JP2001243807A - Led electric bulb - Google Patents

Led electric bulb

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Publication number
JP2001243807A
JP2001243807A JP2000051708A JP2000051708A JP2001243807A JP 2001243807 A JP2001243807 A JP 2001243807A JP 2000051708 A JP2000051708 A JP 2000051708A JP 2000051708 A JP2000051708 A JP 2000051708A JP 2001243807 A JP2001243807 A JP 2001243807A
Authority
JP
Japan
Prior art keywords
substrate
light
led
shaped member
trumpet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000051708A
Other languages
Japanese (ja)
Inventor
Yasuo Imai
Kenichi Ishii
Chiharu Makihara
Kenichi Yamada
康雄 今井
健一 山田
千晴 牧原
健一 石井
Original Assignee
Mitsubishi Electric Lighting Corp
三菱電機照明株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Lighting Corp, 三菱電機照明株式会社 filed Critical Mitsubishi Electric Lighting Corp
Priority to JP2000051708A priority Critical patent/JP2001243807A/en
Publication of JP2001243807A publication Critical patent/JP2001243807A/en
Application status is Pending legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/02Globes; Bowls; Cover glasses characterised by the shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/04Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/10Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
    • F21V3/12Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/40Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

PROBLEM TO BE SOLVED: To provide a LED electric bulb capable of obtaining a white light of large luminous flux and a wide illumination range with a simple structure and distributing luminous intensity in various light distributing patterns, and compatible with a conventional incandescent lamp. SOLUTION: This electric bulb is provided with a base 1 on one end, a bugle shaped member 2 expanding like a bugle toward an opening part on the other end, a translucent cover 5 attached to an opening part of the bugle shaped member 2 and having a fluorescent material layer on an inner surface of the same, a substrate 3 provided inside of a nearly spherical body 7 formed by the bugle shaped member 2 and the translucent cover 5, and LED elements 4 mounted on an outer surface of the substrate 3 facing the translucent cover 5.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は、LED素子を光源に使用し、白色光を得ることができるLED電球に関する。 TECHNICAL FIELD The present invention uses an LED element as a light source, an LED bulb white light can be obtained.

【0002】 [0002]

【従来の技術】図5は、例えば実登3034744号公報(従来例1)に示された従来のLED素子を使用した電球の側面図である。 BACKGROUND ART FIG. 5, for example a side view of the bulb using a conventional LED element shown in real Noboru 3034744 JP (Conventional Example 1). 図において4はLED素子、13 4 in figure LED element, 13
は電球体、14は電子回路を収納した電子回路収納部である。 Bulbs body, 14 is an electronic circuit housing portion that houses the electronic circuit. この構成により、寿命が長いものである。 This configuration is intended lifetime is long.

【0003】また、図6は、例えば特開平09−265 [0003] FIG. 6 is, for example, JP-A-09-265
807号公報(従来例2)に示されたLED信号灯である。 807 JP an LED signal lamp shown in (conventional example 2). 図において、21は反射鏡、22はLED光源であり六角筒に配置された回路基板23に複数のLED素子24が実装されている。 In the figure, 21 is a reflecting mirror, 22 a plurality of LED elements 24 to the circuit board 23 is disposed in the hexagonal cylinder an LED light source is mounted. このLED素子24は全て青, All the LED element 24 is blue,
黄,赤のいずれかに発光する。 Yellow, it emits light in one of the red. 25は無色透明の前面ガラス、26は筒状の支持筒、1は口金、27は点灯回路基板、28は投光用開口側に設けられた円板状回路基板、29は円板状回路基板28に設けられた直射用の複数のLED素子である。 25 colorless transparent front glass, 26 cylindrical support tube, 1 mouthpiece, the lighting circuit board 27, the disk-shaped circuit board provided for the light-projecting opening side 28, 29 disk-shaped circuit board a plurality of LED elements for direct provided 28.

