JP2010040259A

JP2010040259A - Led bulb

Info

Publication number: JP2010040259A
Application number: JP2008199891A
Authority: JP
Inventors: Toshiaki Inoue; 俊明井上
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-01
Filing date: 2008-08-01
Publication date: 2010-02-18

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED bulb which although is capable of enhancing irradiation force in a lamp axis direction and suppressing lighting to the sides, by making duplicated irradiation of emitted light from an LED and capable of being used as a substitute of a mercury lamp, will not cause glare to generate, while maintaining equivalent illuminance with the mercury lamp. <P>SOLUTION: The LED bulb has a structure, in which a plurality of LEDs are arranged in a conical or circular truncated cone shape so that the emitted light of the LEDs 5 so as to become a semi-spherical shape, and an inverted conical mirror 6 is arranged, from a rear side of fixing position of each of LEDs toward the optical axis direction, and a condensed light is irradiated in duplication for enhancing irradiation force in the lamp axis direction to suppress lighting to a side, while glare is not generated, even if it has equivalent illuminance with a mercury lamp; it can be used as a guide light, since a bulb-side face part has superior visibility due to high luminance and can be used as a substitute for the mercury lamp; and moreover, its has a heat radiating plate 7 at a jointing part with a cover part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ＬＥＤ電球に関する。 The present invention relates to an LED bulb.

従来の電球においては、蛍光灯を電球状にした蛍光灯電球や白熱電球の様に発熱発光による球状放射の全方向照射の電球であった。 Conventional light bulbs are bulbs that irradiate in a spherical direction by exothermic light emission, such as fluorescent light bulbs and incandescent light bulbs that have a fluorescent light bulb shape.

近年、地球の温暖化により、如何に効率のよい電球を作るのかが世界中の関心である。高効率発光のＬＥＤを用いた照明器具の開発が急進展しているが、ＬＥＤの照射力が小さい為、現段階では主照明としての利用はされていない。 In recent years, the world is interested in how to make efficient light bulbs due to global warming. Although development of lighting fixtures using high-efficiency light emitting LEDs has been rapidly progressing, they are not used as main lighting at this stage because the irradiation power of LEDs is small.

本発明が解決しようとする課題は、世界中が白熱電球の使用生産中止が始まった今、水銀灯や一般電球の代替光源になる省エネルギーで環境に配慮した照明用ＬＥＤ電球を提供することである。 The problem to be solved by the present invention is to provide an energy-saving and environmentally friendly LED light bulb that is an alternative light source for mercury lamps and general light bulbs as the world has started to stop using incandescent light bulbs.

本発明の照明用ＬＥＤ電球は、電球のように球状放射せず、半球状放射になるように複数のＬＥＤを配置しているので街路灯に使用しても水平位置迄しか放射光が出ないので誘導灯として使用できる。電球より上方への放射光（光害）が出ず放射光を１００％有効に利用できる。 The LED light bulb for illumination of the present invention does not emit spherical light like a light bulb, and a plurality of LEDs are arranged so as to produce hemispherical radiation. So it can be used as a guide light. Radiation light (light pollution) above the light bulb does not appear and the radiation light can be used 100% effectively.

本発明の照明用ＬＥＤ電球は、放射光が重複照射する様に複数個を設置する事で半球面状に光が放射される。各種電球を器具に設置し灯軸上の２ｍ前方の前方照射力を比べると、２００ｗ白熱電球が６４Ｌｘ、１００ｗの蛍光灯は１６２Ｌｘ、本発明の３０ｗ型半球状放射のＬＥＤ電球は約１５００Ｌｘ以上であった。また、試作ＬＥＤ電球から１０ｍ下の路面での直下照度は５０Ｌｘを有した。一級国道の街路灯で使用されている高さ１０ｍの直下路面で３５Ｌｘしか無かった。ＬＥＤは高輝度なので側方の放射光を少なく設置しても遠方からの視認性が良く誘導灯としての機能を満たす。重複照射された路面上の放射光は遠方からの路上の視認性の良さを確保した。また、重複照射した放射光を指向角６０度以下に設定する事で歩行者や運転手の視野に入り難くグレアを感じさせない電球となった。 The LED light bulb for illumination according to the present invention emits light in a hemispherical shape by installing a plurality of the emitted light bulbs so that the emitted light is irradiated repeatedly. Comparing the front illumination power 2m ahead on the lamp shaft with various bulbs installed in the fixture, the 200w incandescent bulb is 64Lx, the 100w fluorescent lamp is 162Lx, and the 30w hemispherical LED bulb of the present invention is about 1500Lx or more there were. The illuminance directly below the road surface 10 m below the prototype LED bulb was 50 Lx. There was only 35Lx on the 10m-high road surface used for the street light of the first-class national highway. Since the LED has high brightness, even if it is installed with a small amount of radiated light on the side, it is highly visible from a distance and fulfills the function as a guide light. The radiated light on the road surface that was repeatedly irradiated secured good visibility on the road from a distance. In addition, by setting the radiated light that has been repeatedly irradiated to a directivity angle of 60 degrees or less, the light bulb is difficult to enter the pedestrian or driver's field of vision and does not feel glare.

