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JP4696780B2 - LED lighting fixtures - Google Patents

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JP4696780B2
JP4696780B2 JP2005243092A JP2005243092A JP4696780B2 JP 4696780 B2 JP4696780 B2 JP 4696780B2 JP 2005243092 A JP2005243092 A JP 2005243092A JP 2005243092 A JP2005243092 A JP 2005243092A JP 4696780 B2 JP4696780 B2 JP 4696780B2
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lens
led
led package
package
optical axis
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JP2007059618A (en
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広行 関井
孝 浅沼
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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Description

本発明は、LEDを光源として用いるLED照明器具に関する。   The present invention relates to an LED lighting apparatus using an LED as a light source.

従来から提供されているLED照明器具としては、LEDチップを光源として備えるLEDパッケージと、LEDパッケージが実装される配線基板と、配線基板を収納する器具本体と、LEDチップに対応して設けられる光制御用のレンズとを備えたものがあり、このようなLED照明器具では、LEDチップの光軸とレンズの光軸とのずれに起因する配光や照射パターンのばらつきを低減するために種々の工夫が為されている。   Conventionally provided LED lighting fixtures include an LED package having an LED chip as a light source, a wiring board on which the LED package is mounted, a fixture body that houses the wiring board, and light provided corresponding to the LED chip. There are those equipped with a control lens, and in such LED lighting fixtures, various kinds of light distribution and irradiation pattern variations caused by a deviation between the optical axis of the LED chip and the optical axis of the lens are variously used. Ingenuity has been made.

例えば、レンズ保持部材を用いてレンズをLEDパッケージに固定することで、LEDチップの光軸とレンズの光軸とを一致させるようにしたLED照明器具が提供されている(特許文献1)。   For example, an LED lighting apparatus is provided in which a lens is fixed to an LED package using a lens holding member so that the optical axis of the LED chip and the optical axis of the lens coincide with each other (Patent Document 1).

また、特許文献1には、上記のようなレンズ保持部材を設ける代わりに、レンズの下端に位置決め用の部位としてガイド部を突設するとともに、LEDパッケージの上面外周に段差を設けたLED照明器具が開示されており、この例では、レンズの下端に突設したガイド部とLEDパッケージの段差とを凹凸嵌合させた状態で、レンズとLEDパッケージとを接着剤により固定することで、LEDチップの光軸とレンズの光軸とを一致させるようにしている。
特開2005−158963号公報(第7図)
Further, in Patent Document 1, instead of providing the lens holding member as described above, an LED lighting device in which a guide portion is provided as a positioning portion at the lower end of the lens and a step is provided on the outer periphery of the upper surface of the LED package. In this example, the LED chip is fixed by bonding the lens and the LED package with an adhesive in a state in which the guide portion protruding from the lower end of the lens and the step of the LED package are fitted in an uneven shape. The optical axis of the lens is made to coincide with the optical axis of the lens.
Japanese Patent Laying-Open No. 2005-158963 (FIG. 7)

前者のLED照明器具では、LEDチップとレンズとを位置決めできるものの、新たにレンズ保持部材を設けているのでレンズ保持部材用の材料費が必要となり、またレンズ保持部材を介してLEDチップとレンズとが間接的に嵌合されるのでレンズ保持部材の成形誤差等の影響を受けてしまうという問題があった。さらには、レンズを透過した光がレンズ保持部材により反射されて再びレンズを透過した際に、光が意図しない方向へ進んで照射ムラが生じる(出射配光がいびつになる)という問題が生じていた。   In the former LED lighting apparatus, although the LED chip and the lens can be positioned, since the lens holding member is newly provided, the material cost for the lens holding member is required, and the LED chip and the lens are interposed via the lens holding member. Since these are indirectly fitted, there is a problem that they are affected by molding errors of the lens holding member. Furthermore, when the light transmitted through the lens is reflected by the lens holding member and transmitted through the lens again, there is a problem in that the light travels in an unintended direction and uneven illumination occurs (the outgoing light distribution becomes distorted). It was.

