JP2012004086A - Bulb compatible type led lamp and vehicular lamp - Google Patents

Bulb compatible type led lamp and vehicular lamp Download PDF

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JP2012004086A
JP2012004086A JP2010141114A JP2010141114A JP2012004086A JP 2012004086 A JP2012004086 A JP 2012004086A JP 2010141114 A JP2010141114 A JP 2010141114A JP 2010141114 A JP2010141114 A JP 2010141114A JP 2012004086 A JP2012004086 A JP 2012004086A
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led lamp
light source
led
led light
central axis
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JP5675185B2 (en
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Shinji Koizumi
信二 小泉
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Stanley Electric Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To irradiate a circumferential part of a power feeding part of an LED lamp by the light advancing to a root side of the LED lamp at a small angle to a central axis line of the LED lamp.SOLUTION: In the bulb compatible type LED lamp 100, optical axes 1a', 1b' of LED light sources 1a, 1b cross almost orthogonally a central axis line 100' of the LED lamp 100 and an incident face 2a of a light guide lens 2 and the LED light sources 1a, 1b are made to face each other, and a power feeding part 3 is placed to an end part of a root side of the LED lamp 100. A root-side end part 2bL4 of an emission face 2b of the light guide lens 2 is formed by a face crossing almost orthogonally the central axis line 100' of the LED lamp 100, and light L1a3, L1b3 irradiated from the LED light sources 1a, 1b to a root side of the LED lamp 100 is refracted by the root-side end part 2bL4 of the incident face 2a and the emission face 2b of the light guide lens 2 and becomes light L1a3', L1b3' advancing to the root side of the LED lamp 100 to irradiate the circumferential part of a power feeding part 3 of the LED lamp 100.

Description

本発明は、複数のLED光源と、複数のLED光源からの光を導光する導光レンズと、複数のLED光源に電力を供給する給電部とを具備する電球互換型LEDランプおよびそれを有する車両用灯具に関する。   The present invention has a bulb-compatible LED lamp including a plurality of LED light sources, a light guide lens that guides light from the plurality of LED light sources, and a power supply unit that supplies power to the plurality of LED light sources, and the same. The present invention relates to a vehicular lamp.

特に、本発明は、LEDランプの中心軸線と小さい角度をなしてLEDランプの根元側に進む光によってLEDランプの給電部の周囲部分を明るく照らすことができる電球互換型LEDランプおよびそれを有する車両用灯具に関する。   In particular, the present invention relates to a bulb-compatible LED lamp capable of brightly illuminating a peripheral portion of a power feeding portion of the LED lamp by light traveling toward the base side of the LED lamp at a small angle with the central axis of the LED lamp, and a vehicle having the same It relates to a lamp.

従来から、フィラメントが発光せしめられる電球(バルブ)に対する互換性を有する電球互換型LEDランプが知られている。この種の電球互換型LEDランプの例としては、例えば特許文献1(特開2007−12821号公報)に記載されたものがある。   2. Description of the Related Art Conventionally, a light bulb compatible LED lamp having compatibility with a light bulb (bulb) that emits light from a filament is known. As an example of this type of bulb compatible LED lamp, for example, there is one described in Patent Document 1 (Japanese Patent Laid-Open No. 2007-12821).

また、従来から、複数の発光素子(LED)と、複数の発光素子(LED)からの光を導光する導光レンズ(透明キャップのレンズ部)と、複数の発光素子(LED)に電力を供給する給電部(給電用電線、回路基板の電線取り付け孔)とを具備するLEDランプが知られている。この種のLEDランプの例としては、例えば特許文献2(特開2002−157914号公報)の図3に記載されたものがある。   Conventionally, power is supplied to a plurality of light emitting elements (LEDs), a light guide lens (lens portion of a transparent cap) that guides light from the plurality of light emitting elements (LEDs), and a plurality of light emitting elements (LEDs). 2. Description of the Related Art An LED lamp including a power feeding unit (a power feeding wire and a circuit board wire mounting hole) is known. As an example of this type of LED lamp, there is one described in FIG. 3 of Patent Document 2 (Japanese Patent Laid-Open No. 2002-157914), for example.

特許文献2の図3に記載されたLEDランプでは、複数の発光素子(LED)の光軸がLEDランプの中心軸線に概略直交するように、複数の発光素子(LED)がLEDランプの中心軸線の周りに配置されている。また、入射面および出射面が導光レンズ(透明キャップのレンズ部)に設けられている。更に、導光レンズ(透明キャップのレンズ部)の入射面と複数の発光素子(LED)とが対向するように、導光レンズ(透明キャップのレンズ部)が複数の発光素子(LED)の周りに配置されている。また、給電部(給電用電線、回路基板の電線取り付け孔)が、LEDランプの根元側(特許文献2の図3の下側)の端部に配置されている。   In the LED lamp described in FIG. 3 of Patent Document 2, the plurality of light emitting elements (LEDs) are center axes of the LED lamps so that the optical axes of the plurality of light emitting elements (LEDs) are substantially orthogonal to the center axis of the LED lamps. Are arranged around. In addition, the entrance surface and the exit surface are provided on the light guide lens (lens portion of the transparent cap). Further, the light guide lens (lens portion of the transparent cap) is arranged around the plurality of light emitting elements (LEDs) so that the incident surface of the light guide lens (lens portion of the transparent cap) and the plurality of light emitting elements (LEDs) face each other. Is arranged. In addition, a power feeding portion (a power feeding wire, a wire mounting hole for a circuit board) is disposed at an end portion on the base side of the LED lamp (the lower side in FIG. 3 of Patent Document 2).

特開2007−12821号公報JP 2007-12821 A 特開2002−157914号公報JP 2002-157914 A 特開2009−289749号公報JP 2009-289749 A

ところで、特許文献2の図3に記載されたLEDランプでは、特許文献2の図3に示すように、導光レンズ(透明キャップのレンズ部)の出射面から出射する光の大部分が、LEDランプの中心軸線に概略直交する光になる。そのため、特許文献2の図3に記載されたLEDランプを特許文献1の図4に記載されたリフレクタに適用し、LEDランプの先端側(特許文献1の図4の上側)からリフレクタの反射面を見ると、リフレクタの反射面の一部分のみが環状に光って見え、リフレクタの反射面の大部分が暗く見えてしまう。   By the way, in the LED lamp described in FIG. 3 of patent document 2, as shown in FIG. 3 of patent document 2, most of the light emitted from the exit surface of the light guide lens (lens portion of the transparent cap) is LED. The light is approximately perpendicular to the central axis of the lamp. Therefore, the LED lamp described in FIG. 3 of Patent Document 2 is applied to the reflector described in FIG. 4 of Patent Document 1, and the reflecting surface of the reflector from the tip side of the LED lamp (upper side of FIG. 4 of Patent Document 1). When viewing, only a part of the reflecting surface of the reflector appears to shine in an annular shape, and most of the reflecting surface of the reflector appears dark.

そこで、特許文献2の図3に記載された導光レンズ(透明キャップのレンズ部)の代わりに、特許文献2の図9に記載された導光レンズ(透明キャップのレンズ部)を適用すると、特許文献2の図9に示すように、導光レンズ(透明キャップのレンズ部)の出射面から、LEDランプの中心軸線に概略直交する光のみならず、LEDランプの先端側(特許文献2の図9の上側)に進む光、および、LEDランプの根元側(特許文献2の図9の下側)に進む光を出射することができる。そのため、特許文献2の図9に記載されたLEDランプを特許文献1の図4に記載されたリフレクタに適用することにより、特許文献2の図3に記載されたLEDランプが特許文献1の図4に記載されたリフレクタに適用される場合よりも、LEDランプの先端側(特許文献1の図4の上側)からリフレクタの反射面を見た時に光って見える部分を大きくすることができる。   Therefore, instead of the light guide lens (the lens portion of the transparent cap) described in FIG. 3 of Patent Document 2, when the light guide lens (the lens portion of the transparent cap) described in FIG. 9 of Patent Document 2 is applied, As shown in FIG. 9 of Patent Document 2, not only light that is substantially orthogonal to the central axis of the LED lamp but also the front end side of the LED lamp (Patent Document 2). Light traveling to the upper side of FIG. 9 and light traveling to the base side of the LED lamp (lower side of FIG. 9 of Patent Document 2) can be emitted. Therefore, by applying the LED lamp described in FIG. 9 of Patent Document 2 to the reflector described in FIG. 4 of Patent Document 1, the LED lamp illustrated in FIG. As compared with the case of applying to the reflector described in No. 4, it is possible to enlarge the portion that appears to be shining when the reflecting surface of the reflector is viewed from the tip side of the LED lamp (upper side of FIG. 4 of Patent Document 1).

ところが、特許文献2の図9に記載されたLEDランプでは、特許文献2の図9に示すように、導光レンズ(透明キャップのレンズ部)の入射面および出射面が、複数の発光素子(LED)よりも、LEDランプの中心軸線から離れた位置に配置されている。換言すれば、特許文献2の図9に記載されたLEDランプでは、特許文献2の図9に示すように、導光レンズ(透明キャップのレンズ部)の入射面とLEDランプの中心軸線との距離が、複数の発光素子(LED)とLEDランプの中心軸線との距離より大きくなっており、導光レンズ(透明キャップのレンズ部)の出射面とLEDランプの中心軸線との距離が、複数の発光素子(LED)とLEDランプの中心軸線との距離より大きくなっている。詳細には、特許文献2の図9に記載されたLEDランプでは、導光レンズ(透明キャップのレンズ部)の出射面が、LEDランプの中心軸線に平行な円筒面によって形成されている。   However, in the LED lamp described in FIG. 9 of Patent Document 2, as shown in FIG. 9 of Patent Document 2, the incident surface and the exit surface of the light guide lens (lens portion of the transparent cap) have a plurality of light emitting elements ( It is arranged at a position farther from the central axis of the LED lamp than the LED). In other words, in the LED lamp described in FIG. 9 of Patent Document 2, as shown in FIG. 9 of Patent Document 2, the incident surface of the light guide lens (the lens portion of the transparent cap) and the central axis of the LED lamp The distance is larger than the distance between the plurality of light emitting elements (LEDs) and the center axis of the LED lamp, and the distance between the exit surface of the light guide lens (the lens portion of the transparent cap) and the center axis of the LED lamp is plural. The distance between the light emitting element (LED) and the center axis of the LED lamp is larger. Specifically, in the LED lamp described in FIG. 9 of Patent Document 2, the light exit surface of the light guide lens (the lens portion of the transparent cap) is formed by a cylindrical surface parallel to the central axis of the LED lamp.

そのため、特許文献2の図9に記載されたLEDランプでは、LEDランプの中心軸線と小さい角度をなしてLEDランプの根元側(特許文献2の図9の下側)に進む光の大部分が、導光レンズ(透明キャップのレンズ部)の出射面を透過することができず、導光レンズ(透明キャップのレンズ部)の出射面によって内面反射されてしまう。   Therefore, in the LED lamp described in FIG. 9 of Patent Document 2, most of the light that travels to the root side of the LED lamp (lower side of FIG. 9 of Patent Document 2) at a small angle with the central axis of the LED lamp. The light exiting surface of the light guide lens (lens portion of the transparent cap) cannot be transmitted, and the light is reflected from the inner surface by the light exit surface of the light guide lens (lens portion of the transparent cap).

その結果、特許文献2の図9に記載されたLEDランプでは、特許文献2の図9に示すように、導光レンズ(透明キャップのレンズ部)の出射面からLEDランプの中心軸線と大きい角度をなしてLEDランプの根元側(特許文献2の図9の下側)に進む光を出射することができるものの、導光レンズ(透明キャップのレンズ部)の出射面からLEDランプの中心軸線と小さい角度をなしてLEDランプの根元側(特許文献2の図9の下側)に進む光を出射することができない。従って、特許文献2の図9に記載されたLEDランプでは、LEDランプの中心軸線と小さい角度をなしてLEDランプの根元側(特許文献2の図9の下側)に進む光によってLEDランプの給電部(給電用電線、回路基板の電線取り付け孔)(特許文献2の図1参照)の周囲部分を明るく照らすことができない。そのため、特許文献2の図9に記載されたLEDランプが特許文献1の図4に記載されたリフレクタに適用される場合であっても、LEDランプの先端側(特許文献1の図4の上側)からリフレクタの反射面を見た時に、リフレクタの反射面のうち、LEDランプの給電部(給電用電線、回路基板の電線取り付け孔)(特許文献2の図1参照)の周囲部分が暗く見えてしまう。   As a result, in the LED lamp described in FIG. 9 of Patent Document 2, as shown in FIG. 9 of Patent Document 2, a large angle with the central axis of the LED lamp from the exit surface of the light guide lens (lens portion of the transparent cap). The light that travels to the base side of the LED lamp (lower side of FIG. 9 of Patent Document 2) can be emitted, but the central axis of the LED lamp from the exit surface of the light guide lens (lens portion of the transparent cap) It is not possible to emit light that travels toward the base side of the LED lamp (the lower side of FIG. 9 of Patent Document 2) at a small angle. Therefore, in the LED lamp described in FIG. 9 of Patent Document 2, the light of the LED lamp is caused by light traveling to the base side of the LED lamp (lower side of FIG. 9 of Patent Document 2) at a small angle with the central axis of the LED lamp. The surrounding portion of the power feeding unit (power feeding wire, wire mounting hole of the circuit board) (see FIG. 1 of Patent Document 2) cannot be illuminated brightly. Therefore, even if the LED lamp described in FIG. 9 of Patent Document 2 is applied to the reflector described in FIG. 4 of Patent Document 1, the tip side of the LED lamp (the upper side of FIG. 4 of Patent Document 1). ), When the reflective surface of the reflector is viewed, the surrounding portion of the reflector's reflective surface around the LED lamp power supply section (power supply wire, circuit board wire mounting hole) (see FIG. 1 of Patent Document 2) appears dark. End up.

前記問題点に鑑み、本発明は、LEDランプの中心軸線と小さい角度をなしてLEDランプの根元側に進む光によってLEDランプの給電部の周囲部分を明るく照らすことができる電球互換型LEDランプおよびそれを有する車両用灯具を提供することを目的とする。   In view of the above problems, the present invention provides a bulb-compatible LED lamp that can brightly illuminate the peripheral portion of the power supply portion of the LED lamp with light that travels toward the base side of the LED lamp at a small angle with the central axis of the LED lamp. It aims at providing the vehicular lamp which has it.

請求項1に記載の発明によれば、第1LED光源(1a)と、第2LED光源(1b)と、第1LED光源(1a)および第2LED光源(1b)からの光を導光する導光レンズ(2)と、第1LED光源(1a)および第2LED光源(1b)に電力を供給する給電部(3)とを具備し、
第1LED光源(1a)の光軸(1a’)および第2LED光源(1b)の光軸(1b’)がLEDランプ(100)の中心軸線(100’)に概略直交するように、第1LED光源(1a)および第2LED光源(1b)をLEDランプ(100)の中心軸線(100’)の周りに配置し、
入射面(2a)と出射面(2b)とを導光レンズ(2)に設け、
導光レンズ(2)の入射面(2a)と第1LED光源(1a)および第2LED光源(1b)とが対向するように、第1LED光源(1a)および第2LED光源(1b)の周りに導光レンズ(2)を配置し、
給電部(3)をLEDランプ(100)の根元側端部に配置した電球互換型LEDランプ(100)において、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成し、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の出射面(2b)を形成し、
第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に入射面(2a)の内側端部(2aL1)を配置し、
第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に出射面(2b)の内側端部(2bL1)を配置し、
LEDランプ(100)の中心軸線(100’)に概略直交する面によって出射面(2b)の根元側端部(2bL4)を形成し、
第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の先端側に照射された光(L1a1,L1b1)が、導光レンズ(2)の入射面(2a)および出射面(2b)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a1’,L1b1’)になり、
第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の根元側に照射された光(L1a3,L1b3)が、導光レンズ(2)の入射面(2a)および出射面(2b)の根元側端部(2bL4)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a3’,L1b3’)になり、LEDランプ(100)の給電部(3)の周囲部分に照射されることを特徴とする電球互換型LEDランプ(100)が提供される。
According to the first aspect of the present invention, the first LED light source (1a), the second LED light source (1b), and the light guide lens for guiding light from the first LED light source (1a) and the second LED light source (1b). (2) and a power supply unit (3) for supplying power to the first LED light source (1a) and the second LED light source (1b),
The first LED light source so that the optical axis (1a ′) of the first LED light source (1a) and the optical axis (1b ′) of the second LED light source (1b) are substantially orthogonal to the central axis (100 ′) of the LED lamp (100). (1a) and the second LED light source (1b) are arranged around the central axis (100 ′) of the LED lamp (100);
An entrance surface (2a) and an exit surface (2b) are provided on the light guide lens (2),
The light guide lens (2) is guided around the first LED light source (1a) and the second LED light source (1b) so that the incident surface (2a) faces the first LED light source (1a) and the second LED light source (1b). Place the optical lens (2),
In the light bulb compatible LED lamp (100) in which the power feeding part (3) is arranged at the base side end of the LED lamp (100),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2aL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) A straight line (2aL) or a curve extending to the outer end (2aL2) located on the front end side of (100), and the central axis (100 ′) of the LED lamp (100) toward the front end side of the LED lamp (100) The incident surface (2) of the light guide lens (2) is rotated by rotating a straight line (2aL) or a curve with a large distance from the center of a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). 2a),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2bL1) located closer to the root side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) The curve (2bL) extending to the tip side end (2bL3) located on the tip side of (100) is rotated around a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). To form the exit surface (2b) of the light guide lens (2),
On the straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) or the central axis of the LED lamp (100) passing through the first LED light source (1a) ( The inner end (2aL1) of the incident surface (2a) at a position closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to 100 ′),
On the straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) or the central axis of the LED lamp (100) passing through the first LED light source (1a) ( The inner end (2bL1) of the emission surface (2b) is positioned closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to 100 ′),
Forming a base side end (2bL4) of the emission surface (2b) by a surface substantially orthogonal to the central axis (100 ′) of the LED lamp (100);
The light (L1a1, L1b1) emitted from the first LED light source (1a) and the second LED light source (1b) to the tip side of the LED lamp (100) is incident on the incident surface (2a) and the emission surface (2) of the light guide lens (2). 2b) becomes light (L1a1 ′, L1b1 ′) that is refracted by the LED lamp 100 and travels to the base side of the LED lamp 100.
Lights (L1a3, L1b3) emitted from the first LED light source (1a) and the second LED light source (1b) to the base side of the LED lamp (100) are incident surfaces (2a) and emission surfaces (2a) of the light guide lens (2). 2b) is refracted by the base end portion (2bL4) and becomes light (L1a3 ′, L1b3 ′) traveling toward the base side of the LED lamp (100), and the peripheral portion of the power supply portion (3) of the LED lamp (100) A light bulb compatible LED lamp (100) is provided.

