JP2008292658A - Illuminating device - Google Patents

Illuminating device Download PDF

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JP2008292658A
JP2008292658A JP2007136566A JP2007136566A JP2008292658A JP 2008292658 A JP2008292658 A JP 2008292658A JP 2007136566 A JP2007136566 A JP 2007136566A JP 2007136566 A JP2007136566 A JP 2007136566A JP 2008292658 A JP2008292658 A JP 2008292658A
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light
light source
guide member
rod
light guide
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JP4957998B2 (en
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Morihisa Yoshino
森久 吉野
Toshiyuki Kondo
俊幸 近藤
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating device capable of forming a columnar light (image), and also, having high utilization efficiency in terms of light emitted from a light source. <P>SOLUTION: The illuminating device includes: a light guide member formed of a transparent or translucent material; the light source for emitting the light to be made incident on the light guide member; a plurality of individual reflection surfaces formed on the light guide member, for reflecting the light emitted from the light source and made incident on the light guide member. The plurality of individual reflecting surfaces extend in a direction nearly perpendicular to the optical axis of the light source, and arranged in a direction inclined by a prescribed angle related to the optical axis of the light source so as to reflect the light emitted from the light source and made incident on the light guide member, then, the columnar light is generated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、照明装置に関し、特に棒状の光（像）を形成することができ、かつ、光源が発光した光の利用効率が高い照明装置に関する。   The present invention relates to an illuminating device, and more particularly to an illuminating device that can form rod-shaped light (image) and has high utilization efficiency of light emitted from a light source.

従来、片側表面に円環状に連なる複数のプリズムが周期的に形成された光透過性のプリズム板、及び、複数の光源を用いて、光源ごとに異なる位置に斜め後方に末広がり状に延びる楔形形状の光線像を形成する装置が提案されている（特許文献１）。
特開２０００−３５７７０号公報 Conventionally, a light-transmitting prism plate in which a plurality of prisms connected in an annular shape are formed periodically on one side surface, and a wedge-shaped shape extending in a divergent shape obliquely rearward at different positions for each light source Has been proposed (Patent Document 1).
JP 2000-35770 A

しかしながら、特許文献１に記載の装置では、複数のプリズムが円環状に連なっているため、棒状の光（像）を形成することができない。また、光源とプリズムの間が空間であるため、光源が発光した光がプリズムに達するまでに拡散してしまい、光の利用効率が良くないという問題がある。   However, in the apparatus described in Patent Document 1, since a plurality of prisms are connected in an annular shape, rod-shaped light (image) cannot be formed. In addition, since the space between the light source and the prism is a space, the light emitted from the light source diffuses before reaching the prism, and there is a problem that the light use efficiency is not good.

本発明は、このような事情に鑑みてなされたものであり、棒状の光（像）を形成することができ、かつ、光源が発光した光の利用効率が高い照明装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide an illuminating device that can form rod-shaped light (image) and has high utilization efficiency of light emitted from a light source. And

本発明は上記課題を解決するために、請求項１に記載の発明は、透明又は半透明材料により形成された導光部材と、前記導光部材に入射させる光を発光する光源と、前記導光部材に形成されており、前記光源から前記導光部材に入射した光を反射する複数の個別反射面と、を備えており、前記複数の個別反射面は、前記光源の光軸に対して略直交する方向に延びており、かつ、前記光源の光軸に対して所定角度傾斜した方向に配置されており、前記光源から前記導光部材に入射した光を反射することにより棒状の光を出現させることを特徴とする。   In order to solve the above problems, the present invention provides a light guide member formed of a transparent or translucent material, a light source that emits light incident on the light guide member, and the light guide. A plurality of individual reflecting surfaces that are formed on the optical member and reflect light incident on the light guide member from the light source, and the plurality of individual reflecting surfaces with respect to the optical axis of the light source. It extends in a substantially orthogonal direction and is arranged in a direction inclined at a predetermined angle with respect to the optical axis of the light source, and reflects light incident on the light guide member from the light source to thereby produce a rod-shaped light. It is made to appear.

