JP5498531B2 - Light emitting device - Google Patents
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- JP5498531B2 JP5498531B2 JP2012116939A JP2012116939A JP5498531B2 JP 5498531 B2 JP5498531 B2 JP 5498531B2 JP 2012116939 A JP2012116939 A JP 2012116939A JP 2012116939 A JP2012116939 A JP 2012116939A JP 5498531 B2 JP5498531 B2 JP 5498531B2
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Description
本発明は、導光体と光源とを備え、前記導光体が被取付部に沿って環状構造に形成された発光装置に関する。 The present invention is provided with a light guide and a light source, the light guide is about - emitting device formed in a ring structure along the attached portion.
従来、この種のものとして、車室内に空気を吹出す車両用空調機のダクトと、前記ダクトの吹出口に配設されるレジスタと、前記レジスタの内側のダクト内で、かつ、光が前記レジスタの開口から車室内を照明可能な位置に配設された発光ダイオードからなる発光源と、前記発光ダイオードの発光源の発光色を暖房の際には暖色系に、冷房の場合には冷色系に切替える切替回路とを具備する車両用照明装置（例えば特許文献１）が提案されており、この車両用照明装置では、空調機の暖房運転の際、レジスタから暖色による室内照明がなされ、冷房運転の際には冷色による室内照明がなされる。 Conventionally, as this kind of vehicle, a duct of a vehicle air conditioner that blows air into a vehicle interior, a register disposed at an outlet of the duct, a duct inside the register, and light is A light emitting source comprising a light emitting diode disposed at a position capable of illuminating the vehicle interior from the opening of the register, and a light emitting color of the light emitting source of the light emitting diode in a warm color system when heating, and a cold color system in cooling A vehicle lighting device (for example, Patent Document 1) that includes a switching circuit for switching to an air conditioner has been proposed. In this vehicle lighting device, during heating operation of an air conditioner, indoor lighting with warm colors is performed from a register, and cooling operation is performed. In this case, the room is illuminated with a cool color.
上記車両用照明装置では、発光ダイオードが部分的に発光して室内照明がなされる。 In the above vehicle lighting device, the light emitting diode partially emits light to perform indoor lighting.
これに対して、空調エア吹出し口である長方形のセンタベントの裏側に発光手段を設け、この発光手段は、導光体たる発光部がセンタベンドの裏側周縁に沿って略無端状に設けられ、この発光部は、例えばアクリル板あるいはシリコンゴム等からなり、発光部の一端側に照射される光源ユニットからの光をライン状に導光しながら連続的に、あるいは断続的に散光するように構成した照明装置（例えば特許文献２）が提案されている。 On the other hand, the light emitting means is provided on the back side of the rectangular center vent that is the air-conditioning air outlet, and the light emitting means has a light emitting portion that is a light guide provided substantially endlessly along the back side peripheral edge of the center bend. The light emitting unit is made of, for example, an acrylic plate or silicon rubber, and is configured to continuously or intermittently scatter while guiding light from the light source unit irradiated to one end side of the light emitting unit in a line shape. An illumination device (for example, Patent Document 2) has been proposed.
また、導光体を環状構造に形成したものとして、導光体をスピーカのコーン部又はホーン部の外周とほぼ一致する形状のリング状部材とし、その導光体の切欠き部に発光部を装着して導光体の両端面から光を導光するイルミネーション装置（例えば特許文献３）も提案されている。 Also, assuming that the light guide is formed in an annular structure, the light guide is a ring-shaped member that substantially matches the outer periphery of the cone portion or horn portion of the speaker, and the light emitting portion is provided in the notch portion of the light guide. There has also been proposed an illumination device (for example, Patent Document 3) that is mounted and guides light from both end faces of the light guide.
上記特許文献２の照明装置では、長方形形状の発光部が連続的に散光する照明効果が得られ、また、上記特許文献３のイルミネーション装置では、リング状の導光体による照明効果が得られるが、それら照明装置及びイルミネーション装置は、構造上、光源ユニットから遠くなるに連れて発光部の光が弱くなるため、均一な照明効果を得ることができなかった。 In the illumination device of Patent Document 2, an illumination effect in which a rectangular light emitting unit continuously scatters light is obtained, and in the illumination device of Patent Document 3, an illumination effect by a ring-shaped light guide is obtained. The lighting device and the illumination device are structurally incapable of obtaining a uniform lighting effect because the light emitted from the light emitting portion becomes weaker as the distance from the light source unit increases.
そこで、本発明は、上記課題を解決するものであり、環状構造に配置した導光体の光の強さを均一化することができる発光装置を提供することを目的とする。 Accordingly, the present invention is to solve the above problems, and an object thereof is to provide a light emission device that can be made uniform the intensity of light of the light guide member arranged in the ring structure.