後者のLED照明器具では、レンズ保持部材を用いずに、レンズの下端を延長してなるガイド部とLEDパッケージに設けた段差とでLEDチップとレンズとの位置決めを行うので、新たにレンズ保持部材を設ける場合に比べて材料費を削減でき、またレンズとLEDパッケージとが直接的に嵌合されるので、前者の問題を解決できるとともに、位置決め精度の向上を図ることができていた。   In the latter LED lighting apparatus, since the LED chip and the lens are positioned by the guide portion formed by extending the lower end of the lens and the step provided on the LED package without using the lens holding member, a new lens holding member is used. The material cost can be reduced as compared with the case where the lens is provided, and the lens and the LED package are directly fitted, so that the former problem can be solved and the positioning accuracy can be improved.

しかしながら、後者の場合、レンズの下端に突設したガイド部は、LEDパッケージとの嵌合用の部位であるために、LEDチップの光の配光には寄与せず、このようなレンズのガイド部に入射した光は無駄になるので、光の利用効率が悪くなるという問題があった。   However, in the latter case, the guide part protruding from the lower end of the lens is a part for fitting with the LED package, so it does not contribute to the light distribution of the LED chip, and the guide part of such a lens. Since the light incident on the light is wasted, there is a problem that the light use efficiency deteriorates.

本発明は上述の点に鑑みて為されたもので、その目的は、レンズとLEDパッケージの位置決めを行え、且つ光の利用効率を向上できるLED照明器具を提供することである。   The present invention has been made in view of the above points, and an object of the present invention is to provide an LED lighting apparatus capable of positioning a lens and an LED package and improving light utilization efficiency.

上記の課題を解決するために、請求項1のLED照明器具の発明では、LEDチップを光源として備える直方体状のLEDパッケージと、LEDパッケージが配置され、底面側へ向かうに従って徐々に狭径となる円錐台状に形成された凹部を有して、LEDパッケージの光軸上に配置されるレンズとを少なくとも備え、レンズの凹部の内周面には、LEDパッケージの角部が面接触してLEDチップの光軸とレンズの光軸とが一致するようにLEDパッケージとレンズとを位置決めする四面体状の切り欠き部を設けていることを特徴とする。 In order to solve the above-mentioned problems, in the invention of the LED lighting apparatus according to claim 1, a rectangular parallelepiped LED package including an LED chip as a light source and the LED package are arranged , and gradually become narrower toward the bottom side. A concave portion formed in the shape of a truncated cone, and at least a lens disposed on the optical axis of the LED package, and the corner portion of the LED package is in surface contact with the inner peripheral surface of the concave portion of the lens. A tetrahedral cutout for positioning the LED package and the lens is provided so that the optical axis of the chip and the optical axis of the lens coincide with each other.

本発明は、レンズの凹部の内周面に、LEDパッケージの縁部と嵌合する切欠部を設けているので、LEDパッケージとレンズとの位置ずれを防止して、LEDチップの光軸とレンズの光軸とが一致した状態を保持することができるという効果があり、しかも、LEDパッケージとレンズとの位置決めを、LEDパッケージの縁部とレンズに設けた切欠部とで行うから、従来のようにレンズに位置決め用の部位を突設する場合とは異なり、入射した光が無駄になる部位をレンズに設けなくて済み、これによりLEDチップの光の利用効率を向上できるという効果がある。   In the present invention, since the notch portion that fits the edge portion of the LED package is provided on the inner peripheral surface of the concave portion of the lens, the positional deviation between the LED package and the lens is prevented, and the optical axis of the LED chip and the lens The optical axis of the LED package and the lens can be held in an aligned state, and the positioning of the LED package and the lens is performed between the edge of the LED package and the notch provided in the lens. Unlike the case where a positioning portion is provided on the lens, it is not necessary to provide the lens with a portion where the incident light is wasted. This has the effect of improving the light utilization efficiency of the LED chip.

以下に、本発明の一実施形態について図1〜図3を参照して説明する。尚、以下の説明では、図1(a)の上方をLED照明器具の上方、図1(a)の下方をLED照明器具の下方とする。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the following description, the upper side of FIG. 1A is the upper side of the LED lighting fixture, and the lower side of FIG. 1A is the lower side of the LED lighting fixture.

