JP2009158533A - Light generating device - Google Patents

Light generating device Download PDF

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JP2009158533A
JP2009158533A JP2007331873A JP2007331873A JP2009158533A JP 2009158533 A JP2009158533 A JP 2009158533A JP 2007331873 A JP2007331873 A JP 2007331873A JP 2007331873 A JP2007331873 A JP 2007331873A JP 2009158533 A JP2009158533 A JP 2009158533A
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light
light emitting
base
emitting element
section
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Takehisa Saito
雄久 斉藤
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    • 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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/66—Details of globes or covers forming part of the light source
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light generating device capable of achieving uniform dispersion of light even if the weight of a portion where a light is dispersed is reduced. <P>SOLUTION: The light generating device has a base section for mounting a circuit board having a plurality of light emitting elements juxtaposed thereon, and a light transmissive section having engaging portions each engaging to side ends of the bas section and a tubular external circumferential surface between the engaging portions to emit lights from the light emitting elements. The light transmissive section includes an internal light transmissive section for covering the light emitting elements spaced apart from the light emitting elements according to the light emitting elements, and an external circumferential section provided outside the internal light transmissive section, wherein the end of a hollow section consisting of a gap between the internal light transmissive section and the external circumferential sections has a rectangularly round cross section. A light passing through near the corner portions of the rectangularly round hollow portion is further dispersed, and a light passing through the light transmissive portion can be uniformly dispersed when viewing the light transmissive portion from the outside. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は複数の発光素子を実装して光透過部より光を射出する光発生装置に関し、特に所定の形状の蛍光灯などの照明装置の代わりに使用可能な光発生装置に関する。   The present invention relates to a light generation device that mounts a plurality of light emitting elements and emits light from a light transmission portion, and more particularly to a light generation device that can be used in place of a lighting device such as a fluorescent lamp having a predetermined shape.

発光ダイオードの如き発光素子を複数個並べて配置して、ネオン管や蛍光灯などの管状の発光装置を構成する技術が知られており、このような既存のネオン管や蛍光灯などの発光装置の代替装置としての地位がクローズアップされてきている。これは、発光ダイオードのような発光装置を用いることで、消費電力を低減することができ、蛍光灯や電球などに比べて長期間の寿命があり長く使用することが可能であるなどの利点がある。   A technique for constructing a tubular light-emitting device such as a neon tube or a fluorescent lamp by arranging a plurality of light-emitting elements such as light-emitting diodes is known. Such a light-emitting device such as a neon tube or a fluorescent lamp is known. The status as an alternative device has been highlighted. This is because light-emitting devices such as light-emitting diodes can be used to reduce power consumption and have a longer life and longer use than fluorescent lamps and light bulbs. is there.

このような発光素子を用いた管状の発光装置の例としては、ネオン管形状の外観を有し、可とう性を有する光源部の光照射側に管状の光透過部を設けた曲線可能はLED光源なる装置が知られている（例えば、特許文献１参照。）。光源部は数個の発光素子を一組にしたものを直列状に並べて構成されており、管状の光透過部を必要に応じて曲げて装飾、看板や芸術作品などに使用することができる。   An example of a tubular light-emitting device using such a light-emitting element is an LED that has a neon tube-shaped appearance and is provided with a tubular light transmission part on the light irradiation side of a flexible light source part. An apparatus serving as a light source is known (see, for example, Patent Document 1). The light source part is configured by arranging a series of light emitting elements in series, and the tubular light transmission part can be bent as necessary to be used for decoration, signage, art works, and the like.

また、このような複数の発光素子を用いた発光装置としては、同様なネオン管を模した発光装置が知られており（例えば、特許文献２参照。）、円筒状の光拡散部の下部に設けられた２重の箱状の筐体内に複数の発光ダイオードが並べて配設され、発光ダイオードからの光が円筒状の光拡散部を介して射出される構造を有している。   As a light-emitting device using such a plurality of light-emitting elements, a light-emitting device simulating a similar neon tube is known (see, for example, Patent Document 2), and is provided below a cylindrical light diffusion portion. A plurality of light emitting diodes are arranged side by side in a double box-shaped casing provided, and light from the light emitting diodes is emitted through a cylindrical light diffusion portion.

さらに他の構造の発光装置として、剛性のある中空のチューブに一群の発光ダイオードを並べて配置した帯状の回路基板を内蔵させた構造の発光装置も知られている（例えば、特許文献３参照。）。発光には独自の電源が使用され、該電源に配線を介して前記チューブの両端のコネクター部が接続され、そのコネクター部から帯状の回路基板に給電されて各発光ダイオードが発光するように構成されている。   As another light-emitting device, a light-emitting device having a structure in which a band-shaped circuit board in which a group of light-emitting diodes are arranged in a rigid hollow tube is incorporated is also known (see, for example, Patent Document 3). . A unique power source is used for light emission, and the connector portions at both ends of the tube are connected to the power source via wiring, and each light emitting diode emits light by being fed from the connector portion to the belt-like circuit board. ing.

米国特許出願公開 ２００６年 第００２８８３７号US Patent Application Publication 2006 No. 0028837 米国特許公報 第６３６１１８６号公報US Pat. No. 6,361,186 米国特許公報 第６２８３６１２号公報US Pat. No. 6,283,612

上述の如き発光装置は、ネオン管の如き発光装置の代わりに使用することで、消費電力を低減することができ、蛍光灯や電球などに比べて長寿命であるなどの利点を享有でき、しかも特許文献１の装置では、ネオン管のように比較的に自由に曲げて使用でき、且つその曲げる作業についても個々の発光素子自体が壊れるということが極めて稀であることから、取り付け作業も容易となっている。   The light emitting device as described above can be used in place of a light emitting device such as a neon tube to reduce power consumption, and can have advantages such as a longer life than a fluorescent lamp or a light bulb. In the apparatus of Patent Document 1, since it can be used by being bent relatively freely like a neon tube, and it is extremely rare that the individual light emitting elements themselves are broken in the bending operation, the mounting operation is easy. It has become.