上記目的を達成するために、請求項１に係る発明は、導光体と光源とを備えた発光装置において、前記導光体は被取付部の内周形状に沿って環状構造にて形成され、内周面と、外周面と、前記光源が配置される後面と、前面とを有し、前記後面に前後方向の段部を設け、前記光源からの光を前記導光体の前記段部から前記導光体の環状方向に沿って射出して前記導光体を発光させると共に、前記導光体の前記後面及び前記外周面には光反射率を調整することにより光量を調整する光反射調整部を設け、前記外周面に設けられた前記光反射調整部の基端は、前記段部から離れて位置すると共に、前記段部と前記光反射調整部の基端との範囲に、前記光反射調整部を設けない部分を設けることにより前記導光体の前面を略均一に光らせることを特徴とする。 To achieve the above object formation, the invention according to claim 1, in the light emission device having a light guide and a light source, the light guide body at annular structure along the inner peripheral shape of the mounting portion is, the inner peripheral surface, and an outer peripheral surface, and the surface after the light source is disposed, and a front, provided with stepped portions in the longitudinal direction on the rear surface, the stage of the light guide light from the light source Light that emits light from the portion along the annular direction of the light guide to emit light, and adjusts the amount of light by adjusting light reflectance on the rear surface and the outer peripheral surface of the light guide. A reflection adjustment portion is provided , and a base end of the light reflection adjustment portion provided on the outer peripheral surface is located away from the step portion, and in a range between the step portion and the base end of the light reflection adjustment portion, JP substantially uniformly illuminate that the front surface of the light guide by providing a portion not provided with the light reflection adjustment portion To.
また、請求項２に係る発明は、前記光反射調整部は前記光源から前記導光体への光の射出部位付近の光反射率が低く、前記光源から離れるにつれて光反射率が高く形成されていることを特徴とする。 According to a second aspect of the present invention, the light reflection adjusting portion is formed such that the light reflectance near the light emission portion from the light source to the light guide is low, and the light reflectance increases as the distance from the light source increases. It is characterized by being.
また、請求項３に係る発明は、前記光反射調整部は、前記段部から離れるにつれて光の反射率が徐々に高くなるようにグラデーションを付ける印刷が施されている光反射調整シートからなることを特徴とする。 Moreover, the invention which concerns on Claim 3 consists of the light reflection adjustment sheet | seat on which the said light reflection adjustment part is given the printing which gives a gradation so that the reflectance of light may become high gradually as it leaves | separates from the said step part. It is characterized by.
また、請求項４に係る発明は、空調装置の空気吹き出し口の内周に沿って前記導光体を設けたことを特徴とする。 Further, according to claim 4 invention is characterized in that a light guide body along the inner periphery of the air outlet of the air conditioning apparatus.
本発明の請求項１記載の発光装置によれば、導光体を被取付部に沿って環状構造に形成し、その導光体の光の強さを均一化することで発光装置の高機能化が図れ、乗員の好みの多様性に応えることが可能となる。 According to the light emission apparatus according to the first aspect of the present invention, the light guide along the mounting portion is formed in the ring structure, the light emission device by equalizing the intensity of light of the light guide body High functionality can be achieved, and it becomes possible to meet the variety of passenger preferences.
本発明の請求項２記載の発光装置によれば、導光体の外面に設けた光反射調整部が光源から離れるに連れて光反射率が高くなるため、導光体が均一に発光する。 According to the light emission device according to a second aspect of the present invention, the light reflection adjustment portion provided on the outer surface of the lightguide for light reflectance increases with distance from the light source, the light guide is uniform emission .
本発明の請求項３記載の発光装置によれば、前記光反射調整部は光反射調整シートからなる。 According to the light emission device according to claim 3 of the present invention, the light reflection adjustment portion is made of a light reflection adjustment sheet.
本発明の請求項４記載の発光装置によれば、空気吹き出し口に設けた導光体の形状を吹き出し口に沿わせて形成し、光の強さを均一化することで照明装置の高機能化が図れ、乗員の好みの多様性に応えることが可能となる。 According to the light emission device according to claim 4 of the present invention, formed by and along the shape of the provided air outlet light guide body outlet, by equalizing the intensity of light of lighting apparatus High functionality can be achieved, and it becomes possible to meet the variety of passenger preferences.
以下、図面を参照して、本発明の発光装置の実施例について説明する。 Hereinafter, with reference to the accompanying drawings, a description will be given of an embodiment of a light emission device of the present invention.
図１〜図１１は本発明の実施例１を示し、同図に示すように、車両用発光装置は車両用空調装置の空気吹き出し口に設けられ、自走式の車両１のインストルメントパネル２の左右には被取付部たる空気吹き出し口３，３が設けられており、車載の空調装置により調整された空気が前記空気吹き出し口３から吹き出される。 1 to 11 show a first embodiment of the present invention. As shown in FIG. 1 to FIG. 11, a vehicle light emitting device is provided at an air outlet of a vehicle air conditioner, and an instrument panel 2 of a self-propelled vehicle 1 is shown. Air outlets 3 and 3 that are attached portions are provided on the left and right of the air, and air adjusted by an in-vehicle air conditioner is blown out from the air outlet 3.