【0004】このように構成され、複数のLED24は反射鏡21に対向させているので、LED素子24の光を有効に利用でき、LED素子24の前方に直射用LE [0004] constructed as described above, since the plurality of LED24 and is opposed to the reflecting mirror 21, the light of the LED element 24 can be effectively used, direct a LE in front of the LED elements 24
D素子29を配設したので、前面ガラス25のほぼ全面の輝度均斉度を高めることができ、視認性がよいものである。 Having arranged the D element 29, it is possible to increase substantially the entire brightness uniformity of the front glass 25, to have good visibility.

【0005】 [0005]

【発明が解決しようとする課題】しかしながら、上記の従来例1はLED素子4を数個使用しているが口金1等の大きさから装着されるLED素子4の数が限られるため、全体としての光束をあまり大きくできず常夜灯などに使用されるものであり、また、電球体13に何ら処理もされていないので、輝度が均一でなく照射範囲が広くないという問題があった。 [SUMMARY OF THE INVENTION However, since the conventional example 1 above using several LED elements 4 is that a limited number of LED elements 4 to be mounted from the size of such die 1, as a whole of are those such as those used in the night-light can not be too large luminous flux, and because the bulb 13 is not also any process, there is a problem that brightness is not wide irradiation range not uniform.

【0006】また、従来例2は構成が複雑であり、また、青,黄,赤のいずれかに発光した光を無色透明の前面ガラス25を通して照射するだけであり、信号灯の他の一般の照明器具には応用ができないという問題があった。 Further, prior art 2 has the configuration is complicated, also, blue, yellow, light emitted in one of the red and only illuminated through the front glass 25 of the colorless and transparent, lighting other common signal lamp the equipment there is a problem that can not be applied. また、前面ガラス25の輝度を均一にするには、反射鏡21の形状、大きさ及びLED素子の数に制約されるという問題があった。 Also, to equalize the brightness of the front glass 25, the shape of the reflecting mirror 21, there is a problem that is constrained to the number of sizes and LED elements.

【0007】一方、白色の光を発光するLDE素子はまだ一般に実用化されていない。 On the other hand, LDE device emitting white light has not yet been generally practically used. そして、白色光に近い照射光を得るためRGB(赤、緑、青)の三原色のLED Then, LED of three primary colors RGB for obtaining illumination light close to white light (red, green, blue)
光源を組み合わせたものもあるが高価なものとなり、一般に使用するには問題があった。 Also a combination of the light source but becomes expensive, the generally used has a problem.

【0008】また、いずれの従来例の場合も一般の白熱電球のような、ほぼ全方向に均一な配光を得ることができないという問題があった。 [0008] Any conventional example also as a general incandescent bulb case, there is a problem that it is impossible to obtain uniform light distribution in almost all directions. ,

【0009】また、LED素子は直流電源を必要とするため、一般商用電源に直接接続できないという問題があった。 Further, since the LED devices requiring a DC power supply, there is a problem that generally a commercial power source can not be connected directly.

【0010】この発明は上記のような問題点を解決するためになされたもので、簡単な構成で輝度が均一で照射範囲の広い白色光が得ることができ、また、配光パターンが簡単に変えられ、一般の商用電源に直接接続でき、 [0010] The present invention has been made to solve the above problems, the brightness with a simple construction can be broad white light irradiation range uniform to obtain, also simply light distribution pattern altered, allow direct connection to the general commercial power supply,
一般に広く使用されている白熱電球との互換性があるL L that is compatible with incandescent bulbs being generally widely used
ED電球を提供することを目的とする。 An object of the present invention is to provide an ED light bulb.

【0011】 [0011]

【課題を解決するための手段】この発明に係るLED電球は、一端に口金が設けられ、他端の開口部に向けてラッパ状に拡がるラッパ状部材と、このラッパ状部材の開口部に取付けられ内面に蛍光体の層を有する透光性カバーと、前記ラッパ状部材と前記透光性カバーにより形成された略球体の内部に設けられた基板と、この基板の前記透光性カバーに対向する外面に実装されたLED素子と、を備える。 Means for Solving the Problems] LED bulb according to the present invention, the die is provided at one end, a trumpet-shaped member extending in a trumpet shape towards the opening of the other end, attached to the opening portion of the trumpet-shaped member is a light-transmitting cover having a layer of phosphor on an inner surface, a substrate provided inside the substantially spherical body wherein are formed by a trumpet-like member and the translucent cover, facing the light-transmitting cover of the substrate comprising an LED element mounted on the outer surface of, a.