請求項2に記載の発明によれば、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成したことを特徴とする請求項1に記載の電球互換型LEDランプ(100)が提供される。   According to the second aspect of the present invention, the first LED light source (1a) from the inner end (2aL1) located closer to the base of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b). And a straight line (2aL) extending from the second LED light source (1b) to the outer end (2aL2) located on the tip side of the LED lamp (100), and the LED lamp ( The light guide lens is obtained by rotating a straight line (2aL) having a larger distance from the central axis (100 ′) of 100) around a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). The light-bulb-compatible LED lamp (100) according to claim 1, wherein the incident surface (2a) of (2) is formed.

請求項3に記載の発明によれば、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成し、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の出射面(2b)を形成したことを特徴とする請求項2に記載の電球互換型LEDランプ(100)が提供される。
According to the invention described in claim 3, the first LED light source (1a) from the inner end (2aL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b). And a straight line (2aL) extending from the second LED light source (1b) to the outer end (2aL2) located on the tip side of the LED lamp (100), and the LED lamp ( 100) by rotating a straight line (2aL) having a large distance from the central axis (100 ′) of the LED lamp (100) about the central axis (100 ′) of the LED lamp (100). Forming (2a),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2bL1) located closer to the root side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) By rotating a curve (2bL) extending to the distal end side end (2bL3) located on the distal end side of (100) around the central axis (100 ′) of the LED lamp (100), a light guide lens ( The light-emission compatible LED lamp (100) according to claim 2, wherein the light exit surface (2b) of 2) is formed.

請求項4に記載の発明によれば、第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、第1LED光源(1a)に対向する導光レンズ(2)の入射面(2a)の第1部分(2a1)を形成し、
第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2’)まで延びている直線(2aL’)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL’)または曲線を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、第2LED光源(1b)に対向する導光レンズ(2)の入射面(2a)の第2部分(2a2)を形成し、
第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第1部分(2a1)からの光を出射する導光レンズ(2)の出射面(2b)の第1部分(2b1)を形成し、
第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3’)まで延びている曲線(2bL’)を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第2部分(2a2)からの光を出射する導光レンズ(2)の出射面(2b)の第2部分(2b2)を形成したことを特徴とする請求項1に記載の電球互換型LEDランプ(100)が提供される。
According to invention of Claim 4, LED lamp (100) rather than 1st LED light source (1a) from the inner side edge part (2aL1) located in the root side of LED lamp (100) rather than 1st LED light source (1a). A straight line (2aL) or a curve extending to the outer end (2aL2) located on the front end side of the LED lamp, and the distance from the central axis (100 ′) of the LED lamp (100) toward the front end side of the LED lamp (100) The first LED light source is rotated by rotating a straight line (2aL) or a curve in which the first LED light source (1a) is increased about a straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a). Forming a first portion (2a1) of the incident surface (2a) of the light guide lens (2) facing (1a);
From the inner end (2aL1 ′) located closer to the base side of the LED lamp (100) than the second LED light source (1b) to the outer end (position closer to the tip side of the LED lamp (100) than the second LED light source (1b) ( A straight line (2aL ') extending to 2aL2'), and a straight line (2aL ') in which the distance from the central axis (100') of the LED lamp (100) increases toward the tip of the LED lamp (100). Alternatively, the curve is rotated around a straight line (1b ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the second LED light source (1b), thereby leading the second LED light source (1b). Forming a second part (2a2) of the incident surface (2a) of the optical lens (2);
From the inner end (2bL1) located on the base side of the LED lamp (100) relative to the first LED light source (1a), the tip end side end located on the tip side of the LED lamp (100) relative to the first LED light source (1a) ( The curve (2bL) extending to 2bL3) is rotated around a straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a). Forming a first portion (2b1) of the exit surface (2b) of the light guide lens (2) that emits light from the first portion (2a1) of the entrance surface (2a) of the lens (2);
The front end side end portion located on the front end side of the LED lamp (100) from the inner end portion (2bL1 ′) located on the root side of the LED lamp (100) than the second LED light source (1b). By rotating the curve (2bL ′) extending to (2bL3 ′) around a straight line (1b ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the second LED light source (1b) The second portion (2b2) of the exit surface (2b) of the light guide lens (2) that emits light from the second portion (2a2) of the entrance surface (2a) of the light guide lens (2) is formed. A light bulb compatible LED lamp (100) according to claim 1 is provided.

請求項5に記載の発明によれば、第1LED光源(1a)が実装された第1基板(4a)と、第2LED光源(1b)が実装された第2基板(4b)とを、LEDランプ(100)の中心軸線(100’)上に位置する光源支持部材(5)に接続し、
概略傘状の放熱部材(6)を光源支持部材(5)に接続すると共に、導光レンズ(2)の先端側に配置し、
概略傘状の放熱部材(6)の根元側表面によって反射面(6a)を形成し、
第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a4,L1a5,L1b4,L1b5)が放熱部材(6)の反射面(6a)によって反射され、LEDランプ(100)の先端側に照射され、
第1LED光源(1a)および第2LED光源(1b)が発生した熱が、第1基板(4a)、第2基板(4b)および光源支持部材(5)を介して放熱部材(6)に伝熱され、放熱部材(6)から放熱されることを特徴とする請求項1〜4のいずれか一項に記載の電球互換型LEDランプ(100)が提供される。
According to the invention described in claim 5, the first substrate (4a) on which the first LED light source (1a) is mounted and the second substrate (4b) on which the second LED light source (1b) is mounted are connected to an LED lamp. Connected to the light source support member (5) located on the central axis (100 ′) of (100),
An approximately umbrella-shaped heat radiating member (6) is connected to the light source support member (5) and disposed on the front end side of the light guide lens (2).
A reflective surface (6a) is formed by the base-side surface of the generally umbrella-shaped heat dissipation member (6),
Of the light from the first LED light source (1a) and the second LED light source (1b), the light (L1a4, L1a5, L1b4, L1b5) that does not enter the incident surface (2a) of the light guide lens (2) is the heat radiating member (6). Is reflected by the reflective surface (6a) of the LED lamp (100) and irradiated to the tip side of the LED lamp (100),
Heat generated by the first LED light source (1a) and the second LED light source (1b) is transferred to the heat radiating member (6) through the first substrate (4a), the second substrate (4b) and the light source support member (5). Then, the bulb-compatible LED lamp (100) according to any one of claims 1 to 4, wherein heat is radiated from the heat radiating member (6).

請求項6に記載の発明によれば、概略傘状の放熱部材(6)の根元側表面と先端側表面とを連通する貫通穴(6b)を形成し、
第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a6,L1b6)が概略傘状の放熱部材(6)の貫通穴(6b)を透過し、LEDランプ(100)の先端側に照射されることを特徴とする請求項5に記載の電球互換型LEDランプ(100)が提供される。
According to invention of Claim 6, the through-hole (6b) which connects the base side surface and front-end | tip side surface of a substantially umbrella-shaped heat radiating member (6) is formed,
Of the light from the first LED light source (1a) and the second LED light source (1b), the light (L1a6, L1b6) that does not enter the incident surface (2a) of the light guide lens (2) is substantially umbrella-shaped heat dissipation member (6) The light bulb compatible LED lamp (100) according to claim 5, wherein the LED lamp (100) is irradiated through the through hole (6b) of the LED lamp (100).

請求項7に記載の発明によれば、第1LED光源(1a)および第1基板(4a)と、第2LED光源(1b)および第2基板(4b)とが、LEDランプ(100)の中心軸線(100’)を中心として180°回転対称になるように、第1LED光源(1a)と第1基板(4a)と第2LED光源(1b)と第2基板(4b)とを配置し、
光源支持部材(5)に接続される概略傘状の放熱部材(6)の根元側端部(6c)を概略コ字状に形成し、
放熱部材(6)の概略コ字状の根元側端部(6c)によって、第1基板(4a)と光源支持部材(5)と第2基板(4b)とを挟持し、固定したことを特徴とする請求項5又は6に記載の電球互換型LEDランプ(100)が提供される。
According to the seventh aspect of the present invention, the first LED light source (1a) and the first substrate (4a), and the second LED light source (1b) and the second substrate (4b) are center axes of the LED lamp (100). The first LED light source (1a), the first substrate (4a), the second LED light source (1b), and the second substrate (4b) are arranged so as to be 180 ° rotationally symmetric about (100 ′),
The base side end portion (6c) of the substantially umbrella-shaped heat radiation member (6) connected to the light source support member (5) is formed in a substantially U-shape,
The first substrate (4a), the light source support member (5), and the second substrate (4b) are sandwiched and fixed by the substantially U-shaped base side end portion (6c) of the heat radiating member (6). A bulb-compatible LED lamp (100) according to claim 5 or 6 is provided.

請求項8に記載の発明によれば、光源支持部材(5)の表面のうち、第1基板(4a)および第2基板(4b)を支持しない部分を導光レンズ(2)の入射面(2a)の側に延ばすことによって放熱部(5a)を形成し、
第1LED光源(1a)および第2LED光源(1b)が発生した熱が、第1基板(4a)および第2基板(4b)を介して光源支持部材(5)の放熱部(5a)に伝熱され、光源支持部材(5)の放熱部(5a)から放熱されることを特徴とする請求項7に記載の電球互換型LEDランプ(100)が提供される。
According to invention of Claim 8, among the surfaces of the light source support member (5), the part which does not support the 1st board | substrate (4a) and the 2nd board | substrate (4b) is made into the entrance plane (2) of a light guide lens (2). 2a) to form the heat dissipating part (5a) by extending to the side,
Heat generated by the first LED light source (1a) and the second LED light source (1b) is transferred to the heat radiating portion (5a) of the light source support member (5) via the first substrate (4a) and the second substrate (4b). The light bulb-compatible LED lamp (100) according to claim 7, wherein heat is radiated from the heat radiating portion (5a) of the light source support member (5).

請求項9に記載の発明によれば、請求項1〜8のいずれか一項に記載の電球互換型LEDランプ(100)を具備し、
LEDランプ(100)から照射される光の疑似焦点(100a)を、リフレクタ(201)の放物系反射面(201a)の焦点(200a1)上またはその近傍に配置したことを特徴とする車両用灯具(200)が提供される。
According to invention of Claim 9, it comprises the bulb compatible LED lamp (100) according to any one of Claims 1-8,
For a vehicle characterized in that a pseudo focal point (100a) of light emitted from an LED lamp (100) is arranged on or near a focal point (200a1) of a parabolic reflecting surface (201a) of a reflector (201) A lamp (200) is provided.

請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)と、第2LED光源(1b)と、第1LED光源(1a)および第2LED光源(1b)からの光を導光する導光レンズ(2)と、第1LED光源(1a)および第2LED光源(1b)に電力を供給する給電部(3)とが設けられている。また、第1LED光源(1a)の光軸(1a’)および第2LED光源(1b)の光軸(1b’)がLEDランプ(100)の中心軸線(100’)に概略直交するように、第1LED光源(1a)および第2LED光源(1b)がLEDランプ(100)の中心軸線(100’)の周りに配置されている。   In the light bulb compatible LED lamp (100) according to claim 1, light from the first LED light source (1a), the second LED light source (1b), the first LED light source (1a) and the second LED light source (1b) is guided. A light guide lens (2) that emits light, and a power supply unit (3) that supplies power to the first LED light source (1a) and the second LED light source (1b) are provided. The first LED light source (1a) and the second LED light source (1b) are arranged so that the optical axis (1a ′) and the optical axis (1b ′) of the second LED light source (1b) are substantially orthogonal to the central axis (100 ′) of the LED lamp (100). The 1 LED light source (1a) and the second LED light source (1b) are arranged around the central axis (100 ′) of the LED lamp (100).

更に、請求項1に記載の電球互換型LEDランプ(100)では、入射面(2a)と出射面(2b)とが導光レンズ(2)に設けられている。また、導光レンズ(2)の入射面(2a)と第1LED光源(1a)および第2LED光源(1b)とが対向するように、第1LED光源(1a)および第2LED光源(1b)の周りに導光レンズ(2)が配置されている。更に、給電部(3)がLEDランプ(100)の根元側端部に配置されている。   Furthermore, in the light bulb compatible LED lamp (100) according to claim 1, the incident surface (2a) and the emission surface (2b) are provided on the light guide lens (2). Further, around the first LED light source (1a) and the second LED light source (1b) so that the incident surface (2a) of the light guide lens (2) faces the first LED light source (1a) and the second LED light source (1b). A light guide lens (2) is disposed on the surface. Furthermore, the power feeding part (3) is arranged at the base side end of the LED lamp (100).

詳細には、請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)が形成されている。   Specifically, in the light bulb compatible LED lamp (100) according to claim 1, an inner end portion (located on the root side of the LED lamp (100) with respect to the first LED light source (1a) and the second LED light source (1b)) ( 2aL1) is a straight line (2aL) or a curve extending from the first LED light source (1a) and the second LED light source (1b) to the outer end (2aL2) located on the front end side of the LED lamp (100), A straight line (2aL) or a curve in which the distance from the central axis (100 ′) of the LED lamp (100) increases toward the tip of the lamp (100) is a predetermined parallel to the central axis (100 ′) of the LED lamp (100). The incident surface (2a) of the light guide lens (2) is formed by rotating around the straight line.

また、請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の出射面(2b)が形成されている。   Moreover, in the light bulb compatible LED lamp (100) according to claim 1, the inner end (2bL1) located closer to the root of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b). A curve (2bL) extending from the first LED light source (1a) and the second LED light source (1b) to the distal end side end (2bL3) located on the distal end side of the LED lamp (100) The light exit surface (2b) of the light guide lens (2) is formed by rotating around a predetermined straight line parallel to the central axis (100 ′).

そのため、請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の先端側に照射された光(L1a1,L1b1)が、導光レンズ(2)の入射面(2a)および出射面(2b)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a1’,L1b1’)になる。   Therefore, in the light bulb compatible LED lamp (100) according to claim 1, the light (L1a1, L1b1) emitted from the first LED light source (1a) and the second LED light source (1b) to the tip side of the LED lamp (100). Is refracted by the entrance surface (2a) and the exit surface (2b) of the light guide lens (2), and becomes light (L1a1 ′, L1b1 ′) traveling toward the base side of the LED lamp (100).

更に、請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に入射面(2a)の内側端部(2aL1)が配置されている。また、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に出射面(2b)の内側端部(2bL1)が配置されている。更に、LEDランプ(100)の中心軸線(100’)に概略直交する面によって出射面(2b)の根元側端部(2bL4)が形成されている。   Furthermore, in the light bulb compatible LED lamp (100) according to claim 1, on the straight line (1a ") parallel to the central axis (100 ') of the LED lamp (100) passing through the first LED light source (1a), or The incident surface (at a position closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) ( The inner end (2aL1) of 2a) is arranged. The center of the LED lamp (100) passing through the first LED light source (1a) on the straight line (1a ") parallel to the central axis (100 ') of the LED lamp (100) or passing through the first LED light source (1a). The inner end (2bL1) of the emission surface (2b) is disposed at a position closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to the axis (100 ′). Further, a root side end portion (2bL4) of the emission surface (2b) is formed by a surface substantially orthogonal to the central axis (100 ') of the LED lamp (100).

そのため、請求項1に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の根元側に照射された光(L1a3,L1b3)が、導光レンズ(2)の入射面(2a)および出射面(2b)の根元側端部(2bL4)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a3’,L1b3’)になり、LEDランプ(100)の給電部(3)の周囲部分に照射される。   Therefore, in the light bulb compatible LED lamp (100) according to claim 1, the light (L1a3, L1b3) emitted from the first LED light source (1a) and the second LED light source (1b) to the root side of the LED lamp (100). Is refracted by the base end portion (2bL4) of the incident surface (2a) and the exit surface (2b) of the light guide lens (2) and travels to the base side of the LED lamp (100) (L1a3 ′, L1b3 ′) ) And is irradiated to the peripheral portion of the power feeding section (3) of the LED lamp (100).