前記発光装置は、ＬＥＤなどの光源11と導光体12とを備え、前記導光体12は前記空気吹き出し口３の内周に沿った環状構造にて形成され、光源11からの光を導光体12の空気吹き出し口内側から導光体12の環状方向に沿って射出して導光体12を発光させると共に、導光体12の外面には光反射調整部を設けている。 The light emitting device includes a light source 11 such as an LED and a light guide 12, and the light guide 12 is formed in an annular structure along the inner periphery of the air outlet 3, and guides light from the light source 11. The light guide 12 is emitted from the inside of the air outlet of the light body 12 along the annular direction of the light guide 12 to emit light, and a light reflection adjusting portion is provided on the outer surface of the light guide 12.
前記光反射調整部は、光源11に近い部分は光量が多いため反射率を低く、逆に光源11から遠くの部分は光量が小さいため反射率が高くなるような徐変反射率印刷シートを前記導光体12の裏面に貼り付けるか、直接印刷して形成される。 The light reflection adjustment unit is a gradual reflectance printing sheet in which the portion near the light source 11 has a low amount of light because the amount of light is low, and conversely, the portion far from the light source 11 has a low amount of light so that the reflectance is high. Affixed to the back surface of the light guide 12 or directly printed.
前記インストルメントパネル２には、前記吹き出し口３を構成する吹き出し筒13が設けられ、この吹き出し筒13は合成樹脂などからなり、後部に吹き出し筒後部たるダクト連結部14を設けると共に、前部に吹き出し筒前部たるフィン取付部15を設け、径小なダクト連結部14と径大なフィン取付部15との間には、段差部16が設けられており、前記ダクト連結部14の外周にはダクト17が連結され、このダクト17により吹き出し筒13と前記空調装置とが連結されている。 The instrument panel 2 is provided with a blowing cylinder 13 that constitutes the blowing port 3. The blowing cylinder 13 is made of synthetic resin or the like, and is provided with a duct connecting portion 14 at the rear of the blowing cylinder and at the front. A fin mounting portion 15 is provided at the front of the blowing cylinder, and a step portion 16 is provided between the small-diameter duct coupling portion 14 and the large-diameter fin mounting portion 15, and the outer periphery of the duct coupling portion 14 is provided. The duct 17 is connected, and the blowing cylinder 13 and the air conditioner are connected by the duct 17.
そして、インストルメントパネル２に開口部２Ａを設け、この開口部２Ａに前記吹き出し筒13の前部を固定している。また、この吹き出し筒13の前部である前記フィン取付部15に取付筒部18が固定され、この取付筒部18の前側開口部18Ａに略リング状の回動部19が回動可能に設けられ、この回動部19に複数の開閉フィン20，20が回動可能に枢着され、これら開閉フィン20，20が回動することにより前記前側開口部18Ａを開閉すると共に、それら開閉フィン20，20の回動角度により、空気吹き出し口３から出る空気の向きを調整することができる。また、前記回動部19を回すことにより開閉フィン20，20の向きを３６０度調整することができる。尚、前記複数の開閉フィン20，20は図示しないリンク機構により同体的に回動する。 And the opening part 2A is provided in the instrument panel 2, and the front part of the said blowing cylinder 13 is being fixed to this opening part 2A. Further, a mounting cylinder portion 18 is fixed to the fin mounting portion 15 which is the front portion of the blowing cylinder 13, and a substantially ring-shaped rotating portion 19 is rotatably provided in a front opening 18A of the mounting cylinder portion 18. A plurality of opening and closing fins 20 and 20 are pivotally attached to the rotating portion 19, and the opening and closing fins 20 are opened and closed by opening and closing the front opening 18A. , 20 can be adjusted by adjusting the direction of the air exiting from the air outlet 3. Further, the direction of the opening and closing fins 20 and 20 can be adjusted by 360 degrees by turning the rotating portion 19. The plurality of opening and closing fins 20 and 20 are rotated together by a link mechanism (not shown).
前記導光体12は略リング形をなし、前記ダクト連結部14内に固定される。図５に示すように吹き出し口３の外側に位置する前面21と、空気吹き出し口３の内側面たる後面22と、内周面23と、外周面24とを備え、内周面23と外周面24とは同心円上にある。そして、前記後面22と外周面24が導光体12の外面である。 The light guide 12 has a substantially ring shape and is fixed in the duct connecting portion 14. As shown in FIG. 5, a front surface 21 located outside the air outlet 3, a rear surface 22 that is an inner surface of the air outlet 3, an inner peripheral surface 23, and an outer peripheral surface 24, the inner peripheral surface 23 and the outer peripheral surface are provided. 24 is concentric. The rear surface 22 and the outer peripheral surface 24 are the outer surfaces of the light guide 12.