【0012】また、基板をラッパ状部材の開口部外面に平行な板状にしたものである。 [0012] is obtained by the parallel plate in the opening an outer surface of the trumpet-shaped member substrate.

【0013】また、基板を一端が口金1側に開口し他端が閉塞され筒状にしたものである。 Further, one end of the substrate is one that is open to the other end to the base 1 side was occluded tubular.

【0014】また、基板の内側面に交流を直流に変換するための電源を配置したものである。 [0014] is obtained by arranging the power supply for converting an alternating current to the inner surface of the substrate to a DC.

【0015】 [0015]

【発明の実施の形態】実施の形態1. DETAILED DESCRIPTION OF THE INVENTION Embodiment 1. 図1はこの発明の実施の形態1を示すLED電球の断面図である。 Figure 1 is a cross-sectional view of an LED bulb showing the first embodiment of the present invention. 図において1は給電機能を有する円筒状の口金、2は口金の開口端から内部側壁に沿うように配置されたリング状の絶縁体の内側壁に治って、一端が取付けられ、他端の開口部に向けてラッパ状に拡がるラッパ状部材、3はラッパ状部材2の開口部に取付けられた基板、4が基板3の外面に実装されたLED素子であり、放射は青色光または紫外線である。 Cylindrical die 1 having a power supply function in FIG, 2 is cured inside wall of the deployed ring-shaped insulator along from the open end of the mouthpiece inside the side wall, one end is attached, the other end opening of the trumpet-shaped member extending in a trumpet shape towards the part, 3 is a LED element substrate mounted in the opening of the trumpet-shaped member 2, 4 are mounted on the outer surface of the substrate 3, the radiation is in the blue or UV light . 5は基板を覆うようにしてラッパ状部材2の開口部に取付けられ、内面に蛍光体の層6を有する透光性カバーであり、紫外線の透過率は非常に低い材質とする必要がある。 5 is attached to the opening of the trumpet-shaped member 2 so as to cover the substrate, a light-transmitting cover having a layer 6 of the phosphor on the inner surface, the transmittance of ultraviolet light is required to be very low material. また、7はラッパ状部材2と透光性カバー5とで形成された略球体である。 Further, 7 is a substantially spherical body which is formed by a trumpet-like member 2 and the translucent cover 5.

【0016】蛍光体の層6はLED素子の放射が青色光のときは例えばYAGを使用し、紫外線のときは、紫外線の照射により赤色光を発する蛍光体(R)と緑色光を発光する蛍光体(G)と青色光を発する蛍光体(B)を混合したものを使用する。 [0016] Fluorescent layer 6 of the phosphor emission of LED elements using, for example YAG when the blue light, when the ultraviolet rays, the phosphor that emits red light upon irradiation with ultraviolet rays (R) and green light using a mixture body (G) and phosphor that emits blue light (B). 例えば蛍光体(R)はピーク波長が619nmのYVO 4 :Eu、Biを使用し、蛍光体(G)は例えばピーク波長が543nmのY 2 Si For example phosphor (R) is a peak wavelength of 619nm YVO 4: Eu, using Bi, phosphor (G), for example a peak wavelength of 543 nm Y 2 Si
5 Ce、Tbを使用し、蛍光体(B)は例えばピーク波長が450nmのBaMgAl 1627 :Euを使用する。 O 5 Ce, using Tb, phosphor (B) is, for example, a peak wavelength of BaMgAl 16 O 27 of 450 nm: Using the Eu. なお、YAGは青色光を黄色の可視光に波長変換する。 Incidentally, YAG to wavelength convert blue light into yellow visible light. このとき一部は波長変換されないで青色のままで透過する。 Some this time is transmitted remains blue without being wavelength converted.