本発明のＬＥＤ電球を日本中の屋外灯と交換し使用する事で大幅な消費電力削減可能となる。仮に、道路の高力率４００ｗの街路灯１０万本で消費電力を４００ｗ×１５０％（力率）×１０万本で６４４００kwｈとする。街路灯だけで（６４４００kwｈ×１１時間×３６５日）年間２５８５６６０００ｋｗとなり、公園や公共の場所・繁華街の屋外灯・施設照明等約１００万本（１００W×１００万本×１１時間×３６５日）の４０１５０００００ｋｗと合わせると６６００６６０００ｋｗでＬＥＤ電球の消費電力１３２４９５０００ｋｗに交換すると５２７５７１０００ｋｗの電力削減となる。これは１９４１４６,１２８t相当のＣＯ２が削減可能となる。 By replacing the LED bulb of the present invention with outdoor lights all over Japan, power consumption can be greatly reduced. Assuming that 100,000 street lamps with a high power factor of 400 w on the road consumes 400 w x 150% (power factor) x 100,000, the power consumption is 64400 kwh. With street lights alone (64400kwh x 11 hours x 365 days), it becomes 258566000kw per year, and there are about 1 million lights (100W x 1 million x 11 hours x 365 days) in parks, public places, downtown outdoor lights, and facility lighting. When combined with 401500000 kw, the power consumption of the LED bulb will be reduced to 527571000 kw by replacing it with 62496000 kw. This makes it possible to reduce CO2 equivalent to 194146,128t.

単にＬＥＤ電球を電球の形状に製造して白熱電球の使用器具に使用しても、器具の反射鏡の光源位置に合わせた反射角度になっているので、電球の様に後方の反射板にＬＥＤの放射光が反射して前方へ照射される反射光は少なくなる。本発明の照明用ＬＥＤ電球は多数のＬＥＤを円錐形もしくは、円錐台形に配置するので用途に応じてＬＥＤを使用する事で形状や用途別のＬＥＤ電球を提供できる。 Even if you simply manufacture an LED bulb in the shape of a bulb and use it for an incandescent bulb, it has a reflection angle that matches the light source position of the reflector of the fixture, so the LED on the back reflector like a bulb Less reflected light is reflected and irradiated forward. Since the LED light bulb for illumination of the present invention has a large number of LEDs arranged in a conical shape or a truncated cone shape, an LED light bulb can be provided according to shape and use by using the LED according to the use.

本発明の請求項１に記載のＬＥＤ電球はＬＥＤの輝度の高さを利用し放射光を半球面状になるように複数のＬＥＤを円錐形もしくは円錐台形に設置し、視認性の良さに因る誘導性を持たせ側方へのＬＥＤの照射力を少な目に設定し、ＬＥＤ電球の灯軸方向への放射光を重複照射させる事で灯軸方向への放射力を増し、省電力ながらも視認性と照射力を有する構造を特徴とするＬＥＤ電球を提供できる。 The LED light bulb according to claim 1 of the present invention uses a high luminance of the LED, and a plurality of LEDs are installed in a conical shape or a truncated cone shape so that the emitted light becomes a hemispherical shape. In order to increase the radiation power in the direction of the lamp axis by overlapping the irradiation light in the direction of the lamp axis of the LED bulb, while reducing power consumption An LED bulb characterized by a structure having visibility and irradiation power can be provided.