前記後面22には、円周方向等間隔の位置に入光部たる段部25が設けられ、この段部25は前後方向に形成され、この段部25の前端25Ｆにおいて導光体12の前後方向寸法が最小となり、基端である前記段部25の後端25Ｂから、終端である隣の段部25の前端25Ｆまで、略一定の勾配で傾斜した傾斜面22Ｋが前記後面22に形成されている。これにより段部25の後端25Ｂの位置から隣の段部25の前端25Ｆの位置まで導光体12の前後厚さが徐々に薄くなるように形成されている。 The rear surface 22 is provided with step portions 25 which are light incident portions at equally spaced positions in the circumferential direction. The step portions 25 are formed in the front-rear direction. An inclined surface 22K inclined at a substantially constant gradient is formed on the rear surface 22 from the rear end 25B of the step portion 25 which is the base end to the front end 25F of the adjacent step portion 25 which is the terminal end. ing. Thus, the thickness of the light guide 12 is gradually reduced from the position of the rear end 25B of the stepped portion 25 to the position of the front end 25F of the adjacent stepped portion 25.
そして、前記段部25，25に前記光源11，11がそれぞれ配置され、前記光源11は、前記段部25から隣の段部25側に向け該導光体12の環状方向に沿って光を射出し、図１０に示すように導光体12の略接線方向に光を射出する。尚、図８〜図１０などでは説明のために、光の向きを白抜き矢印で示した。 The light sources 11 and 11 are respectively disposed in the step portions 25 and 25, and the light source 11 emits light along the annular direction of the light guide 12 from the step portion 25 toward the adjacent step portion 25 side. As shown in FIG. 10, the light is emitted in a substantially tangential direction of the light guide 12. In FIGS. 8 to 10 and the like, the direction of light is indicated by a white arrow for the sake of explanation.
また、前記外周面24と後面22には前記光反射調整部たる光反射調整シート31が貼設されている。この光反射調整シート31は、光源11の光が入射する入射側の段部25から光が導光される隣の段部25に向って光の反射率が徐々に又は段階的に高くなるものであり、シート31には、濃淡の印刷を施し、段部25から離れるにしたがって、反射率が低い黒から灰色、灰色から反射率が高い白になるようにグラデーションを付ける印刷が施されている。このように長さ方向（導光体12の周方向）に徐々に光の反射率を変える印刷を施したシート31であるから、徐変反射率印刷シートと称する。この場合、印刷ではなく、シート31の材質によりグラデーションを施しても良いし、前記外周面24と後面22に印刷層により光反射調整部を設けてもよい。 Further, a light reflection adjusting sheet 31 as the light reflection adjusting portion is attached to the outer peripheral surface 24 and the rear surface 22. This light reflection adjusting sheet 31 has a light reflectance that increases gradually or stepwise from the incident side step portion 25 where the light of the light source 11 enters toward the adjacent step portion 25 where the light is guided. The sheet 31 is printed with shades of gray, and with a gradation so that the reflectance decreases from black to gray and from gray to high reflectance as the distance from the step portion 25 increases. . Since the sheet 31 has been subjected to printing in which the light reflectance is gradually changed in the length direction (the circumferential direction of the light guide 12) as described above, it is referred to as a gradually changing reflectance printed sheet. In this case, gradation may be given not by printing but by the material of the sheet 31, and a light reflection adjusting portion may be provided on the outer peripheral surface 24 and the rear surface 22 by a printing layer.
さらに、外周面24では、光源11の近傍である基端側に、光反射調整部を設けない部分32を設けており、片側１８０度の範囲において、１５％〜２５％（好ましくは２０％）、すなわち角度θが２７度〜４５度の範囲を、光反射調整部を設けない部分32とし、この部分32は光の一部が外周面24を透過する。すなわち外周面24においては、光反射調整部である光反射調整シート31の基端31Ｋは、段部25から角度θが２７度〜４５度だけ離れて位置し、光反射調整シート31の先端31Ｓは隣り合う段部25に位置する。そして、外周面24の基端側は光量が多いので、光源11の光を、矢印Ｙに示すように一部直進透過させ、外周面24における全反射の割合を低くすることにより光量を調整している。そして、光反射調整部は、光源11から遠くなるに連れて反射率を高くすることにより光量を略均一に調整している。 Further, on the outer peripheral surface 24, a portion 32 not provided with a light reflection adjusting portion is provided on the proximal end side in the vicinity of the light source 11, and 15% to 25% (preferably 20%) in a range of 180 degrees on one side. the scope i.e. angle θ is 27 degrees to 45 degrees, and the portion 32 without the light reflection adjustment portion, this portion 32 is a portion of the light passes through the outer peripheral surface 24. That is, on the outer peripheral surface 24, the base end 31K of the light reflection adjusting sheet 31 that is a light reflection adjusting portion is positioned away from the step portion 25 by an angle θ of 27 degrees to 45 degrees, and the tip 31S of the light reflection adjusting sheet 31 Are located in adjacent step portions 25. Since the base end side of the outer peripheral surface 24 has a large amount of light, the light from the light source 11 is partially transmitted in a straight line as shown by the arrow Y, and the amount of total reflection on the outer peripheral surface 24 is reduced to adjust the light amount. ing. Then, the light reflection adjusting unit adjusts the amount of light substantially uniformly by increasing the reflectance as the distance from the light source 11 increases.