発光ダイオードの如き発光素子を用いて例えば直管蛍光灯の代替装置を構成しようとした場合、その外形寸法を蛍光灯の規格に合わせることが製品の汎用性を持たせるために有効であり、本件出願人は特願２００７−０５２５３６号の願書に添付した明細書及び図面に、乳半色からなるアクリル系樹脂からなる円柱状の導光体を発光素子上に設けた技術を提案している。   For example, when trying to construct an alternative device for a straight tube fluorescent lamp using a light emitting element such as a light emitting diode, it is effective to make the external dimensions conform to the standard of a fluorescent lamp in order to have versatility of the product. The applicant has proposed a technique in which a columnar light guide made of an acrylic resin having a milk color is provided on a light emitting element in the specification and drawings attached to the application of Japanese Patent Application No. 2007-052536.

ところが、このような乳半色からなるアクリル系樹脂からなる円柱状の導光体を設けた場合には、拡散体として機能する導光体の重量が重くなり、例えば一対のソケットの間に直管タイプの蛍光灯を挟んで天井に取り付ける場合には、ソケットから導光体を設けた光発生装置が容易に重みで脱落することがあり、また、その天井への取り付け作業も重量分だけ困難となる。   However, when a cylindrical light guide made of an acrylic resin having a semi-transparent color is provided, the weight of the light guide that functions as a diffuser becomes heavy, for example, directly between a pair of sockets. When mounting on a ceiling with a tube-type fluorescent lamp in between, the light generator provided with the light guide from the socket may easily fall off due to the weight, and it is also difficult to attach to the ceiling by the weight It becomes.

このような問題を解決するため、拡散体として機能する導光体を薄い外周部だけの構造としたり、導光体の内部に中空部を形成することで重量を減らす手段も考えられるが、単純に薄い外周部だけや中空部だけを構成したりしても、光を有効に拡散しながら均一な光透過を図ることができず、発光素子からの光が偏ったものになってしまう。   In order to solve such a problem, a light guide functioning as a diffuser may have a structure having only a thin outer peripheral portion, or a means for reducing the weight by forming a hollow portion inside the light guide may be considered. Even if only a thin outer peripheral part or only a hollow part is formed, uniform light transmission cannot be achieved while light is effectively diffused, and light from the light emitting element is biased.

そこで、本発明は上述の技術的な課題に鑑み、拡散体の重量を減らした場合であっても、光の均一な拡散を実現できるような光発生装置の提供を目的とする。   In view of the above technical problems, an object of the present invention is to provide a light generator that can realize uniform diffusion of light even when the weight of the diffuser is reduced.

上述の技術的な課題を解決するために、本発明の光発生装置は、複数の発光素子が並べて配置された回路基板部と、所定の形状に延長され前記回路基板部を実装するベース部と、前記ベース部の延長方向に沿って該ベース部の側端部にそれぞれ係合する係合部を有してなり該係合部の間の管状外周面より前記発光素子からの光を射出する光透過部とを有し、前記光透過部には前記発光素子に対応して前記発光素子から離間して該発光素子を覆う内側光透過部と、内側光透過部の外側に設けられた外周部とが設けられ、前記内側光透過部と前記外周部の間の空隙からなる中空部の端部は断面角丸形状とされていることを特徴とする。   In order to solve the above technical problem, a light generating device of the present invention includes a circuit board portion in which a plurality of light emitting elements are arranged and a base portion that is extended to a predetermined shape and mounts the circuit board portion. The light emitting device emits light from the tubular outer peripheral surface between the engaging portions, each of which has an engaging portion that engages with a side end portion of the base portion along the extending direction of the base portion. A light transmitting portion, the light transmitting portion corresponding to the light emitting element and spaced apart from the light emitting element to cover the light emitting element, and an outer periphery provided outside the inner light transmitting portion And an end portion of the hollow portion formed by a gap between the inner light transmitting portion and the outer peripheral portion is rounded in cross section.

上述の構成によれば、前記内側光透過部と前記外周部の間の空隙からなる中空部の形状を断面角丸形状とすることで、当該中空部の角部付近を通過する光は断面鋭角となるような形状と比較した場合に一層拡散され、外側から光透過部を見た場合に透過してくる光が不均一になるような光透過を未然に防止することができる。また、中空部の端部は断面角丸形状とすることで、光透過部を形成する樹脂材料の押し出し加工のための金型も鋭角な角度を持たないために、長寿命化させることができ、押し出し時の成型精度も良くなるために、光透過部品の製造時の歩留まりを向上させることができる。   According to the above-described configuration, the shape of the hollow portion formed by the gap between the inner light transmitting portion and the outer peripheral portion is rounded in cross section, so that light passing near the corner of the hollow portion has an acute angle in cross section. It is possible to prevent light transmission that is further diffused when compared with such a shape and that the light that is transmitted when the light transmission part is viewed from the outside becomes non-uniform. In addition, the end of the hollow part has a rounded cross-sectional shape, so that the mold for extruding the resin material forming the light transmission part does not have an acute angle, so the life can be extended. Since the molding accuracy at the time of extrusion is improved, the yield at the time of manufacturing the light transmitting component can be improved.

このような構成の光発生装置においては、前記ベース部に係合部を介して前記光透過部を係合した場合、前記ベース部と前記光透過部の外周同士は連続する外周部を形成するように構成することもでき、また、前記ベース部と前記光透過部で構成される連続する外周部は、蛍光灯規格の形状に応じた形状を有するものとすることができる。例えば直管蛍光灯の４形〜１１０形、丸形蛍光灯の９形〜４０形などの種々の規格に沿った形状とすることで、既存の照明器具に特に変更なく取り付けることも可能である。   In the light generating device having such a configuration, when the light transmitting portion is engaged with the base portion via an engaging portion, the outer periphery of the base portion and the light transmitting portion forms a continuous outer peripheral portion. Moreover, the continuous outer peripheral part comprised by the said base part and the said light transmissive part can have a shape according to the shape of a fluorescent lamp specification. For example, by adopting a shape that complies with various standards such as a straight tube fluorescent lamp type 4 to 110 type and a round fluorescent lamp type 9 to 40 type, it can be attached to an existing lighting fixture without any particular change. .

所要の規格に応じた外形のベース部と光透過部を構成した場合において、光透過部をアクリル系樹脂材とすることができ、例えばその透過率を約６０％から８８％の程度の乳半材とすることで、本発明の光発生装置を明るく且つ十分な拡散効果が得られる照明として機能させることができる。また、乳半色のアクリル系樹脂材を光透過部に使用する場合においては、白色発光の例えばチップ型LEDを回路基板上に所定間隔空けて複数配列するように構成することもできる。   In the case where the base portion and the light transmitting portion are configured in accordance with the required standards, the light transmitting portion can be made of an acrylic resin material. For example, the milk half whose transmittance is about 60% to 88%. By using the material, the light generation device of the present invention can function as illumination that can obtain a bright and sufficient diffusion effect. In addition, when a half-colored acrylic resin material is used for the light transmission part, a plurality of, for example, chip-type LEDs that emit white light may be arranged on the circuit board at predetermined intervals.