本発明の請求項２に記載のＬＥＤ電球は個々のＬＥＤの設置部側方から光軸方向へ逆円錐面鏡（逆楕円円錐面鏡や回転方物面鏡等含む。以下、単に逆円錐面鏡と記す。）を使用し、ＬＥＤの放射光を特定の角度に集光照射する構造を有する。指向角１３５度のＬＥＤに逆円錐面鏡等の反射鏡を使用して、照射角を６０度に集光すると照射面積は約１６分の１になり、反射率９５％の反射鏡を使用すると約１５倍明るくなる。又、正常な人間の視野は上方に６０度であり各ＬＥＤの光軸を灯軸に平行となる様に配置し灯軸を中心とした６０度に設定すると集光された高照度の放射光は視野に入らないのでグレアが発生しない。
しかし、高照度でなくても水平位置までの照射光を有すると誘導灯として使用可能となり、誘導性と視認性に優れ眩しくないＬＥＤ電球を提供できる。 The LED bulb according to claim 2 of the present invention includes an inverted conical mirror (an inverted elliptical conical mirror, a rotating solid surface mirror, etc.) from the side of each LED installation portion side to the optical axis direction. And a structure for condensing and irradiating the emitted light of the LED at a specific angle. When a reflective mirror such as an inverted conical mirror is used for an LED having a directivity angle of 135 degrees and the irradiation angle is condensed to 60 degrees, the irradiation area is reduced to about 1/16, and a reflective mirror with a reflectance of 95% is used. It is about 15 times brighter. In addition, the normal human field of view is 60 degrees upward, and if the optical axis of each LED is arranged so as to be parallel to the lamp axis and is set to 60 degrees with the lamp axis as the center, the collected high-illuminance radiation Does not enter the field of view, so no glare occurs.
However, even if it is not high illuminance, it can be used as a guide light when it has irradiation light up to a horizontal position, and an LED bulb that is excellent in inductivity and visibility and is not dazzling can be provided.

また、本発明の請求項３に記載のＬＥＤ電球の本体とカバー部の接合部に放熱構造を有する事を特徴とするＬＥＤ電球は、白熱電球やＨＩＤランプに比べて発熱量が少なく、カバーを電球に取付けなければ昆虫が巣を作りゴミが蓄積し、死骸やゴミの通電による発火の可能性が高くなる。しかしＬＥＤには放熱が一番必要で有り、放熱が上手くいかなければＬＥＤの寿命は極端に短くなる。そこで、電球本体とカバー部の接合部の間に放熱のための空間を設けカバー内部の高温な気体を放出しＬＥＤ素子発光に伴う周囲温度の上昇を対流放熱により防止し、定格寿命の長期化を図る。本体とカバー部の接合部に熱や気体のみを通過させて、水や昆虫、ゴミが侵入しないようにマイクロネットを配置した。 In addition, the LED bulb characterized by having a heat dissipation structure in the joint portion of the LED bulb main body and the cover portion according to claim 3 of the present invention has a lower calorific value than the incandescent bulb and the HID lamp, and the cover. If it is not attached to the light bulb, insects will nest and the garbage will accumulate, increasing the possibility of fire due to the energization of dead bodies and garbage. However, the LED needs the most heat radiation, and if the heat radiation is not successful, the life of the LED is extremely shortened. Therefore, a space for heat dissipation is provided between the joint part of the bulb body and the cover part, and a high-temperature gas inside the cover is released to prevent the ambient temperature from rising due to LED light emission by convection heat dissipation, thus extending the rated life. Plan. Micronets were placed so that only heat and gas were allowed to pass through the joint between the main body and the cover to prevent water, insects, and dust from entering.

以下、本発明の実施例にもとづき図面を用いて説明する。
図１は中心角１２０度の円錐状のＬＥＤ設置面２に指向角１３５度・光度１５ｌｍのＬＥＤ５を１５０個配置した３０ｗ無集光タイプのＬＥＤ電球試作器を基にした簡易説明図においては、ＬＥＤ５aは放射光４aから放射光４a’間の１３５度を照射しＬＥＤ５bは放射光４bから放射光４b’間の１３５度を照射する。灯軸３を中心とする中心角９０度の逆円錐形に照射される放射光４a’ から放射光４b’間は全てのＬＥＤの放射光が重複照射され灯軸３の延長上１ｍで７２０Ｌｘを有し、２００ｗ白熱電球の２５０Ｌｘよりも明るい。また、上記以外の放射光４a’から放射光４bもしくは、放射光４b’から放射光４aの照度は１ｍ離れた位置で２４０Ｌｘを有した。 Hereinafter, based on the Example of this invention, it demonstrates using drawing.
FIG. 1 is a simplified explanatory diagram based on a 30w non-condensing type LED bulb prototype in which 150 LEDs 5 having a directivity angle of 135 degrees and a luminous intensity of 15 lm are arranged on a conical LED installation surface 2 having a central angle of 120 degrees. The LED 5a emits 135 degrees between the emitted light 4a and the emitted light 4a ', and the LED 5b emits 135 degrees between the emitted light 4b and the emitted light 4b'. Between the radiated light 4a 'and the radiated light 4b' radiated in an inverted conical shape with a central angle of 90 degrees centered on the lamp shaft 3, the radiated light of all LEDs is overlapped and 720Lx is obtained at 1 m on the extension of the lamp shaft 3. It is brighter than 250Lx of 200w incandescent bulb. Further, the illuminance of the radiated light 4b from the radiated light 4a 'or the radiated light 4a from the radiated light 4b' other than the above was 240 Lx at a position 1 m away.