【0017】この構成において、まず、口金1から直流電源が供給されるとLED素子4が青色光または紫外線を放射する。 [0017] In this configuration, first, when the DC power is supplied from a nozzle 1 LED element 4 emitting blue light or ultraviolet light. LED素子4が青色の放射光の場合は蛍光体の層6により黄色の可視光に波長変換され、透光カバー5の外に放射される。 If the LED element 4 is blue emitted light is wavelength-converted by a layer 6 of the phosphor yellow visible light, is radiated outside the translucent cover 5. このとき、青色の放射光の一部は波長変換されず、青色のまま透光カバー5の外に放射される。 At this time, a part of the blue emission light without wavelength conversion, are radiated out of the blue remained translucent cover 5. この波長変換されて透光性カバー5の外に放射された黄色と、波長変換されなかった青色とが合成され白色光として感じられる。 And yellow emitted outside this wavelength-converted by the light-transmitting cover 5, and a blue wavelength has not been converted is felt as synthesized white light.

【0018】LED素子4が紫外線放射の場合は、蛍光体の層6により赤、緑、青の可視光に波長変換され、透光性カバー5の外に放射され、これらの光が合成され白色光として感じられる。 [0018] If the LED element 4 is ultraviolet radiation, red with a layer 6 of the phosphor, green, is wavelength-converted into visible light of blue is radiated outside the translucent cover 5, white these lights are combined It is felt as light. なお、紫外線は透光性カバー5 In addition, ultraviolet light-transmitting cover 5
の外に放射されない。 Not radiated to the outside of.

【0019】このとき、蛍光体の層6から波長変換されて出射される光は方向性をもたない拡散光となる。 [0019] At this time, light emitted by wavelength conversion from the layer 6 of the phosphor becomes diffused light having no directivity. また、基板3に実装されるLED素子4の配置は自由度が高く種々のパターンが可能なので蛍光体の層6に到達する青色、または紫外線の照射強度も変化させることができる。 The arrangement of the LED elements 4 mounted on the substrate 3 can also be changed irradiation intensity of the blue or ultraviolet, to arrive so may have various patterns more freedom to the layer 6 of the phosphor. 従って、透光性カバー5から外に放射される可視光の放射パターンを変化させることが可能であり、同じLED電球の形状で異なる光強度、配光とすることができる。 Therefore, it is possible to vary the radiation pattern of visible light emitted from the translucent cover 5 to the outside, different light intensities in the form of the same LED bulb may be a light distribution. さらに、透光性カバー5内面の蛍光体の層6やラッパ状部材4及び透光性カバー5などの形状を変えることにより、種々のスタイルのLED電球が実現できる。 Further, by changing the shape, such as a layer 6 or flaring members 4 and translucent cover 5 of the translucent cover 5 an inner surface of the phosphor, LED bulbs of various styles can be realized.

【0020】以上のように、簡単な構成で照射範囲が広い白色光が得ることができ、また、透光性カバー5の蛍光体の層6で拡散光となるので、従来例のように反射鏡等のの形状、大きさに制約されず、多数のLED素子を実装できる一方、たとえ、LED素子の数を多数用いなくとも、透光性カバー5の輝度を均一にすることができる。 [0020] As described above, irradiation range with a simple configuration can be broad white light obtained, also, since the diffused light with a layer 6 of the phosphor of the translucent cover 5, the reflection as in the prior art shape of such mirror, without being restricted by the size, whereas that can implement a large number of LED elements, for example, without using a large number of the number of LED elements, it is possible to equalize the luminance of the translucent cover 5. さらに、種々の配光パターン実現することができる。 Furthermore, it is possible to realize various light distribution patterns.

【0021】実施の形態2. [0021] Embodiment 2. 図2は実施の形態2を示すLED電球の断面図である。 Figure 2 is a cross-sectional view of an LED bulb showing the second embodiment. 図2は実施の形態1を示す図1に交流を直流に変換するための電源回路8を基板3 Figure 2 is a power supply circuit 8 for converting alternating current to FIG. 1 showing the first embodiment to a DC substrate 3
の口金1側に取付板9を介して実装したものである。 To the base 1 side is an implementation through the mounting plate 9.