本実施形態のLED照明器具は、図1(a)に示すように、LEDチップ10を光源として備えるLEDパッケージ1と、該LEDパッケージ1を含む電子部品が実装されるプリント基板(図示せず)と、LEDパッケージ1が実装されたプリント基板を収納するとともに、LEDパッケージ1の光を外方へ出射させる開口を有する器具本体(図示せず)と、LEDパッケージ1が配置される凹部20を有して、LEDパッケージ1の光軸X上に配置される配光用のレンズ2と、LEDパッケージ1に動作電源を供給するための電源装置(図示せず)等とを備えており、レンズ2の凹部20の内周面には、LEDパッケージ1の縁部である角部11b…と凹凸嵌合してLEDチップ10の光軸Xとレンズの光軸Yとが一致するようにLEDパッケージ1とレンズ2とを位置決めする切欠部21…が設けられている。   As shown in FIG. 1A, the LED lighting apparatus of the present embodiment includes an LED package 1 including an LED chip 10 as a light source, and a printed circuit board (not shown) on which electronic components including the LED package 1 are mounted. And an instrument body (not shown) having an opening for emitting the light of the LED package 1 outward, and a recess 20 in which the LED package 1 is disposed. The lens 2 includes a light distribution lens 2 disposed on the optical axis X of the LED package 1, a power supply device (not shown) for supplying operation power to the LED package 1, and the like. The concave portion 20 of the LED package 1 is fitted to the corner portion 11b, which is the edge portion of the LED package 1, so that the optical axis X of the LED chip 10 and the optical axis Y of the lens coincide with each other. Notch for positioning the cage 1 and the lens 2 21 ... are provided.

LEDパッケージ1は、図1(b)に示すように、主に、LEDチップ10と、LEDチップ10を収納するパッケージ本体11とで構成され、この他、LEDチップ10の光を拡散する光拡散部材(図示せず)や、LEDチップ10の光を所定波長の光に変換する波長変換部材(図示せず)等が状況に応じてパッケージ本体11内に収納される。   As shown in FIG. 1B, the LED package 1 is mainly composed of an LED chip 10 and a package body 11 that houses the LED chip 10, and in addition, a light diffusion that diffuses the light of the LED chip 10. A member (not shown), a wavelength conversion member (not shown) that converts light of the LED chip 10 into light of a predetermined wavelength, and the like are accommodated in the package body 11 depending on the situation.

パッケージ本体11は、セラミックスや合成樹脂等を用いて上面が開口した直方体の箱状に形成されており、内部11aにLEDチップ10が収納される。また、パッケージ本体11は、LEDチップ10の各極とそれぞれ電気的に接続される電極(図示せず)を備えており、これらの図示しない電極は、NiやAuを用いて、パッケージ本体11の内部11a底面からパッケージ本体11の外側面に亘るように形成されている。そして、このパッケージ本体11の上面側の四方の角部11bがレンズ2との位置決めに用いられる。   The package main body 11 is formed in a rectangular parallelepiped box shape having an upper surface opened using ceramics, synthetic resin, or the like, and the LED chip 10 is accommodated in the inside 11a. The package body 11 includes electrodes (not shown) that are electrically connected to the respective poles of the LED chip 10. These electrodes (not shown) are made of Ni or Au, and are used for the package body 11. It is formed so as to extend from the bottom surface of the interior 11 a to the outer surface of the package body 11. The four corners 11 b on the upper surface side of the package body 11 are used for positioning with the lens 2.

レンズ2は、例えば、エポキシ樹脂等の透光性樹脂を射出成形することにより略半球状に形成されており、その下端部にはLEDパッケージ1が配置される凹部20が設けられている。この凹部20は、レンズ2の光軸Yを中心軸として上方へいくほど徐々に狭径となる円柱状の凹部であり、少なくともLEDパッケージ1の上面側を収納できる程度の大きさに形成されている。そして、レンズ2の凹部20の内周面において、パッケージ本体11の四方の角部11b…にそれぞれ対応する部位には、角部11b…とそれぞれ凹凸嵌合してLEDチップ10の光軸Xとレンズの光軸Yとが一致するように、LEDパッケージ1とレンズ2とを位置決めするための略四面体状の切欠部21…が設けられている。   The lens 2 is formed in a substantially hemispherical shape by, for example, injection molding a translucent resin such as an epoxy resin, and a concave portion 20 in which the LED package 1 is disposed is provided at a lower end portion thereof. The concave portion 20 is a cylindrical concave portion that gradually decreases in diameter as it goes upward with the optical axis Y of the lens 2 as the central axis, and is formed to have a size that can accommodate at least the upper surface side of the LED package 1. Yes. Then, on the inner peripheral surface of the concave portion 20 of the lens 2, the portions corresponding to the four corners 11b of the package main body 11 are respectively fitted with projections and depressions on the corners 11b, so that the optical axis X of the LED chip 10 A substantially tetrahedral cutout portion 21 for positioning the LED package 1 and the lens 2 is provided so that the optical axis Y of the lens coincides.