請求項１に記載の発明によれば、光源の光軸に対して所定角度傾斜した方向に配置された複数の個別反射面により光源から導光部材に入射した光を反射することにより、棒状の光（実像）を出現させることが可能となる。   According to the first aspect of the invention, the light incident on the light guide member from the light source is reflected by the plurality of individual reflecting surfaces arranged in a direction inclined by a predetermined angle with respect to the optical axis of the light source, thereby Light (real image) can appear.

また、請求項１に記載の発明によれば、光源が発光した光は導光部材に入射し導光部材を通って各個別反射面に達して各個別反射面で反射する。これにより、棒状の光が出現する。すなわち、従来と比較して各個別反射面に達する間に拡散する光が少なくなるので、光の利用効率を向上させることが可能となる。   According to the first aspect of the present invention, the light emitted from the light source enters the light guide member, passes through the light guide member, reaches each individual reflection surface, and is reflected by each individual reflection surface. Thereby, rod-shaped light appears. That is, since the amount of light diffused while reaching each individual reflecting surface is reduced as compared with the conventional case, the light utilization efficiency can be improved.

請求項２に記載の発明は、請求項１に記載の発明において、前記出現した棒状の光を反射し前記棒状の光の虚像を作り出す反射面をさらに備えることを特徴とする。   The invention according to claim 2 is the invention according to claim 1, further comprising a reflecting surface that reflects the appearing rod-shaped light and creates a virtual image of the rod-shaped light.

請求項２に記載の発明によれば、反射面を備えているので、光源が一つであっても複数の棒状の光を視認させることが可能となる。すなわち、光の利用効率をさらに向上させることが可能となる。これにより、光源削減、コスト低下が可能となる。   According to the second aspect of the present invention, since the reflecting surface is provided, a plurality of rod-shaped lights can be visually recognized even if there is only one light source. That is, the light utilization efficiency can be further improved. Thereby, light source reduction and cost reduction are possible.

請求項３に記載の発明は、請求項１又は２に記載の発明において、前記導光部材は、少なくとも前記光源が発光した光が入射する第１平面と、前記第１平面に直交する第２平面と、前記第２平面に対して所定角度傾斜した傾斜面とにより規定される略三角柱の形状であり、前記複数の個別反射面は、前記傾斜面に形成されており、前記反射面は、前記傾斜面に対して所定角度傾斜した状態で配置されていることを特徴とする。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the light guide member includes a first plane on which at least light emitted from the light source is incident and a second plane orthogonal to the first plane. It is a substantially triangular prism shape defined by a plane and an inclined surface inclined at a predetermined angle with respect to the second plane, and the plurality of individual reflecting surfaces are formed on the inclined surface, It arrange | positions in the state inclined by the predetermined angle with respect to the said inclined surface, It is characterized by the above-mentioned.

請求項３に記載の発明によれば、傾斜面に対して所定角度傾斜した状態で配置された反射面により棒状の光（実像）を反射するので、この所定傾斜角度に応じた角度傾斜しているように視認される棒状の光（実像）の虚像を作り出すことが可能となる。この棒状の光（実像）の虚像は、棒状の光（実像）とは逆方向に傾斜しているように視認される。すなわち、請求項３に記載の発明によれば、棒状の光（実像）と棒状の光（虚像）が立体交差しているように視認される奥行き感のある新規照明（像）を作り出すことが可能となる。   According to the third aspect of the present invention, the rod-like light (real image) is reflected by the reflecting surface disposed in a state inclined at a predetermined angle with respect to the inclined surface. It is possible to create a virtual image of rod-like light (real image) that is visually recognized. The virtual image of the rod-shaped light (real image) is visually recognized as being inclined in the opposite direction to the rod-shaped light (real image). That is, according to the third aspect of the invention, it is possible to create a new illumination (image) having a sense of depth so that the rod-shaped light (real image) and the rod-shaped light (virtual image) are visually recognized as three-dimensionally intersecting. It becomes possible.

請求項４に記載の発明は、請求項１から３のいずれかに記載の発明において、前記複数の個別傾斜面の断面が直線、円形、楕円形、又は、多角形のうちのいずれかであることを特徴とする。   The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein a cross section of the plurality of individual inclined surfaces is any of a straight line, a circle, an ellipse, or a polygon. It is characterized by that.