すなわち、請求項1に記載の電球互換型LEDランプ(100)では、LEDランプ(100)の中心軸線(100’)に概略直交する面によって出射面(2b)の根元側端部(2bL4)が形成されているため、LEDランプ(100)の中心軸線(100’)と小さい角度をなしてLEDランプ(100)の根元側に進む光(L1a3”,L1b3”)が、小さい入射角で導光レンズ(2)の出射面(2b)の根元側端部(2bL4)に入射する。その結果、請求項1に記載の電球互換型LEDランプ(100)では、小さい入射角で導光レンズ(2)の出射面(2b)の根元側端部(2bL4)に入射する光(L1a3”,L1b3”)の大部分が、出射面(2b)を透過する。   That is, in the light bulb compatible LED lamp (100) according to claim 1, the base side end (2bL4) of the emission surface (2b) is formed by a surface substantially orthogonal to the central axis (100 ′) of the LED lamp (100). Therefore, the light (L1a3 ″, L1b3 ″) traveling toward the base side of the LED lamp (100) at a small angle with the central axis (100 ′) of the LED lamp (100) is guided at a small incident angle. The light enters the base side end (2bL4) of the exit surface (2b) of the lens (2). As a result, in the light bulb compatible LED lamp (100) according to claim 1, light (L1a3 ″) incident on the base side end (2bL4) of the exit surface (2b) of the light guide lens (2) at a small incident angle. , L1b3 ") pass through the exit surface (2b).

そのため、請求項1に記載の電球互換型LEDランプ(100)によれば、LEDランプ(100)の中心軸線(100’)と小さい角度をなしてLEDランプ(100)の根元側に進む光(L1a3’,L1b3’)によってLEDランプ(100)の給電部(3)の周囲部分を明るく照らすことができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 1, light traveling toward the root side of the LED lamp (100) at a small angle with the central axis (100 ′) of the LED lamp (100) ( L1a3 ′, L1b3 ′) can brightly illuminate the peripheral portion of the power supply section (3) of the LED lamp (100).

換言すれば、請求項1に記載の電球互換型LEDランプ(100)によれば、導光レンズ(透明キャップのレンズ部)の出射面がLEDランプの中心軸線に平行な円筒面によって形成されている特許文献2の図9に記載されたLEDランプよりも、LEDランプ(100)の給電部(3)の周囲部分を明るく照らすことができる。   In other words, according to the light bulb compatible LED lamp (100) according to claim 1, the exit surface of the light guide lens (lens portion of the transparent cap) is formed by a cylindrical surface parallel to the central axis of the LED lamp. As compared with the LED lamp described in FIG. 9 of Japanese Patent Application Laid-Open No. 2003-228561, the peripheral portion of the power feeding unit (3) of the LED lamp (100) can be illuminated more brightly.

請求項2に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)が形成されている。   In the light bulb compatible LED lamp (100) according to claim 2, the first LED light source (1a) and the second LED light source (1b) from the inner end portion (2aL1) located on the root side of the LED lamp (100). A straight line (2aL) extending to the outer end (2aL2) located on the front end side of the LED lamp (100) from the 1LED light source (1a) and the second LED light source (1b), and the front end of the LED lamp (100) The straight line (2aL) whose distance from the central axis (100 ′) of the LED lamp (100) increases toward the side is rotated around a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). Thus, the incident surface (2a) of the light guide lens (2) is formed.

つまり、請求項2に記載の電球互換型LEDランプ(100)では、導光レンズ(2)の入射面(2a)が円錐面によって構成されている。そのため、請求項2に記載の電球互換型LEDランプ(100)によれば、導光レンズ(2)の入射面(2a)および出射面(2b)が共に自由曲面によって構成される場合よりも、導光レンズ(2)の設計を容易にすることができる。   That is, in the light bulb compatible LED lamp (100) according to claim 2, the incident surface (2a) of the light guide lens (2) is constituted by a conical surface. Therefore, according to the light bulb compatible LED lamp (100) according to claim 2, than the case where both the incident surface (2a) and the emission surface (2b) of the light guide lens (2) are configured by free-form surfaces, The design of the light guide lens (2) can be facilitated.

請求項3に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の入射面(2a)が形成されている。   In the light bulb compatible LED lamp (100) according to claim 3, the first LED light source (1a) and the second LED light source (1b) from the inner end (2aL1) located closer to the root side of the LED lamp (100). A straight line (2aL) extending to the outer end (2aL2) located on the front end side of the LED lamp (100) from the 1LED light source (1a) and the second LED light source (1b), and the front end of the LED lamp (100) By rotating a straight line (2aL) whose distance from the central axis (100 ′) of the LED lamp (100) increases toward the side, the central axis (100 ′) of the LED lamp (100) is rotated around the light guide lens ( The incident surface (2a) of 2) is formed.

更に、請求項3に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の出射面(2b)が形成されている。   Furthermore, in the light bulb compatible LED lamp (100) according to claim 3, the inner end (2bL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b). A curve (2bL) extending from the first LED light source (1a) and the second LED light source (1b) to the distal end side end (2bL3) located on the distal end side of the LED lamp (100) By rotating around the central axis (100 ′), the exit surface (2b) of the light guide lens (2) is formed.

そのため、請求項3に記載の電球互換型LEDランプ(100)によれば、導光レンズ(2)の入射面(2a)の中心軸線(例えば、図7(B)中の内側端部2aL1と内側端部2bL1とを結ぶ直線、図7(B)中の内側端部2aL1’と内側端部2bL1’とを結ぶ直線)がLEDランプ(100)の中心軸線(100’)とは別個に設定され、導光レンズ(2)の出射面(2b)の中心軸線(例えば、図7(B)中の内側端部2aL1と内側端部2bL1とを結ぶ直線、図7(B)中の内側端部2aL1’と内側端部2bL1’とを結ぶ直線)がLEDランプ(100)の中心軸線(100’)とは別個に設定されている場合(例えば、図7(B)参照)よりも、導光レンズ(2)の設計を容易にすることができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 3, the center axis of the incident surface (2a) of the light guide lens (2) (for example, the inner end 2aL1 in FIG. 7B) The straight line connecting the inner end 2bL1 and the straight line connecting the inner end 2aL1 ′ and the inner end 2bL1 ′ in FIG. 7B are set separately from the central axis (100 ′) of the LED lamp (100). The central axis of the exit surface (2b) of the light guide lens (2) (for example, a straight line connecting the inner end 2aL1 and the inner end 2bL1 in FIG. 7B, the inner end in FIG. 7B) The straight line connecting the portion 2aL1 ′ and the inner end 2bL1 ′) is set separately from the central axis (100 ′) of the LED lamp (100) (see, for example, FIG. 7B). The design of the optical lens (2) can be facilitated.

請求項4に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、第1LED光源(1a)に対向する導光レンズ(2)の入射面(2a)の第1部分(2a1)が形成されている。   In the light bulb compatible LED lamp (100) according to claim 4, the inner end (2aL1) located closer to the root side of the LED lamp (100) than the first LED light source (1a) than the first LED light source (1a). A straight line (2aL) or a curve extending to the outer end (2aL2) located on the front end side of the LED lamp (100), and the central axis (100) of the LED lamp (100) toward the front end side of the LED lamp (100) Rotating the straight line (2aL) or curve that increases the distance from ') around the straight line (1a ") parallel to the central axis (100') of the LED lamp (100) passing through the first LED light source (1a) Thus, the first portion (2a1) of the incident surface (2a) of the light guide lens (2) facing the first LED light source (1a) is formed.

また、請求項4に記載の電球互換型LEDランプ(100)では、第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2’)まで延びている直線(2aL’)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL’)または曲線を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、第2LED光源(1b)に対向する導光レンズ(2)の入射面(2a)の第2部分(2a2)が形成されている。   Moreover, in the light bulb compatible LED lamp (100) according to claim 4, the second LED light source (1b) from the inner end (2aL1 ′) located closer to the root of the LED lamp (100) than the second LED light source (1b). ) Is a straight line (2aL ′) or a curve extending to the outer end portion (2aL2 ′) located on the tip side of the LED lamp (100), and the LED lamp (100) is closer to the tip side of the LED lamp (100). A straight line (1b ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the second LED light source (1b) is defined as a straight line (2aL ′) or a curve having a large distance from the central axis (100 ′) of the LED. , The second portion (2a2) of the incident surface (2a) of the light guide lens (2) facing the second LED light source (1b) is formed.

更に、請求項4に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第1部分(2a1)からの光を出射する導光レンズ(2)の出射面(2b)の第1部分(2b1)が形成されている。   Furthermore, in the light bulb compatible LED lamp (100) according to claim 4, the first LED light source (1a) from the inner end (2bL1) located closer to the root of the LED lamp (100) than the first LED light source (1a). The center axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) has a curve (2bL) extending to the tip side end (2bL3) located on the tip side of the LED lamp (100). The light exit surface of the light guide lens (2) that emits light from the first portion (2a1) of the light entrance surface (2a) of the light guide lens (2) by rotating around a straight line (1a ") parallel to the light guide A first portion (2b1) of (2b) is formed.

また、請求項4に記載の電球互換型LEDランプ(100)では、第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3’)まで延びている曲線(2bL’)を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第2部分(2a2)からの光を出射する導光レンズ(2)の出射面(2b)の第2部分(2b2)が形成されている。   Moreover, in the light bulb compatible LED lamp (100) according to claim 4, the second LED light source (1b) from the inner end (2bL1 ′) located closer to the root of the LED lamp (100) than the second LED light source (1b). ), The curve (2bL ′) extending to the front end side end (2bL3 ′) located on the front end side of the LED lamp (100) from the center axis of the LED lamp (100) passing through the second LED light source (1b) ( The light guide lens (2) emits light from the second portion (2a2) of the incident surface (2a) of the light guide lens (2) by rotating around a straight line (1b ″) parallel to 100 ′). A second portion (2b2) of the emission surface (2b) is formed.

そのため、請求項4に記載の電球互換型LEDランプ(100)によれば、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に放射状に広がりながら進む光を導光レンズ(2)の出射面(2b)の第1部分(2b1)から出射することができ、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に放射状に広がりながら進む光を導光レンズ(2)の出射面(2b)の第2部分(2b2)から出射することができる。   Therefore, according to the light bulb compatible LED lamp (100) of claim 4, the straight line (1a ") parallel to the central axis (100 ') of the LED lamp (100) passing through the first LED light source (1a) is centered. The light that travels while spreading radially can be emitted from the first portion (2b1) of the emission surface (2b) of the light guide lens (2), and the central axis of the LED lamp (100) passing through the second LED light source (1b) Light traveling while spreading radially around a straight line (1b ″) parallel to (100 ′) can be emitted from the second portion (2b2) of the emission surface (2b) of the light guide lens (2).

請求項5に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)が実装された第1基板(4a)と、第2LED光源(1b)が実装された第2基板(4b)とが、LEDランプ(100)の中心軸線(100’)上に位置する光源支持部材(5)に接続されている。更に、概略傘状の放熱部材(6)が、光源支持部材(5)に接続されると共に、導光レンズ(2)の先端側に配置されている。また、概略傘状の放熱部材(6)の根元側表面によって反射面(6a)が形成されている。   In the light bulb compatible LED lamp (100) according to claim 5, the first substrate (4a) on which the first LED light source (1a) is mounted and the second substrate (4b) on which the second LED light source (1b) is mounted. Are connected to the light source support member (5) located on the central axis (100 ′) of the LED lamp (100). Further, a substantially umbrella-shaped heat radiating member (6) is connected to the light source support member (5) and is disposed on the front end side of the light guide lens (2). Moreover, the reflective surface (6a) is formed with the base side surface of the substantially umbrella-shaped heat radiating member (6).

詳細には、請求項5に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a4,L1a5,L1b4,L1b5)が放熱部材(6)の反射面(6a)によって反射され、LEDランプ(100)の先端側に照射される。   Specifically, in the light bulb compatible LED lamp (100) according to claim 5, of the light from the first LED light source (1a) and the second LED light source (1b), the incident surface (2a) of the light guide lens (2). ) (L1a4, L1a5, L1b4, L1b5) that is not incident on the LED lamp is reflected by the reflecting surface (6a) of the heat dissipating member (6) and is applied to the front end side of the LED lamp (100).

そのため、請求項5に記載の電球互換型LEDランプ(100)によれば、外拡型リフレクタからの反射光がLEDランプの先端側に照射されない特許文献3(特開2009−289749号公報)の図7に記載されたLEDランプよりも、LEDランプ(100)から照射される光(L1a1’,L1a2’,L1a3’,L1a4’,L1a5’,L1b1’,L1b2’,L1b3’,L1b4’,L1b5’)のフィーリングを電球から照射される光のフィーリングに近づけることができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 5, the reflected light from the externally expanded reflector is not irradiated to the tip side of the LED lamp (Japanese Patent Laid-Open No. 2009-289749). Light (L1a1 ′, L1a2 ′, L1a3 ′, L1a4 ′, L1a5 ′, L1b1 ′, L1b2 ′, L1b3 ′, L1b4 ′, L1b5) than the LED lamp illustrated in FIG. The feeling of ') can be brought close to the feeling of light emitted from a light bulb.

更に、請求項5に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第2LED光源(1b)が発生した熱が、給電部(3)を介して放熱されるのみならず、第1基板(4a)、第2基板(4b)および光源支持部材(5)を介して放熱部材(6)に伝熱され、放熱部材(6)から放熱される。   Furthermore, in the light bulb compatible LED lamp (100) according to claim 5, if the heat generated by the first LED light source (1a) and the second LED light source (1b) is only dissipated through the power feeding section (3). First, heat is transferred to the heat radiating member (6) through the first substrate (4a), the second substrate (4b), and the light source support member (5), and is radiated from the heat radiating member (6).

そのため、請求項5に記載の電球互換型LEDランプ(100)によれば、放熱部材が設けられていない特許文献1および特許文献2に記載されたLEDランプよりも、第1LED光源(1a)および第2LED光源(1b)が発生した熱の放熱性を向上させることができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 5, the first LED light source (1a) and the LED lamp described in Patent Document 1 and Patent Document 2 in which the heat dissipating member is not provided are provided. The heat dissipation of the heat generated by the second LED light source (1b) can be improved.

請求項6に記載の電球互換型LEDランプ(100)では、概略傘状の放熱部材(6)の根元側表面と先端側表面とを連通する貫通穴(6b)が形成されている。更に、第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a6,L1b6)が概略傘状の放熱部材(6)の貫通穴(6b)を透過し、LEDランプ(100)の先端側に照射される。   In the light bulb compatible LED lamp (100) according to claim 6, a through hole (6b) is formed which communicates the base-side surface and the tip-side surface of the substantially umbrella-shaped heat radiating member (6). Furthermore, among the light from the first LED light source (1a) and the second LED light source (1b), the light (L1a6, L1b6) that does not enter the incident surface (2a) of the light guide lens (2) is substantially umbrella-shaped heat dissipation member ( 6) is transmitted through the through hole (6b) and irradiated to the tip side of the LED lamp (100).

そのため、請求項6に記載の電球互換型LEDランプ(100)によれば、根元側表面と先端側表面とを連通する貫通穴が外拡型リフレクタに形成されていない特開2009−289749号公報の図7に記載されたLEDランプよりも、LEDランプ(100)から照射される光(L1a1’,L1a2’,L1a3’,L1a4,L1a5,L1a6,L1b1’,L1b2’,L1b3’,L1b4,L1b5,L1b6)のフィーリングを電球から照射される光のフィーリングに近づけることができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 6, Japanese Patent Application Laid-Open No. 2009-289749 in which a through hole that communicates the base side surface and the tip side surface is not formed in the outwardly expanding reflector. The light (L1a1 ′, L1a2 ′, L1a3 ′, L1a4, L1a5, L1a6, L1b1 ′, L1b2 ′, L1b3 ′, L1b4, L1b5 from the LED lamp (100) of FIG. , L1b6) can be brought close to the feeling of light emitted from the light bulb.

請求項7に記載の電球互換型LEDランプ(100)では、第1LED光源(1a)および第1基板(4a)と、第2LED光源(1b)および第2基板(4b)とが、LEDランプ(100)の中心軸線(100’)を中心として180°回転対称になるように、第1LED光源(1a)と第1基板(4a)と第2LED光源(1b)と第2基板(4b)とが配置されている。また、光源支持部材(5)に接続される概略傘状の放熱部材(6)の根元側端部(6c)が概略コ字状に形成されている。更に、放熱部材(6)の概略コ字状の根元側端部(6c)によって、第1基板(4a)と光源支持部材(5)と第2基板(4b)とが挟持され、固定されている。   In the light bulb compatible LED lamp (100) according to claim 7, the first LED light source (1a) and the first substrate (4a), the second LED light source (1b) and the second substrate (4b) are LED lamps ( 100) and the first LED light source (1a), the first substrate (4a), the second LED light source (1b), and the second substrate (4b) so as to be 180 ° rotationally symmetric about the central axis (100 ′). Is arranged. Moreover, the base side end part (6c) of the substantially umbrella-shaped heat radiation member (6) connected to the light source support member (5) is formed in a substantially U-shape. Further, the first substrate (4a), the light source support member (5), and the second substrate (4b) are sandwiched and fixed by the substantially U-shaped base end (6c) of the heat radiating member (6). Yes.

つまり、請求項7に記載の電球互換型LEDランプ(100)では、放熱部材(6)の根元側端部(6c)が光源支持部材(5)に接続されると、放熱部材(6)の概略コ字状の根元側端部(6c)によって、第1基板(4a)と光源支持部材(5)と第2基板(4b)とが挟持され、固定される。   That is, in the light bulb compatible LED lamp (100) according to claim 7, when the base side end (6c) of the heat dissipation member (6) is connected to the light source support member (5), the heat dissipation member (6) The first substrate (4a), the light source support member (5), and the second substrate (4b) are sandwiched and fixed by the substantially U-shaped root side end (6c).

そのため、請求項7に記載の電球互換型LEDランプ(100)によれば、第1基板(4a)と光源支持部材(5)と第2基板(4b)とを固定する部材が放熱部材(6)の根元側端部(6c)とは別個に設けられている場合よりも、部品数を削減することができ、LEDランプ(100)全体のコストを削減することができる。   Therefore, according to the light bulb compatible LED lamp (100) of claim 7, the member that fixes the first substrate (4a), the light source support member (5), and the second substrate (4b) is the heat dissipation member (6). The number of parts can be reduced and the cost of the entire LED lamp (100) can be reduced as compared with the case where it is provided separately from the base end portion (6c).