本発明の光発生装置を用いれば、中空部の角丸の角部付近を通過する光は一層拡散され、外側から光透過部を見た場合に該光透過部を透過する光を均一に拡散させることができる。また、中空部の角を角丸形状とすることで、加工のし易さも格段に改善される。   With the light generator of the present invention, the light passing near the corners of the rounded corners of the hollow part is further diffused, and when the light transmitting part is viewed from the outside, the light passing through the light transmitting part is uniformly diffused. Can be made. In addition, by making the corners of the hollow portion rounded, the ease of processing is greatly improved.

本発明の光発生装置の実施形態について、図面を参照しながら説明する。図１は本実施形態の直管蛍光灯に外形を合わせた光発生装置１０を一部破断して示す斜視図である。図１に示すように、ほぼ円柱状の光透過部１１の図中下部側にはアルミニウムで構成されたベース部１４が係合するように構成されており、そのベース部１４の内側にはチップ型LED１８が複数個実装された回路基板１７が挿入されるように構成されている。   An embodiment of a light generator of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a light generator 10 having an outer shape matched to the straight tube fluorescent lamp of the present embodiment. As shown in FIG. 1, a base portion 14 made of aluminum is engaged with a substantially cylindrical light transmitting portion 11 in the lower part of the figure, and a chip is placed inside the base portion 14. A circuit board 17 on which a plurality of type LEDs 18 are mounted is inserted.

光透過部１１は乳半色のアクリル系樹脂材を用いて樹脂の押し出し加工により製造されており、その材料の透過率は約６０％から８８％の程度に設定されている。本実施形態において光透過部１１に使用される例えばアクリル系樹脂が使用されるが、その他にもポリカーボネート樹脂、塩化ビニル樹脂、ポリスチレン樹脂、ポリエステル樹脂などが挙げられるが、これらの共重合体でも構わない。中でも透明性、耐光性の良好なアクリル樹脂がもっとも好ましい。アクリル樹脂としては、メチルメタクリレート単独あるいはこれとメチルアクリレート、ブチルアクリレート、エチルヘキシルアクリレート等のアクリレート類との共重合物であってもよい。   The light transmission part 11 is manufactured by resin extrusion using a half-colored acrylic resin material, and the transmittance of the material is set to about 60% to 88%. In the present embodiment, for example, an acrylic resin used for the light transmitting portion 11 is used, and other examples include polycarbonate resin, vinyl chloride resin, polystyrene resin, polyester resin, and the like. Absent. Among them, an acrylic resin having excellent transparency and light resistance is most preferable. The acrylic resin may be methyl methacrylate alone or a copolymer of this with acrylates such as methyl acrylate, butyl acrylate, and ethylhexyl acrylate.

このような乳半色のアクリル系樹脂は、光源の光を拡散させるために白色顔料が添加されており、その白色 顔料を添加した乳半色 樹脂からなる光透過部１１の可視光線透過率は６０〜８８％と通常よりも高い透過率を有しているものがより好ましい。   In such a milk semi-colored acrylic resin, a white pigment is added to diffuse the light of the light source, and the visible light transmittance of the light transmitting portion 11 made of the milk semi-colored resin to which the white pigment is added is What has the transmittance | permeability higher than usual with 60-88% is more preferable.

乳半色樹脂とするために樹脂材料に添加される白色顔料としては、酸化チタン、酸化バリウム、タルク、硫酸バリウム、水酸化アルミニウム、シリカ、マイカ、炭酸カルシウム、硫酸カルシウム、クレーなどの無機系顔料およびポリマービーズなどの有機系顔料が挙げられる。これらの中では硫酸バリウム、炭酸カルシウム、酸化チタンが好ましい。これら白色顔料は、単独あるいは２種以上組み合わせて使用してもよい。また、白色顔料の添加量は、樹脂１００重量部に対し、０．００１〜５．０重量部であり、好ましくは０．０１〜２．０重量部である。また、後述するLEDは紫外線も放出するため、光透過部１１の内側などに耐紫外線用の樹脂層をコーティングするようにしても良い。   Examples of white pigments added to the resin material to make a milk color resin include inorganic pigments such as titanium oxide, barium oxide, talc, barium sulfate, aluminum hydroxide, silica, mica, calcium carbonate, calcium sulfate, and clay. And organic pigments such as polymer beads. Among these, barium sulfate, calcium carbonate, and titanium oxide are preferable. These white pigments may be used alone or in combination of two or more. Moreover, the addition amount of a white pigment is 0.001-5.0 weight part with respect to 100 weight part of resin, Preferably it is 0.01-2.0 weight part. Further, since an LED described later also emits ultraviolet rays, a resin layer for ultraviolet rays may be coated on the inside of the light transmission portion 11 or the like.

また、樹脂材料に対しては蛍光増白剤を混ぜることも可能であり、このような蛍光増白剤としては、ハッコール（昭和化学（株）製、商品名）、ユビテックス（チバガイギイ社製、商品名）、ホスタルクス（ＢＡＳＦ社製、商品名）、イルミナール（昭和化工（株）製、商品名）等が挙げられ、その添加量は樹脂１００重量部に対し、５×１０-5〜０．１重量部、好ましくは５×１０-4〜０．０５重量部である。さらに樹脂材料には、耐光性を向上させるために耐光安定剤としてヒンダートアミン等を添加することもできる。ヒンダートアミン系安定剤としては、サノールＬＳ７７０、サノールＬＳ７６５（三共（株）製、商品名）、アデカスタブＬＡ−７７、アデカスタブＬＡ−５７（旭電化（株）製、商品名）等が挙げられ、添加量としては樹脂１００重量部に対し０．０１〜１．０重量部、好ましくは０．０５〜０．５重量部である。 In addition, it is possible to mix fluorescent whitening agents with resin materials. Examples of such fluorescent whitening agents include Hackol (manufactured by Showa Chemical Co., Ltd., trade name), Ubitex (manufactured by Ciba-Gaigyi, Product name), Hostalcus (manufactured by BASF, product name), Illuminal (manufactured by Showa Kako Co., Ltd., product name), and the like. The amount of addition is 5 × 10 −5 to 0. 1 part by weight, preferably 5 × 10 −4 to 0.05 part by weight. Furthermore, a hindered amine or the like can be added to the resin material as a light resistance stabilizer in order to improve the light resistance. Examples of the hindered amine stabilizer include Sanol LS770, Sanol LS765 (Sankyo Co., Ltd., trade name), Adeka Stub LA-77, Adeka Stub LA-57 (Asahi Denka Co., Ltd., trade name), and the like. The addition amount is 0.01 to 1.0 part by weight, preferably 0.05 to 0.5 part by weight, based on 100 parts by weight of the resin.