本実施形態のLED照明器具は、上記のLEDパッケージ1とレンズ2とを備えており、これらLEDパッケージ1とレンズ2とは、LEDパッケージ1の上面側をレンズ2の凹部20内に配置するとともに、LEDパッケージ1の四方の角部11b…をレンズ2の4つの切欠部21にそれぞれ凹凸嵌合させることで位置決めされ、LEDチップ10の光軸Xとレンズ2の光軸Yとが一致した状態で保持されることになる。   The LED lighting apparatus of the present embodiment includes the LED package 1 and the lens 2 described above, and the LED package 1 and the lens 2 are arranged such that the upper surface side of the LED package 1 is disposed in the concave portion 20 of the lens 2. The four corners 11b of the LED package 1 are positioned by engaging the four cutouts 21 of the lens 2 respectively so that the optical axis X of the LED chip 10 and the optical axis Y of the lens 2 coincide with each other. Will be held at.

以上述べたように、本実施形態のLED照明器具によれば、レンズ2の凹部20の内周面に、LEDパッケージ1の角部11bと凹凸嵌合してLEDチップ10の光軸Xとレンズ2の光軸Yとが一致するようにLEDパッケー1とレンズ2とを位置決めする切欠部21を設けているので、LEDパッケージ1とレンズ2との位置ずれを防止して、LEDチップ10の光軸Xとレンズ2の光軸Yとが一致した状態を保持することができる。加えて、LEDパッケージ1とレンズ2とが他の部材を介すことなく直接的に嵌合しているから、例えば、従来のようにレンズ保持部材や器具本体を介してレンズとLEDパッケージとの位置決めを行う場合とは異なり、他の部材の成形誤差等の影響を受けることがないので、位置決め精度の向上を図ることができる。   As described above, according to the LED lighting apparatus of this embodiment, the optical axis X of the LED chip 10 and the lens are fitted to the corner portion 11b of the LED package 1 on the inner peripheral surface of the concave portion 20 of the lens 2. Since the notch 21 for positioning the LED package 1 and the lens 2 is provided so that the optical axis Y of the LED 2 coincides with the optical axis Y of the LED chip 10, the positional deviation between the LED package 1 and the lens 2 is prevented, and A state in which the axis X and the optical axis Y of the lens 2 coincide with each other can be maintained. In addition, since the LED package 1 and the lens 2 are directly fitted without interposing other members, for example, the lens and the LED package can be connected via a lens holding member or an instrument body as in the past. Unlike the case of positioning, it is not affected by molding errors of other members, so that positioning accuracy can be improved.

さらに、本実施形態では、レンズ2に設けた切欠部21によってLEDパッケージ1とレンズ2との位置決めを行っているから、上記の従来例のようにレンズに位置決め用の部位であるガイド部等を突設する場合とは異なり、入射した光が無駄になる部位(上記の従来例における位置決め用の部位)をレンズ2に設けなくて済み、これによりLEDチップ10の光の利用効率の向上を図ることができる。しかも、LEDパッケージ1の角部11bと凹凸嵌合する切欠部21をレンズ2に設けることで、従来例のようにLEDパッケージに段差等を形成する必要がなくなるので、従来から使用されているLEDパッケージをそのまま用いることが可能になり、これにより製造コストの低減を図ることができる。   Furthermore, in this embodiment, since the LED package 1 and the lens 2 are positioned by the notch portion 21 provided in the lens 2, a guide portion which is a positioning portion is provided on the lens as in the conventional example described above. Unlike the case of protruding, it is not necessary to provide the lens 2 with a portion where incident light is wasted (positioning portion in the above-described conventional example), thereby improving the light use efficiency of the LED chip 10. be able to. In addition, by providing the lens 2 with the notch portion 21 that is unevenly fitted to the corner portion 11b of the LED package 1, it is not necessary to form a step or the like in the LED package as in the conventional example. The package can be used as it is, and thereby the manufacturing cost can be reduced.