請求項8に記載の電球互換型LEDランプ(100)では、光源支持部材(5)の表面のうち、第1基板(4a)および第2基板(4b)を支持しない部分を導光レンズ(2)の入射面(2a)の側に延ばすことによって放熱部(5a)が形成されている。更に、第1LED光源(1a)および第2LED光源(1b)が発生した熱が、第1基板(4a)および第2基板(4b)を介して光源支持部材(5)の放熱部(5a)に伝熱され、光源支持部材(5)の放熱部(5a)から放熱される。   In the light bulb compatible LED lamp (100) according to claim 8, a portion of the surface of the light source support member (5) that does not support the first substrate (4a) and the second substrate (4b) is guided by the light guide lens (2). ) Is extended to the incident surface (2a) side to form a heat radiation portion (5a). Furthermore, the heat generated by the first LED light source (1a) and the second LED light source (1b) passes through the first substrate (4a) and the second substrate (4b) to the heat radiation part (5a) of the light source support member (5). Heat is transferred and radiated from the heat radiating portion (5a) of the light source support member (5).

そのため、請求項8に記載の電球互換型LEDランプ(100)によれば、光源支持部材と導光レンズの入射面との間に放熱部が設けられていない特許文献2に記載されたLEDランプよりも、第1LED光源(1a)および第2LED光源(1b)が発生した熱の放熱性を向上させることができる。   Therefore, according to the light bulb compatible LED lamp (100) according to claim 8, the LED lamp described in Patent Document 2 in which no heat radiating portion is provided between the light source support member and the incident surface of the light guide lens. The heat dissipation of the heat generated by the first LED light source (1a) and the second LED light source (1b) can be improved.

詳細には、請求項8に記載の電球互換型LEDランプ(100)によれば、LEDランプ(100)全体の外形寸法を大型化させることなく第1LED光源(1a)および第2LED光源(1b)が発生した熱の放熱性を向上させることができる。   Specifically, according to the light bulb compatible LED lamp (100) according to claim 8, the first LED light source (1a) and the second LED light source (1b) without increasing the overall dimensions of the LED lamp (100). The heat dissipation of the heat generated can be improved.

請求項9に記載の車両用灯具(200)では、LEDランプ(100)から照射される光の疑似焦点(100a)が、リフレクタ(201)の放物系反射面(201a)の焦点(200a1)上またはその近傍に配置されている。   In the vehicular lamp (200) according to claim 9, the pseudo focal point (100a) of the light emitted from the LED lamp (100) is the focal point (200a1) of the parabolic reflecting surface (201a) of the reflector (201). It is arranged on or near it.

そのため、請求項9に記載の車両用灯具(200)によれば、電球(バルブ)のフィラメントがリフレクタ(201)の放物系反射面(201a)の焦点(200a1)上またはその近傍に配置されている場合と同様の配光特性を実現することができる。   Therefore, according to the vehicle lamp (200) of the ninth aspect, the filament of the bulb (bulb) is disposed on or near the focal point (200a1) of the parabolic reflection surface (201a) of the reflector (201). It is possible to realize the same light distribution characteristics as in the case of the above.

第1の実施形態の電球互換型LEDランプ100の概略的な断面を示した図である。It is the figure which showed the schematic cross section of the light bulb compatible LED lamp 100 of 1st Embodiment. 第1の実施形態の電球互換型LEDランプ100の導光レンズ2を構成する2つの部材2−1,2−2のうちの一方の部材2−1を透視して見た第1の実施形態の電球互換型LEDランプ100の斜視図である。1st Embodiment which looked through one member 2-1 of the two members 2-1 and 2-2 which comprise the light guide lens 2 of the light bulb compatible LED lamp 100 of 1st Embodiment. FIG. 2 is a perspective view of a bulb compatible LED lamp 100 of FIG. 図1(A)に示す断面内におけるLED光源1aから照射される光L1a1,L1a2,L1a3およびLED光源1bから照射される光L1b1,L1b2,L1b3の光路を示した図である。It is the figure which showed the optical path of light L1b1, L1b2, L1b3 irradiated from the light L1a1, L1a2, L1a3 irradiated from the LED light source 1a in the cross section shown to FIG. 1 (A), and LED light source 1b. 図1(A)に示す断面内におけるLED光源1aから照射される光L1a4,L1a5およびLED光源1bから照射される光L1b4,L1b5の光路を示した図である。It is the figure which showed the light path of light L1a4, L1a5 irradiated from the LED light source 1a in the cross section shown to FIG. 1 (A), and light L1b4, L1b5 irradiated from the LED light source 1b. 図1(A)に示す断面内におけるLED光源1aから照射される光L1a6およびLED光源1bから照射される光L1b6の光路を示した図である。It is the figure which showed the optical path of the light L1a6 irradiated from the LED light source 1a in the cross section shown to FIG. 1 (A), and the light L1b6 irradiated from the LED light source 1b. 図1および図2に示す第1の実施形態の電球互換型LEDランプ100が適用された車両用灯具200の概略的な断面図である。FIG. 3 is a schematic cross-sectional view of a vehicular lamp 200 to which the bulb compatible LED lamp 100 of the first embodiment shown in FIGS. 1 and 2 is applied. 第6の実施形態の電球互換型LEDランプ100の概略的な断面を示した図である。It is the figure which showed the schematic cross section of the bulb compatible LED lamp 100 of 6th Embodiment.

図1は第1の実施形態の電球互換型LEDランプ100の概略的な断面を示した図である。詳細には、図1(A)はLEDランプ100の中心軸線100’を含む平面に沿った第1の実施形態の電球互換型LEDランプ100の概略的な断面図、図1(B)は図1(A)中のLED光源1a,1b、導光レンズ2などを拡大して示した図である。図2は第1の実施形態の電球互換型LEDランプ100の導光レンズ2を構成する2つの部材2−1,2−2のうちの一方の部材2−1を透視して見た第1の実施形態の電球互換型LEDランプ100の斜視図である。図3〜図5は図1(A)に示す断面内におけるLED光源1aから照射される光L1a1,L1a2,L1a3,L1a4,L1a5,L1a6およびLED光源1bから照射される光L1b1,L1b2,L1b3,L1b4,L1b5,L1b6の光路を示した図である。   FIG. 1 is a schematic cross-sectional view of a bulb-compatible LED lamp 100 according to the first embodiment. Specifically, FIG. 1A is a schematic cross-sectional view of the bulb-compatible LED lamp 100 according to the first embodiment along a plane including the central axis 100 ′ of the LED lamp 100, and FIG. It is the figure which expanded and showed LED light source 1a, 1b, the light guide lens 2, etc. in 1 (A). FIG. 2 is a first view seen through one member 2-1 of the two members 2-1 and 2-2 constituting the light guide lens 2 of the bulb-compatible LED lamp 100 of the first embodiment. It is a perspective view of the bulb compatible LED lamp 100 of the embodiment. 3 to 5 show the light L1a1, L1a2, L1a3, L1a4, L1a5, L1a6 emitted from the LED light source 1a and the light L1b1, L1b2, L1b3 emitted from the LED light source 1b in the cross section shown in FIG. It is the figure which showed the optical path of L1b4, L1b5, and L1b6.

第1の実施形態の電球互換型LEDランプ100では、LED光源1a(図1(A)、図1(B)および図2参照)が基板4a(図1(A)および図2参照)に実装されている。また、LED光源1b(図1(A)および図1(B)参照)が基板4b(図1(A)参照)に実装されている。更に、熱伝導性材料によって形成された光源支持部材5(図1(A)参照)に対して基板4a,4bが接続されている。   In the light bulb compatible LED lamp 100 of the first embodiment, the LED light source 1a (see FIGS. 1A, 1B, and 2) is mounted on the substrate 4a (see FIGS. 1A and 2). Has been. Further, the LED light source 1b (see FIGS. 1A and 1B) is mounted on the substrate 4b (see FIG. 1A). Further, the substrates 4a and 4b are connected to a light source support member 5 (see FIG. 1A) formed of a heat conductive material.

更に、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)からの光を導光する導光レンズ2(図1(A)、図1(B)および図2参照)が光源支持部材5(図1(A)参照)に接続されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、導光レンズ2が2つの部材2−1,2−2(図1(A)および図2参照)に分割して構成されており、例えばねじ、接着剤(図示せず)などによって2つの部材2−1,2−2を結合することにより、2つの部材2−1,2−2(導光レンズ2)が光源支持部材5に固定されている。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, the light guide lens 2 (see FIG. 1A, FIG. 1B, and FIG. 2) that guides light from the LED light sources 1a and 1b (see FIG. 1A). 1A, 1B, and 2) are connected to a light source support member 5 (see FIG. 1A). Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the light guide lens 2 is divided into two members 2-1 and 2-2 (see FIGS. 1A and 2). The two members 2-1 and 2-2 (the light guide lens 2) support the light source by connecting the two members 2-1 and 2-2 with screws, an adhesive (not shown), for example. It is fixed to the member 5.

また、第1の実施形態の電球互換型LEDランプ100では、導電性材料によって形成されたハウジング8(図1(A)および図2参照)が光源支持部材5(図1(A)参照)に接続されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、ハウジング8が2つの部材8−1,8−2(図1(A)および図2参照)に分割して構成されており、図1(A)に示すように、例えばねじ9によって2つの部材8−1,8−2と光源支持部材5とが共締めされている。   In the light bulb compatible LED lamp 100 of the first embodiment, the housing 8 (see FIGS. 1A and 2) formed of a conductive material is used as the light source support member 5 (see FIG. 1A). It is connected. Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the housing 8 is divided into two members 8-1 and 8-2 (see FIG. 1A and FIG. 2). As shown in FIG. 1A, for example, the two members 8-1 and 8-2 and the light source support member 5 are fastened together by screws 9.

更に、第1の実施形態の電球互換型LEDランプ100では、電極部材11(図1(A)および図2参照)が電気絶縁性部材10を介してハウジング8(図1(A)および図2参照)に接続されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、例えば、LED光源1a,1b(図1(A)、図1(B)および図2参照)のアノード電極(図示せず)が、基板4a,4b(図1(A)および図2参照)を介してハウジング8に電気的に接続され、LED光源1a,1bのカソード電極(図示せず)が、基板4a,4bを介して電極部材11に電気的に接続されている。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, the electrode member 11 (see FIG. 1A and FIG. 2) is connected to the housing 8 (FIGS. 1A and 2) via the electrically insulating member 10. Connected). In detail, in the light bulb compatible LED lamp 100 of the first embodiment, for example, an anode electrode (not shown) of the LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2). Are electrically connected to the housing 8 via the substrates 4a and 4b (see FIGS. 1A and 2), and cathode electrodes (not shown) of the LED light sources 1a and 1b are connected via the substrates 4a and 4b. The electrode member 11 is electrically connected.

つまり、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)に電力を供給する給電部3(図1(A)および図2参照)が、ハウジング8(図1(A)および図2参照)および電極部材11(図1(A)および図2参照)によって構成され、LEDランプ100の根元側(図1(A)および図2の下側)端部に配置されている。第1の実施形態の電球互換型LEDランプ100では、給電部3が口金型に構成されているが、第2の実施形態の電球互換型LEDランプ100では、代わりに、給電部3をウエッジベース型に構成することも可能である。   That is, in the light bulb compatible LED lamp 100 according to the first embodiment, the power feeding unit 3 (FIG. 1 (FIG. 1 (FIG. 1)) supplies power to the LED light sources 1 a and 1 b (see FIG. 1 (A), FIG. A) and FIG. 2) are constituted by the housing 8 (see FIG. 1A and FIG. 2) and the electrode member 11 (see FIG. 1A and FIG. 2), and the base side of the LED lamp 100 (FIG. 1). (A) and the lower side of FIG. In the light bulb compatible LED lamp 100 of the first embodiment, the power supply unit 3 is configured as a cap. However, in the light bulb compatible LED lamp 100 of the second embodiment, the power supply unit 3 is replaced with a wedge base. It can also be configured into a mold.

また、第1の実施形態の電球互換型LEDランプ100では、熱伝導性材料によって形成された概略傘状の放熱部材6(図1(A)および図2参照)が光源支持部材5(図1(A)参照)に接続されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、図1(A)に示すように、例えばねじ7、接着剤(図示せず)などによって放熱部材6が光源支持部材5に接続されている。第1の実施形態の電球互換型LEDランプ100では、放熱部材6が設けられているが、第3の実施形態の電球互換型LEDランプ100では、代わりに、放熱部材6を省略することも可能である。   Further, in the light bulb compatible LED lamp 100 of the first embodiment, the substantially umbrella-shaped heat dissipation member 6 (see FIGS. 1A and 2) formed of a heat conductive material is the light source support member 5 (FIG. 1). (See (A)). Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 1A, the heat radiating member 6 is attached to the light source support member 5 by, for example, a screw 7 or an adhesive (not shown). It is connected. In the light bulb compatible LED lamp 100 of the first embodiment, the heat radiating member 6 is provided, but in the light bulb compatible LED lamp 100 of the third embodiment, the heat radiating member 6 can be omitted instead. It is.

更に、第1の実施形態の電球互換型LEDランプ100では、図1(A)および図1(B)に示すように、LED光源1aの光軸1a’およびLED光源1bの光軸1b’がLEDランプ100の中心軸線100’に概略直交するように、LED光源1a,1bがLEDランプ100の中心軸線100’の周りに配置されている。また、第1の実施形態の電球互換型LEDランプ100では、導光レンズ2(図1(A)、図1(B)および図2参照)の入射面2a(図1(A)、図1(B)および図2参照)とLED光源1a,1b(図1(A)、図1(B)および図2参照)とが対向するように、LED光源1a,1bの周りに導光レンズ2が配置されている。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIGS. 1A and 1B, the optical axis 1a ′ of the LED light source 1a and the optical axis 1b ′ of the LED light source 1b are LED light sources 1 a and 1 b are arranged around the central axis 100 ′ of the LED lamp 100 so as to be substantially orthogonal to the central axis 100 ′ of the LED lamp 100. Further, in the light bulb compatible LED lamp 100 of the first embodiment, the incident surface 2a (FIGS. 1A and 1) of the light guide lens 2 (see FIGS. 1A, 1B, and 2) is used. The light guide lens 2 is disposed around the LED light sources 1a and 1b so that the LED light sources 1a and 1b (see FIG. 1A, FIG. 1B and FIG. 2) face each other. Is arranged.

詳細には、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)よりもLEDランプ100の根元側(図1(A)、図1(B)および図2の下側)に位置する内側端部2aL1(図1(B)参照)からLED光源1a,1bよりもLEDランプ100の先端側(図1(A)、図1(B)および図2の上側)に位置する外側端部2aL2(図1(B)参照)まで延びている直線2aL(図1(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図1(A)および図1(B)参照)からの距離が大きくなる直線2aLを、LEDランプ100の中心軸線100’を中心に回転させることによって、導光レンズ2(図1(A)、図1(B)および図2参照)の入射面2a(図1(A)、図1(B)および図2参照)が形成されている。   Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the root side of the LED lamp 100 (see FIG. 1A, FIG. 1B and FIG. 2) than the LED light sources 1a and 1b (see FIG. 1A, FIG. 1B and FIG. 2). 1 (A), FIG. 1 (B), and the lower side of FIG. 2) from the inner end 2aL1 (see FIG. 1 (B)) to the front end side of the LED lamp 100 (FIG. A), a straight line 2aL (see FIG. 1 (B)) extending to the outer end 2aL2 (see FIG. 1 (B)) located on the upper side of FIG. 1 (B) and FIG. The straight line 2aL, the distance of which is larger from the central axis 100 ′ of the LED lamp 100 (see FIGS. 1A and 1B), is rotated about the central axis 100 ′ of the LED lamp 100 toward the tip end of the LED lamp 100. The light guide lens 2 (FIG. 1 (A), FIG. B) and FIG. 2) of the incident surface 2a (FIG. 1 (A), the see FIG. 1 (B) and FIG. 2) is formed.

第4の実施形態の電球互換型LEDランプ100では、代わりに、LED光源1a,1b(図1(A)、図1(B)および図2参照)よりもLEDランプ100の根元側(図1(A)、図1(B)および図2の下側)に位置する内側端部2aL1(図1(B)参照)からLED光源1a,1bよりもLEDランプ100の先端側(図1(A)、図1(B)および図2の上側)に位置する外側端部2aL2(図1(B)参照)まで延びている曲線(図示せず)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図1(A)および図1(B)参照)からの距離が大きくなる曲線を、LEDランプ100の中心軸線100’を中心に回転させることによって、導光レンズ2(図1(A)、図1(B)および図2参照)の入射面2a(図1(A)、図1(B)および図2参照)を形成することも可能である。   In the light bulb compatible LED lamp 100 of the fourth embodiment, instead of the LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2), the root side of the LED lamp 100 (FIG. 1). (A), from the inner end 2aL1 (see FIG. 1 (B)) located on the lower side of FIG. 1 (B) and FIG. 2) from the LED light source 1a, 1b to the tip side of the LED lamp 100 (FIG. 1 (A). ), A curve (not shown) extending to the outer end 2aL2 (see FIG. 1B) located in the upper side of FIG. 1B and FIG. The light guide lens 2 is rotated by rotating a curve whose distance from the central axis 100 ′ of the lamp 100 (see FIGS. 1A and 1B) increases around the central axis 100 ′ of the LED lamp 100. (See Fig. 1 (A), Fig. 1 (B) and Fig. 2) Incoming surface 2a of) (FIG. 1 (A), the it is possible to form the Figure 1 (B) and FIG. 2).

