JP2001243807A - Led electric bulb - Google Patents
Led electric bulbInfo
- 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
- light
- substrate
- led
- translucent cover
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-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
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit 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
- F21K9/232—Retrofit 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
- F21V3/12—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
Description
【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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED bulb capable of producing white light using an LED element as a light source.
【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。図において４はＬＥＤ素子、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。この構成により、寿命が長いものである。2. Description of the Related Art FIG. 5 is a side view of a conventional light bulb using an LED element disclosed in Japanese Utility Model Publication No. 3034744 (conventional example 1). In the figure, 4 is an LED element, 13
Denotes a light bulb body, and 14 denotes an electronic circuit storage unit that stores an electronic circuit. With this configuration, the life is long.
【０００３】また、図６は、例えば特開平０９−２６５
８０７号公報（従来例２）に示されたＬＥＤ信号灯であ
る。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。このＬＥＤ素子２４は全て青，
黄，赤のいずれかに発光する。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。FIG. 6 shows, for example, Japanese Patent Application Laid-Open No. 09-265.
807 (conventional example 2). In the figure, 21 is a reflecting mirror, 22 is an LED light source, and a plurality of LED elements 24 are mounted on a circuit board 23 arranged in a hexagonal cylinder. The LED elements 24 are all blue,
Emit either yellow or red light. Reference numeral 25 denotes a colorless and transparent front glass, 26 denotes a cylindrical support tube, 1 denotes a base, 27 denotes a lighting circuit board, 28 denotes a disc-shaped circuit board provided on the light emitting opening side, and 29 denotes a disc-shaped circuit board. 28 are a plurality of direct-emitting LED elements provided on the LED device 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
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。[0004] Since the plurality of LEDs 24 are configured to face the reflecting mirror 21 in this manner, the light of the LED elements 24 can be used effectively, and the direct-light LEs are provided in front of the LED elements 24.
Since the D element 29 is provided, the brightness uniformity of almost the entire surface of the front glass 25 can be increased, and the visibility is good.
【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。However, the prior art 1 uses several LED elements 4, but the number of LED elements 4 to be mounted is limited due to the size of the base 1 and the like. Cannot be increased so much that it is used for nightlights and the like, and since the bulb 13 is not treated at all, there is a problem that the brightness is not uniform and the irradiation range is not wide.
【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。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。Further, the conventional example 2 has a complicated structure, and simply irradiates light emitted in any one of blue, yellow and red through the colorless and transparent front glass 25. There was a problem that the device could not be applied. Further, in order to make the brightness of the front glass 25 uniform, there is a problem that the shape and size of the reflecting mirror 21 and the number of LED elements are restricted.
【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。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
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。On the other hand, LDE elements that emit white light have not yet been put to practical use. Then, in order to obtain irradiation light close to white light, LEDs of three primary colors of RGB (red, green, blue)
Some light sources are combined, but they are expensive, and there is a problem in general use.
【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。、Further, in each of the conventional examples, there is a problem that a uniform light distribution cannot be obtained in almost all directions as in a general incandescent lamp. ,
【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 element requires a DC power supply, there is a problem that it cannot be directly connected to a general commercial power supply.
【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、
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
ＥＤ電球を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to obtain white light having a uniform luminance and a wide irradiation range with a simple structure, and to easily form a light distribution pattern. Can be changed and directly connected to general commercial power,
L compatible with commonly used incandescent lamps
It is intended to provide an ED 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。An LED bulb according to the present invention is provided with a base at one end, and a flared member extending in a trumpet shape toward an opening at the other end, and attached to the opening of the flared member. A light-transmitting cover having a phosphor layer on an inner surface thereof; a substrate provided inside a substantially spherical body formed by the flared member and the light-transmitting cover; and a substrate facing the light-transmitting cover of the substrate. And an LED element mounted on the outer surface.
【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。Further, the substrate is formed in a plate shape parallel to the outer surface of the opening of the trumpet-shaped member.
【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, the substrate has a cylindrical shape with one end open to the base 1 and the other end closed.
【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。Further, a power supply for converting AC into DC is arranged on the inner surface of the substrate.