請求項４に記載の発明によれば、例えば、断面が直線の個別傾斜面を採用することで、特定の方向に発光強度を持つ棒状の光を出現させることが可能となる。また例えば、断面が円形等の個別傾斜面を採用することで、所定範囲に略均等な発光強度を持つ棒状の光を出現させることが可能となる。   According to the fourth aspect of the present invention, for example, by adopting an individual inclined surface having a straight section, it becomes possible to make bar-shaped light having emission intensity in a specific direction appear. In addition, for example, by adopting an individual inclined surface having a circular cross section, it becomes possible to make a bar-shaped light having a substantially uniform light emission intensity appear in a predetermined range.

請求項５に記載の発明は、請求項１から４のいずれかに記載の発明において、前記反射面の断面が直線、円形、楕円形、又は、多角形のうちのいずれかであることを特徴とする。   The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein a cross section of the reflecting surface is any one of a straight line, a circle, an ellipse, and a polygon. And

請求項５に記載の発明によれば、例えば、断面が直線の反射面を採用することで、棒状の光（実像）と略同一形状の棒状の光（虚像）を作り出すことが可能となる。また例えば、断面が円形等の凸反射面を採用することで、棒状の光（実像）より太い形状の棒状の光（虚像）を作り出すことが可能となる。また例えば、断面が円形等の凹反射面を採用することで、棒状の光（実像）より細い形状の棒状の光（虚像）を作り出すことが可能となる。   According to the fifth aspect of the present invention, for example, by adopting a reflective surface having a straight section, it becomes possible to create a rod-shaped light (virtual image) having substantially the same shape as the rod-shaped light (real image). Further, for example, by adopting a convex reflection surface having a circular cross section, it becomes possible to create a rod-shaped light (virtual image) having a thicker shape than a rod-shaped light (real image). Further, for example, by adopting a concave reflecting surface having a circular cross section, it becomes possible to create a rod-like light (virtual image) having a shape narrower than the rod-like light (real image).

請求項６に記載の発明は、光源から入射した光を反射することにより棒状の光を出現させる透明又は半透明材料により形成された導光部材において、前記光源から入射した光を反射する複数の個別反射面を備えており、前記複数の個別反射面は、前記光源の光軸に対して略直交する方向に延びており、かつ、前記光源の光軸に対して所定角度傾斜した方向に配置されていることを特徴とする。   The invention according to claim 6 is a light guide member made of a transparent or semi-transparent material that makes bar-like light appear by reflecting light incident from the light source, and a plurality of light reflecting the light incident from the light source. A plurality of individual reflecting surfaces extending in a direction substantially perpendicular to the optical axis of the light source and arranged in a direction inclined by a predetermined angle with respect to the optical axis of the light source; It is characterized by being.

請求項６に記載の発明によれば、光源の光軸に対して所定角度傾斜した方向に配置された複数の個別反射面により光源から導光部材に入射した光を反射することにより、棒状の光（実像）を出現させることが可能となる。   According to the sixth aspect of the present invention, the light incident on the light guide member from the light source is reflected by the plurality of individual reflecting surfaces arranged in the direction inclined by a predetermined angle with respect to the optical axis of the light source, thereby Light (real image) can appear.

また、請求項６に記載の発明によれば、光源が発光した光は導光部材に入射し導光部材を通って各個別反射面に達して各個別反射面で反射する。これにより、棒状の光が出現する。すなわち、従来と比較して各個別反射面に達する間に拡散する光が少なくなるので、光の利用効率を向上させることが可能となる。   According to the sixth aspect of the present invention, the light emitted from the light source enters the light guide member, passes through the light guide member, reaches each individual reflection surface, and is reflected by each individual reflection surface. Thereby, rod-shaped light appears. That is, since the amount of light diffused while reaching each individual reflecting surface is reduced as compared with the conventional case, the light utilization efficiency can be improved.

本発明によれば、棒状の光（像）を形成することができ、かつ、光源が発光した光の利用効率が高い照明装置を提供することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the illuminating device which can form rod-shaped light (image) and has high utilization efficiency of the light which the light source emitted.