また、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)よりもLEDランプ100の根元側(図1(A)、図1(B)および図2の下側)に位置する内側端部2bL1(図1(B)参照)からLED光源1a,1bよりもLEDランプ100の先端側(図1(A)、図1(B)および図2の上側)に位置する先端側端部2bL3(図1(B)参照)まで延びている曲線2bL(図1(B)参照)を、LEDランプ100の中心軸線100’(図1(A)および図1(B)参照)を中心に回転させることによって、導光レンズ2(図1(A)、図1(B)および図2参照)の出射面2b(図1(A)、図1(B)および図2参照)が形成されている。   Moreover, in the light bulb compatible LED lamp 100 of the first embodiment, the base side of the LED lamp 100 (see FIG. 1 (FIG. 1 (A), FIG. 1 (B) and FIG. 2) than the LED light sources 1 a and 1 b (see FIG. A), from the inner end 2bL1 (see FIG. 1B) located on the lower side of FIG. 1B and FIG. 2 to the front end side of the LED lamp 100 from the LED light sources 1a and 1b (FIG. 1A). 1B, the curve 2bL (see FIG. 1B) extending to the tip end 2bL3 (see FIG. 1B) located on the upper side of FIG. 1B and FIG. By rotating around 100 ′ (see FIG. 1A and FIG. 1B), the exit surface 2b (see FIG. 1A, FIG. 1B and FIG. 2) of the light guide lens 2 (see FIG. 1A, FIG. 1B and FIG. 2). 1A, 1B, and 2) are formed.

そのため、第1の実施形態の電球互換型LEDランプ100では、図3(A)に示すように、LED光源1a(図1(A)参照)からLEDランプ100の先端側(図3(A)の上側)に照射された光L1a1が、導光レンズ2の入射面2aおよび出射面2bによって屈折せしめられ、LEDランプ100の根元側(図3(A)の下側)に進む光L1a1’になる。また、LED光源1b(図1(A)参照)からLEDランプ100の先端側(図3(A)の上側)に照射された光L1b1が、導光レンズ2の入射面2aおよび出射面2bによって屈折せしめられ、LEDランプ100の根元側(図3(A)の下側)に進む光L1b1’になる。   Therefore, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 3A, from the LED light source 1a (see FIG. 1A) to the tip side of the LED lamp 100 (FIG. 3A). The light L1a1 irradiated on the upper side of the light beam is refracted by the incident surface 2a and the outgoing surface 2b of the light guide lens 2, and becomes the light L1a1 ′ that travels to the base side of the LED lamp 100 (lower side in FIG. 3A). Become. Further, the light L1b1 irradiated from the LED light source 1b (see FIG. 1A) to the tip side of the LED lamp 100 (upper side in FIG. 3A) is incident on the incident surface 2a and the emission surface 2b of the light guide lens 2. The light L1b1 ′ is refracted and travels to the base side of the LED lamp 100 (the lower side in FIG. 3A).

更に、第1の実施形態の電球互換型LEDランプ100では、図1(B)に示すように、LED光源1aを通るLEDランプ100の中心軸線100’に平行な直線1a”よりもLEDランプ100の中心軸線100’に近い位置に入射面2aの内側端部2aL1が配置されている。また、LED光源1aを通るLEDランプ100の中心軸線100’に平行な直線1a”よりもLEDランプ100の中心軸線100’に近い位置に出射面2bの内側端部2bL1が配置されている。更に、LEDランプ100の中心軸線100’に概略直交する面によって出射面2bの根元側端部2bL4が形成されている。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 1B, the LED lamp 100 is more than the straight line 1a ″ parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a. The inner end 2aL1 of the incident surface 2a is disposed at a position close to the central axis 100 ′ of the LED lamp 100. Further, the LED lamp 100 is more than the straight line 1a ″ parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a. An inner end 2bL1 of the emission surface 2b is disposed at a position close to the central axis 100 ′. Furthermore, a base side end 2bL4 of the emission surface 2b is formed by a surface substantially orthogonal to the central axis 100 'of the LED lamp 100.

そのため、第1の実施形態の電球互換型LEDランプ100では、図3(B)に示すように、LED光源1aからLEDランプ100の根元側(図3(B)の下側)に照射された光L1a3が導光レンズ2の入射面2aによって屈折せしめられ、導光レンズ2の入射面2aからの光L1a3”が導光レンズ2の出射面2bの根元側端部2bL4によって屈折せしめられ、LEDランプ100の根元側(図3(B)の下側)に進む光L1a3’になり、LEDランプ100の給電部3の周囲部分に照射される。また、LED光源1bからLEDランプ100の根元側(図3(B)の下側)に照射された光L1b3が導光レンズ2の入射面2aによって屈折せしめられ、導光レンズ2の入射面2aからの光L1b3”が導光レンズ2の出射面2bの根元側端部2bL4によって屈折せしめられ、LEDランプ100の根元側(図3(B)の下側)に進む光L1b3’になり、LEDランプ100の給電部3の周囲部分に照射される。   Therefore, in the light bulb compatible LED lamp 100 according to the first embodiment, as shown in FIG. 3B, the LED light source 1a is irradiated to the base side of the LED lamp 100 (the lower side in FIG. 3B). The light L1a3 is refracted by the incident surface 2a of the light guide lens 2, and the light L1a3 ″ from the incident surface 2a of the light guide lens 2 is refracted by the root side end portion 2bL4 of the light exit surface 2b of the light guide lens 2. The light L1a3 ′ travels to the base side of the lamp 100 (the lower side in FIG. 3B) and is irradiated to the peripheral portion of the power supply unit 3 of the LED lamp 100. Further, the LED light source 1b to the base side of the LED lamp 100 The light L1b3 irradiated on the lower side of FIG. 3B is refracted by the incident surface 2a of the light guide lens 2, and the light L1b3 ″ from the incident surface 2a of the light guide lens 2 is emitted from the light guide lens 2. Surface 2b Is allowed refracted by the base-side end 2BL4, root side of the LED lamp 100 will light L1b3 'proceeding (lower side in FIG. 3 (B)), it is applied to the peripheral portion of the feeding portion 3 of the LED lamp 100.

すなわち、第1の実施形態の電球互換型LEDランプ100では、図3(B)に示すように、LEDランプ100の中心軸線100’に概略直交する面によって出射面2bの根元側端部2bL4が形成されているため、LEDランプ100の中心軸線100’と小さい角度をなしてLEDランプ100の根元側に進む光L1a3”,L1b3”が、小さい入射角で導光レンズ2の出射面2bの根元側端部2bL4に入射する。その結果、第1の実施形態の電球互換型LEDランプ100では、図3(B)に示すように、小さい入射角で導光レンズ2の出射面2bの根元側端部2bL4に入射する光L1a3”,L1b3”の大部分が、出射面2bを透過する。   That is, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 3B, the base side end portion 2bL4 of the emission surface 2b is formed by a surface substantially orthogonal to the central axis 100 ′ of the LED lamp 100. Thus, the light L1a3 ″, L1b3 ″ traveling toward the base side of the LED lamp 100 at a small angle with the central axis 100 ′ of the LED lamp 100 is formed at the base of the exit surface 2b of the light guide lens 2 at a small incident angle. The light enters the side end 2bL4. As a result, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 3 (B), the light L1a3 incident on the root side end 2bL4 of the exit surface 2b of the light guide lens 2 at a small incident angle. Most of “, L1b3” is transmitted through the emission surface 2b.

そのため、第1の実施形態の電球互換型LEDランプ100によれば、図3(B)に示すように、LEDランプ100の中心軸線100’と小さい角度をなしてLEDランプ100の根元側(図3(B)の下側)に進む光L1a3’,L1b3’によってLEDランプ100の給電部3の周囲部分を明るく照らすことができる。   Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 3B, the base side of the LED lamp 100 is formed at a small angle with the central axis 100 ′ of the LED lamp 100 (see FIG. The light L1a3 ′ and L1b3 ′ traveling to the lower side of 3 (B) can brightly illuminate the peripheral portion of the power supply unit 3 of the LED lamp 100.

更に、第1の実施形態の電球互換型LEDランプ100では、図3(A)に示すように、LED光源1aからLEDランプ100の根元側(図3(A)の下側)に照射された光L1a2が導光レンズ2の入射面2aによって屈折せしめられ、導光レンズ2の入射面2aからの光L1a2”が導光レンズ2の出射面2bによって屈折せしめられ、LEDランプ100の根元側(図3(A)の下側)に進む光L1a2’になる。また、LED光源1bからLEDランプ100の根元側(図3(A)の下側)に照射された光L1b2が導光レンズ2の入射面2aによって屈折せしめられ、導光レンズ2の入射面2aからの光L1b2”が導光レンズ2の出射面2bによって屈折せしめられ、LEDランプ100の根元側(図3(A)の下側)に進む光L1b2’になる。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 3 (A), the LED light source 1a is irradiated to the root side (the lower side of FIG. 3 (A)) of the LED lamp 100. The light L1a2 is refracted by the incident surface 2a of the light guide lens 2, and the light L1a2 ″ from the incident surface 2a of the light guide lens 2 is refracted by the output surface 2b of the light guide lens 2, and the root side ( The light L1a2 'travels to the lower side of Fig. 3A, and the light L1b2 irradiated from the LED light source 1b to the base side of the LED lamp 100 (lower side of Fig. 3A) is the light guide lens 2. The light L1b2 ″ from the incident surface 2a of the light guide lens 2 is refracted by the output surface 2b of the light guide lens 2, and is refracted by the incident surface 2a of the LED lamp 100 (under the bottom side of FIG. 3A). Go to the side) L1b2 become '.

詳細には、第1の実施形態の電球互換型LEDランプ100では、図1(B)に示すように、導光レンズ2の出射面2bの根元側端部2bL4が内側端部2bL1よりも根元側(図1(B)の下側)に突出せしめられている。また、導光レンズ2の出射面2bの外側端部2bL2が先端側端部2bL3よりも外側(LEDランプ100の中心軸線100’から離れる側)に突出せしめられている。   Specifically, in the light bulb compatible LED lamp 100 according to the first embodiment, as shown in FIG. 1B, the root side end portion 2bL4 of the light exit surface 2b of the light guide lens 2 is more rooted than the inner end portion 2bL1. It protrudes to the side (the lower side of FIG. 1B). Further, the outer end 2bL2 of the light exit surface 2b of the light guide lens 2 is protruded to the outer side (the side away from the central axis 100 'of the LED lamp 100) than the tip end 2bL3.

また、第1の実施形態の電球互換型LEDランプ100では、光源支持部材5(図1(A)参照)がLEDランプ100の中心軸線100’(図1(A)および図1(B)参照)上に配置されている。更に、概略傘状の放熱部材6(図1(A)および図2参照)が導光レンズ2(図1(A)、図1(B)および図2参照)の先端側(図1(A)および図2の上側)に配置されている。また、概略傘状の放熱部材6の根元側表面によって反射面6a(図1(A)および図2参照)が形成されている。具体的には、LEDランプ100の中心軸線100’を中心に曲線を回転させることにより得られる曲面によって、反射面6aが形成されている。   Further, in the light bulb compatible LED lamp 100 of the first embodiment, the light source support member 5 (see FIG. 1A) is the central axis 100 ′ of the LED lamp 100 (see FIGS. 1A and 1B). ) Is placed on top. Further, the substantially umbrella-shaped heat radiating member 6 (see FIGS. 1A and 2) is provided at the front end side of the light guide lens 2 (see FIGS. 1A, 1B, and 2) (see FIG. 1A). ) And the upper side of FIG. In addition, a reflective surface 6 a (see FIGS. 1A and 2) is formed by the base-side surface of the generally umbrella-shaped heat radiating member 6. Specifically, the reflecting surface 6 a is formed by a curved surface obtained by rotating a curve around the central axis 100 ′ of the LED lamp 100.

詳細には、第1の実施形態の電球互換型LEDランプ100では、図4(A)に示すように、導光レンズ2の入射面2aに入射しないLED光源1a(図1(A)参照)からの光L1a4が放熱部材6の反射面6aによって反射され、放熱部材6の反射面6aからの反射光L1a4’がLEDランプ100の先端側(図4(A)の上側)に照射される。また、導光レンズ2の入射面2aに入射しないLED光源1b(図1(A)参照)からの光L1b4が放熱部材6の反射面6aによって反射され、放熱部材6の反射面6aからの反射光L1b4’がLEDランプ100の先端側(図4(A)の上側)に照射される。   Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 4A, the LED light source 1a that does not enter the incident surface 2a of the light guide lens 2 (see FIG. 1A). Light L1a4 is reflected by the reflecting surface 6a of the heat radiating member 6, and the reflected light L1a4 'from the reflecting surface 6a of the heat radiating member 6 is irradiated to the tip side of the LED lamp 100 (upper side in FIG. 4A). Further, the light L1b4 from the LED light source 1b (see FIG. 1A) that does not enter the incident surface 2a of the light guide lens 2 is reflected by the reflective surface 6a of the heat radiating member 6, and reflected from the reflective surface 6a of the heat radiating member 6. The light L1b4 ′ is irradiated to the tip side of the LED lamp 100 (the upper side in FIG. 4A).

更に、第1の実施形態の電球互換型LEDランプ100では、図4(B)に示すように、導光レンズ2の入射面2aに入射しないLED光源1a(図1(A)参照)からの光L1a5が放熱部材6の反射面6aによって反射され、放熱部材6の反射面6aからの反射光L1a5’がLEDランプ100の先端側(図4(B)の上側)に照射される。また、導光レンズ2の入射面2aに入射しないLED光源1b(図1(A)参照)からの光L1b5が放熱部材6の反射面6aによって反射され、放熱部材6の反射面6aからの反射光L1b5’がLEDランプ100の先端側(図4(B)の上側)に照射される。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 4B, the LED light source 1a (see FIG. 1A) that does not enter the incident surface 2a of the light guide lens 2 is used. The light L1a5 is reflected by the reflecting surface 6a of the heat radiating member 6, and the reflected light L1a5 ′ from the reflecting surface 6a of the heat radiating member 6 is irradiated to the front end side (the upper side in FIG. 4B) of the LED lamp 100. Further, the light L1b5 from the LED light source 1b (see FIG. 1A) that does not enter the incident surface 2a of the light guide lens 2 is reflected by the reflective surface 6a of the heat radiating member 6, and reflected from the reflective surface 6a of the heat radiating member 6. Light L1b5 'is irradiated to the front end side of LED lamp 100 (upper side of Drawing 4 (B)).

そのため、第1の実施形態の電球互換型LEDランプ100によれば、外拡型リフレクタからの反射光がLEDランプの先端側に照射されない特開2009−289749号公報の図7に記載されたLEDランプよりも、LEDランプ100から照射される光L1a1’,L1a2’,L1a3’,L1a4’,L1a5’,L1b1’,L1b2’,L1b3’,L1b4’,L1b5’(図3(A)、図3(B)、図4(A)および図4(B)参照)のフィーリングを電球(バルブ)から照射される光のフィーリングに近づけることができる。   Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, the LED described in FIG. 7 of Japanese Patent Application Laid-Open No. 2009-289749 in which the reflected light from the externally expanded reflector is not irradiated to the tip side of the LED lamp. Light L1a1 ′, L1a2 ′, L1a3 ′, L1a4 ′, L1a5 ′, L1b1 ′, L1b2 ′, L1b3 ′, L1b4 ′, and L1b5 ′ (FIG. 3A and FIG. 3) emitted from the LED lamp 100 rather than the lamp. The feeling of (B), FIG. 4 (A), and FIG. 4 (B)) can be brought close to the feeling of light emitted from a light bulb (bulb).

また、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)が発生した熱が、給電部3(図1(A)および図2参照)を介して放熱されるのみならず、基板4a,4b(図1(A)および図2参照)および光源支持部材5(図1(A)参照)を介して放熱部材6(図1(A)および図2参照)に伝熱され、放熱部材6から放熱される。そのため、第1の実施形態の電球互換型LEDランプ100によれば、放熱部材が設けられていないLEDランプよりも、LED光源1a,1bが発生した熱の放熱性を向上させることができる。   Further, in the light bulb compatible LED lamp 100 according to the first embodiment, the heat generated by the LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2) is supplied to the power supply unit 3 (FIG. 1). The heat is not only radiated through (A) and FIG. 2), but is radiated through the substrates 4a and 4b (see FIG. 1 (A) and FIG. 2) and the light source support member 5 (see FIG. 1 (A)). Heat is transferred to the member 6 (see FIG. 1A and FIG. 2) and is radiated from the heat radiating member 6. Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, the heat dissipation of the heat generated by the LED light sources 1a and 1b can be improved as compared with the LED lamp not provided with the heat dissipation member.

更に、第1の実施形態の電球互換型LEDランプ100では、概略傘状の放熱部材6(図1(A)および図2参照)の根元側(図1(A)および図2の下側)表面と先端側(図1(A)および図2の上側)表面とを連通する貫通穴6b(図1(A)および図2参照)が形成されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、図5に示すように、LED光源1aからの光のうち、導光レンズ2の入射面2aに入射しない光L1a6が概略傘状の放熱部材6の貫通穴6bを透過し、LEDランプ100の先端側(図5の上側)に照射される。また、LED光源1bからの光のうち、導光レンズ2の入射面2aに入射しない光L1b6が概略傘状の放熱部材6の貫通穴6bを透過し、LEDランプ100の先端側(図5の上側)に照射される。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, the base side of the substantially umbrella-shaped heat radiation member 6 (see FIGS. 1A and 2) (the lower side of FIGS. 1A and 2). A through hole 6b (see FIGS. 1A and 2) is formed to communicate the surface and the tip side (the upper side in FIGS. 1A and 2). In detail, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 5, the light L1a6 that does not enter the incident surface 2a of the light guide lens 2 out of the light from the LED light source 1a is roughly umbrella. Is transmitted through the through-hole 6b of the heat radiating member 6 and irradiated to the tip side (the upper side in FIG. 5) of the LED lamp 100. In addition, among the light from the LED light source 1b, the light L1b6 that does not enter the incident surface 2a of the light guide lens 2 passes through the through-hole 6b of the substantially umbrella-shaped heat radiating member 6, and the front end side of the LED lamp 100 (see FIG. 5). (Upper side).