光透過部１１は約円筒状のアクリル系樹脂材からなるが、図３に断面図として示すように、底面側にはベース部１４に係合し該ベース部１４を収納するための切欠きがあり、断面の上側には内側光透過部１３と外周部１２の内面１２ｉとの間の空隙からなる中空部２４が設けられている。外周部１２はやや肉厚で円筒状のアクリル系樹脂材の外周面１１ｓを形成する部分であり、外周面１１ｓはベース部１４の底面１４ｓと共に蛍光灯の規格に沿った円周面とされる。また、中空部２４を挟んで外周部１２に対向する内側光透過部１３は、やや肉厚の薄い光透過用の部分とされ、図中上側に凸とされる射出面１３ｊと同じく上側に凸とされた入射面１３ｉに挟まれた領域であり、このような形状からチップ型LED１８より出力された光を屈折させることができ、射出面１３ｊと入射面１３ｉに挟まれた領域が所望のレンズとして機能する。   The light transmitting portion 11 is made of an approximately cylindrical acrylic resin material. As shown in a sectional view in FIG. 3, the bottom surface side has a notch for engaging the base portion 14 and storing the base portion 14. There is a hollow portion 24 formed of a gap between the inner light transmitting portion 13 and the inner surface 12i of the outer peripheral portion 12 on the upper side of the cross section. The outer peripheral portion 12 is a portion forming the outer peripheral surface 11s of a slightly thick and cylindrical acrylic resin material, and the outer peripheral surface 11s is a peripheral surface in accordance with the standard of the fluorescent lamp together with the bottom surface 14s of the base portion 14. . Further, the inner light transmission portion 13 that faces the outer peripheral portion 12 with the hollow portion 24 interposed therebetween is a slightly thin portion for light transmission, and protrudes upward in the same manner as the emission surface 13j that protrudes upward in the drawing. It is a region sandwiched between the incident surface 13i, and the light output from the chip-type LED 18 can be refracted from such a shape, and the region sandwiched between the exit surface 13j and the incident surface 13i is a desired lens. Function as.

中空部２４はやや潰れた三日月状の断面を有しており、光透過部１１の長手方向に沿って直線状に延長される空洞部である。特に中空部２４の断面上の端部２３は、角丸形状とされ、鋭角な角度を以って外周部１２と内側光透過部１３が交わるようには構成されていない。このように中空部２４の断面上の端部２３を角丸形状とすることで、その角部２３の近傍に光線が集中して外周部１２の外側に射出される光がばらつくような弊害を防止することができ、均一な拡散によってより蛍光灯に近い光源として発光させることができる。さらに、中空部２４の端部２３をこのような角丸形状とすることで、光透過部１１を形成する樹脂材料の押し出し加工のための金型も鋭角な角度を持たなくなり、長寿命化させることができ、押し出し時の成型精度も良くなるために、光透過部品の製造時の歩留まりを向上させることができる。このような中空部２４を設けることで、中空としない場合に比較して、当該光発生装置の重量を減らすことができる。   The hollow portion 24 has a crumbled crescent-shaped cross section, and is a hollow portion that extends linearly along the longitudinal direction of the light transmitting portion 11. In particular, the end portion 23 on the cross section of the hollow portion 24 has a rounded round shape, and is not configured such that the outer peripheral portion 12 and the inner light transmitting portion 13 intersect with an acute angle. Thus, by making the end portion 23 on the cross section of the hollow portion 24 rounded, the light beam is concentrated in the vicinity of the corner portion 23 and the light emitted to the outside of the outer peripheral portion 12 varies. The light can be emitted as a light source closer to a fluorescent lamp by uniform diffusion. Further, by forming the end portion 23 of the hollow portion 24 in such a rounded shape, the mold for extruding the resin material forming the light transmitting portion 11 does not have an acute angle, thereby extending the life. In addition, since the molding accuracy at the time of extrusion is improved, the yield at the time of manufacturing the light transmitting component can be improved. By providing such a hollow portion 24, the weight of the light generating device can be reduced as compared with a case where the hollow portion 24 is not hollow.

光透過部１１のベース部１４と係合する部分は、断面階段状とされた係合部２５が形成されており、この係合部２５はベース部１４の係合凹部１５に嵌り込むように係合する。図４は係合部２５と係合凹部１５の係合を解除した状態を示す図であり、光透過部１１がベース部１４に対して分離したところを示している。図４に示すように光透過部１１とベース部１４が分離した状態から、図３に示すような光透過部１１とベース部１４が係合した状態にするためには、ベース部１４に対して光透過部１１を押し当てていくことで、樹脂性の光透過部１１の一対の係合部２５、２５の間の間隔が、ベース部１４の外側面に沿って弾性変形して拡張し、いわゆるスナップインにより、係合部２５はベース部１４の係合凹部１５に嵌り込むように係合する。また、このような樹脂の弾性変形に拠らず、光透過部１１の開口した端部から係合部２５とベース部１４の係合凹部１５とを合わせ、そこから長手方向に光透過部１１若しくはベース部１４をスライドさせて図３に示すような光透過部１１とベース部１４が係合した状態にしても良い。   A portion engaging with the base portion 14 of the light transmitting portion 11 is formed with an engaging portion 25 having a stepped cross section. The engaging portion 25 is fitted into the engaging recess 15 of the base portion 14. Engage. FIG. 4 is a view showing a state in which the engagement portion 25 and the engagement recess 15 are disengaged, and shows the light transmission portion 11 separated from the base portion 14. In order to change the state where the light transmitting portion 11 and the base portion 14 are separated as shown in FIG. 4 to the state where the light transmitting portion 11 and the base portion 14 are engaged as shown in FIG. By pressing the light transmitting portion 11, the distance between the pair of engaging portions 25, 25 of the resinous light transmitting portion 11 is elastically deformed and expanded along the outer surface of the base portion 14. The engaging portion 25 engages with the engaging recess 15 of the base portion 14 by so-called snap-in. Further, the engaging portion 25 and the engaging concave portion 15 of the base portion 14 are aligned from the opened end portion of the light transmitting portion 11 without depending on such elastic deformation of the resin, and the light transmitting portion 11 extends in the longitudinal direction therefrom. Alternatively, the base portion 14 may be slid to engage the light transmitting portion 11 and the base portion 14 as shown in FIG.