一方、図９に示すように、後面22には、傾斜面22Ｋの全面に光反射調整部が設けられている。すなわち、段部25の後端25Ｂから隣の段部25の前端25Ｆに連続して光反射調整部を設け、後面22では、段部25のみ光反射調整部が設けられていない。 On the other hand, as shown in FIG. 9, the rear surface 22 is provided with a light reflection adjusting portion on the entire inclined surface 22K. That is, the light reflection adjusting portion is provided continuously from the rear end 25B of the step portion 25 to the front end 25F of the adjacent step portion 25, and only the step portion 25 is not provided with the light reflection adjusting portion on the rear surface 22.
したがって、光源11を射出すると、光が段部25から導光体12の環状方向に沿って入光し、段部25の近傍の外周面24では、光反射調整部を設けない部分32では光の一部が全反射せずに透過し、外周面24と後面22に設けた反射率が徐々に高くなる前記光反射調整部により、前面21と内周面23を略均一に光らせることができる。また、リング状の導光体12に対して、複数の光源11，11を周方向等間隔の位置に設け、各光源11，11から同一周方向に光を入光することにより、リング状の導光体12において、均一な照明効果を得ることができる。 Therefore, when the light source 11 is emitted, light enters from the step portion 25 along the annular direction of the light guide 12, and the outer peripheral surface 24 in the vicinity of the step portion 25 emits light at the portion 32 where the light reflection adjusting portion is not provided. A part of the light is transmitted without being totally reflected, and the light reflection adjusting portion in which the reflectance provided on the outer peripheral surface 24 and the rear surface 22 is gradually increased allows the front surface 21 and the inner peripheral surface 23 to emit light substantially uniformly. . Further, with respect to the ring-shaped light guide 12, a plurality of light sources 11, 11 are provided at equally spaced positions in the circumferential direction, and light is incident from the respective light sources 11, 11 in the same circumferential direction. In the light guide 12, a uniform illumination effect can be obtained.
このように本実施例では、請求項１に対応して、導光体12と光源11とを備えた発光装置において、導光体12は被取付部たる吹き出し筒13の内周形状に沿って環状構造にて形成され、内周面23と、外周面24と、光源11が配置される後面22と、前面21とを有し、後面22に前後方向の段部25を設け、光源11からの光を導光体12の段部25から導光体12の環状方向に沿って射出して導光体12を発光させると共に、導光体12の後面22及び外周面24には光反射率を調整することにより光量を調整する光反射調整部たる光反射調整シート31を設け、外周面24に設けられた光反射調整シート31の基端31Ｋは、段部25から離れて位置すると共に、段部25と光反射調整シート31の基端31Ｋとの範囲に、光反射調整シート31を設けない部分32を設けることにより導光体12の前面21を略均一に光らせるから、導光体12を吹き出し筒13の内周面に沿って環状構造に形成し、その導光体12の光の強さを均一化することで発光装置の高機能化が図れ、乗員の好みの多様性に応えることが可能となる。 Thus, in this embodiment, corresponding to claim 1, in light emission device and a light guide 12 and the light source 11, the light guide 12 along the inner peripheral shape of the attachment portion serving balloon tube 13 And has an inner peripheral surface 23, an outer peripheral surface 24, a rear surface 22 on which the light source 11 is arranged, and a front surface 21. The rear surface 22 is provided with a step portion 25 in the front-rear direction. The light from the stepped portion 25 of the light guide 12 is emitted along the annular direction of the light guide 12 to cause the light guide 12 to emit light, and light is reflected on the rear surface 22 and the outer peripheral surface 24 of the light guide 12 A light reflection adjusting sheet 31 that is a light reflection adjusting unit that adjusts the amount of light by adjusting the rate is provided, and the base end 31K of the light reflection adjusting sheet 31 provided on the outer peripheral surface 24 is located away from the step portion 25. The front surface 21 of the light guide 12 is made substantially uniform by providing a portion 32 where the light reflection adjustment sheet 31 is not provided in the range between the step portion 25 and the base end 31K of the light reflection adjustment sheet 31. From Selle, along the inner peripheral surface of the light guide 12 balloon tube 13 is formed in a ring structure, Hakare the sophistication of light emission device by equalizing the intensity of light of the light guide member 12 It becomes possible to meet the variety of passenger preferences.