加えて、LEDパッケージ1の発光面となるパッケージ本体11の上面から下方の部位でLEDパッケージ1とレンズ2とが嵌合するように、切欠部21の位置を設定しているので、LEDパッケージ1とレンズ2との嵌合部位によってLEDチップ10の光が遮られることがなくなり、これにより光の利用効率が悪化してしまうことを防止できる。   In addition, since the position of the notch portion 21 is set so that the LED package 1 and the lens 2 are fitted in a portion below the upper surface of the package main body 11 serving as a light emitting surface of the LED package 1, the LED package 1. It is possible to prevent the light from the LED chip 10 from being blocked by the fitting portion between the lens 2 and the lens 2, thereby preventing the light use efficiency from deteriorating.

ところで、本実施形態のLED照明器具としては、図1(a),(b)に示す例に限られるものではなく、例えば、図2(a),(b)に示すように、レンズの凹部が切欠部を兼用するようにしてもよい。   By the way, the LED lighting apparatus of the present embodiment is not limited to the example shown in FIGS. 1A and 1B. For example, as shown in FIGS. May also be used as a notch.

すなわち、図2(b)に示すレンズ3は、例えば、エポキシ樹脂等の透光性樹脂を射出成形することにより形成された平凸レンズであり、その平面部(下面部)にはLEDパッケージ1のパッケージ本体11の上面側と凹凸嵌合する直方体状の凹部30が設けられている。このようなレンズ3と、上記のLEDパッケージ1とは、図2(a)に示すように、LEDパッケージ1の上面側をレンズ3の凹部30に嵌合させることで位置決めされ、LEDチップ10の光軸Xとレンズ3の光軸Zとが一致した状態で保持されることになる。したがって、図2に示す例においても、上記の図1に示す例と同様の効果を得ることができる。   That is, the lens 3 shown in FIG. 2B is a plano-convex lens formed by injection-molding a translucent resin such as an epoxy resin, for example. A rectangular parallelepiped concave portion 30 is provided to fit with the upper surface side of the package body 11. Such a lens 3 and the LED package 1 are positioned by fitting the upper surface side of the LED package 1 into the concave portion 30 of the lens 3 as shown in FIG. The optical axis X and the optical axis Z of the lens 3 are held in alignment. Therefore, also in the example shown in FIG. 2, the same effect as the example shown in FIG. 1 can be obtained.

一方、図3(a),(b)に示すようなレンズ4とLEDパッケージ5とを用いたLED照明器具の例も考えられる。   On the other hand, the example of the LED lighting fixture using the lens 4 and the LED package 5 as shown to Fig.3 (a), (b) is also considered.

この場合、レンズ4は、図3(b)に示すように、エポキシ樹脂等の透光性樹脂を射出成形することにより略半球状に形成されており、その下端部にはLEDパッケージ5が配置される凹部40が設けられている。また、凹部40は、レンズ4の光軸Yを中心軸として上方へいくほど徐々に狭径となる円柱状に形成されている。   In this case, as shown in FIG. 3B, the lens 4 is formed in a substantially hemispherical shape by injection-molding a translucent resin such as an epoxy resin, and the LED package 5 is disposed at the lower end thereof. A recessed portion 40 is provided. Further, the concave portion 40 is formed in a columnar shape that gradually becomes narrower as it goes upward with the optical axis Y of the lens 4 as the central axis.