次にベース部１４は、アルミニウムなどの軽金属材で例えば押し出し加工等により構成された部材であり、断面は肉厚が厚く角ばった逆Ω状の形状を有している。ベース部１４の側部には、当該ベース部１４の延長方向に沿って該ベース部１４の係合凹部１５が設けられており、この係合凹部１５が光透過部１１の係合部２５に長手方向に沿って係合することで光透過部１１とベース部１４が合体する。ベース部１４のほぼ中央部には、凹部が形成される。このベース部１４の凹部には、複数のチップ型ＬＥＤ１８が実装された回路基板１７が挿入される。ベース部１４と光透過部１１が合体した際には、ベース部１４の外周部は、先に説明した光透過部１１の外周部１１ｓと連続した周面を構成し、この周面が直管蛍光灯の規格に合った外形を構成する。例えば直管蛍光灯の４形〜１１０形、他の実施形態としてベース部や光透過部の延長方向を円状とした場合の丸形蛍光灯の９形〜４０形などの種々の規格に沿った形状とすることで、既存の照明器具に特に変更なく取り付けることも可能である。なお、本実施形態においては、ベース部１４はアルミニウムなどの軽金属材により製造されるが、ベース部１４を樹脂材により構成しても良く、その樹脂材によってＬＥＤ１８からの光が透過されるようにも構成できる。   Next, the base portion 14 is a member made of a light metal material such as aluminum by, for example, extrusion processing or the like, and the cross section has a thick and square inverted Ω shape. An engaging recess 15 of the base portion 14 is provided on the side portion of the base portion 14 along the extending direction of the base portion 14, and the engaging recess 15 is formed in the engaging portion 25 of the light transmitting portion 11. The light transmission part 11 and the base part 14 unite | combine by engaging along a longitudinal direction. A concave portion is formed in a substantially central portion of the base portion 14. A circuit board 17 on which a plurality of chip LEDs 18 are mounted is inserted into the recess of the base portion 14. When the base portion 14 and the light transmitting portion 11 are combined, the outer peripheral portion of the base portion 14 forms a peripheral surface continuous with the outer peripheral portion 11s of the light transmitting portion 11 described above, and this peripheral surface is a straight pipe. Constructs an external shape that meets fluorescent lamp standards. For example, in conformity with various standards such as 4 to 110 types of straight tube fluorescent lamps, and 9 to 40 types of round fluorescent lamps when the extending direction of the base part and the light transmitting part is circular as another embodiment. By adopting the shape, it is possible to attach to existing lighting fixtures without any particular change. In this embodiment, the base portion 14 is manufactured from a light metal material such as aluminum. However, the base portion 14 may be formed from a resin material so that light from the LED 18 is transmitted by the resin material. Can also be configured.

図５は回路基板１７の斜視図である。回路基板１７はエポキシ、フェノールその他の樹脂材を用いた部品実装用の帯状の板材であり、回路基板１７の表面側でその長手方向に所定間隔で複数のチップ型ＬＥＤ１８が実装されている。チップ型ＬＥＤ１８は高輝度で照射角が１００〜１４０度程度の広角度の発光ダイオードを用いることができる。また、回路基板１７の表面側には、チップ型の他の電子部品２６、例えば抵抗素子若しくは定電流ダイオードなどが同様に実装されている。回路基板１７の裏面側若しくは基板の内部には、電源線や接地線などの所要の配線が形成され、その配線を介して各チップ型ＬＥＤ１８には給電される。回路基板１７は、図示しない透孔を介して、螺子などによってベース部１４に取り付けられるが、ベース部１４の凹部側壁に一対の突条部を形成し、それら突条部の間にスライドさせて回路基板１７を挿入して固定するようにしても良い。   FIG. 5 is a perspective view of the circuit board 17. The circuit board 17 is a band-shaped plate material for component mounting using epoxy, phenol or other resin material, and a plurality of chip-type LEDs 18 are mounted on the surface side of the circuit board 17 at predetermined intervals in the longitudinal direction. The chip-type LED 18 can be a light-emitting diode having a high brightness and a wide angle with an irradiation angle of about 100 to 140 degrees. Further, on the surface side of the circuit board 17, another chip-type electronic component 26, such as a resistance element or a constant current diode, is similarly mounted. Necessary wirings such as a power supply line and a grounding line are formed on the back side of the circuit board 17 or inside the board, and power is supplied to each chip-type LED 18 through the wirings. The circuit board 17 is attached to the base portion 14 by a screw or the like through a through hole (not shown). A pair of ridge portions are formed on the side wall of the concave portion of the base portion 14 and are slid between the ridge portions. The circuit board 17 may be inserted and fixed.

