JP6710235B2 - Lighting equipment - Google Patents

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JP6710235B2
JP6710235B2 JP2018085090A JP2018085090A JP6710235B2 JP 6710235 B2 JP6710235 B2 JP 6710235B2 JP 2018085090 A JP2018085090 A JP 2018085090A JP 2018085090 A JP2018085090 A JP 2018085090A JP 6710235 B2 JP6710235 B2 JP 6710235B2
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light source
cover
illumination lamp
light
emission
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JP2018113273A (en
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恒人 西岡
恒人 西岡
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Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
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Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、照明ランプを用いた照明装置に関するものである。 The present invention relates to a lighting device using a lighting lamp.

近年、環境配慮の社会的要請を受け、従来の白熱電球や蛍光灯に比べて長寿命であり低消費電力の固体発光素子の１つである発光ダイオード（Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ；以下ＬＥＤと称す。）を光源として用いた照明ランプ及び照明装置の普及が拡大している。 In recent years, in response to social demands for environmental consideration, a light emitting diode (Light Emitting Diode; hereinafter referred to as an LED), which is one of solid-state light emitting devices having a longer life and lower power consumption than conventional incandescent light bulbs and fluorescent lights. The spread of lighting lamps and lighting devices that use a light source as a light source is expanding.

ＬＥＤを用いた照明ランプとして、例えば特許文献１のように、ＬＥＤを用いた発光部と、発光部が配設される配設面が設けられたヒートシンク（特許文献１の伝熱部材が該当）と、透光性を有する樹脂材料から形成され発光部とヒートシンクを収納する長尺のカバーと、カバーの長手方向における両端部に取り付けされた一対の口金とを有するものがあった。また、特許文献１の照明ランプは、カバーが円筒状に形成され、その周壁には一対の保持突起部（特許文献１の第１リブが該当）が突設され、保持突起部がヒートシンクの配設面に当接した状態で、ヒートシンクはカバーの内部に固定される。 As an illumination lamp using LEDs, for example, as in Patent Document 1, a heat sink provided with a light emitting unit using LEDs and a mounting surface on which the light emitting unit is mounted (corresponds to the heat transfer member of Patent Document 1). And a pair of caps attached to both ends in the longitudinal direction of the cover, and a long cover formed of a translucent resin material for accommodating the light emitting part and the heat sink. Further, in the illumination lamp of Patent Document 1, a cover is formed in a cylindrical shape, and a pair of holding protrusions (corresponding to the first ribs of Patent Document 1) are provided on a peripheral wall of the cover so that the holding protrusions serve as heat sinks. The heat sink is fixed inside the cover while being in contact with the installation surface.

特許第５３４７０８５号公報Japanese Patent No. 5347085

特許文献１のカバーは透光性を有する樹脂材料から形成されており、ＬＥＤから出射された光の一部は、カバーによってヒートシンク又は保持突起部側に向かって反射する。このように反射した光の多くは、ヒートシンク又は保持突起部によって吸収されてしまい、吸収された光は照明ランプの内部に留まるため照明空間を照射する照射光として利用することができなかった。つまり、特許文献１の発明は照明ランプの発光効率において、改善の余地を残していた。 The cover of Patent Document 1 is formed of a translucent resin material, and a part of the light emitted from the LED is reflected by the cover toward the heat sink or the holding protrusion. Most of the light reflected in this way is absorbed by the heat sink or the holding protrusion, and the absorbed light remains inside the illumination lamp and cannot be used as irradiation light for illuminating the illumination space. That is, the invention of Patent Document 1 leaves room for improvement in the luminous efficiency of the illumination lamp.

本発明は、上記の課題を鑑みてなされたものであり、光源から出射された光を高効率に照明ランプの照射光として利用することによって光利用効率を向上させた照明装置を提供することである。 The present invention has been made in view of the above problems, and provides a lighting device with improved light utilization efficiency by using light emitted from a light source as irradiation light of a lighting lamp with high efficiency. is there.

本発明の照明ランプは、長尺形状であり、長手方向に対して平行な面に光源が配置された光源モジュールと、光源モジュールの表面のうち光源の光が出射される出射側の表面を覆う長尺の透光部と、透光部の内側に向かって突出し、出射側の面が透光部よりも反射率が高く、出射側の面と反対側の面が光源モジュールと当接する保持突起部と、を有するカバーと、を備えたことを特徴としている。 The illumination lamp of the present invention has a long shape and covers a light source module in which a light source is arranged on a surface parallel to the longitudinal direction and a surface of the light source module on the emission side from which light of the light source is emitted. A long light-transmitting portion, and a holding protrusion protruding toward the inside of the light-transmitting portion, the emitting side surface having higher reflectance than the light-transmitting portion, and the surface opposite to the emitting side surface abutting the light source module. And a cover having a section.

また、本発明の照明ランプ用カバーは、長尺形状であり長手方向に対して平行な面に光源が設置された光源モジュールの表面のうち光源の光が出射される出射側の表面を覆う透光部と、透光部の内側に向かって突出し、出射側の面が透光部よりも反射率が高く、出射側の面と反対側の面が光源モジュールと当接する保持突起部と、を備えたことを特徴としている。 In addition, the illumination lamp cover of the present invention is a transparent cover that covers the surface of the light source module on the emission side of the surface of the light source module, which has a long shape and is parallel to the longitudinal direction. A light projecting portion, and a holding projection projecting inward of the light transmitting portion, a surface on the emitting side having a higher reflectance than the light transmitting portion, and a surface on the opposite side to the surface on the emitting side abutting the light source module. It is characterized by having.

本発明の照明装置は、長尺形状であり、長手方向に対して平行な面に光源が配置された光源モジュールと、透光性を有する樹脂である第１のカバー材料を用いて、光源モジュールの表面のうち光源の光が出射される出射側の表面を覆うように形成された長尺の透光部と、透光部と一体化されており、第１のカバー材料よりも反射率が高い材料が混合された樹脂である第２のカバー材料を用いて形成されており、光源が配置された面を基準とした出射側と反対側に先端が配置され、出射側の面と反対側の面が光源モジュールと対向するとともに先端に向かうほど厚みが薄くなるように出射側の面が反対側の面に対して傾斜している保持突起部と、を備え、反対側の面は、光源が配置された面を基準とした出射側と反対側において、光源モジュールの光源が配置された面に沿って、透光部の内周面から光源モジュールに向かって張り出すように形成されていると共に、光源モジュールの短手方向における光源モジュールの端部に当接して光源モジュールを保持するものである。 The lighting device of the present invention is a light source module having a long shape and a light source module in which a light source is arranged on a plane parallel to the longitudinal direction and a first cover material which is a translucent resin. The long translucent portion formed so as to cover the surface of the light emitting side on which the light of the light source is emitted is integrated with the translucent portion, and has a reflectance higher than that of the first cover material. It is formed by using a second cover material that is a resin in which high materials are mixed, and the tip is arranged on the side opposite to the emission side with respect to the surface on which the light source is arranged, and the side opposite to the emission side surface. A surface of the light emitting module faces the light source module, and a holding projection in which the surface on the emission side is inclined with respect to the surface on the opposite side so that the thickness becomes thinner toward the tip. in There emitting side and opposition side relative to the placed surface, along a plane light source is disposed in the light source module, are formed so as to protrude toward the light source module from the inner peripheral surface of the translucent portion The light source module is held by contacting the end portion of the light source module in the lateral direction of the light source module.

本発明の照明装置は、カバーの保持突起部の他方の面が透光部よりも反射率が高いため、光源モジュールから出射され透光部で保持突起部へ向かって反射された光は、保持突起部によって再び透光部へ反射され、光源から出射された光を効率的に利用でき、照明ランプの発光効率を向上させる効果を奏する。 In the lighting device of the present invention, since the other surface of the holding protrusion of the cover has a higher reflectance than the light transmitting portion, the light emitted from the light source module and reflected by the light transmitting portion toward the holding protrusion is retained. The light emitted from the light source, which is reflected by the projection portion to the light transmitting portion again, can be efficiently used, and the light emitting efficiency of the illumination lamp is improved.

本発明に係る照明装置の斜視図である。It is a perspective view of the illuminating device which concerns on this invention. 実施の形態１に係る照明ランプの斜視図である。FIG. 3 is a perspective view of the illumination lamp according to the first embodiment. 実施の形態１に係る照明ランプの図２のＡ−Ａ断面を示す断面図である。FIG. 3 is a cross-sectional view showing an AA cross section of FIG. 2 of the illumination lamp according to the first embodiment. 実施の形態１に係るカバーの一方の端部（矢印Ｘの基点側）からの斜視図で ある。FIG. 3 is a perspective view from one end portion (a base point side of arrow X) of the cover according to the first exemplary embodiment. 実施の形態１に係るカバーの他方の端部（矢印Ｘの先端側）からの斜視図で ある。FIG. 5 is a perspective view from the other end (the tip side of arrow X) of the cover according to the first embodiment. 実施の形態１に係るヒートシンクの一方の端部（矢印Ｘの基点側）からの斜 視図である。FIG. 3 is a perspective view from one end (on the side of the base point of arrow X) of the heat sink according to the first embodiment. 実施の形態１に係るヒートシンクの他方の端部（矢印Ｘの先端側）からの斜 視図である。FIG. 6 is a perspective view from the other end (the tip side of arrow X) of the heat sink according to the first embodiment. 実施の形態１に係る照明ランプの光の経路を示す断面図である。FIG. 3 is a cross-sectional view showing a light path of the illumination lamp according to the first embodiment. 実施の形態１の第１の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a first modified example of the first embodiment. 実施の形態１の第２の変形例に係る照明ランプの断面図である。FIG. 7 is a cross-sectional view of an illumination lamp according to a second modified example of the first embodiment. 実施の形態１の第３の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a third modified example of the first embodiment. 実施の形態１の第４の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a fourth modified example of the first embodiment. 実施の形態１の第５の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a fifth modified example of the first embodiment. 実施の形態１の第５の変形例に係るヒートシンクの一方の端部（矢印Ｘの 基点側）からの斜視図である。FIG. 9 is a perspective view from one end portion (on the side of the base point of arrow X) of the heat sink according to the fifth modified example of the first embodiment. 実施の形態１の第５の変形例に係るヒートシンクの他方の端部（矢印Ｘの 先端側）からの斜視図である。FIG. 13 is a perspective view from the other end (on the side of the tip of arrow X) of the heat sink according to the fifth modified example of the first embodiment. 実施の形態１の第６の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a sixth modified example of the first embodiment. 実施の形態１の第７の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a seventh modified example of the first embodiment. 実施の形態１の第８の変形例に係る照明ランプの断面図である。FIG. 11 is a cross-sectional view of an illumination lamp according to an eighth modification example of the first embodiment. 実施の形態１の第９の変形例に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a ninth modified example of the first embodiment. 実施の形態２に係る照明ランプの斜視図である。FIG. 6 is a perspective view of an illumination lamp according to a second embodiment. 実施の形態２に係る照明ランプの図２０のＢ−Ｂ断面を示す断面図である 。It is sectional drawing which shows the BB cross section of FIG. 20 of the illuminating lamp which concerns on Embodiment 2. 実施の形態２に係る照明ランプの側面図である。FIG. 6 is a side view of the illumination lamp according to the second embodiment. 実施の形態３に係る照明ランプの斜視図である。FIG. 7 is a perspective view of an illumination lamp according to a third embodiment. 実施の形態３に係る照明ランプの図２３のＣ−Ｃ断面を示す断面図である 。FIG. 24 is a cross-sectional view showing the CC cross section of FIG. 23 of the illumination lamp according to the third embodiment. 実施の形態３に係る照明ランプの側面図である。FIG. 9 is a side view of the illumination lamp according to the third embodiment. 実施の形態４に係る照明ランプの断面図である。FIG. 9 is a cross-sectional view of an illumination lamp according to a fourth embodiment. 実施の形態４に係る照明ランプの側面図である。FIG. 9 is a side view of the illumination lamp according to the fourth embodiment. 実施の形態４に係るカバーの一方の端部（矢印Ｘの基点側）からの斜視図 である。FIG. 16 is a perspective view from one end portion (base point side of arrow X) of the cover according to the fourth embodiment. 実施の形態４に係るカバーの他方の端部（矢印Ｘの先端側）からの斜視図 である。FIG. 16 is a perspective view from the other end (the tip side of arrow X) of the cover according to the fourth embodiment. 実施の形態４の第１の変形例に係る照明ランプの断面図である。FIG. 16 is a cross-sectional view of an illumination lamp according to a first modified example of the fourth embodiment. 実施の形態４の第２の変形例に係る照明ランプの断面図である。FIG. 19 is a cross-sectional view of an illumination lamp according to a second modified example of the fourth embodiment. 実施の形態４の第２の変形例に係るカバーの一方の端部（矢印Ｘの基点側 ）からの斜視図である。FIG. 16 is a perspective view from one end portion (base point side of arrow X) of the cover according to the second modified example of the fourth embodiment. 実施の形態４の第２の変形例に係るカバーの他方の端部（矢印Ｘの先端側 ）からの斜視図である。FIG. 28 is a perspective view from the other end (the tip side of arrow X) of the cover according to the second modification of the fourth embodiment. 実施の形態５に係る照明ランプの断面図である。It is sectional drawing of the illuminating lamp which concerns on Embodiment 5. 実施の形態６に係る照明ランプの断面図である。It is sectional drawing of the illuminating lamp which concerns on Embodiment 6.

以下、本発明の実施の形態について、図を用いて説明する。なお、各図中、同一又は相当する部分には、同一符号を付している。実施の形態の説明において、同一又は相当する部分については、その説明を適宜省略又は簡略化する。また、各図では矢印Ｘ、矢印Ｙ、矢印Ｚを、相互に直交する直交座標系の３軸方向に定義しているが、これは、説明のために便宜上記したものであり、装置、器具、部品等の配置や向き等を限定するものではない。装置、器具、部品等の構成について、その材質、形状、大きさ等は、本発明の範囲内で適宜変更することができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals. In the description of the embodiments, the description of the same or corresponding parts will be appropriately omitted or simplified. Further, in each drawing, the arrow X, the arrow Y, and the arrow Z are defined in the directions of the three axes of the orthogonal coordinate system which are orthogonal to each other, but this is shown for convenience of explanation, and the device and the instrument However, the arrangement and orientation of parts and the like are not limited. The materials, shapes, sizes, etc. of the configurations of the devices, instruments, parts, etc. can be appropriately changed within the scope of the present invention.

実施の形態１．
図１は、本発明に係る照明装置の斜視図である。照明装置１００は、電力を供給されることによって点灯する長尺形状の照明ランプ１と、照明ランプ１を装着可能であり照明ランプ１に電力を供給する照明器具１０１と、を具備する。照明装置１００は、照明ランプ１を室内に向けて天井又は壁面に取り付けられ、照明ランプ１を点灯させることによって室内に光が照射される。 Embodiment 1.
FIG. 1 is a perspective view of an illumination device according to the present invention. The lighting device 100 includes a long-shaped lighting lamp 1 that is turned on by being supplied with electric power, and a lighting fixture 101 to which the lighting lamp 1 can be attached and which supplies electric power to the lighting lamp 1. The lighting device 100 is attached to a ceiling or a wall surface with the lighting lamp 1 facing the room, and lights the room by lighting the lighting lamp 1.

照明器具１０１は、器具本体１０２と、保持ソケット１０３と、給電ソケット１０４と、電源ボックス１０５と、を備えている。器具本体１０２は、内部が中空であり長尺の箱型形状である。また、器具本体１０２は、Ｖ字ばね又は継手等の取付具（図示省略）を有しており、取付具を用いて天井又は壁面に取り付けられる。 The lighting fixture 101 includes a fixture body 102, a holding socket 103, a power supply socket 104, and a power supply box 105. The instrument body 102 is hollow and has a long box shape. Further, the instrument body 102 has an attachment (not shown) such as a V-shaped spring or a joint, and is attached to the ceiling or the wall surface using the attachment.

器具本体１０２の照明ランプ１が装着される側の面には、長手方向（矢印Ｘの方向）の一方の端部近傍に保持ソケット１０３と、長手方向（矢印Ｘの方向）の他方の端部近傍に給電ソケット１０４とがそれぞれ突出して設けられている。保持ソケット１０３と給電ソケット１０４の間隔は、照明ランプ１の長手方向の長さに略等しく、保持ソケット１０３と給電ソケット１０４は照明ランプ１を保持することができる。また、給電ソケット１０４は、保持している照明ランプ１と電気的に接続されている。 On the surface of the instrument body 102 on which the illumination lamp 1 is mounted, a holding socket 103 is provided near one end in the longitudinal direction (direction of arrow X), and the other end in the longitudinal direction (direction of arrow X). A power supply socket 104 and a power supply socket 104 are provided so as to project in the vicinity. The distance between the holding socket 103 and the power feeding socket 104 is substantially equal to the length of the illumination lamp 1 in the longitudinal direction, and the holding socket 103 and the power feeding socket 104 can hold the illumination lamp 1. The power supply socket 104 is electrically connected to the held illumination lamp 1.