図２は、請求項２記載の集光重複型円錐台形タイプのＬＥＤ電球の縦断面説明図において、図１と同じく中心角１２０度の円錐の頭頂部を切取った円錐台形のＬＥＤ配置面２bに配置された９０個の逆円錐形反射鏡６の底部に指向角１３５度・光度１５ lmのＬＥＤ５を９０個、円錐台形側面２a部に配置された６０個の逆円錐形反射鏡６の底部に指向角１３５度・光度１５ｌｍのＬＥＤ５を６０個配置した。円錐台形状のＬＥＤ設置面２bに設置したＬＥＤ５cは逆円錐形反射鏡６により灯軸３を中心とした４cから４c’の６０度を照射する。ＬＥＤ５aは逆円錐形反射鏡６によって放射光４aから放射光４a’間の９０度を照射し、ＬＥＤ５bも逆円錐形反射鏡６によって放射光４bから放射光４b’間の９０度を照射する。灯軸３を中心とした半球状に切れ目無く放射光が照射される。 FIG. 2 is a longitudinal cross-sectional explanatory view of a condensing overlapping frustoconical LED bulb according to claim 2, and a frustoconical LED arrangement surface 2 b obtained by cutting off the top of a cone having a central angle of 120 degrees as in FIG. 1. 90 LEDs 5 having a directivity angle of 135 degrees and a luminous intensity of 15 lm are disposed at the bottom of 90 inverted conical reflectors 6 arranged at the bottom, and the bottoms of 60 inverted conical reflectors 6 disposed at the frustoconical side surface 2a. 60 LEDs 5 having a directivity angle of 135 degrees and a luminous intensity of 15 lm were arranged. The LED 5c installed on the frustoconical LED installation surface 2b irradiates 60 degrees from 4c to 4c 'around the lamp shaft 3 by the inverted conical reflector 6. The LED 5a irradiates 90 degrees between the emitted light 4a and the emitted light 4a 'by the inverted conical reflector 6, and the LED 5b also irradiates 90 degrees between the emitted light 4b and the emitted light 4b' by the inverted conical reflector 6. Radiation light is irradiated in a hemispherical shape with the lamp shaft 3 as the center.

図３は、請求項２記載の円筒形タイプのＬＥＤ電球の縦断面説明図でＬＥＤ配置面２に配置した指向角１３５度の広角指向特性のＬＥＤ５の側方から逆円錐鏡６を使用して、ＬＥＤ５の放射光４aから放射光４a’の１３５度を放射光４ｂから放射光４ｂ’の照射角６０度に集光すると照射面積は約１６,８分の１になり、反射率９５％の反射鏡を逆円錐鏡６に加工して使用すると約１５倍明るくなる。また、本体１の側面に設置した円筒状の放熱板７と一体化したＬＥＤ設置面２に白色やマルチタイプのＬＥＤ５を配置することで視認性と誘導性を確保しながらも、マルチタイプＬＥＤを利用した色調変化に因る情報伝達を発信可能な眩しくなく、マイクロネット１０を取り付けたカバー９を設置してＬＥＤ５の電球内で発生する熱を電球外へ放熱できるＬＥＤ電球を製造できる。 FIG. 3 is a longitudinal cross-sectional explanatory view of the cylindrical type LED bulb according to claim 2, using an inverted conical mirror 6 from the side of the LED 5 having a wide angle directivity characteristic of 135 degrees of directivity arranged on the LED placement surface 2. , If 135 degrees of the emitted light 4a to 4a 'of the LED 5 are condensed to an irradiation angle of 60 degrees of the emitted light 4b' from the emitted light 4b, the irradiation area becomes about 16.8, and the reflectance is 95%. When the reflecting mirror is processed into the inverted conical mirror 6 and used, it becomes bright about 15 times. Moreover, while ensuring visibility and inductivity by arranging white or multi-type LEDs 5 on the LED installation surface 2 integrated with the cylindrical heat sink 7 installed on the side surface of the main body 1, the multi-type LEDs can be used. An LED bulb that can dissipate heat generated in the bulb of the LED 5 can be manufactured by installing a cover 9 to which the micronet 10 is attached without being dazzling and capable of transmitting information due to the used color change.