【0022】この構成により、商用電源を直接印加することができ、従来の白熱電球と互換性があり同様の使い方ができる。 [0022] With this configuration, it is possible to apply commercial power directly, there is a conventional incandescent light bulbs and compatibility can similar use. なお、図3に示すように、基板3を両面基板10としてもよい。 Incidentally, as shown in FIG. 3, the substrate 3 may be a double-sided substrate 10. この場合、両面基板10を使用しているので部品点数が減り、シンプルで低コストにすることができる。 In this case, the use of the double-sided substrate 10 reduces the number of parts can be simple and low cost.

【0023】実施の形態3. [0023] Embodiment 3. 図4は実施の形態3を示すLED電球の断面図である。 Figure 4 is a cross-sectional view of an LED bulb showing the third embodiment. 図において実施の形態1の図1と同等の部品には同じ符号を付し説明を省略する。 The same parts as in FIG. 1 of the first embodiment in FIG omitted denoted by the same reference numerals.
11は一端が口金1側に開口し他端が閉塞された筒状の基板であり、この基板11のLED電球の軸方向に沿い透光性カバー5に対向する外側壁11aと軸方向に直角な外側面11bにLED素子4を実装し、この筒状基板11の内側に電源回路8を取付け板9を介して実装したものである。 11 has one end a cylindrical substrate open other end is closed to the base 1 side, at right angles to the outer wall 11a and axially opposite to the translucent cover 5 along the axial direction of the LED light bulb of the substrate 11 such an LED element 4 is mounted on the outer surface 11b, it is obtained by mounting through the mounting plate 9 inside the power supply circuit 8 of the tubular substrate 11.

【0024】この構成により、特にLED電球の軸に直角方向にも強い光を放射させることができ、照射範囲を広くすることができる。 [0024] With this arrangement, in particular a strong light in the direction perpendicular to the axis of the LED light bulb can emit, it is possible to widen the irradiation range.

【0025】 [0025]

【発明の効果】以上のように、一端に口金が設けられ、 As is evident from the foregoing description, the mouthpiece is provided at one end,
他端の開口部に向けてラッパ状に拡がるラッパ状部材と、このラッパ状部材の開口部に取付けられ内面に蛍光体の層を有する透光性カバーと、前記ラッパ状部材と前記透光性カバーにより形成された略球体の内部に設けられた基板と、この基板の前記透光性カバーに対向する外面に実装されたLED素子と、を備えたので、簡単な構成で輝度が均一で照射範囲が広い白色光を得ることができ、LED素子を多数実装させることが可能となり、大きな光束を得られるだけでなく、また、配光パターンの種類も多くすることができる。 A trumpet-shaped member extending in a trumpet shape towards the opening of the other end, and the light-transmitting cover having a layer of the trumpet-shaped member phosphor on the inner surface attached to the opening of the light transmitting and said flaring member a substrate provided substantially in the interior of the sphere formed by the cover, and the LED element mounted on an outer surface which faces the light-transmitting cover of the substrate, since with a irradiation with uniform luminance by a simple structure range can be obtained broad white light, it can be many mounting the LED element and will not only obtain a large light flux, also it is possible to increase the kinds of light distribution patterns.

【0026】また、基板をラッパ状部材の開口部外面に平行な板状にしたので、LED素子の実装が容易となるだけでなく、LED素子の配置に自由度が大きいため、 Further, since the substrate like a horn member parallel plate to the opening an outer surface of the well implementation of LED elements is facilitated, because a large degree of freedom in the arrangement of the LED elements,
また、配光パターンを簡単に変えることができる。 Further, it is possible to change the light distribution pattern easily.

【0027】また、基板を一端が口金1側に開口し他端が閉塞され筒状にしたので、LED電球の軸に直角方向にも強い光を放射させることができ、照射範囲を広くすることができる。 Further, since one end of the substrate is opening and the other end to the base 1 side was occluded tubular, a strong light in the direction perpendicular to the axis of the LED light bulb can emit, widening the irradiation range can. また、LED素子の配置によってはL Also, depending on the arrangement of the LED elements L
ED電球の軸に直角方向にのみ強い光を放射することもできる。 It is also possible to emit strong light only in a direction perpendicular to the axis of the ED bulb.