以下、本発明の一実施形態である照明装置について図面を参照しながら説明する。   Hereinafter, an illumination device according to an embodiment of the present invention will be described with reference to the drawings.

図１は、本実施形態の照明装置の外観を説明するための平面図である。図２は、図１に示した照明装置をＡ−Ａ´で切断した断面図である。   FIG. 1 is a plan view for explaining the appearance of the illumination device of the present embodiment. FIG. 2 is a cross-sectional view taken along the line AA ′ of the illumination device shown in FIG.

照明装置１００は、一般照明灯具、車両のバックライト照明装置、遊技機等の各種装置２００に設けられる照明装置であり、図１、図２に示すように、透明又は半透明の合成樹脂等の材料により形成された導光部材１０、導光部材１０に入射させる光を発光する光源２０（例えば、単色又はＲＧＢの三色のＬＥＤ、又は白熱電球）、金属板等により形成された反射板３０、及び、透明又は半透明の合成樹脂等の材料により形成されたカバー４０等を備えている。   The illuminating device 100 is an illuminating device provided in various devices 200 such as a general illumination lamp, a vehicle backlight illuminating device, and a gaming machine. As shown in FIGS. 1 and 2, a transparent or translucent synthetic resin or the like is used. A light guide member 10 made of a material, a light source 20 that emits light incident on the light guide member 10 (for example, a monochromatic or RGB three-color LED or an incandescent light bulb), a reflector 30 formed of a metal plate or the like. And a cover 40 formed of a material such as transparent or translucent synthetic resin.

図３は導光部材１０の斜視図である。図４は導光部材１０の側面図である。   FIG. 3 is a perspective view of the light guide member 10. FIG. 4 is a side view of the light guide member 10.

図２から図４に示すように、導光部材１０は、第１平面１１と、この第１平面１１に直交した第２平面１２と、この第２平面１２に対して所定角度ａ傾斜した傾斜面１３とにより規定される断面略直角三角形の略三角柱形状に形成されている。   As shown in FIGS. 2 to 4, the light guide member 10 includes a first plane 11, a second plane 12 orthogonal to the first plane 11, and an inclination inclined by a predetermined angle a with respect to the second plane 12. It is formed in a substantially triangular prism shape having a substantially right-angled cross section defined by the surface 13.

第１平面１１側には光源２０が配置されており、光源２０が発光した光が第１平面を介して導光部材１０に入射するようになっている。傾斜面１３には例えば傾斜面１３を所定ピッチ（例えば一定間隔０．２ｍｍ）でカットすることにより複数の個別反射面１３ａが形成されている。なお、不連続の間隔でカットすることにより個別反射面１３ａを形成してもよい。   A light source 20 is disposed on the first plane 11 side, and light emitted from the light source 20 enters the light guide member 10 through the first plane. A plurality of individual reflecting surfaces 13a are formed on the inclined surface 13, for example, by cutting the inclined surface 13 at a predetermined pitch (for example, a constant interval of 0.2 mm). In addition, you may form the separate reflective surface 13a by cutting at a discontinuous space | interval.

個別反射面１３ａは、光源２０から導光部材１０に入射した光を反射することにより棒状の光を出現させるための反射面である。個別反射面１３ａは、図２から図４に示すように、光源２０の光軸に対して略直交する方向（導光部材１０の幅方向）に延びており、かつ、光源２０の光軸に対して所定角度ａ（０〜９０度）傾斜した方向に配置されている。個別反射面１３ａは、例えば、光源２０の光軸に対して所定角度傾斜した傾斜平面である。なお、個別反射面１３ａと個別反射面１３ａの間には光源２０の光軸に対して略平行な個別平面１３ｂが形成されている。   The individual reflecting surface 13a is a reflecting surface for causing bar-like light to appear by reflecting light incident on the light guide member 10 from the light source 20. As shown in FIGS. 2 to 4, the individual reflecting surface 13 a extends in a direction substantially orthogonal to the optical axis of the light source 20 (the width direction of the light guide member 10), and extends along the optical axis of the light source 20. It is arranged in a direction inclined by a predetermined angle a (0 to 90 degrees). The individual reflecting surface 13a is, for example, an inclined plane inclined at a predetermined angle with respect to the optical axis of the light source 20. An individual plane 13b that is substantially parallel to the optical axis of the light source 20 is formed between the individual reflection surface 13a and the individual reflection surface 13a.