【００１５】[0015]
【発明の実施の形態】実施の形態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。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。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。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。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a cross-sectional view of an LED bulb according to Embodiment 1 of the present invention. In the drawing, reference numeral 1 denotes a cylindrical base having a power supply function, and 2 denotes a ring-shaped insulator arranged along the inner side wall from the open end of the base to be cured at one end and an opening at the other end. A trumpet-like member spreading in a trumpet-like manner toward the portion, 3 is a board attached to the opening of the trumpet-like member 2, 4 is an LED element mounted on the outer surface of the board 3, and emission is blue light or ultraviolet light. . Reference numeral 5 denotes a light-transmitting cover which is attached to the opening of the flared member 2 so as to cover the substrate, and has a phosphor layer 6 on the inner surface. Reference numeral 7 denotes a substantially spherical body formed by the trumpet-shaped 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。例えば蛍光体（Ｒ）はピーク
波長が６１９ｎｍのＹＶＯ4 ：Ｅｕ、Ｂｉを使用し、蛍
光体（Ｇ）は例えばピーク波長が５４３ｎｍのＹ2Ｓｉ
Ｏ5Ｃｅ、Ｔｂを使用し、蛍光体（Ｂ）は例えばピーク
波長が４５０ｎｍのＢａＭｇＡｌ16Ｏ27：Ｅｕを使用す
る。なお、ＹＡＧは青色光を黄色の可視光に波長変換す
る。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。The phosphor layer 6 uses, for example, YAG when the LED element emits blue light, and a phosphor (R) that emits red light and a fluorescent light that emits green light when irradiated with ultraviolet light. A mixture of the body (G) and the phosphor (B) emitting blue light is used. For example, the phosphor (R) uses YVO 4 : Eu, Bi having a peak wavelength of 619 nm, and the phosphor (G) uses, for example, Y 2 Si having a peak wavelength of 543 nm.
O 5 Ce and Tb are used, and for the phosphor (B), for example, BaMgAl 16 O 27 : Eu having a peak wavelength of 450 nm is used. Note that YAG converts the wavelength of blue light into yellow visible light. At this time, a part of the light is transmitted in a blue color without wavelength conversion.
【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。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。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。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。In this configuration, first, when DC power is supplied from the base 1, the LED element 4 emits blue light or ultraviolet light. When the LED element 4 emits blue emitted light, the wavelength is converted into yellow visible light by the phosphor layer 6 and emitted outside the light-transmitting cover 5. At this time, a part of the blue radiated light is not converted in wavelength and is radiated out of the light-transmitting cover 5 as blue. The yellow that has been wavelength-converted and radiated out of the translucent cover 5 and the blue that has not been wavelength-converted are synthesized and felt as 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。なお、紫外線は透光性カバー５
の外に放射されない。When the LED element 4 emits ultraviolet light, the wavelength is converted into red, green, and blue visible light by the phosphor layer 6 and emitted out of the translucent cover 5, and these lights are combined to form white light. Feel as light. The ultraviolet light is transmitted through the translucent cover 5.
Does not radiate outside.
【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。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。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。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。At this time, the light whose wavelength is converted and emitted from the phosphor layer 6 is diffused light having no directivity. Further, since the arrangement of the LED elements 4 mounted on the substrate 3 has a high degree of freedom and allows various patterns, the irradiation intensity of blue or ultraviolet rays reaching the phosphor layer 6 can also be changed. Accordingly, it is possible to change the radiation pattern of the visible light radiated from the translucent cover 5 to the outside, and it is possible to provide different light intensity and light distribution with the same LED bulb shape. Further, by changing the shapes of the phosphor layer 6 on the inner surface of the translucent cover 5, the flared member 4, the translucent cover 5, and the like, various styles of LED bulbs 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。さらに、種々の配光パターン実現することができ
る。As described above, white light having a wide irradiation range can be obtained with a simple structure, and diffused light is generated by the phosphor layer 6 of the translucent cover 5, so that the light is reflected as in the conventional example. A large number of LED elements can be mounted without being limited by the shape and size of the mirror and the like, but the luminance of the translucent cover 5 can be made uniform without using a large number of LED elements. Further, various light distribution patterns can be realized.
【００２１】実施の形態２．図２は実施の形態２を示す
ＬＥＤ電球の断面図である。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
の口金１側に取付板９を介して実装したものである。Embodiment 2 FIG. FIG. 2 is a cross-sectional view of an LED bulb according to the second embodiment. FIG. 2 shows a power supply circuit 8 for converting AC to DC in FIG.
Is mounted on the side of the base 1 via 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。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。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。With this configuration, a commercial power supply can be directly applied, and it is compatible with a conventional incandescent lamp and can be used in the same manner. The substrate 3 may be a double-sided substrate 10 as shown in FIG. In this case, since the double-sided board 10 is used, the number of components is reduced, and the cost can be simplified and reduced.