また、器具本体１０２の内部には、電源ボックス１０５が収納されている。電源ボックス１０５は、外部電源から電力の供給を受け照明ランプ１に適した電圧又は電流に変換する電源装置（図示省略）を有している。電源装置は、給電ソケット１０４と電気的に接続されており、給電ソケット１０４を介して照明ランプ１に電力を供給することができる。 A power supply box 105 is housed inside the instrument body 102. The power supply box 105 has a power supply device (not shown) that receives power supply from an external power supply and converts it into a voltage or current suitable for the illumination lamp 1. The power supply device is electrically connected to the power supply socket 104 and can supply power to the illumination lamp 1 via the power supply socket 104.

図２は、実施の形態１に係る照明ランプの斜視図である。図３は、実施の形態１に係る照明ランプの図２のＡ−Ａ断面を示す断面図である。なお、図２ではカバー２の内部の説明のため、カバー２の一部を省略している。実施の形態１の照明ランプ１は、長尺中空の筒状であり長手方向（矢印Ｘの方向）の両端部が開口しているカバー２と、光源４と基板５とヒートシンク６とから構成されカバー２の内部に保持される光源モジュール３と、カバー２の長手方向の一方の端部に取り付けられる保持口金７と、カバー２の長手方向の他方の端部に取り付けられる給電口金８と、を備えている。また、図３に示ように、照明ランプ１の長手方向に対して垂直な方向（矢印Ｚの方向）において、後述する光源４から光が出射される側を出射側（矢印Ｚの先端側）と称し、出射側とは反対側を器具側（矢印Ｚの基点側）と称する。すなわち、照明ランプ１は、照明ランプ１の器具側（矢印Ｚの基点側）が照明器具１０１に対抗するように照明器具１０１に装着される。 FIG. 2 is a perspective view of the illumination lamp according to the first embodiment. FIG. 3 is a cross-sectional view showing the AA cross section of FIG. 2 of the illumination lamp according to the first embodiment. Note that, in FIG. 2, a part of the cover 2 is omitted for explanation of the inside of the cover 2. The illumination lamp 1 according to the first embodiment is composed of a long hollow tubular shape, a cover 2 having both ends in the longitudinal direction (direction of arrow X) opened, a light source 4, a substrate 5, and a heat sink 6. A light source module 3 held inside the cover 2, a holding cap 7 attached to one end of the cover 2 in the longitudinal direction, and a power supply cap 8 attached to the other end of the cover 2 in the longitudinal direction. I have it. Further, as shown in FIG. 3, in the direction perpendicular to the longitudinal direction of the illumination lamp 1 (direction of arrow Z), the side from which the light source 4 described later emits light is the emission side (the tip side of arrow Z). And the side opposite to the emission side is referred to as the instrument side (base point side of arrow Z). That is, the illumination lamp 1 is attached to the illumination equipment 101 so that the equipment side of the illumination lamp 1 (the base point side of the arrow Z) faces the illumination equipment 101.

図４は、実施の形態１に係るカバーの一方の端部（矢印Ｘの基点側）からの斜視図である。図５は、実施の形態１に係るカバーの他方からの端部（矢印Ｘの先端側）の斜視図である。カバー２は、長尺であり円筒形状の円筒部２１と、円筒部２１の内周面より円筒部２１の内側に向かって突出する一対の出射側保持突起部２２と、同じく円筒部２１の内周面より突出する一対の器具側保持突起部２３とが形成されている。また、カバー２の長手方向（矢印Ｘの方向）の両端部は開口している。なお、出射側保持突起部２２と、器具側保持突起部２３は、カバー２の長手方向全体に渡って延在するように形成されており、カバー２を長手方向に垂直に切断した断面の形状は、長手方向の位置によらず常に図３に示すような断面形状になっている。なお、出射側保持突起部２２が、本発明の保持突起部に該当する。 FIG. 4 is a perspective view of the cover according to the first embodiment as viewed from one end (on the side of the base point of arrow X). FIG. 5 is a perspective view of the other end (the tip side of arrow X) of the cover according to the first embodiment. The cover 2 has a long and cylindrical cylindrical portion 21, a pair of emission side holding projections 22 projecting from the inner peripheral surface of the cylindrical portion 21 toward the inside of the cylindrical portion 21, and the inside of the cylindrical portion 21. A pair of device-side holding projections 23 projecting from the peripheral surface are formed. Further, both ends of the cover 2 in the longitudinal direction (direction of arrow X) are open. The emission-side holding protrusion 22 and the instrument-side holding protrusion 23 are formed so as to extend over the entire longitudinal direction of the cover 2, and the shape of the cross section of the cover 2 cut perpendicularly to the longitudinal direction. Has a cross-sectional shape as shown in FIG. 3 regardless of the position in the longitudinal direction. The emission-side holding protrusion 22 corresponds to the holding protrusion of the present invention.

出射側保持突起部２２のうち、円筒部２１の長手方向（矢印Ｘの方向）に対して平行な面のうち出射側の面を出射側平面２２ａと称し、器具側の面を器具側平面２２ｂと称し、出射側平面２２ａと器具側平面２２ｂの間の面を先端面２２ｃと称する。出射側保持突起部２２の出射側平面２２ａと器具側平面２２ｂは略平行である。また、出射側保持突起部２２は、カバー２の内部に光源モジュール３を固定した際に、出射側平面２２ａが後述する光源４の出射側の面よりも器具側に位置するように形成されている。また、出射側保持突起部２２と器具側保持突起部２３は、カバー２の長手方向に平行な中心軸Ｏ（図３参照）よりも器具側に偏って位置している。なお、カバー２の中心軸Ｏは、照明ランプ１の中心軸でもある。 Of the planes parallel to the longitudinal direction (direction of arrow X) of the cylindrical portion 21 of the emission side holding projection 22, the plane on the emission side is referred to as a plane 22a on the emission side, and the plane on the instrument side is a plane 22b on the instrument side. The surface between the emission side plane 22a and the instrument side plane 22b is referred to as the tip surface 22c. The emission side plane 22a of the emission side holding projection 22 and the instrument side plane 22b are substantially parallel to each other. Further, the emission-side holding projection 22 is formed such that when the light source module 3 is fixed inside the cover 2, the emission-side flat surface 22a is located closer to the device than the emission-side surface of the light source 4 described later. There is. Further, the emission side holding protrusion 22 and the instrument side holding protrusion 23 are positioned closer to the instrument side than the central axis O (see FIG. 3) parallel to the longitudinal direction of the cover 2. The central axis O of the cover 2 is also the central axis of the illumination lamp 1.

カバー２において、円筒部２１並びに器具側保持突起部２３と、出射側保持突起部２２とは、それぞれ異なる材料を用いて形成されている。ここで円筒部２１並びに器具側保持突起部２３を形成するために用いられる材料を第１のカバー材料と称し、出射側保持突起部２２を形成するために用いられる材料を第２のカバー材料と称する。なお、円筒部２１並びに器具側保持突起部２３と、出射側保持突起部２２とは異なる材料を用いて形成されているが、円筒部２１と出射側保持突起部２２と器具側保持突起部２３は一体化されている。 In the cover 2, the cylindrical portion 21, the device-side holding protrusion 23, and the emission-side holding protrusion 22 are formed of different materials. Here, the material used to form the cylindrical portion 21 and the device-side holding projection 23 is referred to as a first cover material, and the material used to form the emission-side holding projection 22 is referred to as a second cover material. To call. It should be noted that although the cylindrical portion 21, the device-side holding protrusion 23, and the emitting-side holding protrusion 22 are formed using different materials, the cylindrical portion 21, the emitting-side holding protrusion 22, and the device-side holding protrusion 23 are formed. Are integrated.

第１のカバー材料は、透光性を有する材料である。第１のカバー材料としては、例えばポリカーボネート又はアクリル樹脂等の透光性を有する樹脂を用いることができる。また、実施の形態１では、第１のカバー材料はポリカーボネート等の透光性を有する樹脂を基材として、基材とは屈折率が異なる拡散剤を所定の重量比で混合した高光拡散樹脂材料を用いている。円筒部２１は高光拡散樹脂材料で形成されているため、光を拡散させる光拡散性を有している。なお、円筒部２１は透光性を有する第１のカバー材料から構成されており光源４から出射する光が透過するため、本発明の透光部に該当する。 The first cover material is a translucent material. As the first cover material, a translucent resin such as polycarbonate or acrylic resin can be used. Further, in the first embodiment, the first cover material is a high light-diffusing resin material in which a translucent resin such as polycarbonate is used as a base material, and a diffusing agent having a refractive index different from that of the base material is mixed at a predetermined weight ratio. Is used. Since the cylindrical portion 21 is made of a high light diffusing resin material, it has a light diffusing property for diffusing light. Since the cylindrical portion 21 is made of the first cover material having a light-transmitting property and allows the light emitted from the light source 4 to pass therethrough, it corresponds to the light-transmitting portion of the present invention.

第２のカバー材料は、第１のカバー材料と比較して反射率が高い材料である。第２のカバー材料としては、例えばポリカーボネート、アクリル樹脂又はポリブチレンテレフタレート等の樹脂を基材として、二酸化チタン等の反射率を向上させる材料を所定の重量比で混合した高反射樹脂材料を用いることができる。 The second cover material is a material having a higher reflectance than the first cover material. As the second cover material, use is made of a highly reflective resin material in which a resin such as polycarbonate, acrylic resin or polybutylene terephthalate is used as a base material and a material for improving reflectance such as titanium dioxide is mixed at a predetermined weight ratio. You can

円筒部２１並びに器具側保持突起部２３と、出射側保持突起部２２とがそれぞれ異なる材料を用いて形成されたカバー２は、例えば二色成形によって製造される。ここで二色成形とは、例えば、二種の異なる樹脂組成物を相異なる複数の押出機から溶融して押し出した後に、複数の押出機が接続された１基のダイス内で一体化させ、その後に冷却固化することにより、界面で溶融接合し一体化した二種の樹脂組成物の複合成形体を得る手法を指す。実施の形態１では、円筒部２１並びに器具側保持突起部２３を形成する押出機より第１のカバー材料を溶融して押し出し、出射側保持突起部２２を形成する押出機より第２のカバー材料を溶融して押し出し、１基のダイス内で一体化させた後に、冷却固化することによってカバー２が形成されている。 The cover 2 in which the cylindrical portion 21, the device-side holding protrusion 23, and the emission-side holding protrusion 22 are made of different materials is manufactured by, for example, two-color molding. Here, the two-color molding is, for example, after melting two different resin compositions from a plurality of different extruders and extruding them, they are integrated in one die to which a plurality of extruders are connected, After that, it is a method of obtaining a composite molded body of two kinds of resin compositions that are melt-bonded and integrated at the interface by cooling and solidifying. In the first embodiment, the first cover material is melted and extruded from the extruder that forms the cylindrical portion 21 and the tool-side holding projection 23, and the second cover material is extruded from the extruder that forms the emission-side holding projection 22. Is melted and extruded to be integrated in one die, and then cooled and solidified to form the cover 2.

なお、図３に示すように、実施の形態１では、円筒部２１及び出射側保持突起部２２のそれぞれの厚さＴは等しく、例えば、Ｔ＝１[ｍｍ]である。また、実施の形態１において中心軸Ｏから円筒部２１の内周面までの距離Ｒｉは、Ｒｉ＝１１．７５[ｍｍ]である。さらに、出射側保持突起部２２の出射側平面２２ａから、出射側平面２２ａに対して平行であり中心軸Ｏを通過する平面までの距離Ｈは、Ｈ＝５．４２[ｍｍ]である。ただし、Ｔ，Ｒｉ及びＨの寸法は実施の形態１の寸法に限定されない。 As shown in FIG. 3, in the first embodiment, the thickness T of each of the cylindrical portion 21 and the emission-side holding projection 22 is equal, for example, T=1 [mm]. In the first embodiment, the distance Ri from the central axis O to the inner peripheral surface of the cylindrical portion 21 is Ri=11.75 [mm]. Further, the distance H from the emission-side flat surface 22a of the emission-side holding protrusion 22 to the plane parallel to the emission-side flat surface 22a and passing through the central axis O is H=5.42 [mm]. However, the dimensions of T, Ri, and H are not limited to the dimensions of the first embodiment.

図１及び２に示すように、保持口金７は、カバー２の一方の端部の開口を覆うように取り付けられ絶縁性を有する保持口金筐体７１と、保持口金筐体７１から照明ランプ１の長手方向（矢印Ｘの方向）に立設し導電性を有する保持端子７２と、を備えている。保持端子７２は保持口金筐体７１と一体化されている。保持端子７２は、例えばインサート成形等の方法によって保持口金筐体７１に埋め込まれている。また、保持口金筐体７１にはねじ孔７３が設けられており、ねじ溝が形成されたねじ９の軸部がねじ孔７３に挿通され、後述するヒートシンク６のねじ孔６６にねじ込まれることによって保持口金７は光源モジュール３に固定される。なお、保持口金７はリベットなどねじ以外の固定部材を用いて光源モジュール３に固定されてもよいし、固定部材を用いることなく嵌合、螺合などの方法によって保持口金７が光源モジュール３に固定されても良い。 As shown in FIGS. 1 and 2, the holding base 7 is attached to cover an opening at one end of the cover 2 and has a holding base housing 71 having an insulating property. And a holding terminal 72 which is electrically conductive and is provided upright in the longitudinal direction (direction of arrow X). The holding terminal 72 is integrated with the holding base housing 71. The holding terminal 72 is embedded in the holding cap housing 71 by a method such as insert molding. Further, the holding base housing 71 is provided with a screw hole 73, and the shaft portion of the screw 9 in which the screw groove is formed is inserted into the screw hole 73 and screwed into the screw hole 66 of the heat sink 6 described later. The holding base 7 is fixed to the light source module 3. The holding base 7 may be fixed to the light source module 3 using a fixing member such as a rivet other than screws, or the holding base 7 may be fixed to the light source module 3 by a method such as fitting or screwing without using a fixing member. It may be fixed.

給電口金８は、カバー２の他方の端部の開口を覆うように取り付けられ絶縁性を有する給電口金筐体８１と、給電口金筐体８１から照明ランプ１の長手方向（矢印Ｘの方向）に立設し導電性を有する給電端子８２と、を備えている。給電端子８２は給電口金筐体８１と一体化されている。給電端子８２は、例えばインサート成形等の方法によって給電口金筐体８１に埋め込まれている。また、給電口金筐体８１にはねじ孔８３（図２２参照）が設けられており、ねじ溝が形成されたねじ９の軸部がねじ孔８３に挿通され、後述するヒートシンク６のねじ孔６６にねじ込まれることによって給電口金８は光源モジュール３に固定されている。なお、保持口金８はリベットなどねじ以外の固定部材を用いて光源モジュール３に固定されてもよいし、固定部材を用いることなく嵌合、螺合などの方法によって保持口金８が光源モジュール３に固定されても良い。 The power supply base 8 is attached to cover the opening at the other end of the cover 2, and has a power supply base housing 81 having an insulating property. The power supply base housing 81 extends from the power supply base housing 81 in the longitudinal direction of the illumination lamp 1 (direction of arrow X). And a power supply terminal 82 that is upright and has conductivity. The power supply terminal 82 is integrated with the power supply base housing 81. The power supply terminal 82 is embedded in the power supply base housing 81 by a method such as insert molding. Further, a screw hole 83 (see FIG. 22) is provided in the power supply cap housing 81, the shaft portion of the screw 9 having a screw groove is inserted into the screw hole 83, and a screw hole 66 of a heat sink 6 described later is formed. The power supply cap 8 is fixed to the light source module 3 by being screwed into. The holding base 8 may be fixed to the light source module 3 using a fixing member such as a rivet other than screws, or the holding base 8 may be fixed to the light source module 3 by a method such as fitting or screwing without using a fixing member. It may be fixed.

また、保持ソケット１０３は保持端子７２を保持し、給電ソケット１０４は給電端子８２を保持することによって、照明器具１０１は照明ランプ１を保持することができる。また、少なくとも給電ソケット１０４は、給電端子８２を保持すると同時に、給電端子８２と電気的に接続される。 Further, the holding socket 103 holds the holding terminal 72, and the power feeding socket 104 holds the power feeding terminal 82, so that the lighting fixture 101 can hold the illumination lamp 1. Further, at least the power supply socket 104 holds the power supply terminal 82, and at the same time, is electrically connected to the power supply terminal 82.