【0028】また、基板の内側面に交流を直流に変換するための電源を配置したので、商用電源を直接印加することができ、従来の白熱電球と同様の使い方ができる。 Further, since the arrangement the power to convert the AC to the inner surface of the substrate to a DC, can be applied to a commercial power source directly, it is the same way as the conventional incandescent light bulb.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 この発明の実施の形態1を示すLED電球の断面図である。 1 is a cross-sectional view of an LED bulb showing the first embodiment of the present invention.

【図2】 この発明の実施の形態2を示すLED電球の断面図である。 2 is a cross-sectional view of an LED bulb showing the second embodiment of the present invention.

【図3】 この発明の実施の形態2を示すLED電球の断面図である。 3 is a cross-sectional view of an LED bulb showing the second embodiment of the present invention.

【図4】 この発明の実施の形態3を示すLED電球の断面図である。 4 is a cross-sectional view of an LED bulb showing the third embodiment of the present invention.

【図5】 従来のLED素子を使用した電球の断面図である。 5 is a cross-sectional view of the bulb using a conventional LED element.

【図6】 従来のLED素子を使用した信号灯の断面図である。 6 is a cross-sectional view of using the conventional LED element signal lamp.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 口金、2 ラッパ状部材、3、11、基板、4 L 1 mouthpiece, 2 trumpet-shaped member, 3 and 11, a substrate, 4 L
ED素子、5 透光性カバー、6 蛍光体の層、7 略球体、 10 両面基板。 ED element 5 translucent cover, 6 phosphor layer, 7 substantially spherical, 10 double-sided substrate.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 今井 康雄 神奈川県鎌倉市大船二丁目14番40号 三菱 電機照明株式会社内 (72)発明者 山田 健一 神奈川県鎌倉市大船二丁目14番40号 三菱 電機照明株式会社内 Fターム(参考) 5F041 AA14 DC07 DC23 DC82 DC84 EE25 FF11 ────────────────────────────────────────────────── ─── of the front page continued (72) inventor Yasuo Imai Kamakura, Kanagawa Prefecture Ofuna chome 14th No. 40 Mitsubishi electric lighting Co., Ltd. in the (72) inventor Kenichi Yamada Kamakura, Kanagawa Prefecture Ofuna chome 14th No. 40 Mitsubishi electric lighting Co., Ltd. in the F-term (reference) 5F041 AA14 DC07 DC23 DC82 DC84 EE25 FF11

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 一端に口金が設けられ、他端の開口部に向けてラッパ状に拡がるラッパ状部材と、 このラッパ状部材の開口部に取付けられ内面に蛍光体の層を有する透光性カバーと、 前記ラッパ状部材と前記透光性カバーにより形成された略球体の内部に設けられた基板と、 この基板の前記透光性カバーに対向する外面に実装されたLED素子と、 を備えたことを特徴とするLED電球。 1. A one die is provided on, translucent having a trumpet-like member extending in a trumpet shape towards the opening of the other end, a layer of the trumpet-shaped member phosphor on the inner surface is attached to the opening of comprising a cover, a substrate provided inside the substantially spherical body formed by the translucent cover and the trumpet-shaped member, and a LED element mounted on an outer surface which faces the light-transmitting cover of the substrate LED bulb, characterized in that the.
  2. 【請求項2】 基板をラッパ状部材の開口部外面に平行な板状にしたことを特徴とする請求項1記載のLED電球。 2. A LED bulb according to claim 1, characterized in that the substrate in a trumpet-shaped member parallel to the plate in the opening an outer surface of the.
  3. 【請求項3】 基板を一端が口金1側に開口し他端が閉塞され筒状にしたことを特徴とする請求項1記載のLE 3. A LE of claim 1, wherein one end of the substrate, characterized in that the open other end was occluded tubular to the base 1 side
    D電球。 D bulb.
  4. 【請求項4】 基板の内側面に交流を直流に変換するための電源を配置したことを特徴とする請求項1乃至請求項3のいずれかに記載のLED電球。 4. A LED bulb according to any of claims 1 to 3, characterized in that a power supply for converting an alternating current to the inner surface of the substrate to a DC.
JP2000051708A 2000-02-28 2000-02-28 Led electric bulb Pending JP2001243807A (en)

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