【００２３】実施の形態３．図４は実施の形態３を示す
ＬＥＤ電球の断面図である。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。
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。Embodiment 3 FIG. FIG. 4 is a cross-sectional view of an LED bulb showing the third embodiment. In the figure, the same reference numerals are given to the same components as those in FIG.
Reference numeral 11 denotes a cylindrical substrate having one end opened toward the base 1 and the other end closed, and is perpendicular to the outer wall 11a facing the translucent cover 5 along the axial direction of the LED bulb of the substrate 11 and perpendicular to the axial direction. The LED element 4 is mounted on the outer surface 11b, and the power supply circuit 8 is mounted on the inside of the cylindrical substrate 11 via the mounting plate 9.
【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。According to this structure, intense light can be radiated particularly in the direction perpendicular to the axis of the LED bulb, and the irradiation range can be widened.
【００２５】[0025]
【発明の効果】以上のように、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。As described above, the base is provided at one end,
A trumpet-shaped member extending in a trumpet shape toward the opening at the other end, a translucent cover attached to the opening of the trumpet-shaped member and having a phosphor layer on an inner surface, the trumpet-shaped member and the translucent A substrate provided inside a substantially spherical body formed by the cover and an LED element mounted on the outer surface of the substrate facing the light-transmitting cover are provided. White light with a wide range can be obtained, and a large number of LED elements can be mounted, so that not only a large luminous flux can be obtained, but also the types of light distribution patterns can be increased.
【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、
また、配光パターンを簡単に変えることができる。Further, since the substrate is formed in a plate shape parallel to the outer surface of the opening of the flared member, not only the mounting of the LED elements is facilitated, but also the degree of freedom in the arrangement of the LED elements is large.
Also, the light distribution pattern can be easily changed.
【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。また、ＬＥＤ素子の配置によっては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。Further, since the substrate has a cylindrical shape with one end opened toward the base 1 and the other end closed, strong light can be emitted in a direction perpendicular to the axis of the LED bulb, and the irradiation range can be widened. Can be. Also, depending on the arrangement of the LED elements, L
It is also possible to emit strong light only in the 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 a power supply for converting AC to DC is disposed on the inner surface of the substrate, commercial power can be directly applied, and the same usage as a conventional incandescent lamp can be performed.
【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。FIG. 1 is a cross-sectional view of an LED bulb according to Embodiment 1 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。FIG. 2 is a cross-sectional view of an LED bulb according to a 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。FIG. 3 is a cross-sectional view of an LED bulb according to a 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。FIG. 4 is a sectional view of an LED bulb showing a 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。FIG. 5 is a cross-sectional view of a light 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。FIG. 6 is a cross-sectional view of a signal light using a conventional LED element.
１ 口金、２ ラッパ状部材、３、１１、基板、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。1 cap, 2 trumpet-shaped members, 3, 11, substrate, 4 L
ED element, 5 translucent cover, 6 phosphor layer, 7 substantially spherical body, 10 double-sided board.
───────────────────────────────────────────────────── 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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuo Imai 2--14-40 Ofuna, Kamakura City, Kanagawa Prefecture Inside Mitsubishi Electric Lighting Co., Ltd. F-term (reference) in Denki Lighting Co., Ltd. 5F041 AA14 DC07 DC23 DC82 DC84 EE25 FF11
Claims (4)
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 translucent member having a base provided at one end and expanding in a trumpet shape toward an opening at the other end, and a phosphor layer attached to the opening of the trumpet member and having a phosphor layer on an inner surface. A cover, a substrate provided inside a substantially spherical body formed by the trumpet-shaped member and the translucent cover, and an LED element mounted on an outer surface of the substrate facing the translucent cover. An LED bulb characterized in that:
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. The LED bulb according to claim 1, wherein the substrate is formed in a plate shape parallel to the outer surface of the opening of the trumpet-shaped member.
塞され筒状にしたことを特徴とする請求項１記載のＬＥ
Ｄ電球。3. The LE according to claim 1, wherein the substrate has a cylindrical shape with one end open to the base 1 and the other end closed.
D bulb.
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. The LED bulb according to claim 1, wherein a power supply for converting alternating current to direct current is disposed on an inner surface of the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000051708A JP2001243807A (en) | 2000-02-28 | 2000-02-28 | Led electric bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000051708A JP2001243807A (en) | 2000-02-28 | 2000-02-28 | Led electric bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001243807A true JP2001243807A (en) | 2001-09-07 |
Family
ID=18573324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000051708A Pending JP2001243807A (en) | 2000-02-28 | 2000-02-28 | Led electric bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001243807A (en) |
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