図２及び図３に示すように、光源モジュール３は、光源４と、長尺の平板状であり光源４が実装されている基板５と、カバー２を介して光源４から発生する熱を照明ランプ１外部に放散するヒートシンク６を備えている。光源モジュール３は、光源４より出射される光が出射側へ出射される位置に配置されている。 As shown in FIG. 2 and FIG. 3, the light source module 3 illuminates heat generated from the light source 4 through the light source 4, a long flat plate-shaped substrate 5 on which the light source 4 is mounted, and the cover 2. A heat sink 6 that dissipates outside the lamp 1 is provided. The light source module 3 is arranged at a position where the light emitted from the light source 4 is emitted to the emission side.

光源４は、発光面から光を出射する素子であり、基板５の長手方向（矢印Ｘの方向）に沿って平行に複数個配列されている。実施の形態１において、光源４はＬＥＤであり、波長が４４０〜４８０ｎｍの青色光を出射するＬＥＤチップ上に青色光を黄色光に波長変換する蛍光体を配してパッケージ化した疑似白色ＬＥＤが用いられている。なお、光源４の数、配置位置、種類は照明ランプ１の用途に応じて決定されるため、本発明では光源４の数、配置位置、種類は限定されない。例えば、長手方向の長さが基板５の長手方向の長さと略等しい、長尺の有機エレクトロルミネッセンス素子（Ｏｒｇａｎｉｃ Ｅｌｅｃｔｒｏｌｕｍｉｎｅｓｃｅｎｃｅ；以下有機ＥＬ素子と称する）１つを光源４として用い、有機ＥＬ素子の長手方向と基板５の長手方向が平行になるように配置しても構わない。 The light source 4 is an element that emits light from the light emitting surface, and a plurality of light sources 4 are arranged in parallel along the longitudinal direction of the substrate 5 (direction of arrow X). In the first embodiment, the light source 4 is an LED, and a pseudo white LED packaged by arranging a phosphor that converts blue light into yellow light on an LED chip that emits blue light with a wavelength of 440 to 480 nm is packaged. It is used. Since the number, arrangement position, and type of the light sources 4 are determined according to the application of the illumination lamp 1, the number, arrangement positions, and types of the light sources 4 are not limited in the present invention. For example, one long organic electroluminescence element (Organic Electroluminescence) (hereinafter, referred to as an organic EL element) whose length in the lengthwise direction is substantially equal to the length in the lengthwise direction of the substrate 5 is used as a light source 4 and the length of the organic EL element is increased. You may arrange|position so that the direction and the longitudinal direction of the board|substrate 5 may become parallel.

また、図３に示すように光源４から出射する光は、発光面に垂直な軸に対して対称に照射角αだけ広がる。実施の形態１ではこの照射角αは１２０度である。 Further, as shown in FIG. 3, the light emitted from the light source 4 spreads symmetrically with respect to the axis perpendicular to the light emitting surface by the irradiation angle α. In the first embodiment, this irradiation angle α is 120 degrees.

基板５の光源４が実装される実装面には、例えば、ダイオード、コンデンサ、ヒューズ又は抵抗等の電子部品（図示省略）が実装され、さらに、各光源４と各電子部品とを電気的に接続させる配線パターン（図示省略）が設けられている。また、各光源４と各電子部品とは配線パターンを介して給電端子８２と電気的に接続されている。このため、光源４には、給電ソケット１０４と給電端子８２と配線パターンとを介して電源装置から電力が供給され、光源４は点灯する。 Electronic components (not shown) such as diodes, capacitors, fuses, or resistors are mounted on the mounting surface of the substrate 5 on which the light sources 4 are mounted, and the light sources 4 and the electronic components are electrically connected. A wiring pattern (not shown) is provided. Further, each light source 4 and each electronic component are electrically connected to the power supply terminal 82 via a wiring pattern. Therefore, power is supplied to the light source 4 from the power supply device via the power supply socket 104, the power supply terminal 82, and the wiring pattern, and the light source 4 is turned on.

基板５の材料には、ガラスエポキシ材料、紙フェノール材料、コンポジット材料、セラミック材料、あるいはアルミニウム等の金属材料が材料コスト、設計仕様などを勘案して選定される。また、基板５の実装面は、基板５の材料の反射率よりも高い反射率を有するレジストが塗布されている。 As the material of the substrate 5, a glass epoxy material, a paper phenol material, a composite material, a ceramic material, or a metal material such as aluminum is selected in consideration of material costs, design specifications, and the like. The mounting surface of the substrate 5 is coated with a resist having a reflectance higher than that of the material of the substrate 5.

なお、実施の形態１では、基板５の短手方向（矢印Ｙの方向）の長さ寸法（基板５の幅寸法）は１１[ｍｍ]である。 In the first embodiment, the length dimension (width dimension of the substrate 5) of the substrate 5 in the lateral direction (direction of arrow Y) is 11 [mm].

図６は、実施の形態１に係るヒートシンクの一方の端部（矢印Ｘの基点側）からの斜視図である。図７は、実施の形態１に係るヒートシンクの他方の端部（矢印Ｘの先端側）からの斜視図である。ヒートシンク６は、長尺形状の部材であり、光源設置部６１と、一対の側壁部６２と、一対の出射側支持部６３と、一対の器具側支持部６４と、一対のねじ固定部６５とが一体化されて構成されている。また、光源設置部６１と、側壁部６２と、出射側支持部６３と、器具側支持部６４と、ねじ固定部６５は、ヒートシンク６の長手方向（矢印Ｘの方向）全体に渡って延在するように形成されており、ヒートシンク６を長手方向に垂直に切断した断面の形状は、長手方向の位置によらず常に図３に示すような形状になっている。また、ヒートシンク６の材料として、熱伝導性と剛性が優れ、線熱膨張係数が小さい金属材料が用いられることが望ましく、実施の形態１におけるヒートシンク６はアルミニウムを用いて形成されている。さらに、ヒートシンク６の表面には、ヒートシンク６の素材よりも反射率の高い高反射膜（図示省略）が形成されている。実施の形態１における高反射膜は白色の着色アルマイトの層である。 FIG. 6 is a perspective view of the heat sink according to the first embodiment as viewed from one end (on the side of the base point of arrow X). FIG. 7 is a perspective view of the heat sink according to the first embodiment as viewed from the other end (on the side of the arrow X). The heat sink 6 is an elongated member, and includes a light source installation portion 61, a pair of side wall portions 62, a pair of emission side support portions 63, a pair of instrument side support portions 64, and a pair of screw fixing portions 65. Are integrated and configured. Further, the light source installation portion 61, the side wall portion 62, the emission side support portion 63, the instrument side support portion 64, and the screw fixing portion 65 extend over the entire lengthwise direction of the heat sink 6 (direction of arrow X). The shape of the cross section obtained by cutting the heat sink 6 perpendicularly to the longitudinal direction is always as shown in FIG. 3 regardless of the position in the longitudinal direction. Further, as the material of the heat sink 6, it is desirable to use a metal material having excellent thermal conductivity and rigidity and a small linear thermal expansion coefficient, and the heat sink 6 in the first embodiment is formed using aluminum. Further, on the surface of the heat sink 6, a highly reflective film (not shown) having a reflectance higher than that of the material of the heat sink 6 is formed. The highly reflective film in Embodiment 1 is a layer of white colored alumite.

光源設置部６１は平板形状であり、ヒートシンク６がカバー２の内部に固定された際に出射側に位置する面には、図２及び図３で示すように光源４が出射側を向くように基板５が設置されている。基板５をヒートシンク６に設置する方法としては、接着剤あるいは両面テープ等の接着部材によって接着固定する方法や、基板５とヒートシンク６にねじ孔を設けねじを用いてねじ止めする方法等を採用することができる。 The light source installation portion 61 has a flat plate shape, and the light source 4 faces the emission side as shown in FIGS. 2 and 3 on the surface located on the emission side when the heat sink 6 is fixed inside the cover 2. The substrate 5 is installed. As a method of installing the substrate 5 on the heat sink 6, a method of adhering and fixing with an adhesive or an adhesive member such as a double-sided tape, a method of providing a screw hole in the substrate 5 and the heat sink 6 and screwing them with a screw, and the like are adopted. be able to.

光源設置部６１の出射側に位置する面には、一対の側壁部６２が出射側に向かって立設している。側壁部６２同士の間隔は、少なくとも基板５の短手方向（矢印Ｙの方向）の長さ寸法（基板５の幅寸法）よりも長い。基板５は、光源設置部６１の一対の側壁部６２の間に設置されている。このため、側壁部６２によって基板５を設置する際の位置決めが容易となる。また、光源モジュール３をカバー２の内部に固定した際に、側壁部６２は、出射側保持突起部２２の先端面２２ｃと対向する位置に形成され、また側壁部６２の先端は光源４の出射側の面よりも器具側に位置している。 On the surface of the light source installation portion 61 located on the emission side, a pair of side wall portions 62 are provided upright toward the emission side. The distance between the side wall portions 62 is at least longer than the length dimension (width dimension of the substrate 5) of the substrate 5 in the lateral direction (direction of arrow Y). The substrate 5 is installed between the pair of side wall parts 62 of the light source installation part 61. Therefore, the side wall portion 62 facilitates positioning when the substrate 5 is installed. Further, when the light source module 3 is fixed inside the cover 2, the side wall portion 62 is formed at a position facing the front end surface 22c of the emission side holding projection 22, and the front end of the side wall portion 62 emits the light source 4. It is located closer to the device than the side surface.

光源設置部６１の短手方向（矢印Ｙの方向）の両端部には、短手方向の外側に向かって突出した出射側支持部６３と、器具側に向かって立設する器具側支持部６４とがそれぞれ設けられている。また、光源モジュール３をカバー２の内部に固定した際に、出射側支持部６３は出射側保持突起部２２の器具側平面２２ｂと当接する位置に形成され、器具側支持部６４は円筒部２１の内周面に沿い、器具側支持部６４の先端が器具側保持突起部２２と係合する形状に形成されている。さらに、ヒートシンク６の厚み方向（矢印Ｚの方向）において、出射側支持部６３と器具側支持部６４の間には、間隙が形成されている。 At both ends in the lateral direction (direction of arrow Y) of the light source installation portion 61, an emission side support portion 63 protruding outward in the lateral direction and an instrument side support portion 64 standing upright toward the instrument side. And are provided respectively. Further, when the light source module 3 is fixed to the inside of the cover 2, the emission side support portion 63 is formed at a position where it is brought into contact with the instrument side flat surface 22b of the emission side holding projection 22, and the instrument side support portion 64 is formed. The distal end of the device-side support portion 64 is formed in a shape that engages with the device-side holding projection 22 along the inner peripheral surface of the device. Further, in the thickness direction of the heat sink 6 (direction of arrow Z), a gap is formed between the emitting side support portion 63 and the instrument side support portion 64.

光源設置部６１の器具側に位置する面には、一対のねじ固定部６５が器具側へ突出して設けられている。ねじ固定部６５の同士の間には、ねじ孔６６を形成している。保持口金筐体７１に形成されたねじ孔７３又は給電口金筐体８１に形成されたねじ孔に挿入されたねじ９がねじ孔６６に挿入されることにより、光源モジュール３の一部であるヒートシンク６と保持口金７０又は給電口金８０とが固定される。また、ヒートシンク６がカバー２の内部に固定されている状態でヒートシンク６に保持口金７０又は給電口金８０が固定されると、保持口金７０はカバー２の一方の端部を覆うように固定され、給電口金８０はカバー２の他方の端部を覆うように固定される。 A pair of screw fixing portions 65 are provided on the surface of the light source installation portion 61 located on the device side so as to project toward the device. A screw hole 66 is formed between the screw fixing portions 65. The screw 9 inserted into the screw hole 73 formed in the holding base housing 71 or the screw hole formed in the power supply base housing 81 is inserted into the screw hole 66, so that a heat sink that is a part of the light source module 3 is formed. 6 and the holding base 70 or the power supply base 80 are fixed. Further, when the holding cap 70 or the power supply cap 80 is fixed to the heat sink 6 while the heat sink 6 is fixed inside the cover 2, the holding cap 70 is fixed so as to cover one end of the cover 2, The power supply cap 80 is fixed so as to cover the other end of the cover 2.

また、図２，３で示すようにカバー２の一方の端部に保持口金７が取り付けられ、他方の端部に給電口金８が取り付けられた場合、カバー２の内部にはカバー２と保持口金７と、給電口金８とで囲まれたカバー内空間２４が形成される。さらに、光源モジュール３をカバー２の内部に固定した場合において、カバー内空間２４は光源モジュール３によって４つの空間に分割される。この４つの空間のうち、光源４が面する空間を出射側空間２５と称し、光源４が面していない残りの３つの空間を合わせて器具側空間２６と称する。出射側空間２５は、円筒部２１の内周面と、出射側保持突起部２２の出射側平面２２ａと、光源モジュール３と、保持口金７と、給電口金８と、に囲まれている。 Further, as shown in FIGS. 2 and 3, when the holding cap 7 is attached to one end of the cover 2 and the power supply cap 8 is attached to the other end, the cover 2 and the holding cap are inside the cover 2. A cover inner space 24 surrounded by 7 and the power supply cap 8 is formed. Further, when the light source module 3 is fixed inside the cover 2, the inner space 24 of the cover is divided into four spaces by the light source module 3. Of the four spaces, the space facing the light source 4 is referred to as the emission side space 25, and the remaining three spaces not facing the light source 4 are collectively referred to as the instrument side space 26. The emission side space 25 is surrounded by the inner peripheral surface of the cylindrical portion 21, the emission side flat surface 22a of the emission side holding projection 22, the light source module 3, the holding base 7, and the power supply base 8.

図８は、実施の形態１に係る照明ランプの光の経路を示す断面図である。次に、実施の形態１に係る光源４から出射される光について図８を用いて説明する。図８では光源４から出射される光のうち、円筒部２１と出射側保持突起部２２とでそれぞれ１回ずつ反射されて円筒部２１から出射する光の経路を矢印ａで示す。 FIG. 8 is a sectional view showing the light path of the illumination lamp according to the first embodiment. Next, the light emitted from the light source 4 according to the first embodiment will be described with reference to FIG. In FIG. 8, of the light emitted from the light source 4, the path of the light emitted from the cylindrical portion 21 after being reflected once by the cylindrical portion 21 and the emission side holding protrusion 22 is shown by an arrow a.

まず、光源４から出射される光は出射側空間２５を通過し、円筒部２１の内周面に到達する。円筒部２１は透光性を有する第１のカバー材料で形成されているため、円筒部２１の内周面に到達した光より、円筒部２１を透過しカバー２から照明ランプ１の外へ照射する照射光と、円筒部２１で反射して器具側へ戻される反射光とが生じる。なお、実施の形態１の円筒部２１は高光拡散樹脂材料を用いて形成しているため、照射光と反射光はそれぞれ様々な角度に拡散するが、図８では図示を割愛する。 First, the light emitted from the light source 4 passes through the emission side space 25 and reaches the inner peripheral surface of the cylindrical portion 21. Since the cylindrical portion 21 is formed of the first cover material having a light-transmitting property, the light reaching the inner peripheral surface of the cylindrical portion 21 is transmitted through the cylindrical portion 21 and radiated from the cover 2 to the outside of the illumination lamp 1. Irradiation light and reflected light that is reflected by the cylindrical portion 21 and returned to the instrument side are generated. Since the cylindrical portion 21 of the first embodiment is formed by using the high light diffusing resin material, the irradiation light and the reflected light are diffused at various angles, but the illustration is omitted in FIG.

円筒部２１で反射される反射光の一部は、図８の矢印ａで表すように出射側保持突起部２２の出射側平面２２ａに到達する。出射側保持突起部２２は第１のカバー材料と比較して反射率の高い第２のカバー材料で形成されているため、出射側保持突起部２２の出射側平面２２ａに到達した反射光の多くは、出射側保持突起部２２の出射側平面２２ａで出射側へと反射する。出射側保持突起部２２で出射側に反射した光は再び円筒部２１の内周面に到達し、円筒部２１に到達し、再び前述の出射光と反射光が生じる。 A part of the reflected light reflected by the cylindrical portion 21 reaches the emission side flat surface 22a of the emission side holding projection 22 as shown by an arrow a in FIG. Since the emission-side holding protrusion 22 is formed of the second cover material having a higher reflectance than the first cover material, most of the reflected light reaching the emission-side flat surface 22a of the emission-side holding protrusion 22 is included. Is reflected to the emission side by the emission side flat surface 22a of the emission side holding projection 22. The light reflected on the emitting side by the emitting side holding projection 22 reaches the inner peripheral surface of the cylindrical portion 21 again, reaches the cylindrical portion 21, and again the emitted light and the reflected light are generated.