そのため、第1の実施形態の電球互換型LEDランプ100によれば、根元側表面と先端側表面とを連通する貫通穴が外拡型リフレクタに形成されていない特開2009−289749号公報の図7に記載されたLEDランプよりも、LEDランプ100から照射される光L1a1’,L1a2’,L1a3’,L1a4’,L1a5’,L1a6,L1b1’,L1b2’,L1b3’,L1b4’,L1b5’,L1b6(図3(A)、図3(B)、図4(A)、図4(B)および図5参照)のフィーリングを電球(バルブ)から照射される光のフィーリングに近づけることができる。   Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, a through hole that communicates the base side surface and the tip side surface is not formed in the outwardly expanding reflector. 7 than the LED lamp described in FIG. 7, the light L1a1 ′, L1a2 ′, L1a3 ′, L1a4 ′, L1a5 ′, L1a6, L1b1 ′, L1b2 ′, L1b3 ′, L1b4 ′, L1b5 ′, The feeling of L1b6 (see FIG. 3A, FIG. 3B, FIG. 4A, FIG. 4B, and FIG. 5) may be brought close to the feeling of light emitted from the bulb (bulb). it can.

また、第1の実施形態の電球互換型LEDランプ100では、LED光源1a(図1(A)、図1(B)および図2参照)および基板4a(図1(A)および図2参照)と、LED光源1b(図1(A)および図1(B)参照)および基板4b(図1(A)参照)とが、LEDランプ100の中心軸線100’(図1(A)および図1(B)参照)を中心として180°回転対称になるように、LED光源1a,1bおよび基板4a,4bが配置されている。更に、第1の実施形態の電球互換型LEDランプ100では、図1(A)に示すように、光源支持部材5に接続される概略傘状の放熱部材6の根元側端部6cが概略コ字状に形成されている。また、放熱部材6の概略コ字状の根元側端部6cによって、基板4aと光源支持部材5と基板4bとが挟持され、固定されている。   Moreover, in the light bulb compatible LED lamp 100 of the first embodiment, the LED light source 1a (see FIGS. 1A, 1B, and 2) and the substrate 4a (see FIGS. 1A and 2). The LED light source 1b (see FIGS. 1A and 1B) and the substrate 4b (see FIG. 1A) are connected to the central axis 100 ′ of the LED lamp 100 (see FIGS. 1A and 1). LED light sources 1a and 1b and substrates 4a and 4b are arranged so as to be 180 ° rotationally symmetric with respect to (see (B)). Furthermore, in the light bulb compatible LED lamp 100 according to the first embodiment, as shown in FIG. 1A, the root-side end portion 6c of the substantially umbrella-shaped heat radiating member 6 connected to the light source support member 5 is substantially connected. It is formed in a letter shape. Further, the substrate 4 a, the light source support member 5, and the substrate 4 b are sandwiched and fixed by the substantially U-shaped base side end portion 6 c of the heat radiating member 6.

つまり、第1の実施形態の電球互換型LEDランプ100では、図1(A)に示すように、放熱部材6の根元側端部6cが光源支持部材5に接続されると、放熱部材6の概略コ字状の根元側端部6cによって、基板4aと光源支持部材5と基板4bとが挟持され、固定される。そのため、第1の実施形態の電球互換型LEDランプ100によれば、基板4aと光源支持部材5と基板4bとを固定する部材が放熱部材6の根元側端部6cとは別個に設けられている場合よりも、部品数を削減することができ、LEDランプ100全体のコストを削減することができる。   That is, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 1A, when the root side end portion 6 c of the heat radiating member 6 is connected to the light source support member 5, The substrate 4a, the light source support member 5, and the substrate 4b are sandwiched and fixed by the substantially U-shaped root side end portion 6c. Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, the member that fixes the substrate 4 a, the light source support member 5, and the substrate 4 b is provided separately from the root side end portion 6 c of the heat radiating member 6. The number of components can be reduced as compared with the case where the LED lamp 100 is present, and the cost of the entire LED lamp 100 can be reduced.

更に、第1の実施形態の電球互換型LEDランプ100では、図2に示すように、光源支持部材5(図1(A)参照)の表面のうち、基板4a,4b(図1(A)および図2参照)を支持しない部分を導光レンズ2の入射面2aの側(図2の左側および右側)に延ばすことによって放熱部5aが形成されている。詳細には、第1の実施形態の電球互換型LEDランプ100では、LED光源1a,1b(図1(A)、図1(B)および図2参照)が発生した熱が、基板4a,4bを介して光源支持部材5の放熱部5aに伝熱され、光源支持部材5の放熱部5aから放熱される。そのため、第1の実施形態の電球互換型LEDランプ100によれば、光源支持部材と導光レンズの入射面との間に放熱部が設けられていない特許文献2に記載されたLEDランプよりも、LED光源1a,1bが発生した熱の放熱性を向上させることができる。   Further, in the light bulb compatible LED lamp 100 of the first embodiment, as shown in FIG. 2, among the surfaces of the light source support member 5 (see FIG. 1A), the substrates 4a and 4b (FIG. 1A). And the heat radiation part 5a is formed by extending the part which does not support (refer FIG. 2) to the incident surface 2a side (left side and right side of FIG. 2) of the light guide lens 2. FIG. Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the heat generated by the LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2) is converted into the substrates 4a and 4b. The heat is transferred to the heat radiating portion 5a of the light source support member 5 through the heat and is radiated from the heat radiating portion 5a of the light source support member 5. Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, compared to the LED lamp described in Patent Document 2 in which no heat dissipation portion is provided between the light source support member and the incident surface of the light guide lens. The heat dissipation of the heat generated by the LED light sources 1a and 1b can be improved.

つまり、第1の実施形態の電球互換型LEDランプ100では、導光レンズ2(図1(A)、図1(B)および図2参照)の入射面2a(図1(A)、図1(B)および図2参照)の内側(LEDランプ100の中心軸線100’の側)の空間が、放熱部5a(図2参照)を収容する空間として利用されている。そのため、第1の実施形態の電球互換型LEDランプ100によれば、LEDランプ100全体の外形寸法を大型化させることなくLED光源1a,1bが発生した熱の放熱性を向上させることができる。   That is, in the light bulb compatible LED lamp 100 of the first embodiment, the incident surface 2a (FIGS. 1A and 1) of the light guide lens 2 (see FIGS. 1A, 1B, and 2). The space inside (see (B) and FIG. 2) (on the side of the central axis 100 ′ of the LED lamp 100) is used as a space for accommodating the heat radiating portion 5a (see FIG. 2). Therefore, according to the light bulb compatible LED lamp 100 of the first embodiment, it is possible to improve the heat dissipation of the heat generated by the LED light sources 1a and 1b without increasing the overall dimensions of the LED lamp 100.

第1の実施形態の電球互換型LEDランプ100では、2個のLED光源1a,1b(図1(A)、図1(B)および図2参照)が、LEDランプ100の中心軸線100’(図1(A)および図1(B)参照)を中心として180°回転対称になるように配列されているが、第5の実施形態の電球互換型LEDランプ100では、代わりに、n個(nは3以上の整数)のLED光源1a,1b,…を、LEDランプ100の中心軸線100’を中心として(360/n)°回転対称になるように配列することも可能である。   In the light bulb compatible LED lamp 100 of the first embodiment, two LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2) are connected to a central axis 100 ′ ( 1 (A) and FIG. 1 (B)) are arranged so as to be 180 ° rotationally symmetric. However, in the light bulb compatible LED lamp 100 of the fifth embodiment, n ( It is also possible to arrange the LED light sources 1a, 1b,... with n being an integer of 3 or more so as to be (360 / n) ° rotationally symmetric about the central axis 100 ′ of the LED lamp 100.

詳細には、第1の実施形態の電球互換型LEDランプ100では、導光レンズ2(図1(A)、図1(B)および図2参照)の出射面2b(図1(A)および図1(B)参照)から出射する光L1a1’,L1a2’,L1a3’,L1b1’,L1b2’,L1b3’,…(図3(A)および図3(B)参照)の大部分が、LEDランプ100の中心軸線100’上に位置する疑似焦点(疑似光源点)100a(図6参照)からの放射光の光路に概略一致する光路上を進むように、LED光源1a,1b(図1(A)、図1(B)および図2参照)の位置および導光レンズ2の入射面2a(図1(A)、図1(B)および図2参照)並びに出射面2bの形状が設定されている。   Specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the light exit surface 2b (FIG. 1A) and the light guide lens 2 (see FIG. 1A, FIG. 1B, and FIG. 2). Most of the light L1a1 ′, L1a2 ′, L1a3 ′, L1b1 ′, L1b2 ′, L1b3 ′,... (See FIG. 3B) is emitted from the LED. LED light sources 1a and 1b (FIG. 1 (FIG. 1) so as to travel on an optical path substantially matching the optical path of the emitted light from the pseudo focus (pseudo light source point) 100a (see FIG. 6) located on the central axis 100 ′ of the lamp 100. A), the position of FIG. 1 (B) and FIG. 2) and the shape of the entrance surface 2a (see FIG. 1 (A), FIG. 1 (B) and FIG. 2) of the light guide lens 2 and the exit surface 2b are set. ing.

更に詳細には、第1の実施形態の電球互換型LEDランプ100では、LEDランプ100の疑似焦点(疑似光源点)100a(図6参照)が、LEDランプ100の中心軸線100’(図1(A)および図1(B)参照)に概略直交する平面であって、先端側端部2bL3(図1(B)参照)を含む平面上に配置されている。従って、第1の実施形態の電球互換型LEDランプ100では、導光レンズ2(図1(A)、図1(B)および図2参照)の出射面2b(図1(A)および図1(B)参照)から出射する光L1a1’,L1a2’,L1a3’,L1b1’,L1b2’,L1b3’,…(図3(A)および図3(B)参照)の大部分が、LEDランプ100の根元側(図3(A)および図3(B)の下側)に進む。   More specifically, in the light bulb compatible LED lamp 100 of the first embodiment, the pseudo focus (pseudo light source point) 100a (see FIG. 6) of the LED lamp 100 is connected to the central axis 100 ′ (FIG. 1 (FIG. 1)). A) and a plane that is substantially orthogonal to FIG. 1B), and is disposed on a plane that includes the tip end 2bL3 (see FIG. 1B). Therefore, in the light bulb compatible LED lamp 100 of the first embodiment, the light exit surface 2b (see FIGS. 1A and 1) of the light guide lens 2 (see FIGS. 1A, 1B, and 2). Most of the light L1a1 ′, L1a2 ′, L1a3 ′, L1b1 ′, L1b2 ′, L1b3 ′,... (See (B)) (see FIGS. 3A and 3B) is the LED lamp 100. To the root side (the lower side of FIGS. 3A and 3B).

図6は図1および図2に示す第1の実施形態の電球互換型LEDランプ100が適用された車両用灯具200の概略的な断面図である。詳細には、図6はLEDランプ100の中心軸線100’を含む平面に沿った車両用灯具200の概略的な断面図である。   FIG. 6 is a schematic cross-sectional view of a vehicular lamp 200 to which the bulb compatible LED lamp 100 of the first embodiment shown in FIGS. 1 and 2 is applied. Specifically, FIG. 6 is a schematic cross-sectional view of the vehicular lamp 200 along a plane including the central axis 100 ′ of the LED lamp 100.

図6に示す例では、LEDランプ100から照射される光L1a1’,L1a2’,L1a3’,L1b1’,L1b2’,L1b3’の疑似焦点100aが、車両用灯具200のリフレクタ201の放物系反射面201aの焦点200a1上またはその近傍に配置されている。つまり、図6に示す例では、放物系反射面201aからの反射光L1a1T,L1a2T,L1a3T,L1b1T,L1b2T,L1b3Tが概略平行な光になる。そのため、図6に示す車両用灯具200によれば、電球(バルブ)のフィラメントがリフレクタ201の放物系反射面201aの焦点200a1上またはその近傍に配置されている場合と同様の配光特性を実現することができる。詳細には、図6に示す車両用灯具200によれば、LEDランプ100の先端側(図6の上側)からリフレクタ201の放物系反射面201aを見た時に、リフレクタ201の放物系反射面201aからの反射光L1a3T,L1b3Tによって、特許文献2の図9に記載されたLEDランプが特許文献1の図4に記載されたリフレクタに適用される場合よりも、リフレクタ201の放物系反射面201aのうち、LEDランプ100の給電部3(図1(A)および図2参照)の周囲部分が明るく見えるようにすることができる。   In the example shown in FIG. 6, the pseudo focus 100a of the light L1a1 ′, L1a2 ′, L1a3 ′, L1b1 ′, L1b2 ′, and L1b3 ′ emitted from the LED lamp 100 is a parabolic reflection of the reflector 201 of the vehicular lamp 200. It is disposed on or near the focal point 200a1 of the surface 201a. That is, in the example shown in FIG. 6, the reflected lights L1a1T, L1a2T, L1a3T, L1b1T, L1b2T, and L1b3T from the parabolic reflecting surface 201a become substantially parallel light. Therefore, according to the vehicular lamp 200 shown in FIG. 6, the same light distribution characteristic as when the filament of the light bulb (bulb) is arranged on or near the focal point 200a1 of the parabolic reflecting surface 201a of the reflector 201 is obtained. Can be realized. Specifically, according to the vehicular lamp 200 shown in FIG. 6, when the parabolic reflection surface 201 a of the reflector 201 is viewed from the front end side (upper side in FIG. 6) of the LED lamp 100, the parabolic reflection of the reflector 201 is performed. Reflected light L1a3T and L1b3T from the surface 201a makes the parabolic reflection of the reflector 201 more than when the LED lamp described in FIG. 9 of Patent Document 2 is applied to the reflector described in FIG. 4 of Patent Document 1. Of the surface 201a, it is possible to make the peripheral portion of the power supply unit 3 (see FIGS. 1A and 2) of the LED lamp 100 appear bright.

詳細には、本発明者は、鋭意研究において、リフレクタ201(図6参照)の放物系反射面201a(図6参照)の焦点200a1(図6参照)上またはその近傍に電球(バルブ)のフィラメントが配置され、ストップランプの配光規格を満足している車両用灯具200に対し、電球(バルブ)を第1の実施形態の電球互換型LEDランプ100に置換する変更を行い、配光特性を検討した。その結果、第1の実施形態の電球互換型LEDランプ100が適用された車両用灯具200によっても、ストップランプの配光規格を満足させることができた。   Specifically, the present inventor has conducted an intensive study on the bulb (bulb) on or near the focal point 200a1 (see FIG. 6) of the parabolic reflecting surface 201a (see FIG. 6) of the reflector 201 (see FIG. 6). For the vehicular lamp 200 in which the filament is arranged and satisfies the light distribution standard of the stop lamp, the light bulb (bulb) is replaced with the light bulb compatible LED lamp 100 of the first embodiment, and the light distribution characteristics It was investigated. As a result, the light distribution standard of the stop lamp could be satisfied also by the vehicular lamp 200 to which the light bulb compatible LED lamp 100 of the first embodiment was applied.

更に、本発明者は、鋭意研究において、リフレクタ201(図6参照)の放物系反射面201a(図6参照)の焦点200a1(図6参照)上またはその近傍に電球(バルブ)のフィラメントが配置され、テールランプの配光規格を満足している車両用灯具200に対し、電球(バルブ)を第1の実施形態の電球互換型LEDランプ100に置換する変更を行い、配光特性を検討した。その結果、第1の実施形態の電球互換型LEDランプ100が適用された車両用灯具200によっても、テールランプの配光規格を満足させることができた。   Furthermore, the present inventor has conducted an intensive study in which a bulb (bulb) filament is placed on or near the focal point 200a1 (see FIG. 6) of the parabolic reflecting surface 201a (see FIG. 6) of the reflector 201 (see FIG. 6). For the vehicular lamp 200 arranged and satisfying the light distribution standard of the tail lamp, the light bulb (bulb) was changed to replace the light bulb compatible LED lamp 100 of the first embodiment, and the light distribution characteristics were examined. . As a result, the light distribution standard of the tail lamp can also be satisfied by the vehicular lamp 200 to which the bulb compatible LED lamp 100 of the first embodiment is applied.

図7は第6の実施形態の電球互換型LEDランプ100の概略的な断面を示した図である。詳細には、図7(A)はLEDランプ100の中心軸線100’を含む平面に沿った第6の実施形態の電球互換型LEDランプ100の概略的な断面図、図7(B)は図7(A)中のLED光源1a,1b、導光レンズ2などを拡大して示した図である。   FIG. 7 is a schematic cross-sectional view of a bulb-compatible LED lamp 100 according to the sixth embodiment. Specifically, FIG. 7A is a schematic cross-sectional view of the bulb-compatible LED lamp 100 of the sixth embodiment along a plane including the central axis 100 ′ of the LED lamp 100, and FIG. It is the figure which expanded and showed LED light source 1a, 1b, the light guide lens 2, etc. in 7 (A).