図６はＬＥＤ１８から射出された光の光路を示す図であり、光透過部１１は乳半色のアクリル系樹脂であることから実際は樹脂部分を通過する際に光の拡散が発生しており、透明な光学部材を光が通過するようには光が透過するものではなく、図中、光路ｒ０〜ｒ２はそれぞれ拡散により広がる光の中心を模式的に示している。図６に示すように、光透過部１１の中心部を通過する光は光路ｒ０で示すように、ほぼ直線状に当該光発生装置１０の外部に導かれる。ＬＥＤ１８の発光部１８eから斜めに射出された光のうち、光路ｒ１では内側光透過部１３のレンズ機能により内側光透過部１３の入射面１３ｉと射出面１３ｊでそれぞれ屈曲し、拡散しながら外部に射出する。また、光路ｒ２は、中空部２４の角丸形状の端部２３の外側を通過する光を示している。仮に、中空部２４の端部２３が角丸形状でなく内側光透過部１３の射出面１３ｊと外周部１２の内面１２ｉとがなす角が鋭角とされる場合では、射出面１３ｊと内面１２ｉの間で光の反射が繰り返して発生し、角部での拡散が強調されてそれを外部から見た場合には光の筋になってしまう現象が発生してしまうことになるが、中空部２４の端部２３を角丸形状とすることで、そのような光の筋の発生を未然に防止することができ、当該光発生装置１０は均一な光を出力できることになる。 FIG. 6 is a diagram showing an optical path of light emitted from the LED 18, and since the light transmission part 11 is a milky-colored acrylic resin, light diffusion occurs when actually passing through the resin part. The light is not transmitted so that the light passes through the transparent optical member. In the drawing, the optical paths r 0 to r 2 schematically show the centers of the light spread by diffusion. As shown in FIG. 6, the light passing through the center of the light transmission portion 11 as indicated by the optical path r 0, it is guided to the outside of the light generator 10 substantially linearly. Of the light from the light emitting portion 18e emitted obliquely of LED 18, bent respectively at the exit surface 13j and the incident surface 13i of the inner light transmitting unit 13 by the lens function of the optical path r 1 in the inner light transmitting section 13, the external while diffusing To ejaculate. An optical path r 2 indicates light that passes outside the rounded end portion 23 of the hollow portion 24. If the end portion 23 of the hollow portion 24 is not rounded and the angle formed by the exit surface 13j of the inner light transmission portion 13 and the inner surface 12i of the outer peripheral portion 12 is an acute angle, the exit surface 13j and the inner surface 12i Light is repeatedly reflected between them, and diffusion at the corners is emphasized, and when it is viewed from the outside, a phenomenon of becoming a light streak occurs. By forming the end portion 23 of a rounded corner, generation of such light streaks can be prevented in advance, and the light generation device 10 can output uniform light.

以上のような構成を有する本実施形態の光発生装置１０は、図２に示すように、直管形状の蛍光灯規格に準じた形状を有し、既存の一対のソケット２１、２１の電極部２２に、当該光発生装置１０の両端部に配設された口金部１９のピン２０が電気的接続され、ソケット２１、２１側からの給電が行われるように構成されている。本実施形態の光発生装置１０は図２に示すような直管形状のものにもその外形を合わせることができ、さらに図７に示すように、円形蛍光灯にもその外形を合わせることができる。図７に示すように、リング状に延長されている光透過部３３の一部に接続部３１が設けられ、該接続部３１には蛍光灯のソケットに接続して給電を受けるためのピン３２が設けられている。このピン３２に所定のソケットを接続しながら、既存の蛍光灯装置に装着することで、ＬＥＤからの光を出力する装置として機能することになる。   As shown in FIG. 2, the light generation device 10 of the present embodiment having the above-described configuration has a shape conforming to a straight tube fluorescent lamp standard, and the electrode portions of the existing pair of sockets 21 and 21. 22, the pins 20 of the base part 19 disposed at both ends of the light generation device 10 are electrically connected, and power is supplied from the sockets 21 and 21 side. The light generating device 10 of the present embodiment can be adapted to a straight tube shape as shown in FIG. 2, and can also be adapted to a circular fluorescent lamp as shown in FIG. . As shown in FIG. 7, a connection part 31 is provided in a part of the light transmission part 33 extended in a ring shape, and the connection part 31 is connected to a socket of a fluorescent lamp to receive power. Is provided. By attaching a predetermined socket to this pin 32 and attaching it to an existing fluorescent lamp device, it functions as a device that outputs light from the LED.

図８は他の実施形態となる光発生装置の断面図である。本実施形態の光発生装置は、角柱状の光透過部４１の図中下部側にはアルミニウムで構成されたベース部４９が係合するように構成されており、そのベース部４９の内側にはチップ型LED５２が複数個実装された回路基板５０が挿入されるように構成されている。   FIG. 8 is a cross-sectional view of a light generator according to another embodiment. The light generation device according to the present embodiment is configured such that a base portion 49 made of aluminum is engaged with a lower side of the prismatic light transmission portion 41 in the drawing, and an inner side of the base portion 49 A circuit board 50 on which a plurality of chip-type LEDs 52 are mounted is inserted.

本実施形態の光発生装置の光透過部４１は角柱形状であり、その外周面４１は角部４１ｃを有した形状となっている。光透過部４１の内部には角丸形状の端部４６を有した中空部４２が外周部５４の内面４３と内側光透過部４４の射出面４５に挟まれるように形成されている。光透過部４１の底部側は、断面凹状のベース部４９の側端部が嵌合する凹部５３が形成されており、光透過部４１の底部４８はベース部４９の裏面側にやや回りこむように延長されている。光透過部４１の内側光透過部４４は、レンズとしても機能する部材であり、図中上側に凸とされる射出面４５と同じく上側に凸とされた入射面４７に挟まれた領域とされる。   The light transmission part 41 of the light generation device of the present embodiment has a prismatic shape, and the outer peripheral surface 41 has a shape having a corner part 41c. A hollow portion 42 having a rounded end 46 is formed inside the light transmitting portion 41 so as to be sandwiched between an inner surface 43 of the outer peripheral portion 54 and an emission surface 45 of the inner light transmitting portion 44. On the bottom side of the light transmission part 41, a recess 53 is formed in which the side end of the base part 49 having a concave cross section is fitted, and the bottom part 48 of the light transmission part 41 slightly turns around the back side of the base part 49. It has been extended. The inner light transmitting portion 44 of the light transmitting portion 41 is a member that also functions as a lens, and is a region sandwiched by an incident surface 47 that is convex upward as in the emission surface 45 that is convex upward in the drawing. The