ここで、実施の形態１の照明ランプ１と、出射側保持突起部２２も第１のカバー材料で形成される従来の照明ランプと、を比較すると、第２のカバー材料は第１のカバー材料に比べて反射率が高いため、実施の形態１の照明ランプ１の方が出射側に反射する反射光の光束は増加する。このため、実施の形態１の照明ランプ１は、出射側保持突起部２２で反射してから円筒部２１を透過しカバー２から照明ランプ１の外へ照射する図８の矢印ａの経路を辿るような光の光束が従来の照明ランプに比べて高くなり、光源４から出射された光を効率的に照明ランプ１の照射光として利用でき、照明ランプ１の発光効率を向上させることができる。 Here, when comparing the illumination lamp 1 of the first embodiment with a conventional illumination lamp in which the emission side holding projection 22 is also formed of the first cover material, the second cover material is the first cover material. Since the reflectance is higher than that of, the luminous flux of the reflected light reflected to the emission side of the illumination lamp 1 of the first embodiment increases. Therefore, the illumination lamp 1 according to the first embodiment follows the path indicated by the arrow a in FIG. 8 in which the illumination lamp 1 of the first embodiment reflects from the emission-side holding projection 22 and then passes through the cylindrical portion 21 and irradiates from the cover 2 to the outside of the illumination lamp 1. The luminous flux of such light becomes higher than that of the conventional illumination lamp, and the light emitted from the light source 4 can be efficiently used as the irradiation light of the illumination lamp 1, and the luminous efficiency of the illumination lamp 1 can be improved.

また、実施の形態１の照明ランプ１は図８の矢印ａの経路を辿る光のように、円筒部２１と出射側保持突起部２２との反射を利用して、光源４の照射角αの範囲外から光源４の光を照射することができ、照明ランプ１の照射角を光源４の照射角αよりも広げることができる。さらに、実施の形態１の照明ランプ１の出射側保持突起部２２は第１のカバー材料に比べて反射率が高い第２のカバー材料で形成されているため、出射側保持突起部２２が第１のカバー材料で形成されている場合と比べ、反射による光束の減少量が少なくなり、光源４の照射角αの範囲外から照射する光の光束の減少を抑えることができる。 Further, the illumination lamp 1 of the first embodiment uses the reflection of the cylindrical portion 21 and the emission side holding protrusion 22 to change the irradiation angle α of the light source 4 like the light that follows the path indicated by the arrow a in FIG. Light from the light source 4 can be irradiated from outside the range, and the irradiation angle of the illumination lamp 1 can be wider than the irradiation angle α of the light source 4. Furthermore, since the emission-side holding protrusion 22 of the illumination lamp 1 of Embodiment 1 is formed of the second cover material having a higher reflectance than the first cover material, the emission-side holding protrusion 22 has As compared with the case where the cover material of No. 1 is used, the amount of reduction of the luminous flux due to reflection is reduced, and the reduction of the luminous flux of light emitted from outside the irradiation angle α of the light source 4 can be suppressed.

また、実施の形態１の照明ランプ１では、照明ランプ１の外周は第１のカバー材料で一様に形成されている。このため、実施の形態１の照明ランプ１は、従来の照明ランプと略同様の外見であるため、使用者に違和感を生じさせにくい外見になっている。また、図８の矢印ｂのように出射側保持突起部２２の基部近傍を通過する経路を取る光は、出射側保持突起部２２で反射せず器具側へと透過してカバー２から照射される。このため、出射側保持突起部２２の基部近傍を通過する経路を取る光が出射側保持突起部２２で反射することによって光束が減少することを防止し、照明ランプ１の発光効率を向上させることができる。また、出射側保持突起部２２の基部近傍を通過する経路を取る光は器具側へ照射されるため、照明ランプ１の照射角を更に広げることができる。 Moreover, in the illumination lamp 1 of Embodiment 1, the outer periphery of the illumination lamp 1 is uniformly formed of the first cover material. For this reason, the illumination lamp 1 of the first embodiment has an appearance that is substantially the same as that of the conventional illumination lamp, and is an appearance that does not easily cause the user to feel uncomfortable. Light that follows a path that passes through the vicinity of the base of the emitting-side holding protrusion 22 as shown by the arrow b in FIG. 8 is not reflected by the emitting-side holding protrusion 22 and is transmitted to the instrument side and emitted from the cover 2. It Therefore, it is possible to prevent the light beam, which takes a path passing through the vicinity of the base of the emission-side holding protrusion 22, from being reflected by the emission-side holding protrusion 22 and reduce the luminous flux, thereby improving the luminous efficiency of the illumination lamp 1. You can In addition, since the light taking the path passing through the vicinity of the base of the emission side holding projection 22 is irradiated to the device side, the irradiation angle of the illumination lamp 1 can be further widened.

また、実施の形態１の出射側保持突起部２２を形成する第２のカバー材料は第１のカバー材料のように透光性を備える必要が無いため、反射率を向上させる材料以外にも他の物性を向上させるような材料を混合しても構わない。例えば、ガラスフィラー等の高剛性化材料を混合し、カバー２の剛性を向上させても良い Further, since the second cover material forming the emission side holding projection 22 of the first embodiment does not need to have translucency unlike the first cover material, other materials besides the material for improving the reflectance can be used. A material that improves the physical properties of may be mixed. For example, the rigidity of the cover 2 may be improved by mixing a high rigidity material such as glass filler.

なお、カバー２及びヒートシンク６の形状は実施の形態１のものだけに限らず、出射側保持突起部２２が第２のカバー材料で形成されており、出射側保持突起部２２の光源４が光を出射させる側の面、つまり出射側平面２２ａが出射側空間２５内に面していれば良い。このようなカバー２及びヒートシンク６の形状の例として、実施の形態１の第１から９の変形例でそれぞれ説明する。実施の形態１の第１から９の変形例において、それぞれカバー２及びヒートシンク６の形状が相違する。なお、その他の構成については実施の形態１と略同様であるため、説明を割愛する。 Note that the shapes of the cover 2 and the heat sink 6 are not limited to those of the first embodiment, and the emission side holding protrusion 22 is formed of the second cover material, and the light source 4 of the emission side holding protrusion 22 emits light. It suffices that the surface on the output side, that is, the output-side flat surface 22a faces the output-side space 25. Examples of the shapes of the cover 2 and the heat sink 6 will be described in the first to ninth modifications of the first embodiment. In the first to ninth modifications of the first embodiment, the shapes of the cover 2 and the heat sink 6 are different from each other. The rest of the configuration is substantially the same as that of the first embodiment, and therefore its explanation is omitted.

実施の形態１の第１の変形例．
図９は、実施の形態１の第１の変形例に係る照明ランプの断面図である。実施の形態１の第１の変形例の照明ランプ１ａは、実施の形態１の照明ランプ１と比べて、実施の形態１の第１の変形例のヒートシンク６ａには出射側支持部６３と器具側支持部６４との間の間隙が無くなり、出射側支持部６３及び器具側支持部６４と同様の役割を果たす支持部６７が形成されている点が異なっている。なお、実施の形態１の第１の変形例のカバー２ａの形状については実施の形態１のカバー２と略同様である。 First Modification of First Embodiment.
FIG. 9 is a cross-sectional view of the illumination lamp according to the first modified example of the first embodiment. The illumination lamp 1a according to the first modified example of the first embodiment is different from the illumination lamp 1 according to the first embodiment in that the heat sink 6a according to the first modified example of the first embodiment has an emission side support portion 63 and a device. The difference is that the gap with the side support portion 64 is eliminated, and a support portion 67 that plays the same role as the emission side support portion 63 and the instrument side support portion 64 is formed. The shape of the cover 2a of the first modification of the first embodiment is substantially the same as that of the cover 2 of the first embodiment.

実施の形態１の第１の変形例のヒートシンク６ａは、出射側支持部６３と器具側支持部６４との間の間隙が無くなり支持部６７が形成されているため、実施の形態１のヒートシンク６に比べて簡素な形状であり、ヒートシンク６よりも成形性の向上が見込める。また、出射側支持部６３と器具側支持部６４との間の間隙が無くなることによって、実施の形態１の第１の変形例のヒートシンク６ａの断面積は、実施の形態１のヒートシンク６の断面積よりも広く、ヒートシンクの剛性が向上し、実施の形態１の第１の変形例の照明ランプ１ａは反り及びたわみが生じ難くなる。また、ヒートシンクの断面積が大きいほどヒートシンクの熱容量も多くなるため、実施の形態１の第１の変形例のヒートシンク６ａは実施の形態１のヒートシンク６よりも光源４から奪う熱量が多く、光源４の信頼性が向上する。 In the heat sink 6a of the first modified example of the first embodiment, the gap between the emitting side support portion 63 and the instrument side support portion 64 is eliminated and the support portion 67 is formed, so the heat sink 6 of the first embodiment. The shape is simpler than that of, and the moldability can be expected to be improved as compared with the heat sink 6. Further, since the gap between the emitting side support portion 63 and the instrument side support portion 64 is eliminated, the cross-sectional area of the heat sink 6a according to the first modification of the first embodiment is the same as that of the heat sink 6 according to the first embodiment. The area is wider than the area, the rigidity of the heat sink is improved, and the illumination lamp 1a according to the first modification of the first embodiment is less likely to warp or bend. Further, the larger the cross-sectional area of the heat sink, the larger the heat capacity of the heat sink. Therefore, the heat sink 6a of the first modified example of the first embodiment takes more heat from the light source 4 than the heat sink 6 of the first embodiment, and the light source 4 Improves reliability.

実施の形態１の第２の変形例．
図１０は、実施の形態１の第２の変形例に係る照明ランプの断面図である。実施の形態１の第２の変形例の照明ランプ１ｂは、実施の形態１の第１の変形例の照明ランプ１ａと比べて、実施の形態１の第２の変形例のヒートシンク６ｂの支持部６７の厚さ方向（矢印Ｙの方向）の寸法が小さくなっている点が異なっている。すなわち、ヒートシンク６ｂの支持部６７は、ヒートシンク６ａの支持部６７よりも薄い。なお、実施の形態１の第２の変形例のカバー２ｂの形状については実施の形態１のカバー２と略同様である。 Second modification of the first embodiment.
FIG. 10 is a sectional view of an illumination lamp according to a second modification of the first embodiment. The illumination lamp 1b of the second modified example of the first embodiment is different from the illumination lamp 1a of the first modified example of the first embodiment in the support portion of the heat sink 6b of the second modified example of the first embodiment. The difference is that the dimension of 67 in the thickness direction (direction of arrow Y) is reduced. That is, the support portion 67 of the heat sink 6b is thinner than the support portion 67 of the heat sink 6a. The shape of the cover 2b of the second modification of the first embodiment is substantially the same as that of the cover 2 of the first embodiment.

実施の形態１の第２の変形例のヒートシンク６ｂは、実施の形態１の第１の変形例と同じく、実施の形態１のヒートシンク６に比べて簡素な形状であり、ヒートシンク６よりも成形性の向上が見込める。また、実施の形態１の第２の変形例のヒートシンク６ｂは、実施の形態１の第１の変形例のヒートシンク６ａに比べて断面積が小さい。つまり、ヒートシンク６ｂはヒートシンク６ａに比べて重量が軽くなるため、照明ランプ１ｂを軽くすることができる。 Like the first modification of the first embodiment, the heatsink 6b of the second modification of the first embodiment has a simpler shape than the heatsink 6 of the first embodiment and is more moldable than the heatsink 6. Can be expected to improve. The heat sink 6b of the second modification of the first embodiment has a smaller cross-sectional area than the heat sink 6a of the first modification of the first embodiment. That is, the weight of the heat sink 6b is lighter than that of the heat sink 6a, so that the illumination lamp 1b can be made lighter.

実施の形態１の第３の変形例．
図１１は、実施の形態１の第３の変形例に係る照明ランプの断面図である。実施の形態１の第３の変形例の照明ランプ１ｃは、実施の形態１の照明ランプ１と比べて、実施の形態１の第３の変形例のカバー２ｃでは、光源モジュール３をカバー２ｃの内部に固定した際に、出射側保持突起部２２の器具側平面２２ｂと器具側支持部６４とが当接する位置にカバー２ｃの出射側保持突起部２２が形成されている点が異なっている。なお、実施の形態１の第３の変形例のヒートシンク６ｃの形状については実施の形態１のヒートシンク６と略同様である。 Third modification of the first embodiment.
FIG. 11 is a sectional view of an illumination lamp according to a third modification of the first embodiment. The illumination lamp 1c of the third modified example of the first embodiment is different from the illumination lamp 1 of the first embodiment in that the cover 2c of the third modified example of the first embodiment includes the light source module 3 and the cover 2c. The difference is that the emission-side holding protrusion 22 of the cover 2c is formed at a position where the device-side flat surface 22b of the emission-side holding protrusion 22 and the device-side support portion 64 abut when fixed inside. The shape of the heat sink 6c of the third modification of the first embodiment is substantially the same as that of the heat sink 6 of the first embodiment.

実施の形態１の第３の変形例における出射側保持突起部２２の出射側平面２２ａから、出射側平面２２ａに対して平行であり中心軸Ｏを通過する平面までの距離Ｈａは、実施の形態１における当該距離Ｈと比べて長い。 The distance Ha from the emission-side plane 22a of the emission-side holding projection 22 in the third modification of the first embodiment to the plane parallel to the emission-side plane 22a and passing through the central axis O is the same as in the embodiment. It is longer than the distance H in 1.

実施の形態１の第３の変形例のカバー２ｃは、実施の形態１のカバー２に比べて、出射側保持突起部２２が更に器具側に寄って形成されているため、出射側保持突起部２２の突出量が小さくなっている。このため、実施の形態１の第３の変形例のカバー２ｃは、実施の形態１のカバー２に比べて、出射側保持突起部２２を形成するための第２のカバー材料の使用量が低減できる。また、出射側保持突起部２２が更に器具側に寄って形成されることによって、照明ランプ１ｃは光の照射角を大きくすることができる。 In the cover 2c of the third modification of the first embodiment, the emission side holding protrusion 22 is formed closer to the device side than the cover 2 of the first embodiment, and therefore, the emission side holding protrusion is formed. The protrusion amount of 22 is small. Therefore, in the cover 2c of the third modification of the first embodiment, compared to the cover 2 of the first embodiment, the amount of the second cover material used for forming the emission side holding projection 22 is reduced. it can. Further, since the emission side holding projection 22 is formed closer to the device side, the illumination lamp 1c can increase the irradiation angle of light.

実施の形態１の第４の変形例．
図１２は、実施の形態１の第４の変形例に係る照明ランプの断面図である。実施の形態１の第４の変形例の照明ランプ１ｄは、実施の形態１の第３の変形例の照明ランプ１ｃと比べて、実施の形態１の第４の変形例のヒートシンク６ｄには出射側支持部６３が形成されていない点が異なる。なお、実施の形態１の第４の変形例のカバー２ｄの形状については実施の形態１の第３の変形例のカバー２ｃと略同様である。 Fourth modification of the first embodiment.
FIG. 12 is a sectional view of an illumination lamp according to a fourth modification of the first embodiment. The illumination lamp 1d of the fourth modification of the first embodiment emits light to the heat sink 6d of the fourth modification of the first embodiment as compared with the illumination lamp 1c of the third modification of the first embodiment. The difference is that the side support portion 63 is not formed. The shape of the cover 2d of the fourth modification of the first embodiment is substantially the same as that of the cover 2c of the third modification of the first embodiment.

実施の形態１の第４の変形例のヒートシンク６ｄには出射側支持部６３が形成されていないため、実施の形態１の第３の変形例に比べて、出射側保持突起部２２の出射側平面２２ａの出射側空間２５に面する面積が広くなり、より顕著に本発明の照明ランプの発光効率を向上する効果を奏することができる。 Since the emission side support portion 63 is not formed in the heat sink 6d of the fourth modified example of the first embodiment, the emission side of the emission side holding projection 22 is different from that of the third modified example of the first embodiment. The area of the flat surface 22a facing the emission side space 25 is increased, and the effect of more significantly improving the luminous efficiency of the illumination lamp of the present invention can be achieved.