図４に示すように、光源２０から導光部材１０に入射した光は導光部材１０を通って各個別反射面１３ａに達して各個別反射面１３ａで反射する。これにより、図５に示すように、棒状の光Ｌ１（実像）が出現する。この棒状の光Ｌ１（実像）は、第２平面１２側に視点を置くと、図６（Ａ）（Ｂ）に示すように、所定角度（光源２０の光軸（又は第２平面１２）と傾斜面１３との間の角度ａに応じた角度Ａ）傾斜しているように視認される。この棒状の光Ｌ１（実像）の傾斜角度Ａは、光源２０の光軸（又は第２平面１２）と傾斜面１３との間の角度ａ（図２参照）を変更することで調整可能である。   As shown in FIG. 4, the light incident on the light guide member 10 from the light source 20 passes through the light guide member 10, reaches each individual reflection surface 13a, and is reflected by each individual reflection surface 13a. Thereby, as shown in FIG. 5, rod-shaped light L1 (real image) appears. When the point of view is placed on the second plane 12 side, the rod-shaped light L1 (real image) has a predetermined angle (with the optical axis of the light source 20 (or the second plane 12) as shown in FIGS. 6A and 6B). The angle A) according to the angle a with the inclined surface 13 is visually recognized as being inclined. The inclination angle A of the rod-shaped light L1 (real image) can be adjusted by changing the angle a (see FIG. 2) between the optical axis (or the second plane 12) of the light source 20 and the inclined surface 13. .

反射板３０は、その反射面３１によりこの出現した棒状の光Ｌ１（実像）を反射し虚像を作り出す。反射板３０（反射面３１）は、図２に示すように、傾斜面１３に対して所定角度ｂ（０〜９０度）傾斜した状態で配置されている。反射板３０（反射面３１）は、例えば、棒状の光Ｌ１（実像）に隣接する位置に棒状の光Ｌ２（虚像）が作られるように金属板を曲げ加工して形成されている。図７は、二つの光源２０により二つの棒状の光Ｌ１が出現したことを表しており、それぞれの棒状の光Ｌ１に隣接する位置に虚像を作り出すために、二つの反射面３１を配置した例である。   The reflecting plate 30 reflects the appearing rod-shaped light L1 (real image) by the reflecting surface 31 to create a virtual image. As shown in FIG. 2, the reflecting plate 30 (reflecting surface 31) is arranged in a state inclined by a predetermined angle b (0 to 90 degrees) with respect to the inclined surface 13. The reflecting plate 30 (reflecting surface 31) is formed, for example, by bending a metal plate so that the rod-shaped light L2 (virtual image) is formed at a position adjacent to the rod-shaped light L1 (real image). FIG. 7 shows that two rod-shaped lights L1 appear by the two light sources 20, and an example in which two reflecting surfaces 31 are arranged to create a virtual image at a position adjacent to each of the rod-shaped lights L1. It is.

棒状の光Ｌ１（実像）が反射面３１で反射すると、図７に示すように、棒状の光Ｌ１（実像）に隣接する位置に棒状の光Ｌ２（虚像）が作られる。この棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）の間隔は金属板の曲げ角度を変更することで調整可能である。   When the rod-shaped light L1 (real image) is reflected by the reflecting surface 31, a rod-shaped light L2 (virtual image) is created at a position adjacent to the rod-shaped light L1 (real image) as shown in FIG. The interval between the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image) can be adjusted by changing the bending angle of the metal plate.

この棒状の光Ｌ２（虚像）は、第２平面１２側に視点を置くと、図６（Ａ）（Ｂ）に示すように、所定角度（傾斜面１３と反射面との間の角度ｂに応じた角度Ｂ）傾斜しているように視認される。この棒状の光Ｌ２（虚像）は棒状の光Ｌ１（実像）とは逆方向に傾斜しているように視認される。   This rod-shaped light L2 (virtual image) is placed at a predetermined angle (an angle b between the inclined surface 13 and the reflecting surface) as shown in FIGS. 6A and 6B when the viewpoint is placed on the second plane 12 side. The corresponding angle B) is visually recognized as being inclined. This rod-shaped light L2 (virtual image) is visually recognized as being inclined in the opposite direction to the rod-shaped light L1 (real image).