第1の実施形態の電球互換型LEDランプ100では、上述したように、LED光源1a,1b(図1(A)、図1(B)および図2参照)よりもLEDランプ100の根元側(図1(A)、図1(B)および図2の下側)に位置する内側端部2aL1(図1(B)参照)からLED光源1a,1bよりもLEDランプ100の先端側(図1(A)、図1(B)および図2の上側)に位置する外側端部2aL2(図1(B)参照)まで延びている直線2aL(図1(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図1(A)および図1(B)参照)からの距離が大きくなる直線2aLを、LEDランプ100の中心軸線100’を中心に回転させることによって、導光レンズ2(図1(A)、図1(B)および図2参照)の入射面2a(図1(A)、図1(B)および図2参照)が形成されている。   In the light bulb compatible LED lamp 100 of the first embodiment, as described above, the root side of the LED lamp 100 (see FIGS. 1A, 1B, and 2) (see FIG. 1A, FIG. 1B, and FIG. 2). From the inner end 2aL1 (see FIG. 1B) located on the lower side of FIG. 1A, FIG. 1B and FIG. (A), a straight line 2aL (see FIG. 1 (B)) extending to an outer end 2aL2 (see FIG. 1 (B)) located on the upper side of FIG. 1 (B) and FIG. The straight line 2aL, which increases the distance from the central axis 100 ′ of the LED lamp 100 (see FIGS. 1A and 1B) toward the tip end side of the LED 100, is rotated about the central axis 100 ′ of the LED lamp 100. Therefore, the light guide lens 2 (FIG. 1A) Incoming surface 2a shown in FIG. 1 (B) and FIG. 2) (FIG. 1 (A), the see FIG. 1 (B) and FIG. 2) is formed.

それに対し、第6の実施形態の電球互換型LEDランプ100では、LED光源1a(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1(図7(B)参照)からLED光源1aよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2(図7(B)参照)まで延びている直線2aL(図7(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる直線2aLを、LED光源1aを通るLEDランプ100の中心軸線100’に平行な直線1a”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1aに対向する部分2a1(図7(B)参照)が形成されている。   On the other hand, in the light bulb compatible LED lamp 100 of the sixth embodiment, the base side of the LED lamp 100 (FIG. 7A) and the figure are more than the LED light source 1a (see FIGS. 7A and 7B). 7 (B)) from the inner end 2aL1 (see FIG. 7 (B)) to the front end side of the LED lamp 100 from the LED light source 1a (upper side of FIG. 7 (A) and FIG. 7 (B)). A straight line 2aL (see FIG. 7B) extending to the outer end 2aL2 (see FIG. 7B) located at the center of the LED lamp 100 toward the tip end side of the LED lamp 100 (see FIG. 7B). 7 (A) and FIG. 7 (B)), a straight line 2aL that increases in distance from a straight line 1a ″ (see FIG. 7 (B)) parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a. By rotating it to the center A portion 2a1 (see FIG. 7B) facing the LED light source 1a of the incident surface 2a (see FIGS. 7A and 7B) of the lens 2 (see FIGS. 7A and 7B). ) Is formed.

また、第6の実施形態の電球互換型LEDランプ100では、LED光源1b(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1’(図7(B)参照)からLED光源1bよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2’(図7(B)参照)まで延びている直線2aL’(図7(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる直線2aL’を、LED光源1bを通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1bに対向する部分2a2(図7(B)参照)が形成されている。   Further, in the light bulb compatible LED lamp 100 of the sixth embodiment, the base side of the LED lamp 100 (FIG. 7A and FIG. 7) rather than the LED light source 1b (see FIG. 7A and FIG. 7B). From the inner end 2aL1 ′ (see FIG. 7B) located on the lower side of (B), the tip side of the LED lamp 100 from the LED light source 1b (upper side of FIGS. 7A and 7B). A straight line 2aL ′ (see FIG. 7B) extending to the outer end 2aL2 ′ (see FIG. 7B) located at the front end side of the LED lamp 100, and the central axis 100 ′ of the LED lamp 100 toward the tip end side. A straight line 2aL ′ that increases in distance from (see FIGS. 7A and 7B) is a straight line 1b ″ that is parallel to the central axis 100 ′ of the LED lamp 100 that passes through the LED light source 1b (FIG. 7B). ) A portion 2a2 (FIG. 7B) facing the LED light source 1b of the incident surface 2a (see FIGS. 7A and 7B) of the optical lens 2 (see FIGS. 7A and 7B). Reference) is formed.

更に、第1の実施形態の電球互換型LEDランプ100では、上述したように、LED光源1a,1b(図1(A)、図1(B)および図2参照)よりもLEDランプ100の根元側(図1(A)、図1(B)および図2の下側)に位置する内側端部2bL1(図1(B)参照)からLED光源1a,1bよりもLEDランプ100の先端側(図1(A)、図1(B)および図2の上側)に位置する先端側端部2bL3(図1(B)参照)まで延びている曲線2bL(図1(B)参照)を、LEDランプ100の中心軸線100’(図1(A)および図1(B)参照)を中心に回転させることによって、導光レンズ2(図1(A)、図1(B)および図2参照)の出射面2b(図1(A)、図1(B)および図2参照)が形成されている。   Furthermore, in the light bulb compatible LED lamp 100 of the first embodiment, as described above, the root of the LED lamp 100 is more than that of the LED light sources 1a and 1b (see FIGS. 1A, 1B, and 2). LED lamp 100 from the inner end 2bL1 (see FIG. 1 (B)) located on the side (the lower side of FIGS. 1 (A), 1 (B) and 2) (see FIG. 1 (B)). A curve 2bL (see FIG. 1 (B)) extending to the tip end 2bL3 (see FIG. 1 (B)) located in FIG. 1 (A), FIG. 1 (B) and FIG. The light guide lens 2 (see FIG. 1 (A), FIG. 1 (B) and FIG. 2) by rotating around the central axis 100 ′ of the lamp 100 (see FIG. 1 (A) and FIG. 1 (B)). 2b (see FIG. 1A, FIG. 1B, and FIG. 2) is formed.

それに対し、第6の実施形態の電球互換型LEDランプ100では、LED光源1a(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2bL1(図7(B)参照)からLED光源1aよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する先端側端部2bL3(図7(B)参照)まで延びている曲線2bL(図7(B)参照)を、LED光源1aを通るLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)に平行な直線1a”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)の部分2a1(図7(B)参照)からの光を出射する導光レンズ2の出射面2b(図7(A)および図7(B)参照)の部分2b1(図7(B)参照)が形成されている。   On the other hand, in the light bulb compatible LED lamp 100 of the sixth embodiment, the base side of the LED lamp 100 (FIG. 7A) and the figure are more than the LED light source 1a (see FIGS. 7A and 7B). 7 (B)) from the inner end 2bL1 (see FIG. 7 (B)) to the front end side of the LED lamp 100 from the LED light source 1a (upper side of FIG. 7 (A) and FIG. 7 (B)). A curve 2bL (see FIG. 7 (B)) extending to the tip end 2bL3 (see FIG. 7 (B)) located at the center of the LED lamp 100 passing through the LED light source 1a is center axis 100 ′ (FIG. 7 (A)). ) And FIG. 7B)) by rotating around a straight line 1a ″ (see FIG. 7B) parallel to the light guide lens 2 (see FIG. 7A and FIG. 7B). Portion 2a1 (see FIG. 7A) of incident surface 2a (see FIGS. 7A and 7B) (B) portion of the exit surface 2b of the light guide lens 2 for emitting light from the reference) Reference (FIG. 7 (A) and FIG. 7 (B)) 2b1 reference (FIG. 7 (B)) is formed.

また、第6の実施形態の電球互換型LEDランプ100では、LED光源1b(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2bL1’(図7(B)参照)からLED光源1bよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する先端側端部2bL3’(図7(B)参照)まで延びている曲線2bL’(図7(B)参照)を、LED光源1bを通るLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)に平行な直線1b”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)の部分2a2(図7(B)参照)からの光を出射する導光レンズ2の出射面2b(図7(A)および図7(B)参照)の部分2b2(図7(B)参照)が形成されている。   Further, in the light bulb compatible LED lamp 100 of the sixth embodiment, the base side of the LED lamp 100 (FIG. 7A and FIG. 7) rather than the LED light source 1b (see FIG. 7A and FIG. 7B). From the inner end 2bL1 ′ (see FIG. 7B) located on the lower side of (B), the tip side of the LED lamp 100 from the LED light source 1b (upper side of FIGS. 7A and 7B). The curve 2bL ′ (see FIG. 7B) extending to the tip end 2bL3 ′ (see FIG. 7B) located at the center of the LED lamp 100 passing through the LED light source 1b is center axis 100 ′ (FIG. 7). By rotating around a straight line 1b ″ (see FIG. 7B) parallel to (A) and FIG. 7B), the light guide lens 2 (see FIG. 7A and FIG. 7B) ) Of the incident surface 2a (see FIG. 7A and FIG. 7B) (B) portion of the exit surface 2b of the light guide lens 2 for emitting light from the reference) Reference (FIG. 7 (A) and FIG. 7 (B)) 2b2 reference (FIG. 7 (B)) is formed.

そのため、第6の実施形態の電球互換型LEDランプ100によれば、LED光源1a(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)に平行な直線1a”(図7(B)参照)を中心に放射状に広がりながら進む光を導光レンズ2(図7(A)および図7(B)参照)の出射面2b(図7(A)および図7(B)参照)の部分2b1(図7(B)参照)から出射することができ、LED光源1b(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)を中心に放射状に広がりながら進む光を導光レンズ2の出射面2bの部分2b2(図7(B)参照)から出射することができる。   Therefore, according to the light bulb compatible LED lamp 100 of the sixth embodiment, the central axis 100 ′ (FIG. 7A) of the LED lamp 100 passing through the LED light source 1a (see FIGS. 7A and 7B). ) And FIG. 7B)). Light that travels radially spreading around a straight line 1a ″ (see FIG. 7B) parallel to the light guide lens 2 (see FIG. 7A and FIG. 7B) ) From the portion 2b1 (see FIG. 7B) of the emission surface 2b (see FIGS. 7A and 7B), and the LED light source 1b (see FIGS. 7A and 7B). B)) A portion 2b2 of the light exit surface 2b of the light guide lens 2 that travels while spreading radially around a straight line 1b ″ (see FIG. 7B) parallel to the central axis 100 ′ of the LED lamp 100 passing through (see FIG. 7B). (See FIG. 7B).

更に、第6の実施形態の電球互換型LEDランプ100では、LED光源1a(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)に平行な直線1a”(図7(B)参照)上に導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)の内側端部2aL1(図7(B)参照)が配置されている。また、LED光源1b(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)上に導光レンズ2の入射面2aの内側端部2aL1’(図7(B)参照)が配置されている。   Furthermore, in the light bulb compatible LED lamp 100 of the sixth embodiment, the central axis 100 ′ (FIG. 7A) and the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a (see FIG. 7A and FIG. 7B). The incident surface 2a (see FIG. 7A) of the light guide lens 2 (see FIGS. 7A and 7B) on the straight line 1a ″ (see FIG. 7B) parallel to the straight line 1a ″ (see FIG. 7B). ) And the inner end 2aL1 (see FIG. 7 (B)) of FIG.7 (B)) and the LED passing through the LED light source 1b (see FIGS. 7 (A) and 7 (B)). An inner end 2aL1 ′ (see FIG. 7B) of the incident surface 2a of the light guide lens 2 is arranged on a straight line 1b ″ (see FIG. 7B) parallel to the central axis 100 ′ of the lamp 100. .

また、第6の実施形態の電球互換型LEDランプ100では、LED光源1a(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’に平行な直線1a”(図7(B)参照)上に導光レンズ2(図7(A)および図7(B)参照)の出射面2b(図7(A)および図7(B)参照)の内側端部2bL1(図7(B)参照)が配置されている。更に、LED光源1b(図7(A)および図7(B)参照)を通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)上に導光レンズ2(図7(A)および図7(B)参照)の出射面2b(図7(A)および図7(B)参照)の内側端部2bL1’(図7(B)参照)が配置されている。   Further, in the light bulb compatible LED lamp 100 of the sixth embodiment, a straight line 1a ″ parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a (see FIGS. 7A and 7B) ( 7B), the inner end 2bL1 of the light exit surface 2b (see FIGS. 7A and 7B) of the light guide lens 2 (see FIGS. 7A and 7B). (See FIG. 7B.) Furthermore, a straight line 1b ″ (parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1b (see FIGS. 7A and 7B) ( 7B), the inner end 2bL1 of the light exit surface 2b (see FIGS. 7A and 7B) of the light guide lens 2 (see FIGS. 7A and 7B). '(See FIG. 7B) is arranged.

第6の実施形態の電球互換型LEDランプ100では、上述したように、LED光源1a(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1(図7(B)参照)からLED光源1aよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2(図7(B)参照)まで延びている直線2aL(図7(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる直線2aLを、LED光源1aを通るLEDランプ100の中心軸線100’に平行な直線1a”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1aに対向する部分2a1(図7(B)参照)が形成されている。   In the light bulb compatible LED lamp 100 of the sixth embodiment, as described above, the base side of the LED lamp 100 (FIG. 7A) rather than the LED light source 1a (see FIGS. 7A and 7B). And from the inner end 2aL1 (see FIG. 7B) located on the lower side of FIG. 7B to the tip side of the LED lamp 100 from the LED light source 1a (see FIGS. 7A and 7B). A straight line 2aL (see FIG. 7B) extending to the outer end 2aL2 (see FIG. 7B) located on the upper side), and the central axis 100 ′ of the LED lamp 100 toward the tip side of the LED lamp 100 A straight line 1a ″ (see FIG. 7B) parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a is replaced by a straight line 2aL that increases in distance from (see FIGS. 7A and 7B). ) By rotating around A portion 2a1 (FIG. 7B) facing the LED light source 1a of the incident surface 2a (see FIGS. 7A and 7B) of the light guide lens 2 (see FIGS. 7A and 7B). )) Is formed.

第7の実施形態の電球互換型LEDランプ100では、代わりに、LED光源1a(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1(図7(B)参照)からLED光源1aよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2(図7(B)参照)まで延びている曲線(図示せず)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる曲線を、LED光源1aを通るLEDランプ100の中心軸線100’に平行な直線1a”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1aに対向する部分2a1(図7(B)参照)を形成することも可能である。   In the light bulb compatible LED lamp 100 of the seventh embodiment, instead of the LED light source 1a (see FIGS. 7A and 7B), the root side (FIG. 7A) and FIG. 7 (B)) from the inner end 2aL1 (see FIG. 7 (B)) to the front end side of the LED lamp 100 from the LED light source 1a (upper side of FIG. 7 (A) and FIG. 7 (B)). A curve (not shown) extending to the outer end 2aL2 (see FIG. 7B) located at the center of the LED lamp 100 toward the tip end side of the LED lamp 100 (see FIG. 7A). And a curve whose distance from (see FIG. 7B) increases is rotated around a straight line 1a ″ (see FIG. 7B) parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1a. The light guide lens 2 (FIG. 7A It is also possible to form a portion 2a1 (see FIG. 7B) facing the LED light source 1a of the incident surface 2a (see FIGS. 7A and 7B) of FIG. 7B. is there.

また、第6の実施形態の電球互換型LEDランプ100では、上述したように、LED光源1b(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1’(図7(B)参照)からLED光源1bよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2’(図7(B)参照)まで延びている直線2aL’(図7(B)参照)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる直線2aL’を、LED光源1bを通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1bに対向する部分2a2(図7(B)参照)が形成されている。   Moreover, in the light bulb compatible LED lamp 100 of the sixth embodiment, as described above, the root side of the LED lamp 100 (see FIG. 7 (FIG. 7 (A) and FIG. 7 (B)) rather than the LED light source 1 b (see FIGS. From the inner end 2aL1 ′ (see FIG. 7 (B)) located on the lower side of A) and FIG. 7 (B), the LED lamp 100 is more distal than the LED light source 1b (FIG. 7 (A) and FIG. B) is a straight line 2aL ′ (see FIG. 7B) extending to the outer end 2aL2 ′ (see FIG. 7B) located on the upper side) of the LED lamp 100, and the LED lamp 100 is closer to the tip side. The straight line 2aL ′, which increases the distance from the central axis 100 ′ (see FIGS. 7A and 7B), is a straight line 1b ″ parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1b. (See Fig. 7 (B)) Accordingly, a portion 2a2 (see FIG. 7) of the light incident lens 2 (see FIGS. 7A and 7B) on the incident surface 2a (see FIGS. 7A and 7B) facing the LED light source 1b. 7 (B)).

第7の実施形態の電球互換型LEDランプ100では、代わりに、LED光源1b(図7(A)および図7(B)参照)よりもLEDランプ100の根元側(図7(A)および図7(B)の下側)に位置する内側端部2aL1’(図7(B)参照)からLED光源1bよりもLEDランプ100の先端側(図7(A)および図7(B)の上側)に位置する外側端部2aL2’(図7(B)参照)まで延びている曲線(図示せず)であって、LEDランプ100の先端側ほどLEDランプ100の中心軸線100’(図7(A)および図7(B)参照)からの距離が大きくなる曲線を、LED光源1bを通るLEDランプ100の中心軸線100’に平行な直線1b”(図7(B)参照)を中心に回転させることによって、導光レンズ2(図7(A)および図7(B)参照)の入射面2a(図7(A)および図7(B)参照)のLED光源1bに対向する部分2a2(図7(B)参照)を形成することも可能である。   In the light bulb compatible LED lamp 100 of the seventh embodiment, instead of the LED light source 1b (see FIG. 7A and FIG. 7B), the root side of the LED lamp 100 (FIG. 7A and FIG. 7). 7 (B)) from the inner end 2aL1 ′ (see FIG. 7 (B)) located on the tip side of the LED lamp 100 from the LED light source 1b (upper side of FIG. 7 (A) and FIG. 7 (B)). ) Located on the outer end 2aL2 ′ (see FIG. 7B) located at the center of the LED lamp 100 toward the tip end side of the LED lamp 100 (see FIG. 7B). A curve whose distance from A) and FIG. 7B increases is rotated around a straight line 1b ″ (see FIG. 7B) parallel to the central axis 100 ′ of the LED lamp 100 passing through the LED light source 1b. The light guide lens 2 (FIG. 7) A portion 2a2 (see FIG. 7B) facing the LED light source 1b of the incident surface 2a (see FIGS. 7A and 7B) of FIG. Is possible.