実施の形態１の第５の変形例．
図１３は、実施の形態１の第５の変形例に係る照明ランプの断面図である。実施の形態１の第５の変形例の照明ランプ１ｅは、実施の形態１の照明ランプ１に比べて、実施の形態１の第５の変形例のヒートシンク６ｅは小型化され、実施の形態１の第５の変形例のカバー２ｅの出射側保持突起部２２が器具側に寄った位置に形成され、器具側保持突起部２３が形成されていない点が異なる。 Fifth Modification of First Embodiment.
FIG. 13 is a sectional view of an illumination lamp according to a fifth modification of the first embodiment. In the illumination lamp 1e of the fifth modified example of the first embodiment, the heat sink 6e of the fifth modified example of the first embodiment is downsized compared to the illumination lamp 1 of the first embodiment, and The difference is that the emission side holding projection 22 of the cover 2e of the fifth modification is formed at a position closer to the device side, and the device side holding projection 23 is not formed.

実施の形態１の第５の変形例における出射側保持突起部２２の出射側平面２２ａから、出射側平面２２ａに対して平行であり中心軸Ｏを通過する平面までの距離Ｈｂは、実施の形態１における当該距離Ｈと比べて長い。 The distance Hb from the emission-side plane 22a of the emission-side holding projection 22 in the fifth modification of the first embodiment to the plane parallel to the emission-side plane 22a and passing through the central axis O is the same as that of the fifth embodiment. It is longer than the distance H in 1.

図１４は、実施の形態１の第５の変形例に係るヒートシンクの一方の端部（矢印Ｘの基点側）からの斜視図である。図１５は、実施の形態１の第５の変形例に係るヒートシンクの他方の端部（矢印Ｘの先端側）からの斜視図である。実施の形態１の第５の変形例に係るヒートシンク６ｅも、実施の形態１のヒートシンク６と同じく、光源設置部６１と、一対の側壁部６２と、一対の出射側支持部６３と、一対の器具側支持部６４と、一対のねじ固定部６５とが一体化されて、ヒートシンク６ｅの長手方向（矢印Ｘの方向）全体に渡って延在するように形成されている。 FIG. 14 is a perspective view of the heat sink according to the fifth modified example of the first embodiment as viewed from one end (on the side of the base point of arrow X). FIG. 15 is a perspective view of the heat sink according to the fifth modified example of the first embodiment from the other end (the tip side of arrow X). Like the heat sink 6 of the first embodiment, the heat sink 6e according to the fifth modified example of the first embodiment also includes a light source installation portion 61, a pair of side wall portions 62, a pair of emission side support portions 63, and a pair of side walls. The device-side support portion 64 and the pair of screw fixing portions 65 are formed integrally with each other so as to extend over the entire lengthwise direction (direction of arrow X) of the heat sink 6e.

光源設置部６１は、実施の形態１と同じく、平板状であり、出射側に位置する面には光源４が出射側を向くように基板５が設置されている。また、光源設置部６１の出射側に位置する面には、一対の側壁部６２が出射側に向かって立設している。さらに、光源設置部６１の短手方向（矢印Ｙの方向）の両端部には、短手方向に対して平行に突出した出射側支持部６３が設けられており、光源モジュール３をカバー２ｅの内部に固定した際に、出射側支持部６３は出射側保持突起部２２の器具側平面２２ｂと当接する位置に形成されている。 Like the first embodiment, the light source installation unit 61 is in the form of a flat plate, and the substrate 5 is installed on the surface located on the emission side so that the light source 4 faces the emission side. In addition, a pair of side wall portions 62 are provided upright toward the emission side on the surface of the light source installation portion 61 located on the emission side. Further, at both ends of the light source installation portion 61 in the lateral direction (direction of arrow Y), emission side support portions 63 protruding parallel to the lateral direction are provided, and the light source module 3 is covered by the cover 2e. The emission side support portion 63 is formed at a position where the emission side support portion 63 abuts on the instrument side flat surface 22b of the emission side holding projection portion 22 when fixed inside.

光源設置部６１の短手方向の両端部には、更に器具側に向かって立設する器具側支持部６４が設けられており、器具側支持部６４の先端は円筒部２１の内周面に沿う形状に形成されている。また、光源設置部６１の器具側に位置する面には、一対のねじ固定部６５が器具側へ突出して設けられており、ねじ固定部６５の先端も円筒部２１の内周面に沿う形状に形成されている。ねじ固定部６５同士の間には、ねじ孔６６が形成されている。さらに、ヒートシンク６の厚み方向（矢印Ｚの方向）において、出射側支持部６３と器具側支持部６４の間には、間隙が形成されている。また、ヒートシンク６の短手方向（矢印Ｙの方向）において、器具側支持部６５とねじ固定部６５との間にも、間隙が形成されている。 At both ends of the light source installation portion 61 in the lateral direction, instrument-side support portions 64 that stand upright toward the instrument side are provided, and the tip of the instrument-side support portion 64 is on the inner peripheral surface of the cylindrical portion 21. It is formed in a conforming shape. Further, a pair of screw fixing portions 65 are provided on the surface of the light source installation portion 61 located on the device side so as to project toward the device, and the tip of the screw fixing portion 65 also has a shape along the inner peripheral surface of the cylindrical portion 21. Is formed in. A screw hole 66 is formed between the screw fixing portions 65. Further, in the thickness direction of the heat sink 6 (direction of arrow Z), a gap is formed between the emitting side support portion 63 and the instrument side support portion 64. Further, in the lateral direction of the heat sink 6 (direction of arrow Y), a gap is also formed between the device side support portion 65 and the screw fixing portion 65.

また、実施の形態１の第５の変形例において、基板５の短手方向（矢印Ｙの方向）の長さ寸法（基板５の幅寸法）は、８．５[ｍｍ]である。 In addition, in the fifth modified example of the first embodiment, the length dimension (width dimension of the substrate 5) of the substrate 5 in the lateral direction (direction of arrow Y) is 8.5 [mm].

実施の形態１の第５の変形例のように、ヒートシンクを小型化することによって、光源４を、実施の形態１に比べてカバー２の中心軸Ｏより更に器具側に寄せて配置させることができ、光源４から出射された光がカバーで反射せずに照明ランプ１ｅの外へ照射される範囲が広くなる。実施の形態１の光源モジュール３のように複数の光源４が配列された光源モジュールでは、点灯時に光源４が配置された領域と光源４が配置されない領域との間には、輝度の差が発生する。この輝度の差は、使用者が目視などで外見を確認した時に複数並ぶ光源４が個々に独立して認識できてしまい、違和感を生じさせる。しかし、実施の形態１の第５の変形例のように光源４から出射された光が直接照射される範囲が広くなることにより、光源４が配置された領域と光源４が配置されない領域との間の輝度の差を抑制することができ、使用者の違和感を低減させることができる。 By reducing the size of the heat sink as in the fifth modification of the first embodiment, the light source 4 can be arranged closer to the instrument side than the central axis O of the cover 2 as compared with the first embodiment. Therefore, the range in which the light emitted from the light source 4 is emitted to the outside of the illumination lamp 1e without being reflected by the cover is widened. In the light source module in which the plurality of light sources 4 are arranged like the light source module 3 of the first embodiment, a difference in luminance occurs between the region where the light source 4 is arranged and the region where the light source 4 is not arranged at the time of lighting. To do. This difference in luminance causes a plurality of light sources 4 arranged in a row to be recognized independently when the user visually confirms the appearance, which causes a feeling of strangeness. However, as in the fifth modified example of the first embodiment, the range in which the light emitted from the light source 4 is directly irradiated becomes wider, and thus the region where the light source 4 is arranged and the region where the light source 4 is not arranged are separated. It is possible to suppress the difference in brightness between the two and reduce the discomfort of the user.

実施の形態１の第６の変形例．
図１６は、実施の形態１の第６の変形例に係る照明ランプの断面図である。実施の形態１の第６の変形例の照明ランプ１ｆは、実施の形態１の第５の変形例の照明ランプ１ｅと比べて、実施の形態１の第６の変形例のヒートシンク６ｆの出射側支持部６３と器具側支持部６４との間の間隙が無くなり、出射側支持部６３及び器具側支持部６４と同様の役割を果たす支持部６７が形成されている点が異なっている。なお、実施の形態１の第６の変形例のカバー２ｆの形状については実施の形態１の第５の変形例のカバー２ｅと略同様である。 Sixth modified example of the first embodiment.
FIG. 16 is a sectional view of an illumination lamp according to a sixth modification of the first embodiment. The illumination lamp 1f of the sixth modified example of the first embodiment is different from the illumination lamp 1e of the fifth modified example of the first embodiment in the emission side of the heat sink 6f of the sixth modified example of the first embodiment. The difference is that the gap between the support portion 63 and the instrument side support portion 64 is eliminated, and a support portion 67 that plays the same role as the emission side support portion 63 and the instrument side support portion 64 is formed. The shape of the cover 2f according to the sixth modification of the first embodiment is substantially the same as that of the cover 2e according to the fifth modification of the first embodiment.

実施の形態１の第６の変形例のヒートシンク６ｆは、出射側支持部６３と器具側支持部６４との間の間隙が無くなり支持部６７が形成されているため、実施の形態１の第５の変形例のヒートシンク６ｅに比べて簡素な形状であり、成形性の向上が見込める。また、出射側支持部６３と器具側支持部６４との間の間隙が無くなることによって、実施の形態１の第６の変形例のヒートシンク６ｆの断面積は、実施の形態１の第５の変形例の器具側支持部よりも大きくなる。このため、ヒートシンクの剛性が向上すると同時に熱容量も大きくなるため、実施の形態１の第１の変形例と同様の理由により、実施の形態１の第６の変形例の照明ランプ１ｆは反り、たわみが生じ難くなり、光源４の実装品質（信頼性）が向上する。 In the heat sink 6f of the sixth modified example of the first embodiment, since the gap between the emitting side support portion 63 and the instrument side support portion 64 is eliminated and the support portion 67 is formed, the fifth embodiment of the first embodiment. The shape is simpler than that of the heat sink 6e of the modified example, and the moldability can be expected to be improved. Further, since the gap between the emission side support portion 63 and the instrument side support portion 64 is eliminated, the cross-sectional area of the heat sink 6f according to the sixth modification of the first embodiment is the fifth variation of the first embodiment. It will be larger than the instrument side support in the example. Therefore, since the rigidity of the heat sink is improved and the heat capacity is also increased, the illumination lamp 1f of the sixth modified example of the first embodiment is warped and bent for the same reason as that of the first modified example of the first embodiment. Is less likely to occur, and the mounting quality (reliability) of the light source 4 is improved.

実施の形態１の第７の変形例．
図１７は、実施の形態１の第７の変形例に係る照明ランプの断面図である。実施の形態１の第７の変形例の照明ランプ１ｇは、実施の形態１の第５の変形例の照明ランプ１ｅと比べて、実施の形態１の第７の変形例のヒートシンク６ｇには器具側支持部６４とねじ固定部６５との間の間隙が無くなり、ねじ固定部６５に相当する部位が器具側支持部６４の一部になっている点が異なっている。なお、実施の形態１の第７の変形例のカバー２ｇの形状については実施の形態１の第５の変形例のカバー２ｅと略同様である。 Seventh modification of the first embodiment.
FIG. 17 is a cross-sectional view of the illumination lamp according to the seventh modified example of the first embodiment. The illumination lamp 1g of the seventh modified example of the first embodiment is different from the illumination lamp 1e of the fifth modified example of the first embodiment in the heat sink 6g of the seventh modified example of the first embodiment. The difference is that the gap between the side support portion 64 and the screw fixing portion 65 is eliminated, and the portion corresponding to the screw fixing portion 65 is a part of the instrument side supporting portion 64. The shape of the cover 2g of the seventh modification of the first embodiment is substantially the same as that of the cover 2e of the fifth modification of the first embodiment.

実施の形態１の第７の変形例のヒートシンク６ｇは、器具側支持部６４とねじ固定部６５との間の間隙が無くなっているため、実施の形態１の第５の変形例のヒートシンク６ｅに比べて簡素な形状であり、成形性の向上が見込める。また、出射側支持部６４と器具側支持部６５との間の間隙が無くなることによって、実施の形態１の第６の変形例のヒートシンク６ｆの断面積は、実施の形態１の第５の変形例のヒートシンク６ｅの断面積よりも大きくなる。このため、ヒートシンクの剛性が向上すると同時に熱容量も大きくなるため、実施の形態１の第１の変形例と同様の理由により、実施の形態１の第７の変形例の照明ランプ１ｇは反り、たわみが生じ難くなり、光源４の実装品質（信頼性）が向上する。さらに、実施の形態１の第７の変形例のヒートシンク６ｇのカバー２ｇの内周面との接触面積は、実施の形態１の第５の変形例のヒートシンク６ｅのカバー２ｅの内周面との接触面積よりも広いため、ヒートシンク６ｇからカバー２ｇへの熱伝導性が向上し、照明ランプ１ｇの放熱性能が向上している。 The heatsink 6g of the seventh modified example of the first embodiment has no gap between the device-side support part 64 and the screw fixing part 65, and therefore is the same as the heatsink 6e of the fifth modified example of the first embodiment. It has a simpler shape than the above and can be expected to have improved moldability. Further, since the gap between the emission side support portion 64 and the instrument side support portion 65 is eliminated, the cross-sectional area of the heat sink 6f of the sixth modification of the first embodiment is the same as that of the fifth modification of the first embodiment. It is larger than the cross-sectional area of the heat sink 6e in the example. Therefore, since the rigidity of the heat sink is improved and the heat capacity is also increased, the illumination lamp 1g of the seventh modified example of the first embodiment is warped and bent for the same reason as that of the first modified example of the first embodiment. Is less likely to occur, and the mounting quality (reliability) of the light source 4 is improved. Further, the contact area between the heat sink 6g of the seventh modified example of the first embodiment and the inner peripheral surface of the cover 2g is the same as that of the heat sink 6e of the fifth modified example of the first embodiment. Since it is wider than the contact area, the heat conductivity from the heat sink 6g to the cover 2g is improved, and the heat dissipation performance of the illumination lamp 1g is improved.

実施の形態１の第８の変形例．
図１８は、実施の形態１の第８の変形例に係る照明ランプの断面図である。実施の形態１の第８の変形例の照明ランプ１ｈは、実施の形態１の第５の変形例の照明ランプ１ｅと比べて、実施の形態１の第８の変形例のヒートシンク６ｈには、出射側支持部６３と器具側支持部６４との間の間隙と、器具側支持部６４とねじ固定部６５との間の間隙とが無くなり、出射側支持部６３、器具側支持部６４並びにねじ固定部６５と同様の役割を果たす支持部６７が形成されている点が異なっている。なお、実施の形態１の第８の変形例のカバー２ｈの形状については実施の形態１の第５の変形例のカバー２ｅと略同様である。 Eighth modification of the first embodiment.
FIG. 18 is a cross-sectional view of the illumination lamp according to the eighth modified example of the first embodiment. The illumination lamp 1h of the eighth modification of the first embodiment is different from the illumination lamp 1e of the fifth modification of the first embodiment in the heat sink 6h of the eighth modification of the first embodiment. The gap between the emission side support portion 63 and the instrument side support portion 64 and the gap between the instrument side support portion 64 and the screw fixing portion 65 are eliminated, and the emission side support portion 63, the instrument side support portion 64 and the screw. The difference is that a support portion 67 that plays the same role as the fixed portion 65 is formed. The shape of the cover 2h according to the eighth modification of the first embodiment is substantially the same as that of the cover 2e according to the fifth modification of the first embodiment.

実施の形態１の第８の変形例のヒートシンク６ｇは、出射側支持部６３と器具側支持部６４との間の間隙と、器具側支持部６４とねじ固定部６５との間の間隙とが無くなっているため、実施の形態１の第６の変形例の照明ランプ１ｆ及び実施の形態１の第７の変形例の照明ランプ１ｇと同様の効果を得ることができる。 In the heat sink 6g of the eighth modified example of the first embodiment, a gap between the emitting side support portion 63 and the instrument side support portion 64 and a gap between the instrument side support portion 64 and the screw fixing portion 65 are provided. Since it is eliminated, the same effects as those of the illumination lamp 1f of the sixth modified example of the first embodiment and the illumination lamp 1g of the seventh modified example of the first embodiment can be obtained.

