflector

Claims (1)

光源モジュールと、
反射鏡とを備え、
前記反射鏡は、前記光源モジュールから発せられる光のうちの鉛直方向の発光色に対して水平方向の発光色が異なる場合に配光制御する際に、鉛直方向とは所定の色度以上異なる色を発する水平方向の領域の拡散反射部を設ける照明装置。
A light source module;
With a reflector,
When the light distribution control is performed when the light emission color in the horizontal direction is different from the light emission color in the vertical direction among the light emitted from the light source module, the reflecting mirror is a color different from the vertical direction by a predetermined chromaticity or more. The illuminating device which provides the diffuse reflection part of the area | region of the horizontal direction which emits.
JP2011199577A 2011-09-13 2011-09-13 Lighting device Withdrawn JP2013062127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011199577A JP2013062127A (en) 2011-09-13 2011-09-13 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011199577A JP2013062127A (en) 2011-09-13 2011-09-13 Lighting device

Publications (1)

Publication Number Publication Date
JP2013062127A true JP2013062127A (en) 2013-04-04

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JP2011199577A Withdrawn JP2013062127A (en) 2011-09-13 2011-09-13 Lighting device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015016024A1 (en) * 2013-07-30 2015-02-05 シャープ株式会社 Lighting device, lighting reflector and production method therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015016024A1 (en) * 2013-07-30 2015-02-05 シャープ株式会社 Lighting device, lighting reflector and production method therefor
CN105358898A (en) * 2013-07-30 2016-02-24 夏普株式会社 Lighting device, lighting reflector and production method therefor
US20160178162A1 (en) * 2013-07-30 2016-06-23 Sharp Kabushiki Kaisha Lighting device, lighting reflector and production method therefor
JPWO2015016024A1 (en) * 2013-07-30 2017-03-02 シャープ株式会社 LIGHTING DEVICE, LIGHTING REFLECTOR AND MANUFACTURING METHOD THEREOF
US10253949B2 (en) 2013-07-30 2019-04-09 Sharp Kabushiki Kaisha Lighting device, lighting reflector and production method therefor
CN105358898B (en) * 2013-07-30 2019-08-16 夏普株式会社 Lighting device, illumination reflector and its manufacturing method

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