断面凹状のベース部４９には、複数のＬＥＤ５１がその発光部５２を上側にするように配列された且つ帯状に延長された回路基板５０が実装されており、ＬＥＤ５１の発光部５２で発光した光が、入射面４７と射出面４５に挟まれた内側光透過部４４や外周部５４を通過して外部に出力される。このとき中空部４２の端部４６では、端部４６が角丸形状であることから該端部４６に光が集中するような不都合がなく、均一な光の拡散が実現されることになる。また、本実施形態の光発生装置は、図８に示すように、光透過部４１の形状が断面矩形状となるような、特に一般の蛍光灯の規格を外れるような形状であっても問題なく作動する光発生装置となる。これは光を発生させるＬＥＤ５１には、蛍光灯のようにガスを封入した管形状とする必要がないことも手伝っており、比較的に自由な設計で光発生装置を構成することができ、看板や芸術作品などへの応用にも好適である。   A circuit board 50 in which a plurality of LEDs 51 are arranged so that the light emitting portions 52 are disposed on the upper side and is extended in a strip shape is mounted on the base portion 49 having a concave cross section, and light emitted from the light emitting portions 52 of the LEDs 51 However, the light passes through the inner light transmitting portion 44 and the outer peripheral portion 54 sandwiched between the incident surface 47 and the exit surface 45 and is output to the outside. At this time, in the end portion 46 of the hollow portion 42, the end portion 46 has a rounded round shape, so that there is no inconvenience that light is concentrated on the end portion 46, and uniform light diffusion is realized. Further, as shown in FIG. 8, the light generation device of the present embodiment has a problem even if the shape of the light transmission portion 41 is a rectangular cross section, particularly a shape that deviates from the standard of a general fluorescent lamp. It becomes a light generating device that works without any problems. This is because the LED 51 that generates light does not need to have a tube shape in which gas is sealed unlike a fluorescent lamp, and a light generator can be configured with a relatively free design. It is also suitable for application to art works.

図９はさらに他の実施形態の光発生装置の口金付近の構成を示す図である。図９に示すように、光透過部７０の内側には内側光透過部６８が設けられており、内側光透過部６８の上側には図示しない端部を角丸形状とした中空部６９が設けられている。内側光透過部６８の底部側には、アルミニウムの如き軽金属材で構成されたベース部６１が取り付けられており、そのベース部６１に取り付けられるように複数のＬＥＤ６３を並べて配置した回路基板６２が実装されている。   FIG. 9 is a diagram showing a configuration in the vicinity of a base of a light generating device of still another embodiment. As shown in FIG. 9, an inner light transmitting portion 68 is provided inside the light transmitting portion 70, and a hollow portion 69 whose end portion (not shown) is rounded is provided above the inner light transmitting portion 68. It has been. A base portion 61 made of a light metal material such as aluminum is attached to the bottom side of the inner light transmission portion 68, and a circuit board 62 in which a plurality of LEDs 63 are arranged side by side so as to be attached to the base portion 61 is mounted. Has been.

これらベース部６１と光透過部７０の端部には、口金部７１が形成されており、この口金部７１の軸方向端部から垂直にピン６６が突出して形成されている。この口金部７１の内側６４には、外部ソケットの電極に接するピン６６から供給される蛍光灯用の電流を本実施形態のＬＥＤ６３用に変換する電源変換回路部６５が設けられている。このように口金部７１の内側に電源変換回路部６５を形成することで、口金部以外の管状部分で発光する規格に準じた蛍光灯と同等の発光面積を確保することができ、更に蛍光灯との互換性が得られるために、市場価値を高めることができる。   A base part 71 is formed at the ends of the base part 61 and the light transmission part 70, and a pin 66 is formed so as to protrude perpendicularly from the axial end part of the base part 71. On the inner side 64 of the base part 71, a power conversion circuit part 65 for converting the current for the fluorescent lamp supplied from the pin 66 in contact with the electrode of the external socket into the LED 63 of the present embodiment is provided. By forming the power conversion circuit portion 65 inside the base portion 71 in this way, it is possible to secure a light emitting area equivalent to a fluorescent lamp conforming to the standard for emitting light in a tubular portion other than the base portion, and further fluorescent lamp The market value can be increased because the compatibility with is obtained.

また、このような本実施形態の光発生装置においては、口金部７１の周面にスライドスイッチ６７を設け、このスライドスイッチ６７の操作によって電源変換回路部６５から出力される電流値の大小、あるいは電流のパルス数やパルス幅を制御し、大きな電流値でＬＥＤ６３を駆動する場合の通常モードと、通常モード時よりは小さな電流値でＬＥＤ６３を制御するための節電モードとを切り替えて操作する。このようなモード切替スイッチを口金部７１に設けることで、配線の引き回しなどが不要で当該実施形態の光発生装置の電力コントロールが実現可能であり、スイッチを光透過部に形成することで生じる光量低下などの問題も生じない。   Further, in such a light generating device of the present embodiment, a slide switch 67 is provided on the peripheral surface of the base portion 71, and the magnitude of the current value output from the power conversion circuit portion 65 by the operation of the slide switch 67, or The number of pulses and the pulse width of the current are controlled to switch between a normal mode when driving the LED 63 with a large current value and a power saving mode for controlling the LED 63 with a smaller current value than in the normal mode. By providing such a mode switching switch in the base 71, it is possible to control the power of the light generating device of the embodiment without the need for wiring and the like, and the amount of light generated by forming the switch in the light transmitting portion There is no problem such as degradation.

なお、上述の実施形態においては、発光素子の例としてＬＥＤ（発光ダイオード）を例示したが、有機ＥＬ発光素子、半導体レーザー、その他の発光素子などを用いることも可能であり、また、発光色も白色に限定されず、ＲＧＢの組み合わせや、他の任意の波長の光を組み合わせるようにすることも可能である。   In the above-described embodiment, an LED (light emitting diode) is illustrated as an example of the light emitting element. However, an organic EL light emitting element, a semiconductor laser, other light emitting elements, and the like can also be used, and the emission color is also different. It is not limited to white, but it is also possible to combine RGB or light of any other wavelength.

本発明の光発生装置の一実施形態を一部破断して示す斜視図である。It is a perspective view which shows one embodiment of the light generator of the present invention partially broken. 本発明の光発生装置の一実施形態を蛍光灯のソケットのはめ込むところを模式的に示した斜視図である。It is the perspective view which showed typically the place which fits in the socket of a fluorescent lamp in one Embodiment of the light generator of this invention. 本発明の光発生装置の一実施形態の要部断面図である。It is principal part sectional drawing of one Embodiment of the light generator of this invention. 本発明の光発生装置の一実施形態の要部断面図であって、光透過部をベース部から離した状態を示す図である。It is principal part sectional drawing of one Embodiment of the light generator of this invention, Comprising: It is a figure which shows the state which separated the light transmissive part from the base part. 本発明の光発生装置の一実施形態に用いられる回路基板を破断して示す斜視図である。It is a perspective view which fractures | ruptures and shows the circuit board used for one Embodiment of the light generator of this invention. 本発明の光発生装置の一実施形態の要部断面図であって、ＬＥＤからの光の光路を模式的に示した図である。It is principal part sectional drawing of one Embodiment of the light generator of this invention, Comprising: It is the figure which showed typically the optical path of the light from LED. 本発明の光発生装置の他の実施形態の平面図である。It is a top view of other embodiments of a light generator of the present invention. 本発明の光発生装置の更に他の実施形態の要部断面図である。It is principal part sectional drawing of further another embodiment of the light generator of this invention. 本発明の光発生装置のまた更に他の実施形態の要部断面図である。It is principal part sectional drawing of further another embodiment of the light generator of this invention.