本発明の本発明の照明用ＬＥＤ電球は、白熱電球の代替光源だけでは無く、ハロゲン球や水銀灯等電球全般に利用が可能な電球である、図３は円筒形タイプのＬＥＤ電球の使用によって道路状況や災害発生告知も可能となる。また、ソーラーシステムと組み合わせることで自力発電となり、災害等の緊急時にも電線等の断線等に関係無く機能を維持出来る。 The LED bulb for illumination of the present invention is not only an alternative light source for incandescent bulbs but also a bulb that can be used for all bulbs such as halogen bulbs and mercury lamps. FIG. 3 shows a road by using a cylindrical LED bulb. Status and disaster occurrence notifications are also possible. In combination with a solar system, it can generate power by itself, and can maintain its function regardless of the disconnection of electric wires and the like even in the event of an emergency such as a disaster.

請求項１の円錐状のＬＥＤ設置面にＬＥＤを配置した重複照射型無集光タイプのＬＥＤ電球の縦断面説明図。The longitudinal cross-section explanatory drawing of the double irradiation type non-condensing type LED bulb which has arrange | positioned LED on the conical LED installation surface of Claim 1. 請求項２の集光重複照射型円錐台形タイプのＬＥＤ電球の縦断面説明図である。It is a longitudinal cross-sectional explanatory drawing of the LED bulb of the condensing overlap irradiation type truncated cone type of Claim 2. 図３は円筒形タイプのＬＥＤ電球の縦断面説明図である。FIG. 3 is a longitudinal sectional view of a cylindrical type LED bulb.

符号の説明Explanation of symbols

１本体
２ＬＥＤ設置面
３灯軸
４放射光
４ａ放射光
４ａ‘放射光
４ｂ放射光
４ｂ‘放射光
４ｃ放射光
４ｃ‘放射光
５ＬＥＤ
５ａＬＥＤ
５ｂＬＥＤ
５ｃＬＥＤ
６逆円錐面鏡
７放熱板（放熱フィン）
８口金
９カバー
１０マイクロネット
DESCRIPTION OF SYMBOLS 1 Main body 2 LED installation surface 3 Lamp shaft 4 Radiation light 4a Radiation light 4a 'Radiation light 4b Radiation light 4b' Radiation light 4c Radiation light 4c 'Radiation light 5 LED
5a LED
5b LED
5c LED
6 Reverse conical mirror 7 Heat sink (heat sink fin)
8 Base 9 Cover 10 Micronet

Claims

ＬＥＤの放射光を半球面状になるように複数のＬＥＤを円錐形もしくは円錐台形に配置する構造を特徴とするＬＥＤ電球。 An LED bulb characterized by a structure in which a plurality of LEDs are arranged in a conical shape or a truncated cone shape so that the emitted light of the LEDs becomes hemispherical.

個々のＬＥＤの設置部後方から光軸方向へ逆円錐面鏡（逆楕円円錐面鏡や回転方物面鏡等含む）を設置し、灯軸方向のＬＥＤ放射光を６０度以下に抑えてグレアの発生しにくい角度に照射する前方照射構造と側方からの視認性も持ち合わせた構造を特徴とするＬＥＤ電球。 Inverted conical mirrors (including inverted elliptical conical mirrors and rotating plane mirrors) are installed in the direction of the optical axis from the rear of the individual LED installation section, and the LED radiated light in the direction of the lamp axis is suppressed to 60 degrees or less and glare. An LED bulb characterized by a front irradiation structure that irradiates at an angle where it is difficult to generate and a structure that also has visibility from the side.

ＬＥＤ電球本体とカバー部の接合部に放熱構造を有する事を特徴とするＬＥＤ電球。 An LED bulb characterized by having a heat dissipation structure at the joint between the LED bulb body and the cover.