実施の形態１の第９の変形例．
図１９は、実施の形態１の第９の変形例に係る照明ランプの断面図である。実施の形態１の第９の変形例の照明ランプ１ｉは、実施の形態１の第５の変形例の照明ランプ１ｅと比べて、実施の形態１の第９の変形例のヒートシンク６ｉには、器具側支持部６４が形成されていない点が異なっている。なお、実施の形態１の第９の変形例のカバー２ｉの形状については実施の形態１の第５の変形例のカバー２ｅと略同様である。 Ninth modification of the first embodiment.
FIG. 19 is a sectional view of an illumination lamp according to a ninth modification of the first embodiment. The illumination lamp 1i of the ninth modified example of the first embodiment is different from the illumination lamp 1e of the fifth modified example of the first embodiment in the heat sink 6i of the ninth modified example of the first embodiment. The difference is that the device side support portion 64 is not formed. The shape of the cover 2i of the ninth modification of the first embodiment is substantially the same as that of the cover 2e of the fifth modification of the first embodiment.

実施の形態１の第９の変形例のヒートシンク６ｉは、器具側支持部６４が形成されていないため、ヒートシンクが軽くなり、照明ランプ１ｉを軽くすることができる。 In the heat sink 6i of the ninth modified example of the first embodiment, since the instrument side support portion 64 is not formed, the heat sink becomes lighter and the illumination lamp 1i can be lighter.

実施の形態２．
図２０は、実施の形態２に係る照明ランプの斜視図である。図２１は、実施の形態２に係る照明ランプの図２０のＢ−Ｂ断面を示す断面図である。図２２は、実施の形態２に係る照明ランプの側面図である。なお、図２０ではカバー２ｊの内部の説明のため、カバー２ｊの一部を省略している。実施の形態１の照明ランプ１では、円筒部２１は全て第１のカバー材料で形成されていたが、実施の形態２の照明ランプ１ｊでは、カバー２ｊの円筒部２１の一部が第２のカバー材料で構成されている。なお、実施の形態２において、カバー２ｊ以外の構成はそれぞれ実施の形態１と略同様であるため、説明を割愛する。 Embodiment 2.
FIG. 20 is a perspective view of the illumination lamp according to the second embodiment. FIG. 21 is a cross-sectional view showing the BB cross section of FIG. 20 of the illumination lamp according to the second embodiment. FIG. 22 is a side view of the illumination lamp according to the second embodiment. Note that, in FIG. 20, a part of the cover 2j is omitted for explanation of the inside of the cover 2j. In the illumination lamp 1 of the first embodiment, the cylindrical portion 21 is formed entirely of the first cover material, but in the illumination lamp 1j of the second embodiment, a part of the cylindrical portion 21 of the cover 2j is the second cover material. Composed of cover material. In the second embodiment, the configuration other than the cover 2j is substantially the same as that of the first embodiment, and therefore the description thereof is omitted.

実施の形態２におけるカバー２ｊの円筒部２１は、一対の出射側保持突起部２２と、出射側保持突起部２２より出射側に位置する出射側透光部２１ａと、出射側保持突起部２２より器具側に位置する器具側透光部２１ｂとが一体化されて円筒状に形成されている。出射側保持突起部２２のうち円筒部２１の外周面に露出する端面を露出側端面２２ｄとする。また、出射側保持突起部２２の露出側端面２２ｄと反対側の面、つまり先端面２２ｃ側は円筒部２１の内側へ突出している。さらに、一対の器具側保持突起部２３は器具側透光部２１ｂと一体化しており、器具側透光部２１ｂの内周面より突出している。出射側保持突起部２２と器具側保持突起部２３はカバー２ｊの長手方向（矢印Ｘの方向）に平行な中心軸Ｏよりも器具側に位置している。また、出射側保持突起部２２と、器具側保持突起部２３は、カバー２ｊの長手方向全体に渡って延在するように形成されており、カバー２ｊを長手方向に対して垂直に切断した断面の形状は、長手方向の位置によらず常に図２１に示すような断面形状になっている。 The cylindrical portion 21 of the cover 2j in the second embodiment includes a pair of emission side holding protrusions 22, an emission side transparent portion 21a located on the emission side of the emission side holding protrusions 22, and an emission side holding protrusion 22. The device-side translucent part 21b located on the device side is integrally formed into a cylindrical shape. An end surface of the emitting-side holding projection 22 exposed on the outer peripheral surface of the cylindrical portion 21 is referred to as an exposure-side end surface 22d. Further, the surface of the emitting side holding projection 22 opposite to the exposed end surface 22d, that is, the tip surface 22c side projects to the inside of the cylindrical portion 21. Further, the pair of device-side holding projections 23 is integrated with the device-side light transmitting portion 21b, and projects from the inner peripheral surface of the device-side light transmitting portion 21b. The emitting-side holding protrusion 22 and the device-side holding protrusion 23 are located closer to the device than a central axis O parallel to the longitudinal direction of the cover 2j (the direction of arrow X). The emitting-side holding projection 22 and the instrument-side holding projection 23 are formed so as to extend over the entire longitudinal direction of the cover 2j, and a cross section of the cover 2j cut perpendicularly to the longitudinal direction. 21 has a cross-sectional shape as shown in FIG. 21 regardless of the position in the longitudinal direction.

出射側透光部２１ａと、器具側透光部２１ｂと、器具側保持突起部２３は、実施の形態１で説明した第１のカバー材料を用いて形成されている。また、出射側保持突起部２２は、実施の形態１で説明した第２のカバー材料を用いて形成されている。このため、実施の形態２のカバー２ｊの円筒部２１の外周のうち、出射側保持突起部２２の露出側端面２２ｄは第２のカバー材料を用いて形成されており、照明ランプ１の外周には第２のカバー材料で構成された面がある。なお、少なくとも、出射側透光部２１ａは透光性を有する第１のカバー材料から構成されており、本発明の透光部に該当する。 The emission-side light transmitting portion 21a, the device-side light transmitting portion 21b, and the device-side holding protrusion 23 are formed using the first cover material described in the first embodiment. In addition, the emitting side holding protrusion 22 is formed using the second cover material described in the first embodiment. Therefore, of the outer circumference of the cylindrical portion 21 of the cover 2j of the second embodiment, the exposed side end surface 22d of the emitting side holding projection 22 is formed by using the second cover material, and is formed on the outer circumference of the illumination lamp 1. Has a surface composed of a second cover material. It should be noted that at least the light-transmitting-side light-transmitting portion 21a is made of the first light-transmitting cover material and corresponds to the light-transmitting portion of the present invention.

実施の形態２におけるカバー２ｊは、実施の形態１と同様に、例えば二色成形によって製造される。実施の形態２では、出射側透光部２１ａと器具側透光部２１ｂと器具側保持突起部２３を形成する押出機より第１のカバー材料を溶融して押し出し、出射側保持突起部２２を形成する押出機より第２のカバー材料を溶融して押し出し、１基のダイス内で一体化させた後に、冷却固化することによって形成されている。 Like the first embodiment, the cover 2j in the second embodiment is manufactured by, for example, two-color molding. In the second embodiment, the first cover material is melted and extruded from the extruder forming the emitting-side light transmitting portion 21a, the instrument-side light transmitting portion 21b, and the instrument-side holding protruding portion 23, and the emitting-side holding protruding portion 22 is formed. It is formed by melting and extruding the second cover material from the extruder to be formed, integrating it in one die, and then cooling and solidifying.

光源モジュール３は、カバー２ｊの内部に固定された際に、出射側支持部６３が出射側保持突起部２２の器具側平面２２ｂと当接し、器具側支持部６４が器具側透光部２１ｂに沿い、器具側支持部６４の先端が器具側保持突起部２３と係合する位置に固定される。 When the light source module 3 is fixed to the inside of the cover 2j, the emitting side support portion 63 contacts the instrument side flat surface 22b of the emitting side holding projection 22, and the instrument side support portion 64 is attached to the instrument side transparent portion 21b. Along the way, the tip of the device-side support portion 64 is fixed at a position where it engages with the device-side holding protrusion 23.

実施の形態２の照明ランプ１ｊでは、円筒部２１の出射側透光部２１ａは透光性を有しており、出射側保持突起部２２は第１のカバー材料よりも反射率が高い第２のカバー材料で形成されている。このため、実施の形態１の照明ランプ１と同様の理由により、実施の形態２の照明ランプ１ｊは、光源から出射された光を効率的に照明ランプ１ｊの照射光として利用でき、照明ランプ１ｊの発光効率を従来の照明ランプよりも向上させることができる。 In the illumination lamp 1j according to the second embodiment, the emission-side light transmitting portion 21a of the cylindrical portion 21 has a light-transmitting property, and the emission-side holding protrusion 22 has the second reflectance higher than that of the first cover material. It is made of a cover material. Therefore, for the same reason as the illumination lamp 1 of the first embodiment, the illumination lamp 1j of the second embodiment can efficiently use the light emitted from the light source as the irradiation light of the illumination lamp 1j, and the illumination lamp 1j. The luminous efficiency of can be improved as compared with the conventional illumination lamp.

さらに、実施の形態２の照明ランプ１ｊは、出射側保持突起部２２はカバー２ｊの中心軸Ｏよりも器具側に位置しており、照明ランプ１ｊの外周に露出している第２のカバー材料で形成された出射側保持突起部２２の露出側端面２２ｄもカバー２ｊの中心軸Ｏよりも器具側に位置している。また、第２のカバー材料は第１のカバー材料よりも反射率が高く外見が異なるため、照明ランプ１ｊの外周に露出している出射側保持突起部２２の露出側端面２２ｄが照明ランプ１ｊを照明器具１０１に取り付ける際の照明ランプ１ｊの向きを指定する目印となり、使用者は当該目印を活用して照明器具１０１に照明ランプ１ｊを容易に取り付けることができる。 Furthermore, in the illumination lamp 1j of the second embodiment, the emission side holding projection 22 is located closer to the appliance than the central axis O of the cover 2j, and the second cover material exposed on the outer periphery of the illumination lamp 1j. The exposed-side end surface 22d of the emission-side holding projection 22 formed in (4) is also located closer to the device than the central axis O of the cover 2j. Further, since the second cover material has a higher reflectance and a different appearance than the first cover material, the exposed side end surface 22d of the emission side holding projection 22 exposed on the outer periphery of the illumination lamp 1j covers the illumination lamp 1j. It serves as a mark for designating the direction of the illumination lamp 1j when it is attached to the lighting fixture 101, and the user can easily attach the illumination lamp 1j to the lighting fixture 101 by utilizing the mark.

実施の形態３．
図２３は、実施の形態３に係る照明ランプの斜視図である。図２４は、実施の形態３に係る照明ランプの図２３のＣ−Ｃ断面を示す断面図である。図２５は、実施の形態３に係る照明ランプの側面図である。なお、図２３ではカバー２ｋの内部の説明のため、カバー２ｋの一部を省略している。実施の形態２の照明ランプ１ｊでは、器具側透光部２１ｂは第１のカバー材料で形成されていたが、実施の形態３の照明ランプ１ｋでは器具側透光部２１ｂに相当する器具側反射部２７が第２のカバー材料で構成されている。なお、実施の形態３において、カバー２ｋ以外の構成はそれぞれ実施の形態１と略同様であるため、説明を割愛する。 Embodiment 3.
FIG. 23 is a perspective view of the illumination lamp according to the third embodiment. FIG. 24 is a cross-sectional view showing the CC cross section of FIG. 23 of the illumination lamp according to the third embodiment. FIG. 25 is a side view of the illumination lamp according to the third embodiment. Note that, in FIG. 23, a part of the cover 2k is omitted for explanation of the inside of the cover 2k. In the illumination lamp 1j of the second embodiment, the instrument-side translucent portion 21b is formed of the first cover material, but in the illumination lamp 1k of the third embodiment, the instrument-side transmissive portion 21b corresponding to the instrument-side transmissive portion 21b. Portion 27 is composed of a second cover material. In the third embodiment, the configuration other than the cover 2k is substantially the same as that of the first embodiment, and therefore the description thereof is omitted.

実施の形態３のカバー２ｋは、出射側透光部２１ａと、器具側反射部２７とによって略筒状に形成されている。また、器具側反射部２７のうち、出射側透光部２１ａと接する２箇所には器具側反射部２７の内周面からそれぞれ出射側保持突起部２２が突出し、出射側保持突起部２２よりも器具側に位置する箇所からは器具側反射部２７の内周面から一対の器具側保持突起部２３が突出している。また、出射側保持突起部２２と、器具側保持突起部２３は、カバー２ｋの長手方向（矢印Ｘの方向）全体に渡って延在するように形成されており、カバー２ｋを長手方向に対して垂直に切断した断面の形状は、長手方向の位置によらず常に図２３に示すような形状になっている。 The cover 2k according to the third embodiment is formed in a substantially tubular shape by the emitting side light transmitting portion 21a and the device side reflecting portion 27. In addition, in the device-side reflection portion 27, the emission-side holding protrusions 22 project from the inner peripheral surface of the device-side reflection portion 27 at two locations in contact with the emission-side translucent portion 21a, and A pair of device-side holding projections 23 project from the inner peripheral surface of the device-side reflecting portion 27 from a location located on the device side. In addition, the emission-side holding protrusion 22 and the instrument-side holding protrusion 23 are formed so as to extend over the entire longitudinal direction (direction of arrow X) of the cover 2k, and the cover 2k with respect to the longitudinal direction. The shape of the cross section cut perpendicularly by the vertical direction is always the shape shown in FIG. 23 regardless of the position in the longitudinal direction.

出射側透光部２１ａは、実施の形態１で説明した第１のカバー材料を用いて形成されている。また、器具側反射部２７と、出射側保持突起部２２と、器具側保持突起部２３とは、実施の形態１で説明した第２のカバー材料を用いて形成されている。このため、実施の形態３の照明ランプ１ｋでは、カバー２ｋの外周に第２のカバー材料で形成された面が露出している。なお、少なくとも、出射側透光部２１ａは透光性を有する第１のカバー材料から構成されているため、本発明の透光部に該当する。 The emission-side light transmitting portion 21a is formed using the first cover material described in the first embodiment. In addition, the device-side reflection portion 27, the emission-side holding protrusion portion 22, and the device-side holding protrusion portion 23 are formed using the second cover material described in the first embodiment. Therefore, in the illumination lamp 1k of the third embodiment, the surface formed of the second cover material is exposed on the outer periphery of the cover 2k. At least the light-transmitting-side light transmitting portion 21a is made of the first light-transmitting cover material, and thus corresponds to the light transmitting portion of the present invention.

実施の形態３のカバー２ｋも、実施の形態１と同様に、例えば二色成形によって製造される。実施の形態３では、出射側透光部２１ａを形成する押出機より第１のカバー材料を溶融して押し出し、器具側反射部２７と出射側保持突起部２２と器具側保持突起部２３とを形成する押出機より第２のカバー材料を溶融して押し出し、１基のダイス内で一体化させた後に、冷却固化することによって形成している。 Like the first embodiment, the cover 2k of the third embodiment is also manufactured by, for example, two-color molding. In the third embodiment, the first cover material is melted and extruded from the extruder that forms the light-transmitting-side transmissive portion 21a, and the device-side reflecting portion 27, the light-emitting-side holding projection 22 and the equipment-side holding projection 23 are separated from each other. The second cover material is melted and extruded from the extruder to be formed, integrated in one die, and then solidified by cooling.

光源モジュール３は、カバー２ｋの内部に固定された際に、出射側支持部６３が出射側保持突起部２２の器具側平面２２ｂと当接し、器具側支持部６４が器具側反射部２７に沿い、器具側支持部６４の先端が器具側保持突起部２３と係合する位置に固定される。 When the light source module 3 is fixed to the inside of the cover 2k, the emission side support portion 63 contacts the instrument side flat surface 22b of the emission side holding projection 22, and the instrument side support portion 64 extends along the instrument side reflection portion 27. The tip of the device-side support portion 64 is fixed at a position where it engages with the device-side holding protrusion 23.

実施の形態３の照明ランプ１ｋは、出射側透光部２１ａは透光性を有しており、出射側保持突起部２２は第１のカバー材料よりも反射率が高い第２のカバー材料で形成されている。このため、実施の形態１の照明ランプ１と同様の理由により、実施の形態３の照明ランプ１ｋは、光源から出射された光を効率的に照明ランプ１ｋの照射光として利用でき、照明ランプ１ｋの発光効率を従来の照明ランプよりも向上させることができる。 In the illumination lamp 1k according to the third embodiment, the light-transmitting-side transmissive portion 21a has a light-transmitting property, and the light-emitting-side holding protrusion 22 is a second cover material having a higher reflectance than the first cover material. Has been formed. Therefore, for the same reason as the illumination lamp 1 of the first embodiment, the illumination lamp 1k of the third embodiment can efficiently use the light emitted from the light source as the irradiation light of the illumination lamp 1k, and the illumination lamp 1k. The luminous efficiency of can be improved as compared with the conventional illumination lamp.