また、このように本実施例では、請求項２に対応して、光反射調整部たる光反射調整シート31は光源11から導光体12への光の射出部位付近の光反射率が低く、光源11から離れるにつれて光反射率が高く形成されているから、導光体12の外面に設けた光反射調整シート31が光源11から離れるに連れて光反射率が高くなるため、導光体12を均一に発光することができる。尚、導光体12の段部25が光源11からの光の入射部位である。 In this way, in this embodiment, in correspondence with claim 2, the light reflection adjusting sheet 31 serving as the light reflection adjusting unit has a low light reflectance in the vicinity of the light emission portion from the light source 11 to the light guide 12, Since the light reflectance increases as the distance from the light source 11 increases, the light reflectance increases as the light reflection adjusting sheet 31 provided on the outer surface of the light guide 12 moves away from the light source 11. Can be emitted uniformly. Note that the step portion 25 of the light guide 12 is an incident site of light from the light source 11.
また、このように本実施例では、請求項１に対応して、光反射調整部たる光反射調整シート31は導光体12の外周面24及び後面22に形成してなるから、導光体12の外周面24及び後面22からの光の漏れを抑制して導光体12を均一に発光することができる。 Further, in the present embodiment in this manner, corresponding to claim 1, since the light reflecting adjusting sheet 31 serving as the light reflection adjustment portion is formed on the outer peripheral surface 24及beauty rear face 22 of the light guide 12, guide Light leakage from the outer peripheral surface 24 and the rear surface 22 of the light body 12 can be suppressed, and the light guide body 12 can emit light uniformly.
また、このように本実施例では、請求項３に対応して、光反射調整部は、段部25から離れるにつれて光の反射率が徐々に高くなるようにグラデーションを付ける印刷が施されている光反射調整シート31からなる。
また、光源11は導光体12の円周上に略等間隔に複数配置してなるから、複数の導光体12，12を略等間隔に配置することにより導光体12，12を均一に発光することができる。
Thus, in this embodiment, in correspondence with claim 3 , the light reflection adjusting portion is printed with gradation so that the reflectance of light gradually increases as the distance from the step portion 25 increases. The light reflection adjustment sheet 31 is used.
In addition, since the light source 11 is arranged in plural at substantially equal intervals on the circumference of the light guide 12 , the light guides 12, 12 are made uniform by arranging the plurality of light guides 12, 12 at almost equal intervals. Can emit light.
また、このように本実施例では、請求項４に対応して、空調装置の空気吹き出し口３の内周に沿って導光体12を設けたから、空気吹き出し口３に設けた導光体12の形状を吹き出し口３に沿わせて形成し、光の強さを均一化することで照明装置の高機能化が図れ、乗員の好みの多様性に応えることが可能となる。 Further, the light guide in the present embodiment in this manner, corresponding to claim 4, since providing the light guide 12 along the inner periphery of the air outlet 3 of the air conditioning device, provided in the air outlet 3 12 shape along a outlet 3 formed, by equalizing the intensity of light Hakare is high performance of lighting apparatus, it is possible to meet the diversity of the occupant's preference.
また、実施例上の効果として、導光体12の後面22に段部25を設け、段部25に光源11を配置することにより、光源11が導光体12の後に隠れるため、綺麗な円形状の発光を楽しむことができる。また、導光体12の後面22に入光部たる段部25を設け、この段部25の前端25Ｆにおいて導光体12の前後方向寸法が最小となり、基端である前記段部25の後端25Ｂから、終端である隣の段部25の前端25Ｆまで、略一定の勾配で傾斜した傾斜面22Ｋが前記後面22に形成され、光路が徐々に絞られることにより、連続して均一な照明効果を得ることができる。また、光反射調整部は、反射率が低い黒から灰色、灰色から反射率が高い白になるようにグラデーションを付けてなるから、段部25から離れるにつれて徐々に光量が少なくなるのに対して、反射率を高くすることにより均一な照明効果が得られる。また、光反射調整部を印刷形成すれば、加工が容易となる。さらに、外周面24では、光源11の近傍である基端側に、光反射調整部を設けない部分32を設けており、この部分32において、外周面24は、光反射調整部の反射率が最低の部分より光の反射率が低いから、光反射調整部を設けない部分32では光の一部が全反射せずに透過し、光反射調整部と合わせて均一な照明を行うことができる。また、光反射調整シート31がない部分32と光反射調整シート31とを組み合わせ、前記部分32は外周面24に全反射しない光が透過して光の一部が逃げ、入光部である段部25における発光を抑え、全体として均一な照明が可能となる。 Further, as an effect on the embodiment, by providing a step portion 25 on the rear surface 22 of the light guide 12 and arranging the light source 11 on the step portion 25, the light source 11 is hidden behind the light guide 12, so a beautiful circle You can enjoy the light emission of the shape. Further, a step portion 25 which is a light incident portion is provided on the rear surface 22 of the light guide body 12, and the front-rear direction dimension of the light guide body 12 is minimized at the front end 25 </ b> F of the step portion 25, so From the end 25B to the front end 25F of the adjacent stepped portion 25, which is the end, an inclined surface 22K inclined at a substantially constant gradient is formed on the rear surface 22, and the optical path is gradually narrowed down so that the illumination is continuously uniform. An effect can be obtained. In addition, the light reflection adjustment unit has a gradation so that the reflectance is from black to gray and from gray to white with high reflectance, so the light quantity gradually decreases as the distance from the step portion 25 increases. A uniform illumination effect can be obtained by increasing the reflectance. Further, if the light reflection adjusting portion is formed by printing, the processing becomes easy. Further, the outer peripheral surface 24 is provided with a portion 32 where the light reflection adjusting portion is not provided on the base end side in the vicinity of the light source 11, and in this portion 32, the outer peripheral surface 24 has a reflectance of the light reflection adjusting portion. Since the reflectance of light is lower than the lowest part, part of the light is transmitted without being totally reflected in the part 32 where the light reflection adjusting part is not provided, and uniform illumination can be performed together with the light reflection adjusting part. . Further, the portion 32 that does not have the light reflection adjusting sheet 31 and the light reflection adjusting sheet 31 are combined, and the portion 32 is a step where light that does not totally reflect is transmitted to the outer peripheral surface 24 and a part of the light escapes and is a light incident portion. Light emission in the unit 25 is suppressed, and uniform illumination as a whole is possible.