符号の説明Explanation of symbols

１０ 光発生装置
１１ 光透過部
１２ 外周部
１３ 内側光透過部
１４ ベース部
１５ 係合凹部
１７ 回路基板
１８ ＬＥＤ
１９ 口金部
２０ ピン
２１ ソケット
２２ 電極部
２３ 端部
２４ 中空部
３１ 口金部
３２ ピン
３３ 光透過部
４１ 光透過部
４２ 中空部
４４ 内側光透過部
４６ 端部
４８ 底部
４９ ベース部
５０ 回路基板
５１ ＬＥＤ
５３ 凹部
６１ ベース部
６２ 回路基板
６３ ＬＥＤ
６５ 電源変換回路部
６６ ピン
６７ スライドスイッチ
６８ 内側光透過部
６９ 中空部
７０ 外周部
７１ 口金部 DESCRIPTION OF SYMBOLS 10 Light generator 11 Light transmissive part 12 Outer peripheral part 13 Inner light transmissive part 14 Base part 15 Engaging recessed part 17 Circuit board 18 LED
19 Base part 20 Pin 21 Socket 22 Electrode part 23 End part 24 Hollow part 31 Base part 32 Pin 33 Light transmission part 41 Light transmission part 42 Hollow part 44 Inner light transmission part 46 End part 48 Bottom part 49 Base part 50 Circuit board 51 LED
53 Recess 61 Base 62 Circuit board 63 LED
65 Power conversion circuit part 66 Pin 67 Slide switch 68 Inner light transmission part 69 Hollow part 70 Outer part 71 Base part

Claims (10)

複数の発光素子が並べて配置された回路基板部と、
所定の形状に延長され前記回路基板部を実装するベース部と、
前記ベース部の延長方向に沿って該ベース部の側端部にそれぞれ係合する係合部を有してなり該係合部の間の管状外周面より前記発光素子からの光を射出する光透過部とを有し、
前記光透過部には前記発光素子に対応して前記発光素子から離間して該発光素子を覆う内側光透過部と、内側光透過部の外側に設けられた外周部とが設けられ、前記内側光透過部と前記外周部の間の空隙からなる中空部の端部は断面角丸形状とされていることを特徴とする光発生装置。 A circuit board portion in which a plurality of light emitting elements are arranged,
A base part that is extended to a predetermined shape and mounts the circuit board part;
Light that has engaging portions that respectively engage with side end portions of the base portion along the extending direction of the base portion, and emits light from the light emitting element from a tubular outer peripheral surface between the engaging portions. A transmission part,
The light transmitting portion is provided with an inner light transmitting portion that covers the light emitting element and is spaced apart from the light emitting element corresponding to the light emitting element, and an outer peripheral portion provided outside the inner light transmitting portion. An end portion of a hollow portion formed by a gap between the light transmission portion and the outer peripheral portion has a rounded cross section. 前記ベース部に係合部を介して前記光透過部を係合した場合、前記ベース部と前記光透過部の外周同士は連続する外周部を形成することを特徴とする請求項１記載の光発生装置。 2. The light according to claim 1, wherein when the light transmission portion is engaged with the base portion via an engagement portion, the outer periphery of the base portion and the light transmission portion forms a continuous outer periphery. Generator. 前記ベース部と前記光透過部で構成される連続する外周部は、蛍光灯規格の形状に応じた形状を有していることを特徴とする請求項２記載の光発生装置。 The light generating device according to claim 2, wherein a continuous outer peripheral portion configured by the base portion and the light transmitting portion has a shape corresponding to a shape of a fluorescent lamp standard. 前記ベース部の側端部に係合する前記光透過部の係合部は、当該係合部同士の間隔が拡張した後に収縮して前記ベース部の側端部に係合することを特徴とする請求項２記載の光発生装置。 The engaging portion of the light transmitting portion that engages with the side end portion of the base portion contracts after the interval between the engaging portions expands to engage with the side end portion of the base portion. The light generator according to claim 2. 前記ベース部と前記光透過部は蛍光灯規格に対応して口金部に取り付けられ、前記回路基板部は前記口金部からの給電により、各発光素子を発光するように動作させることを特徴とする請求項１記載の光発生装置。 The base part and the light transmission part are attached to a base part corresponding to a fluorescent lamp standard, and the circuit board part is operated to emit light from each light-emitting element by power feeding from the base part. The light generator according to claim 1. 前記口金部の内部に前記発光素子を駆動するための発光素子駆動回路部が配設されていることを特徴とする請求項５記載の光発光装置。 The light emitting device according to claim 5, wherein a light emitting element driving circuit unit for driving the light emitting element is disposed inside the base part. 前記発光素子駆動回路部は前記口金部に設けられたスイッチにより、通常モードと節電モードの切り替えが可能であることを特徴とする請求項６記載の光発光装置。 The light emitting device according to claim 6, wherein the light emitting element driving circuit unit can be switched between a normal mode and a power saving mode by a switch provided in the base unit. 前記光透過部は乳半のアクリル系樹脂材料からなることを特徴とする請求項１記載の光発生装置。 The light generating device according to claim 1, wherein the light transmitting portion is made of an acrylic resin material for a half milk. 前記ベース部は軽金属材、乳半のアクリル系樹脂材、これらの複合材からなることを特徴とする請求項８記載の光発生装置。 9. The light generator according to claim 8, wherein the base portion is made of a light metal material, a half-half acrylic resin material, or a composite material thereof. 前記発光素子は所謂チップ型LEDであり、該チップ型LEDは前記回路基板部上に所定間隔で配置されていることを特徴とする請求項１記載の光発生装置。 2. The light generating device according to claim 1, wherein the light emitting element is a so-called chip type LED, and the chip type LED is arranged on the circuit board portion at a predetermined interval.
JP2007331873A 2007-12-25 2007-12-25 Light generating device Pending JP2009158533A (en)

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