また、実施の形態３の照明ランプ１ｋは器具側反射部２７が第２のカバー材料で形成されているため、出射側透光部２１ａと器具側反射部２７との外見が異なり、器具側反射部２７が照明ランプ１ｋを照明器具１０１に取り付ける際の照明ランプ１ｋの向きを指定する目印となり、使用者が当該目印を活用して照明器具１０１に照明ランプ１ｋを容易に取り付けることができる。 Further, in the illumination lamp 1k of the third embodiment, since the device-side reflection portion 27 is formed of the second cover material, the appearances of the emission-side translucent portion 21a and the device-side reflection portion 27 are different, and the device-side reflection portion The portion 27 serves as a mark for designating the direction of the illumination lamp 1k when the illumination lamp 1k is attached to the illumination fixture 101, and the user can easily attach the illumination lamp 1k to the illumination fixture 101 by utilizing the mark.

さらに、器具側反射部２７と出射側保持突起部２２と器具側保持突起部２３とを形成する第２のカバー材料は透光性を備える必要が無いため、反射率を向上させる材料以外にも他の物性を向上させるような材料を混合しても良い。特に熱伝導性フィラー等の熱伝導率を向上させる材料を混合し、器具側反射部２７の熱伝導率を向上させることによって、ヒートシンク６からカバー２ｋへの熱伝導性が向上し、照明ランプの放熱性能が向上する。 Furthermore, since the second cover material forming the device-side reflection portion 27, the emission-side holding protrusion portion 22, and the device-side holding protrusion portion 23 does not need to have a light-transmitting property, a material other than a material for improving reflectance is used. Other materials that improve the physical properties may be mixed. In particular, a material that improves the thermal conductivity such as a thermally conductive filler is mixed to improve the thermal conductivity of the instrument-side reflecting portion 27, so that the thermal conductivity from the heat sink 6 to the cover 2k is improved and the lighting lamp The heat dissipation performance is improved.

また、第２のカバー材料が透光性を備えない場合では、器具側反射部２７の外周部に製品を識別する文字や図形等を表示してもよい。器具側反射部２７が透光性を備えない第２のカバー材料で形成されている場合では、器具側反射部２７が透光性を有する場合よりも、外周部に表示した文字や図形の視認性が向上する効果を奏する。 In addition, when the second cover material does not have a light-transmitting property, characters or figures for identifying the product may be displayed on the outer peripheral portion of the appliance-side reflecting portion 27. In the case where the device-side reflective portion 27 is formed of the second cover material that does not have a light-transmitting property, the characters and figures displayed on the outer peripheral portion are more visible than when the device-side reflective portion 27 has a light-transmitting property. The effect that the property is improved is exhibited.

実施の形態４．
図２６は、実施の形態４に係る照明ランプの断面図である。図２７は、実施の形態４に係る照明ランプの側面図である。図２８は、実施の形態４に係るカバーの一方の端部（矢印Ｘの基点側）からの斜視図である。図２９は、実施の形態４に係るカバーの他方の端部（矢印Ｘの先端側）からの斜視図である。実施の形態１の照明ランプ１の出射側保持突起部２２の出射側平面２２ａと器具側平面２２ｂは略平行であったが、実施の形態４の照明ランプ１ｌの出射側保持突起部２２はカバー２ｌの内周面に近づくにつれて出射側保持突起部２２の厚みが増加するように出射側平面２２ａが器具側平面２２ｂに対して傾斜している。なお、出射側保持突起部２２以外の構成はそれぞれ実施の形態１と略同様であるため、説明を割愛する。 Fourth Embodiment
FIG. 26 is a sectional view of the illumination lamp according to the fourth embodiment. FIG. 27 is a side view of the illumination lamp according to the fourth embodiment. FIG. 28 is a perspective view of the cover according to Embodiment 4 as viewed from one end (on the side of the base point of arrow X). FIG. 29 is a perspective view from the other end (the tip side of arrow X) of the cover according to the fourth embodiment. Although the emission-side flat surface 22a of the emission-side holding projection 22 of the illumination lamp 1 of the first embodiment is substantially parallel to the appliance-side flat surface 22b, the emission-side holding projection 22 of the illumination lamp 1l of the fourth embodiment is covered. The emission-side flat surface 22a is inclined with respect to the instrument-side flat surface 22b so that the thickness of the emission-side holding projection 22 increases as it approaches the inner peripheral surface of 2l. The configuration other than the emission-side holding projection 22 is substantially the same as that of the first embodiment, and thus the description thereof is omitted.

実施の形態４の出射側保持突起部２２は、出射側平面２２ａが器具側平面２２ｂに対して角度θ傾斜し、先端面２２ｃに向かうほど出射側保持突起部２２の厚みが薄くなるように形成されている。また、出射側保持突起部２２の先端面２２ｃと出射側平面２２ａとで形成される角部は、カバー２の内部に光源モジュール３を固定した際に、後述する光源４の出射側の面よりも器具側に位置するように形成されている。さらに、実施の形態４では角度θは約１５度である。また、出射側保持突起部２２と器具側保持突起部２３は、カバー２ｌの長手方向（矢印Ｘの方向）全体に渡って延在するように形成されており、カバー２ｌを長手方向に対して垂直に切断した断面の形状は、長手方向の位置によらず常に図２３に示すような形状になっている。 The emission-side holding protrusion 22 of the fourth embodiment is formed such that the emission-side flat face 22a is inclined by an angle θ with respect to the instrument-side flat face 22b, and the emission-side holding protrusion 22 becomes thinner toward the tip face 22c. Has been done. Further, the corner portion formed by the tip end surface 22c of the emission side holding projection 22 and the emission side flat surface 22a is closer to the emission side surface of the light source 4 described later when the light source module 3 is fixed inside the cover 2. Is also formed so as to be located on the instrument side. Further, in the fourth embodiment, the angle θ is about 15 degrees. The emitting-side holding projection 22 and the instrument-side holding projection 23 are formed so as to extend over the entire longitudinal direction of the cover 2l (direction of arrow X), and the cover 2l with respect to the longitudinal direction. The shape of the cross section cut vertically is always the shape shown in FIG. 23 regardless of the position in the longitudinal direction.

実施の形態４の照明ランプ１ｌの出射側保持突起部２２は第１のカバー材料よりも反射率が高い第２のカバー材料で形成されている。このため、実施の形態１の照明ランプ１と同様の理由により、実施の形態４の照明ランプ１ｌは、光源から出射された光を効率的に照明ランプ１ｌの照射光として利用でき、照明ランプ１ｌの発光効率を従来の照明ランプよりも向上させることができる。 The emission-side holding protrusion 22 of the illumination lamp 11 according to the fourth embodiment is formed of the second cover material having a higher reflectance than the first cover material. Therefore, for the same reason as the illumination lamp 1 of the first embodiment, the illumination lamp 1l of the fourth embodiment can efficiently use the light emitted from the light source as the irradiation light of the illumination lamp 1l, and the illumination lamp 1l. The luminous efficiency of can be improved as compared with the conventional illumination lamp.

また、実施の形態１で示したように光源４より出射する光は、発光面に垂直な軸に対して対称に照射角αだけ広がるため、照明ランプ１から照射される光のうち光源４の照射角αの範囲外から照射される光は、基板５、ヒートシンク６、円筒部２１又は出射側保持突起部２２で反射された反射光である。また、一般的な物体の反射率は必ず１未満であるため、光は反射するたびにその光束が減少する。さらに、照射角αの範囲から遠ざかるほど照射光に含まれる反射回数が多い光の割合が増える。このため、照射角αの範囲から出射側保持突起部２２の出射側平面２２ａまでの区間βでは、出射側保持突起部２２に近づくほど照射する光束の量が減少し、照射角αの範囲から照射する光束との差も広がる。この際に、区間β内の任意の箇所の光束と照射角αの範囲から照射する光束との差がある程度以上に広がってしまうと、使用者は当該箇所を薄暗いと感じ、照明ランプ１の明るさにむらがあると感じてしまう。特に照明ランプ１では、出射側保持突起部２２とヒートシンク６によって光が照射されない箇所があるため、薄暗いと感じる箇所がより目立ってしまう。 Further, as described in the first embodiment, the light emitted from the light source 4 spreads symmetrically with respect to the axis perpendicular to the light emitting surface by the irradiation angle α. The light emitted from outside the range of the irradiation angle α is the reflected light reflected by the substrate 5, the heat sink 6, the cylindrical portion 21, or the emitting side holding protrusion 22. Further, since the reflectance of a general object is always less than 1, the luminous flux of the light decreases each time it is reflected. Further, as the distance from the range of the irradiation angle α increases, the proportion of the light included in the irradiation light that has a large number of reflections increases. For this reason, in the section β from the range of the irradiation angle α to the emission-side flat surface 22a of the emission-side holding protrusion 22, the amount of the light flux to be irradiated decreases toward the emission-side holding protrusion 22, and the irradiation angle α falls within the range. The difference from the illuminating light flux also widens. At this time, if the difference between the luminous flux at an arbitrary position within the section β and the luminous flux emitted from the range of the irradiation angle α widens to a certain extent or more, the user feels that the position is dim and the brightness of the illumination lamp 1 is high. I feel that there is unevenness. In particular, in the illumination lamp 1, since there is a portion where light is not irradiated by the emission side holding protrusion 22 and the heat sink 6, a portion that feels dim becomes more conspicuous.

しかしながら、実施の形態４の照明ランプ１ｌは、出射側保持突起部２２が先端面２２ｃに向かうほど出射側保持突起部２２の厚みが薄くなるように形成されているため、実施の形態１の照明ランプ１のように出射側保持突起部２２の厚みが均一な場合に比べて、区間βを狭くすることができ、使用者が薄暗いと感じる箇所を無くし、使用者が明るさにむらがあると感じてしまうことを防ぐことができる。 However, in the illumination lamp 11 according to the fourth embodiment, the emission-side holding projection 22 is formed such that the thickness of the emission-side holding projection 22 decreases toward the tip surface 22c. Compared to the case where the thickness of the emission side holding projection 22 is uniform as in the lamp 1, the section β can be made narrower, and the user does not have a place where the user feels dim, and the user has uneven brightness. You can prevent it from feeling.

また、実施の形態４の照明ランプ１ｌは、実施の形態１の照明ランプ１に比べて、出射側保持突起部２２と円筒部２１の内周面とが接している面積が広いため、保持突起部２２の強度が増す。 Further, since the illumination lamp 1l of the fourth embodiment has a wider area in which the emitting side holding projection 22 and the inner peripheral surface of the cylindrical portion 21 are in contact with each other than the lighting lamp 1 of the first embodiment, the holding projection is large. The strength of the portion 22 increases.

なお、実施の形態４では、角度θは約１５度に設定しているが、使用者が薄暗いと感じる箇所は光源モジュール３の出射側空間２５に面する面の形状や使用者の感覚に依存するため、角度θは１５度に限らず任意の角度でよい。ただし、前述の通り光源４の照射角αの範囲外のみに使用者が薄暗いと感じる領域は形成され、出射側保持突起部２２が光源４の照射角αの範囲内に入ってしまうと照明ランプ１ｌの照射角が光源４の照射角よりも小さくなってしまうため、角度θは出射側保持突起部２２が照射角αの範囲内に入ってしまうような角度には設定しない方が望ましい。具体的には、角度θはθ＝９０−（α／２）度以下に設定されることが望ましく、例えば照射角αが１２０度の場合には、角度θは３０度以下に設定されることが望ましい。 In the fourth embodiment, the angle θ is set to about 15 degrees, but the place where the user feels dim depends on the shape of the surface of the light source module 3 which faces the emission side space 25 and the sense of the user. Therefore, the angle θ is not limited to 15 degrees and may be any angle. However, as described above, a region where the user feels dim is formed only outside the irradiation angle α of the light source 4, and if the emission side holding projection 22 falls within the irradiation angle α of the light source 4, the illumination lamp is illuminated. Since the irradiation angle of 1 l becomes smaller than the irradiation angle of the light source 4, it is desirable that the angle θ is not set to an angle such that the emitting side holding projection 22 falls within the irradiation angle α. Specifically, it is desirable that the angle θ be set to θ=90−(α/2) degrees or less. For example, when the irradiation angle α is 120 degrees, the angle θ is set to 30 degrees or less. Is desirable.

図３０は、実施の形態４の第１の変形例に係る照明ランプの断面図である。また、実施の形態４の第１の変形例の照明ランプ１ｍのように、実施の形態４のカバー２ｌの出射側保持突起部２２を器具側に寄った位置に形成し、器具側保持突起部２３を形成していないカバー２ｍと、実施の形態１の第５の変形例のヒートシンク６ｅと同様の形状のヒートシンク６ｍを用いても構わない。なお、実施の形態４の第２の変形例において、カバー２ｍ及びカバー６ｍ以外の構成については、実施の形態１と略同様であるため説明を割愛する。 FIG. 30 is a sectional view of an illumination lamp according to a first modified example of the fourth embodiment. Further, like the illumination lamp 1m of the first modified example of the fourth embodiment, the emission side holding projection 22 of the cover 2l of the fourth embodiment is formed at a position closer to the device side, and the device side holding projection is formed. You may use the cover 2m which does not form 23, and the heat sink 6m of the same shape as the heat sink 6e of the 5th modification of Embodiment 1. In addition, in the second modification of the fourth embodiment, the configuration other than the cover 2m and the cover 6m is substantially the same as that of the first embodiment, and thus the description thereof is omitted.

図３１は、実施の形態４の第２の変形例に係る照明ランプの断面図である。図３２は、実施の形態４の第２の変形例に係るカバーの一方の端部（矢印Ｘの基点側）からの斜視図である。図３３は、実施の形態４の第２の変形例に係るカバーの他方の端部（矢印Ｘの先端側）からの斜視図である。さらに、実施の形態４の第２の変形例の照明ランプ１ｎのように、第２出射側保持突起部２８を円筒部２１の内周面より立設させても構わない。なお、実施の形態４の第２の変形例のヒートシンク６ｎは、実施の形態１の第５の変形例のヒートシンク６ｅと同様の形状であり、カバー２ｎ以外の構成については実施の形態４の第１の変形例と同様であるため説明を割愛する。 FIG. 31 is a sectional view of an illumination lamp according to a second modification of the fourth embodiment. FIG. 32 is a perspective view of the cover according to the second modified example of the fourth embodiment from one end (on the side of the base point of arrow X). FIG. 33 is a perspective view of the cover according to the second modification of the fourth embodiment from the other end (on the side of the tip of arrow X). Further, as in the illumination lamp 1n according to the second modified example of the fourth embodiment, the second emission side holding protrusion 28 may be provided upright from the inner peripheral surface of the cylindrical portion 21. The heatsink 6n of the second modification of the fourth embodiment has the same shape as the heatsink 6e of the fifth modification of the first embodiment, and the configuration other than the cover 2n is the same as that of the fourth embodiment. Since it is the same as the modified example of 1, the description is omitted.

第２出射側保持突起部２８は、出射側保持突起部２２よりも器具側の位置から円筒部２１の内周面より突出している。また、第２出射側保持突起部２８の出射側の面と器具側平面は略平行である。さらに、第２出射側保持突起部２８は第１のカバー材料で形成されている。 The second emitting-side holding protrusion 28 projects from the inner peripheral surface of the cylindrical portion 21 from a position closer to the device than the emitting-side holding protrusion 22. Further, the surface of the second emission side holding projection 28 on the emission side and the plane on the instrument side are substantially parallel to each other. Further, the second emission side holding protrusion 28 is formed of the first cover material.

ヒートシンク６ｎをカバー２ｎの内部に固定した際に、第２出射側保持突起部２８は出射側支持部６３と器具側支持部６４の間の間隙に位置し、第２出射側保持突起部２８の出射側の面は出射側支持部６３と、器具側平面は器具側支持部６４とそれぞれ当接する。このため、カバーとヒートシンクの係合がより強固になる。 When the heat sink 6n is fixed inside the cover 2n, the second emitting-side holding protrusion 28 is located in the gap between the emitting-side supporting portion 63 and the instrument-side supporting portion 64, and the second emitting-side holding protrusion 28 is The emission side surface is in contact with the emission side support portion 63, and the instrument side plane is in contact with the instrument side support portion 64, respectively. Therefore, the engagement between the cover and the heat sink becomes stronger.