参考例
図１２は、本発明の参考例を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、外周面24の略全面に前記光反射調整部を設けており、この例では、外周面24を透過する光量を抑えることができる。
Reference Example FIG. 12 shows a reference example of the present invention. The same reference numerals are given to the same parts as those in the first embodiment, and detailed description thereof will be omitted. In this example, the light reflection adjusting portion is provided on substantially the entire outer peripheral surface 24. In this example, the amount of light transmitted through the outer peripheral surface 24 can be suppressed.
図１３及び図１４は、本発明の実施例２を示し、上記実施例及び参考例と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、車両用発光装置を車載のスピーカ41に適用した例を示し、スピーカ41の円筒状の外周部42の周囲に、間隔を置いて外筒部43を設け、それら外周部42と外筒部43の間に前記導光体12を挟み込むようにして配置し、導光体12の後面22，内周面23及び外周面24に光反射調整シート31を設けている。 13 and 14 show a second embodiment of the present invention, the same reference numerals are applied to the upper you施例and reference examples the same components will be described in detail with omitting a detailed description thereof. In this example, the vehicle light emitting device is applied to an in-vehicle speaker 41, and an outer cylindrical portion 43 is provided around the cylindrical outer peripheral portion 42 of the speaker 41 with an interval therebetween. The light guide 12 is disposed between the cylindrical portions 43, and a light reflection adjusting sheet 31 is provided on the rear surface 22, the inner peripheral surface 23, and the outer peripheral surface 24 of the light guide 12.
このように本実施例では、空調装置の空気吹き出し口３に設けられた照明装置において、光源11と導光体12とを備え、導光体12は空気吹き出し口３の内周に沿った環状構造にて形成され、光源11からの光を導光体12の空気吹き出し口内側である後面22から導光体12の環状方向に沿って射出して導光体12を発光させると共に、導光体12の外面には光反射調整部たる光反射調整シート31を設けたから、上記実施例及び参考例と同様な作用・効果を奏する。 Thus, in this embodiment, in the illumination device provided in the air outlet 3 of the air-conditioning apparatus, and a light source 11 and the light guide 12, light guide 12 along the inner periphery of the air outlet 3 It is formed in an annular structure, and light from the light source 11 is emitted from the rear surface 22 inside the air outlet of the light guide 12 along the annular direction of the light guide 12 to cause the light guide 12 to emit light and guide light. since the outer surface of the optical member 12 is provided with the light reflection adjustment portion serving light reflecting adjusting sheet 31, effects comparable to those above you施例and reference examples.
尚、本発明は、本実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、実施例では、光反射調整部として、濃淡の印刷などにより灰色から黒になるようにグラデーションにより光の反射率を変えるように構成したが、導光体の表面を粗し加工を施し、その粗しの度合により光の反射率を変えるようにしてもよく、その粗し加工としては、シボ加工が例示される。 The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the embodiment, the light reflection adjustment unit is configured to change the reflectance of light by gradation so that it is changed from gray to black by gradation printing or the like, but the surface of the light guide is roughened, The reflectance of light may be changed depending on the degree of the roughening, and an example of the roughing process is an embossing process.