LEDパッケージ5は、図3(b)に示すように、主にLEDチップ(図示せず)と、LEDチップを収納するパッケージ本体50とで構成されている。パッケージ本体50は、セラミックスや合成樹脂を用いて上面が開口した直方体の箱状に形成されており、内部50aにLEDチップが収納される。また、パッケージ本体50は、LEDチップの各極とそれぞれ電気的に接続される電極(図示せず)を備えており、これらの図示しない電極は、NiやAuを用いて、パッケージ本体50の内部50a底面からパッケージ本体50の外側面に亘るように形成されている。加えて、このパッケージ本体50の上面部は、その略中央部にレンズ4の凹部40と凹凸嵌合する略円柱状の嵌合部50bを有するように、縁部が切り欠かれている。   As shown in FIG. 3B, the LED package 5 is mainly composed of an LED chip (not shown) and a package body 50 that houses the LED chip. The package body 50 is formed in a rectangular parallelepiped box shape with an upper surface opened using ceramics or synthetic resin, and an LED chip is accommodated in the interior 50a. The package body 50 includes electrodes (not shown) that are electrically connected to the respective poles of the LED chip. These electrodes (not shown) are made of Ni or Au, and are used as the inside of the package body 50. It is formed so as to extend from the bottom surface of 50a to the outer surface of the package body 50. In addition, the edge of the upper surface portion of the package body 50 is cut out so as to have a substantially columnar fitting portion 50b that fits with the concave portion 40 of the lens 4 at the substantially central portion thereof.

そして、このようなレンズ4とLEDパッケージ5とは、図3(a)に示すように、LEDパッケージ5の嵌合部50bをレンズ4の凹部40に嵌合させることで位置決めされ、LEDチップの光軸Xとレンズ4の光軸Yとが一致した状態で保持されることになる。   The lens 4 and the LED package 5 are positioned by fitting the fitting portion 50b of the LED package 5 into the concave portion 40 of the lens 4 as shown in FIG. The optical axis X and the optical axis Y of the lens 4 are held in alignment.

したがって、図3に示す例においても、図1に示す例と同様に、LEDパッケージ5とレンズ4との位置ずれを防止して、LEDチップの光軸Xとレンズ4の光軸Yとが一致した状態を保持することができる。しかもLEDパッケージ5とレンズ4とが他の部材を介すことなく直接的に嵌合しているから、他の部材の成形誤差等の影響を受けることがなくなり、これにより位置決め精度の向上を図ることができる。   Therefore, in the example shown in FIG. 3 as well, as in the example shown in FIG. 1, the positional deviation between the LED package 5 and the lens 4 is prevented, and the optical axis X of the LED chip and the optical axis Y of the lens 4 coincide. Can be maintained. Moreover, since the LED package 5 and the lens 4 are directly fitted without interposing other members, there is no influence of molding errors of other members, thereby improving the positioning accuracy. be able to.

さらに、レンズ4の凹部40と嵌合する嵌合部50bをLEDパッケージ5の上面部に設けることで、従来例のようにレンズに位置決め用のガイド部等を形成する必要がなくなるので、従来から使用されているレンズをそのまま用いることが可能になり、これにより製造コストの低減を図ることができる。また、入射した光が無駄になる部位(上記の従来例における位置決め用の部位)をレンズ4に設けなくて済むから、LEDチップの光の利用効率の向上を図ることができる。しかも、LEDパッケージ5の発光面となるパッケージ本体50の上面から下方の部位でLEDパッケージ5とレンズ4とが嵌合するようにしているので、このような嵌合部位によってLEDチップの光が遮られることがなくなり、これにより光の利用効率が悪化してしまうことを防止できる。   Furthermore, by providing a fitting portion 50b for fitting with the concave portion 40 of the lens 4 on the upper surface portion of the LED package 5, it becomes unnecessary to form a positioning guide portion or the like on the lens as in the conventional example. The used lens can be used as it is, and thereby the manufacturing cost can be reduced. In addition, since it is not necessary to provide the lens 4 with a portion where incident light is wasted (the positioning portion in the above-described conventional example), it is possible to improve the light utilization efficiency of the LED chip. In addition, since the LED package 5 and the lens 4 are fitted to each other at a position below the upper surface of the package body 50, which is the light emitting surface of the LED package 5, the light from the LED chip is blocked by such a fitting position. Therefore, it is possible to prevent the light use efficiency from deteriorating.