第8の実施形態では、上述した第1から第7の実施形態を適宜組み合わせることも可能である。   In the eighth embodiment, the above-described first to seventh embodiments can be appropriately combined.

本発明の電球互換型LEDランプは、例えばストップランプ、テールランプなどのような任意の車両用灯具、一般照明装置、街路灯などに適用可能である。   The bulb-compatible LED lamp of the present invention can be applied to any vehicle lamp such as a stop lamp and a tail lamp, a general lighting device, a street lamp, and the like.

1a,1b LED光源
1a’,1b’ 光軸
1a”,1b” 直線
2 導光レンズ
2a 入射面
2aL1 内側端部
2aL2 外側端部
2aL 直線
2b 出射面
2bL1 内側端部
2bL3 先端側端部
2bL4 根元側端部
2bL 曲線
3 給電部
100 LEDランプ
100’ 中心軸線
1a, 1b LED light sources 1a ', 1b' Optical axes 1a ", 1b" Straight line 2 Light guide lens 2a Incident surface 2aL1 Inner end 2aL2 Outer end 2aL Straight line 2b Outgoing surface 2bL1 Inner end 2bL3 Front end 2bL4 Root side End 2bL Curve 3 Power feeding unit 100 LED lamp 100 ′ Center axis

Claims (9)

第1LED光源(1a)と、第2LED光源(1b)と、第1LED光源(1a)および第2LED光源(1b)からの光を導光する導光レンズ(2)と、第1LED光源(1a)および第2LED光源(1b)に電力を供給する給電部(3)とを具備し、
第1LED光源(1a)の光軸(1a’)および第2LED光源(1b)の光軸(1b’)がLEDランプ(100)の中心軸線(100’)に概略直交するように、第1LED光源(1a)および第2LED光源(1b)をLEDランプ(100)の中心軸線(100’)の周りに配置し、
入射面(2a)と出射面(2b)とを導光レンズ(2)に設け、
導光レンズ(2)の入射面(2a)と第1LED光源(1a)および第2LED光源(1b)とが対向するように、第1LED光源(1a)および第2LED光源(1b)の周りに導光レンズ(2)を配置し、
給電部(3)をLEDランプ(100)の根元側端部に配置した電球互換型LEDランプ(100)において、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成し、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の出射面(2b)を形成し、
第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に入射面(2a)の内側端部(2aL1)を配置し、
第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)上に、あるいは、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)よりもLEDランプ(100)の中心軸線(100’)に近い位置に出射面(2b)の内側端部(2bL1)を配置し、
LEDランプ(100)の中心軸線(100’)に概略直交する面によって出射面(2b)の根元側端部(2bL4)を形成し、
第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の先端側に照射された光(L1a1,L1b1)が、導光レンズ(2)の入射面(2a)および出射面(2b)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a1’,L1b1’)になり、
第1LED光源(1a)および第2LED光源(1b)からLEDランプ(100)の根元側に照射された光(L1a3,L1b3)が、導光レンズ(2)の入射面(2a)および出射面(2b)の根元側端部(2bL4)によって屈折せしめられ、LEDランプ(100)の根元側に進む光(L1a3’,L1b3’)になり、LEDランプ(100)の給電部(3)の周囲部分に照射されることを特徴とする電球互換型LEDランプ(100)。
A first LED light source (1a), a second LED light source (1b), a light guide lens (2) for guiding light from the first LED light source (1a) and the second LED light source (1b), and a first LED light source (1a) And a power supply unit (3) for supplying power to the second LED light source (1b),
The first LED light source so that the optical axis (1a ′) of the first LED light source (1a) and the optical axis (1b ′) of the second LED light source (1b) are substantially orthogonal to the central axis (100 ′) of the LED lamp (100). (1a) and the second LED light source (1b) are arranged around the central axis (100 ′) of the LED lamp (100);
An entrance surface (2a) and an exit surface (2b) are provided on the light guide lens (2),
The light guide lens (2) is guided around the first LED light source (1a) and the second LED light source (1b) so that the incident surface (2a) faces the first LED light source (1a) and the second LED light source (1b). Place the optical lens (2),
In the light bulb compatible LED lamp (100) in which the power feeding part (3) is arranged at the base side end of the LED lamp (100),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2aL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) A straight line (2aL) or a curve extending to the outer end (2aL2) located on the front end side of (100), and the central axis (100 ′) of the LED lamp (100) toward the front end side of the LED lamp (100) The incident surface (2) of the light guide lens (2) is rotated by rotating a straight line (2aL) or a curve with a large distance from the center of a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). 2a),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2bL1) located closer to the root side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) The curve (2bL) extending to the tip side end (2bL3) located on the tip side of (100) is rotated around a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). To form the exit surface (2b) of the light guide lens (2),
On the straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) or the central axis of the LED lamp (100) passing through the first LED light source (1a) ( The inner end (2aL1) of the incident surface (2a) at a position closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to 100 ′),
On the straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a) or the central axis of the LED lamp (100) passing through the first LED light source (1a) ( The inner end (2bL1) of the emission surface (2b) is positioned closer to the central axis (100 ′) of the LED lamp (100) than the straight line (1a ″) parallel to 100 ′),
Forming a base side end (2bL4) of the emission surface (2b) by a surface substantially orthogonal to the central axis (100 ′) of the LED lamp (100);
The light (L1a1, L1b1) emitted from the first LED light source (1a) and the second LED light source (1b) to the tip side of the LED lamp (100) is incident on the incident surface (2a) and the emission surface (2) of the light guide lens (2). 2b) becomes light (L1a1 ′, L1b1 ′) that is refracted by the LED lamp 100 and travels to the base side of the LED lamp 100.
Lights (L1a3, L1b3) emitted from the first LED light source (1a) and the second LED light source (1b) to the base side of the LED lamp (100) are incident surfaces (2a) and emission surfaces (2a) of the light guide lens (2). 2b) is refracted by the base end portion (2bL4) and becomes light (L1a3 ′, L1b3 ′) traveling toward the base side of the LED lamp (100), and the peripheral portion of the power supply portion (3) of the LED lamp (100) A light bulb-compatible LED lamp (100) characterized by being irradiated with light.
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)に平行な所定の直線を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成したことを特徴とする請求項1に記載の電球互換型LEDランプ(100)。   LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2aL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) A straight line (2aL) extending to the outer end (2aL2) located on the front end side of (100), and from the central axis (100 ′) of the LED lamp (100) toward the front end side of the LED lamp (100). The incident surface (2a) of the light guide lens (2) is formed by rotating the straight line (2aL) whose distance is increased around a predetermined straight line parallel to the central axis (100 ′) of the LED lamp (100). The bulb compatible LED lamp (100) according to claim 1, wherein the bulb compatible LED lamp (100) is provided. 第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の入射面(2a)を形成し、
第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)および第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、LEDランプ(100)の中心軸線(100’)を中心に回転させることによって、導光レンズ(2)の出射面(2b)を形成したことを特徴とする請求項2に記載の電球互換型LEDランプ(100)。
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2aL1) located closer to the base side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) A straight line (2aL) extending to the outer end (2aL2) located on the front end side of (100), and from the central axis (100 ′) of the LED lamp (100) toward the front end side of the LED lamp (100). The incident surface (2a) of the light guide lens (2) is formed by rotating a straight line (2aL) of increasing distance about the central axis (100 ′) of the LED lamp (100),
LED lamps than the first LED light source (1a) and the second LED light source (1b) from the inner end (2bL1) located closer to the root side of the LED lamp (100) than the first LED light source (1a) and the second LED light source (1b) By rotating a curve (2bL) extending to the distal end side end (2bL3) located on the distal end side of (100) around the central axis (100 ′) of the LED lamp (100), a light guide lens ( 3. The light bulb compatible LED lamp (100) according to claim 2, wherein the exit surface (2b) of 2) is formed.
第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2)まで延びている直線(2aL)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL)または曲線を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、第1LED光源(1a)に対向する導光レンズ(2)の入射面(2a)の第1部分(2a1)を形成し、
第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2aL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する外側端部(2aL2’)まで延びている直線(2aL’)または曲線であって、LEDランプ(100)の先端側ほどLEDランプ(100)の中心軸線(100’)からの距離が大きくなる直線(2aL’)または曲線を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、第2LED光源(1b)に対向する導光レンズ(2)の入射面(2a)の第2部分(2a2)を形成し、
第1LED光源(1a)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1)から第1LED光源(1a)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3)まで延びている曲線(2bL)を、第1LED光源(1a)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1a”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第1部分(2a1)からの光を出射する導光レンズ(2)の出射面(2b)の第1部分(2b1)を形成し、
第2LED光源(1b)よりもLEDランプ(100)の根元側に位置する内側端部(2bL1’)から第2LED光源(1b)よりもLEDランプ(100)の先端側に位置する先端側端部(2bL3’)まで延びている曲線(2bL’)を、第2LED光源(1b)を通るLEDランプ(100)の中心軸線(100’)に平行な直線(1b”)を中心に回転させることによって、導光レンズ(2)の入射面(2a)の第2部分(2a2)からの光を出射する導光レンズ(2)の出射面(2b)の第2部分(2b2)を形成したことを特徴とする請求項1に記載の電球互換型LEDランプ(100)。
From the inner end (2aL1) located closer to the base of the LED lamp (100) than the first LED light source (1a), the outer end (2aL2) located closer to the tip of the LED lamp (100) than the first LED light source (1a) ), A straight line (2aL) or a curve that extends to the tip side of the LED lamp (100), and the distance from the central axis (100 ′) of the LED lamp (100) increases. A light guide lens (2) facing the first LED light source (1a) by rotating about a straight line (1a '') parallel to the central axis (100 ') of the LED lamp (100) passing through the first LED light source (1a). ) Forming the first part (2a1) of the incident surface (2a),
From the inner end (2aL1 ′) located closer to the base side of the LED lamp (100) than the second LED light source (1b) to the outer end (position closer to the tip side of the LED lamp (100) than the second LED light source (1b) ( A straight line (2aL ') extending to 2aL2'), and a straight line (2aL ') in which the distance from the central axis (100') of the LED lamp (100) increases toward the tip of the LED lamp (100). Alternatively, the curve is rotated around a straight line (1b ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the second LED light source (1b), thereby leading the second LED light source (1b). Forming a second part (2a2) of the incident surface (2a) of the optical lens (2);
From the inner end (2bL1) located on the base side of the LED lamp (100) relative to the first LED light source (1a), the tip end side end located on the tip side of the LED lamp (100) relative to the first LED light source (1a) ( The curve (2bL) extending to 2bL3) is rotated around a straight line (1a ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the first LED light source (1a). Forming a first portion (2b1) of the exit surface (2b) of the light guide lens (2) that emits light from the first portion (2a1) of the entrance surface (2a) of the lens (2);
The front end side end portion located on the front end side of the LED lamp (100) from the inner end portion (2bL1 ′) located on the root side of the LED lamp (100) than the second LED light source (1b). By rotating the curve (2bL ′) extending to (2bL3 ′) around a straight line (1b ″) parallel to the central axis (100 ′) of the LED lamp (100) passing through the second LED light source (1b) The second portion (2b2) of the exit surface (2b) of the light guide lens (2) that emits light from the second portion (2a2) of the entrance surface (2a) of the light guide lens (2) is formed. The bulb-compatible LED lamp (100) according to claim 1, characterized in that
第1LED光源(1a)が実装された第1基板(4a)と、第2LED光源(1b)が実装された第2基板(4b)とを、LEDランプ(100)の中心軸線(100’)上に位置する光源支持部材(5)に接続し、
概略傘状の放熱部材(6)を光源支持部材(5)に接続すると共に、導光レンズ(2)の先端側に配置し、
概略傘状の放熱部材(6)の根元側表面によって反射面(6a)を形成し、
第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a4,L1a5,L1b4,L1b5)が放熱部材(6)の反射面(6a)によって反射され、LEDランプ(100)の先端側に照射され、
第1LED光源(1a)および第2LED光源(1b)が発生した熱が、第1基板(4a)、第2基板(4b)および光源支持部材(5)を介して放熱部材(6)に伝熱され、放熱部材(6)から放熱されることを特徴とする請求項1〜4のいずれか一項に記載の電球互換型LEDランプ(100)。
The first substrate (4a) on which the first LED light source (1a) is mounted and the second substrate (4b) on which the second LED light source (1b) is mounted on the central axis (100 ′) of the LED lamp (100). Connected to the light source support member (5) located at
An approximately umbrella-shaped heat radiating member (6) is connected to the light source support member (5) and disposed on the front end side of the light guide lens (2).
A reflective surface (6a) is formed by the base-side surface of the generally umbrella-shaped heat dissipation member (6),
Of the light from the first LED light source (1a) and the second LED light source (1b), the light (L1a4, L1a5, L1b4, L1b5) that does not enter the incident surface (2a) of the light guide lens (2) is the heat radiating member (6). Is reflected by the reflective surface (6a) of the LED lamp (100) and irradiated to the tip side of the LED lamp (100),
Heat generated by the first LED light source (1a) and the second LED light source (1b) is transferred to the heat radiating member (6) through the first substrate (4a), the second substrate (4b) and the light source support member (5). The light bulb compatible LED lamp (100) according to any one of claims 1 to 4, wherein the heat dissipation member (6) dissipates heat.
概略傘状の放熱部材(6)の根元側表面と先端側表面とを連通する貫通穴(6b)を形成し、
第1LED光源(1a)および第2LED光源(1b)からの光のうち、導光レンズ(2)の入射面(2a)に入射しない光(L1a6,L1b6)が概略傘状の放熱部材(6)の貫通穴(6b)を透過し、LEDランプ(100)の先端側に照射されることを特徴とする請求項5に記載の電球互換型LEDランプ(100)。
Forming a through hole (6b) that communicates the base-side surface and the tip-side surface of the substantially umbrella-shaped heat dissipation member (6);
Of the light from the first LED light source (1a) and the second LED light source (1b), the light (L1a6, L1b6) that does not enter the incident surface (2a) of the light guide lens (2) is substantially umbrella-shaped heat dissipation member (6) The bulb-compatible LED lamp (100) according to claim 5, wherein the LED lamp (100) is irradiated through the through hole (6b) of the LED lamp (100).
第1LED光源(1a)および第1基板(4a)と、第2LED光源(1b)および第2基板(4b)とが、LEDランプ(100)の中心軸線(100’)を中心として180°回転対称になるように、第1LED光源(1a)と第1基板(4a)と第2LED光源(1b)と第2基板(4b)とを配置し、
光源支持部材(5)に接続される概略傘状の放熱部材(6)の根元側端部(6c)を概略コ字状に形成し、
放熱部材(6)の概略コ字状の根元側端部(6c)によって、第1基板(4a)と光源支持部材(5)と第2基板(4b)とを挟持し、固定したことを特徴とする請求項5又は6に記載の電球互換型LEDランプ(100)。
The first LED light source (1a) and the first substrate (4a), and the second LED light source (1b) and the second substrate (4b) are 180 ° rotationally symmetric about the central axis (100 ′) of the LED lamp (100). The first LED light source (1a), the first substrate (4a), the second LED light source (1b), and the second substrate (4b) are arranged so that
The base side end portion (6c) of the substantially umbrella-shaped heat radiation member (6) connected to the light source support member (5) is formed in a substantially U-shape,
The first substrate (4a), the light source support member (5), and the second substrate (4b) are sandwiched and fixed by the substantially U-shaped base side end portion (6c) of the heat radiating member (6). The bulb compatible LED lamp (100) according to claim 5 or 6.
光源支持部材(5)の表面のうち、第1基板(4a)および第2基板(4b)を支持しない部分を導光レンズ(2)の入射面(2a)の側に延ばすことによって放熱部(5a)を形成し、
第1LED光源(1a)および第2LED光源(1b)が発生した熱が、第1基板(4a)および第2基板(4b)を介して光源支持部材(5)の放熱部(5a)に伝熱され、光源支持部材(5)の放熱部(5a)から放熱されることを特徴とする請求項7に記載の電球互換型LEDランプ(100)。
A portion of the surface of the light source support member (5) that does not support the first substrate (4a) and the second substrate (4b) is extended to the incident surface (2a) side of the light guide lens (2) to thereby dissipate the heat radiating portion ( 5a)
Heat generated by the first LED light source (1a) and the second LED light source (1b) is transferred to the heat radiating portion (5a) of the light source support member (5) via the first substrate (4a) and the second substrate (4b). The light bulb-compatible LED lamp (100) according to claim 7, wherein the heat-radiating part (5a) of the light source support member (5) dissipates heat.
請求項1〜8のいずれか一項に記載の電球互換型LEDランプ(100)を具備し、
LEDランプ(100)から照射される光の疑似焦点(100a)を、リフレクタ(201)の放物系反射面(201a)の焦点(200a1)上またはその近傍に配置したことを特徴とする車両用灯具(200)。
Comprising the bulb compatible LED lamp (100) according to any one of claims 1 to 8,
For a vehicle characterized in that a pseudo focal point (100a) of light emitted from an LED lamp (100) is arranged on or near a focal point (200a1) of a parabolic reflecting surface (201a) of a reflector (201) Lamp (200).
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