１ 車両
３ 空気吹き出し口
11 光源
12 導光体
13 吹き出し筒（被取付部）
21 前面
22 後面（被取付部内側面、空気吹き出し口内側面、導光体の外面）
23 内周面
24 外周面（導光体の外面）
25 段部
31 光反射調整シート（光反射調整部）
31Ｋ 基端
32 光反射調整部を設けない部分
41 スピーカ
42 外周部（被取付部）
1 Vehicle 3 Air outlet
11 Light source
12 Light guide
13 Blowout tube (attached part)
21 Front
22 Rear surface (attached part inner surface, air outlet inner surface, light guide outer surface)
23 Inner peripheral surface
24 Outer surface (outer surface of light guide)
25 steps
31 Light reflection adjustment sheet (Light reflection adjustment part)
31K Base end
32 Parts where the light reflection adjustment section is not provided
41 Speaker
42 Outer part (attached part)
Claims (4)
前記導光体は被取付部の内周形状に沿って環状構造にて形成され、内周面と、外周面と、前記光源が配置される後面と、前面とを有し、前記後面に前後方向の段部を設け、
前記光源からの光を前記導光体の前記段部から前記導光体の環状方向に沿って射出して前記導光体を発光させると共に、前記導光体の前記後面及び前記外周面には光反射率を調整することにより光量を調整する光反射調整部を設け、前記外周面に設けられた前記光反射調整部の基端は、前記段部から離れて位置すると共に、前記段部と前記光反射調整部の基端との範囲に、前記光反射調整部を設けない部分を設けることにより前記導光体の前面を略均一に光らせることを特徴とする発光装置。 In light emission device and a light guide and a light source,
The light guide is formed in an annular structure along the inner peripheral shape of the mounted portion , and has an inner peripheral surface, an outer peripheral surface, a rear surface on which the light source is disposed, and a front surface. A step in the direction,
Light from the light source is emitted from the step portion of the light guide along the annular direction of the light guide to cause the light guide to emit light, and on the rear surface and the outer peripheral surface of the light guide A light reflection adjustment unit that adjusts the amount of light by adjusting the light reflectance is provided , and a base end of the light reflection adjustment unit provided on the outer peripheral surface is located away from the step part, and the step part and the range of the base end of the light reflection adjustment portion, emitting light device you said substantially uniformly illuminate that the front surface of the light guide by providing a portion not provided with the light reflection adjustment portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012116939A JP5498531B2 (en) | 2012-05-22 | 2012-05-22 | Light emitting device |
| CN201310146320.3A CN103423682B (en) | 2012-05-22 | 2013-04-24 | Vehicle light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012116939A JP5498531B2 (en) | 2012-05-22 | 2012-05-22 | Light emitting device |
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| JP2013241157A JP2013241157A (en) | 2013-12-05 |
| JP5498531B2 true JP5498531B2 (en) | 2014-05-21 |
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|---|---|---|---|
| JP2012116939A Expired - Fee Related JP5498531B2 (en) | 2012-05-22 | 2012-05-22 | Light emitting device |
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| CN (1) | CN103423682B (en) |
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| CN103927951A (en) * | 2014-03-19 | 2014-07-16 | 玉晶光电股份有限公司 | Display equipment |
| CN107435818A (en) * | 2016-05-26 | 2017-12-05 | 技嘉科技股份有限公司 | Luminous Ring and radiator fan |
| JP2018171104A (en) * | 2017-03-31 | 2018-11-08 | 株式会社ユニバーサルエンターテインメント | Game machine |
| CN114234125A (en) * | 2021-11-10 | 2022-03-25 | 马瑞利汽车零部件(芜湖)有限公司 | Light guide structure mounting adapter and car lamp thereof |
| KR102671932B1 (en) * | 2022-05-10 | 2024-06-05 | 엔브이에이치코리아(주) | Roof air vent and headlining assembly comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000207916A (en) * | 1999-01-11 | 2000-07-28 | Yamaha Corp | Lighting system and operating device |
| JP2001199279A (en) * | 2000-01-19 | 2001-07-24 | Auto Network Gijutsu Kenkyusho:Kk | Lighting system |
| JP2005258011A (en) * | 2004-03-11 | 2005-09-22 | Canon Inc | Illuminator and photographing apparatus |
| DE202006000920U1 (en) * | 2006-01-20 | 2006-04-20 | Lin, Yu-Chu, Yung Kang | Light collecting ring for vehicle lamp, has concave light collecting surfaces formed by corners and dells of corrugated lower side, and illuminants arranged in dells of reflector to produce light |
| CN101451682B (en) * | 2007-12-06 | 2011-06-08 | 富士迈半导体精密工业（上海）有限公司 | Ring lighting device |
| JP2009258017A (en) * | 2008-04-18 | 2009-11-05 | Fujikura Ltd | Display device and light guide used for the same |
| CN101639200A (en) * | 2008-07-30 | 2010-02-03 | 深圳富泰宏精密工业有限公司 | Light conductor and light source device with same |
| JP5200862B2 (en) * | 2008-10-31 | 2013-06-05 | パナソニック株式会社 | Ceiling fan |
| JP4844680B2 (en) * | 2010-05-25 | 2011-12-28 | パナソニック株式会社 | Lighting device and camera |
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2012
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| JP2013241157A (en) | 2013-12-05 |
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