実施の形態５．
図３４は、実施の形態５に係る照明ランプの断面図である。実施の形態１の照明ランプ１のカバー２は円筒形であり、ヒートシンク６はカバー２の内部に収納されていたが、実施の形態５の照明ランプ１ｏは、カバー２ｏの器具側には開口が形成されており、ヒートシンク６ｏの一部がカバー２ｏの外部に露出している。なお、カバー２ｏ及びヒートシンク６ｏ以外の構成はそれぞれ実施の形態１と略同様であるため説明を割愛する。 Embodiment 5.
FIG. 34 is a sectional view of the illumination lamp according to the fifth embodiment. The cover 2 of the illumination lamp 1 according to the first embodiment has a cylindrical shape, and the heat sink 6 is housed inside the cover 2, but the illumination lamp 1o according to the fifth embodiment has an opening on the device side of the cover 2o. It is formed, and a part of the heat sink 6o is exposed to the outside of the cover 2o. The configurations other than the cover 2o and the heat sink 6o are substantially the same as those in the first embodiment, and therefore the description thereof is omitted.

カバー２ｏは、器具側に開口が形成され光源モジュール３の出射側を円弧形状の円弧部２９と、円弧部２９の内周面から突出する一対の出射側保持突起部２２と、円弧部２９の両端部から出射側保持突起部２２と平行に延びる一対の第２出射側保持突起部２８とから構成されている。円弧部２９と、一対の出射側保持突起部２２と、一対の第２出射側保持突起部２８とが一体化されて、カバー２ｏの長手方向（矢印Ｘの方向）全体に渡って延在するように形成されている。 The cover 2o has an arc-shaped arc portion 29 having an opening on the instrument side and an arc shape on the emission side of the light source module 3, a pair of emission-side holding projections 22 protruding from the inner peripheral surface of the arc portion 29, and the arc portion 29. It is composed of a pair of second emission side holding projections 28 extending from both ends in parallel with the emission side holding projections 22. The arc portion 29, the pair of emission side holding protrusions 22, and the pair of second emission side holding protrusions 28 are integrated and extend over the entire longitudinal direction (direction of arrow X) of the cover 2o. Is formed.

円弧部２９と第２出射側保持突起部２８とは、実施の形態１で説明した第１のカバー材料で形成されている。また、出射側保持突起部２２は実施の形態１で説明した第２のカバー材料で形成されている。実施の形態５のカバー２ｏも、実施の形態１と同様に、例えば二色成形によって製造され、円弧部２９と第２出射側保持突起部２８とを形成する押出機より第１のカバー材料を溶融して押し出し、出射側保持突起部２２を形成する押出機より第２のカバー材料を溶融して押し出し、１基のダイス内で一体化させた後に、冷却固化させて形成している。なお、少なくとも、円弧部２９は透光性を有する第１のカバー材料から構成されているため、本発明の透光部に該当する。 The arcuate portion 29 and the second emission side holding projection portion 28 are formed of the first cover material described in the first embodiment. In addition, the emission side holding protrusion 22 is formed of the second cover material described in the first embodiment. Similarly to the first embodiment, the cover 2o of the fifth embodiment is manufactured by, for example, two-color molding, and the first cover material is formed by an extruder that forms the arc portion 29 and the second emission side holding protrusion portion 28. The second cover material is melted and extruded, and is extruded from an extruder that forms the emission-side holding projection 22. The second cover material is melted and extruded and integrated in one die, and then cooled and solidified. At least the arc portion 29 is made of the first cover material having a light-transmitting property, and thus corresponds to the light-transmitting portion of the present invention.

ヒートシンク６ｏは、器具側支持部６４以外は、実施の形態１のヒートシンク６と略同様の形状である。器具側支持部６４は円弧形状であり、一対の出射側支持部６３とのそれぞれの間に間隙が形成されている。光源設置部６１と、一対の側壁部６２と、一対の出射側支持部６３と、器具側支持部６４と、一対のねじ固定部６５とが一体化されて、ヒートシンク６の長手方向（矢印Ｘの方向）全体に渡って延在するように形成されている。 The heat sink 6o has substantially the same shape as that of the heat sink 6 of the first embodiment, except for the device-side support portion 64. The device-side support portion 64 has an arc shape, and a gap is formed between each of the pair of emission-side support portions 63. The light source installation part 61, the pair of side wall parts 62, the pair of emission side support parts 63, the instrument side support part 64, and the pair of screw fixing parts 65 are integrated, and the longitudinal direction of the heat sink 6 (arrow X Direction) is formed so as to extend over the whole.

光源モジュール３をカバー２ｏの内部に固定した際に、ヒートシンク６ｏの器具側支持部６４はカバー２ｏの器具側の開口を覆うように固定され、照明ランプ１ｏの外周に露出している。また、カバー２ｏの出射側保持突起部２２の器具側平面２２ｂは出射側支持部６３と当接する。さらに、第２出射側保持突起部２８は出射側支持部６３と器具側支持部６４の間の間隙に位置し、第２出射側保持突起部２８の出射側の面は出射側支持部６３と当接し、器具側平面は器具側支持部６４と当接する。 When the light source module 3 is fixed inside the cover 2o, the device-side support portion 64 of the heat sink 6o is fixed so as to cover the device-side opening of the cover 2o and is exposed to the outer periphery of the illumination lamp 1o. Further, the instrument-side flat surface 22b of the emission-side holding projection 22 of the cover 2o contacts the emission-side support portion 63. Further, the second emission side holding projection 28 is located in the gap between the emission side support portion 63 and the instrument side support portion 64, and the emission side surface of the second emission side holding projection 28 and the emission side support portion 63. The device-side plane contacts the device-side support portion 64.

実施の形態５の照明ランプ１ｏの出射側保持突起部２２は第１のカバー材料よりも反射率が高い第２のカバー材料で形成されている。このため、実施の形態１の照明ランプ１と同様の理由により、実施の形態５の照明ランプ１ｏは、光源から出射された光を効率的に照明ランプ１ｏの照射光として利用でき、照明ランプ１ｏの発光効率を従来の照明ランプよりも向上させることができる。 The emission side holding protrusion 22 of the illumination lamp 1o of the fifth embodiment is formed of the second cover material having a higher reflectance than the first cover material. Therefore, for the same reason as the illumination lamp 1 of the first embodiment, the illumination lamp 1o of the fifth embodiment can efficiently use the light emitted from the light source as the irradiation light of the illumination lamp 1o, and the illumination lamp 1o. The luminous efficiency of can be improved as compared with the conventional illumination lamp.

また、実施の形態５の照明ランプ１ｏはヒートシンク６ｏが照明ランプ１ｏの外周に露出しているため、ヒートシンク６ｏから直接照明ランプ１ｏの外部に放熱することができるため、照明ランプの放熱性能が向上する。 Further, in the illumination lamp 1o of the fifth embodiment, since the heat sink 6o is exposed on the outer periphery of the illumination lamp 1o, it is possible to radiate heat directly from the heat sink 6o to the outside of the illumination lamp 1o, so that the heat dissipation performance of the illumination lamp is improved. To do.

実施の形態６．
図３５は、実施の形態６に係る照明ランプの断面図である。実施の形態１の照明ランプ１のカバー２の出射側保持突起部２２は第２のカバー材料で形成されていたが、実施の形態６の照明ランプ１ｐのカバー２ｐの出射側保持突起部２２は第１のカバー材料で形成されており、出射側保持突起部２２の出射側平面２２ａと先端面２２ｃには、高反射層２２ｅが形成されている。なお、出射側保持突起部２２以外の構成はそれぞれ実施の形態１と略同様であるため説明を割愛する。 Sixth embodiment.
FIG. 35 is a sectional view of the illumination lamp according to the sixth embodiment. Although the emission side holding protrusion 22 of the cover 2 of the illumination lamp 1 of the first embodiment is formed of the second cover material, the emission side holding protrusion 22 of the cover 2p of the illumination lamp 1p of the sixth embodiment is different. It is made of the first cover material, and the high reflection layer 22e is formed on the emission side flat surface 22a and the tip end surface 22c of the emission side holding projection 22. The configurations other than the emission-side holding protrusion 22 are substantially the same as those in the first embodiment, and therefore the description thereof is omitted.

高反射層２２ｅは、第１のカバー材料よりも反射率の高い物質で形成されている。高反射層２２ｅの形成方法としては、例えばシート状に形成された高反射部材を敷設する方法や高反射率の溶融樹脂を塗布して乾燥固化させる方法などを用いることができる。 The high reflection layer 22e is formed of a substance having a reflectance higher than that of the first cover material. As a method of forming the high reflection layer 22e, for example, a method of laying a sheet-like high reflection member or a method of applying a molten resin having a high reflectance and drying and solidifying it can be used.

実施の形態６の照明ランプ１ｐの出射側保持突起部２２の出射側平面２２ａには第１のカバー材料よりも反射率が高い高反射層２２ｅが形成されている。このため、実施の形態１の照明ランプ１と同様の理由により、実施の形態６の照明ランプ１ｐは、光源から出射された光を効率的に照明ランプ１ｐの照射光として利用でき、照明ランプ１ｐの発光効率を従来の照明ランプよりも向上させることができる。 A highly reflective layer 22e having a higher reflectance than that of the first cover material is formed on the emission side flat surface 22a of the emission side holding projection 22 of the illumination lamp 1p of the sixth embodiment. Therefore, for the same reason as the illumination lamp 1 of the first embodiment, the illumination lamp 1p of the sixth embodiment can efficiently use the light emitted from the light source as the irradiation light of the illumination lamp 1p, and the illumination lamp 1p. The luminous efficiency of can be improved as compared with the conventional illumination lamp.

また、実施の形態６の出射側保持突起部２２は第１のカバー材料で構成されている。このため、カバー２ｐは従来のカバーの出射側保持突起部２２の出射側平面２２ａと先端面２２ｃに高反射層２２ｅを形成するだけで作成することができ、従来のカバーを製造する設備を利用して製造することができる。 Further, the emission side holding projection 22 of the sixth embodiment is made of the first cover material. Therefore, the cover 2p can be created by only forming the high reflection layer 22e on the emission side flat surface 22a and the tip end surface 22c of the emission side holding protrusion 22 of the conventional cover, and the conventional equipment for manufacturing the cover is used. Can be manufactured.

上記の実施の形態および変形例では、口金の形状がＪＥＬ８０１に基づく直管ランプについて説明したが、例えば、口金の形状がＪＥＬ８０２に基づく直管ランプ、その他の直管ＬＥＤでも、本実施の形態を適用することができる。また、その他の形状の口金であっても本実施の形態を適用することができる。 In the above-described embodiments and modified examples, the straight tube lamp based on JEL801 is described as the base shape. However, for example, a straight tube lamp based on JEL802 based on the base shape and other straight tube LEDs may be used. Can be applied. Further, the present embodiment can be applied to a die having another shape.

以上、実施の形態および変形例を説明したが、これらの実施の形態および変形例のうち、２以上を組み合わせて実施してもよい。あるいは、これらの実施の形態および変形例のうち、１つを部分的に実施してもよい。或いは、これらの実施の形態および変形例のうち、２つ以上を部分的に組み合わせて実施してもよい。なお、本発明はこれらの実施の形態および変形例に限定されるものではなく、必要に応じて種々の変形が可能である。 Although the embodiments and modifications have been described above, two or more of these embodiments and modifications may be combined and implemented. Alternatively, one of these embodiments and modifications may be partially implemented. Alternatively, two or more of these embodiments and modifications may be partially combined and implemented. The present invention is not limited to these embodiments and modified examples, and various modifications can be made if necessary.

１ 照明ランプ、１ａ〜１ｐ 照明ランプ、２ カバー、２ａ〜２ｐ カバー、３ 光源モジュール、４ 光源、５ 基板、６ ヒートシンク、６ａ〜６ｐ ヒートシンク、７ 保持口金、８ 給電口金、９ ねじ、２１ 円筒部、２１ａ 出射側透光部、２１ｂ 器具側透光部、２２ 出射側保持突起部、２２ａ 出射側平面、２２ｂ 器具側平面、２２ｃ 先端面、２２ｄ 露出側端面、２２ｅ 高反射層、２３ 器具側保持突起部、２４ カバー内空間、２５ 出射側空間、２６ 器具側空間、２７ 器具側反射部、２８ 第２出射側保持突起部、２９ 円弧部、６１ 光源設置部、６２ 側壁部、６３ 出射側支持部、６４ 器具側支持部、６５ ねじ固定部、６６ ねじ孔、６７ 支持部、７１ 保持口金筐体、７２ 保持端子、７３ ねじ孔、８１ 給電口金筐体、８２ 給電端子、８３ ねじ孔、１００ 照明装置、１０１ 照明器具、１０２ 器具本体、１０３ 保持ソケット、１０４ 給電ソケット、１０５ 電源ボックス。 1 illumination lamp, 1a to 1p illumination lamp, 2 cover, 2a to 2p cover, 3 light source module, 4 light source, 5 substrate, 6 heat sink, 6a to 6p heat sink, 7 holding base, 8 power supply base, 9 screw, 21 cylindrical part , 21a Light-emitting side transmissive part, 21b Device-side light-transmitting part, 22 Emission-side holding projection, 22a Emission-side plane, 22b Device-side plane, 22c Tip surface, 22d Exposed-side end surface, 22e High-reflecting layer, 23 Device-side holding Protrusions, 24 Cover space, 25 Emission side space, 26 Instrument side space, 27 Instrument side reflecting section, 28 Second emission side holding protrusion, 29 Arc section, 61 Light source installation section, 62 Side wall section, 63 Emission side support Part, 64 instrument side support part, 65 screw fixing part, 66 screw hole, 67 support part, 71 holding cap housing, 72 holding terminal, 73 screw hole, 81 power supply cap housing, 82 power supply terminal, 83 screw hole, 100 Lighting device, 101 lighting fixture, 102 fixture main body, 103 holding socket, 104 power feeding socket, 105 power supply box.

Claims (4)

長尺形状であり、長手方向に対して平行な面に光源が配置された光源モジュールと、
透光性を有する樹脂である第１のカバー材料を用いて、前記光源モジュールの表面のうち前記光源の光が出射される出射側の表面を覆うように形成された長尺の透光部と、
前記透光部と一体化されており、前記第１のカバー材料よりも反射率が高い材料が混合された樹脂である第２のカバー材料を用いて形成されており、前記光源が配置された面を基準とした前記出射側と反対側に先端が配置され、前記出射側の面と反対側の面が前記光源モジュールと対向するとともに前記先端に向かうほど厚みが薄くなるように前記出射側の面が前記反対側の面に対して傾斜している保持突起部と、
を備え、
前記反対側の面は、
前記光源が配置された面を基準とした前記出射側と反対側において、
前記光源モジュールの前記光源が配置された面に沿って、前記透光部の内周面から前記光源モジュールに向かって張り出すように形成されていると共に、前記光源モジュールの短手方向における前記光源モジュールの端部に当接して前記光源モジュールを保持する照明装置。 A light source module having a long shape and a light source arranged on a plane parallel to the longitudinal direction,
A long light-transmitting portion formed using the first cover material, which is a light-transmitting resin, so as to cover the surface of the light source module on the emission side from which the light of the light source is emitted. ,
It is formed by using a second cover material that is a resin that is integrated with the light-transmitting portion and that is mixed with a material having a higher reflectance than the first cover material, and the light source is arranged. is disposed distal to the side opposite to the exit side relative to the surface, said emission side as a surface opposite to the surface of the emission side becomes thinner thickness increases toward the distal end with facing the light source module A holding protrusion whose surface is inclined with respect to the opposite surface;
Equipped with
The opposite surface is
In the outgoing side and the opposition side relative to the surface on which the light source is arranged,
The light source is formed so as to project from the inner peripheral surface of the translucent portion toward the light source module along the surface of the light source module on which the light source is disposed, and the light source in the lateral direction of the light source module. A lighting device that holds the light source module by contacting an end of the module. 前記保持突起部は、
前記先端に向かうほど厚みが薄くなるように形成されている請求項１に記載の照明装置。 The holding protrusion is
The lighting device according to claim 1, wherein the lighting device has a thickness that becomes thinner toward the tip . 前記保持突起部は、
前記光源の照射角αの範囲外に形成されている請求項１又は２に記載の照明装置。 The holding protrusion is
The lighting device according to claim 1, wherein the lighting device is formed outside the irradiation angle α of the light source. 前記光源モジュールは前記光源が実装される基板を有しており、
前記基板の実装面には前記基板の材料の反射率よりも高い反射率であるレジストが塗布されている請求項１〜請求項３のいずれか１項に記載の照明装置。 The light source module has a substrate on which the light source is mounted,
The illumination device according to any one of claims 1 to 3, wherein a resist having a reflectance higher than that of a material of the substrate is applied to a mounting surface of the substrate.
JP2018085090A 2018-04-26 2018-04-26 Lighting equipment Expired - Fee Related JP6710235B2 (en)

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