尚、以上述べた図1〜図3の例では、LEDパッケージのパッケージ本体とレンズとを別体としているが、これらを連続一体に成形するようにしてもよく、パッケージ本体とレンズとを一体とすることで、製造コストの低減を図ることができる。   In the example of FIGS. 1 to 3 described above, the package body and the lens of the LED package are separated from each other. However, they may be formed continuously and integrally, and the package body and the lens may be integrated. By doing so, the manufacturing cost can be reduced.

また尚、LEDパッケージやレンズの形状も上記の例に限られるものではなく、状況に応じて好適なものを用いることができる。   In addition, the shape of the LED package and the lens is not limited to the above example, and a suitable one can be used depending on the situation.

(a)は、本発明のLED照明器具の一例の要部の斜視図であり、(b)は、同上の分解斜視図である。(A) is a perspective view of the principal part of an example of the LED lighting fixture of this invention, (b) is an exploded perspective view same as the above. (a)は、本発明のLED照明器具の他の例の要部の斜視図であり、(b)は、同上の分解斜視図である。(A) is a perspective view of the principal part of the other example of the LED lighting fixture of this invention, (b) is an exploded perspective view same as the above. (a)は、本発明のLED照明器具のさらに他の例の要部の斜視図であり、(b)は、同上の分解斜視図である。(A) is a perspective view of the principal part of the further another example of the LED lighting fixture of this invention, (b) is an exploded perspective view same as the above.

符号の説明Explanation of symbols

1 LEDパッケージ
10 LEDチップ
11 パッケージ本体
11b 角部
2 レンズ
20 凹部
21 切欠部
X,Y 光軸
DESCRIPTION OF SYMBOLS 1 LED package 10 LED chip 11 Package main body 11b Corner | angular part 2 Lens 20 Recessed part 21 Notch part X, Y Optical axis

Claims (1)

LEDチップを光源として備える直方体状のLEDパッケージと、
LEDパッケージが配置され、底面側へ向かうに従って徐々に狭径となる円錐台状に形成された凹部を有して、LEDパッケージの光軸上に配置されるレンズとを少なくとも備え、
レンズの凹部の内周面には、LEDパッケージの角部が面接触してLEDチップの光軸とレンズの光軸とが一致するようにLEDパッケージとレンズとを位置決めする四面体状の切り欠き部を設けていることを特徴とするLED照明器具。
A rectangular parallelepiped LED package including an LED chip as a light source;
The LED package is disposed , and has at least a lens disposed on the optical axis of the LED package, having a concave portion formed in a truncated cone shape that gradually decreases in diameter toward the bottom surface side .
A tetrahedral notch that positions the LED package and the lens so that the corners of the LED package are in surface contact with the inner peripheral surface of the concave portion of the lens so that the optical axis of the LED chip and the optical axis of the lens coincide with each other. The LED lighting fixture characterized by providing the part.
JP2005243092A 2005-08-24 2005-08-24 LED lighting fixtures Expired - Fee Related JP4696780B2 (en)

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JP5322292B2 (en) * 2009-06-25 2013-10-23 パナソニック株式会社 LED unit and lighting apparatus
US9385285B2 (en) * 2009-09-17 2016-07-05 Koninklijke Philips N.V. LED module with high index lens
JP5613475B2 (en) * 2010-06-25 2014-10-22 パナソニック株式会社 Light emitting device package and light emitting device package group including the same
JP2012049367A (en) * 2010-08-27 2012-03-08 Kyocera Elco Corp Semiconductor light-emitting device attachment module, semiconductor light-emitting device module, semiconductor light-emitting device lighting apparatus, and manufacturing method of semiconductor light-emitting device attachment module
CN103133918B (en) 2011-11-23 2015-11-11 财团法人工业技术研究院 Surface light source and flexible surface light source
JP2017504215A (en) * 2014-01-23 2017-02-02 コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. Light emitting device having a self-aligned preform lens

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JPH0983018A (en) * 1995-09-11 1997-03-28 Nippon Denyo Kk Light emitting diode unit
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JPS62182063A (en) * 1986-01-24 1987-08-10 松下電器産業株式会社 Electronic part aggregate
JPH04225677A (en) * 1990-12-27 1992-08-14 Matsushita Electric Ind Co Ltd Light source device for arraying light emitting diode
JPH0983018A (en) * 1995-09-11 1997-03-28 Nippon Denyo Kk Light emitting diode unit
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