すなわち、第２平面１２側に視点を置くと、棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）は、立体交差した奥行き感のある二本の棒状の光として視認される（図６（Ａ）（Ｂ）参照）。   That is, when the viewpoint is placed on the second plane 12 side, the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image) are visually recognized as two rod-shaped lights having a sense of depth that intersect three-dimensionally (FIG. 6). (See (A) and (B)).

この棒状の光Ｌ２（虚像）の傾斜角度Ｂは、傾斜面１３と反射面３１との間の角度ｂを変更することで調整可能である。なお、傾斜角度ａと傾斜角度ｂ（図２参照）を一致させると、棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）の傾斜角度Ａ、Ｂが略同一となる。   The inclination angle B of the rod-shaped light L2 (virtual image) can be adjusted by changing the angle b between the inclined surface 13 and the reflecting surface 31. When the inclination angle a and the inclination angle b (see FIG. 2) are matched, the inclination angles A and B of the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image) are substantially the same.

以上説明したように、本実施形態の照明装置１００によれば、光源２０の光軸に対して所定角度ａ傾斜した方向に配置された複数の個別反射面１３ａにより光源２０から導光部材１０に入射した光を反射することにより、この所定傾斜角度ａに応じた角度Ａ傾斜しているように視認される棒状の光Ｌ１（実像）を出現させることが可能となる。すなわち、本実施形態の照明装置１００によれば、光源２０による点発光を線発光（略面発光）である棒状の光Ｌ１（実像）に変換することが可能となる。   As described above, according to the illuminating device 100 of the present embodiment, the light guide member 10 is moved from the light source 20 to the light guide member 10 by the plurality of individual reflecting surfaces 13 a arranged in a direction inclined by the predetermined angle a with respect to the optical axis of the light source 20. By reflecting the incident light, it becomes possible to make the bar-shaped light L1 (real image) visually recognized as being inclined at an angle A corresponding to the predetermined inclination angle a. That is, according to the illuminating device 100 of this embodiment, it becomes possible to convert the point light emission by the light source 20 into the rod-shaped light L1 (real image) which is line light emission (substantially surface light emission).

また、本実施形態の照明装置１００によれば、光源２０が発光した光は導光部材１０に入射し導光部材１０を通って各個別反射面１３ａに達して各個別反射面１３ａで反射する。これにより、棒状の光Ｌ１が出現する。すなわち、従来と比較して各個別反射面１３ａに達する間に拡散する光が少なくなるので、光の利用効率を向上させることが可能となる。   Moreover, according to the illuminating device 100 of this embodiment, the light emitted from the light source 20 enters the light guide member 10, passes through the light guide member 10, reaches each individual reflection surface 13a, and is reflected by each individual reflection surface 13a. . Thereby, rod-shaped light L1 appears. That is, since the amount of light diffused while reaching the individual reflecting surfaces 13a is reduced as compared with the conventional case, the light use efficiency can be improved.

また、本実施形態の照明装置１００によれば、個別反射面１３ａは光源２０の光軸に対して所定角度傾斜した傾斜平面（断面が直線形状の反射面）であるので、特定の方向に発光強度を持つ棒状の光Ｌ１を出現させることが可能となる。   Moreover, according to the illuminating device 100 of the present embodiment, the individual reflecting surface 13a is an inclined plane (a reflecting surface having a linear cross section) inclined at a predetermined angle with respect to the optical axis of the light source 20, and therefore emits light in a specific direction. It becomes possible to make the bar-shaped light L1 having an intensity appear.

また、本実施形態の照明装置１００によれば、反射面３１を備えているので、光源２０が一つであっても複数の棒状の光Ｌ１、Ｌ２を視認させることが可能となる。すなわち、光の利用効率をさらに向上させることが可能となる。これにより、光源削減、コスト低下が可能となる。   Moreover, according to the illuminating device 100 of this embodiment, since the reflective surface 31 is provided, even if there is one light source 20, it becomes possible to visually recognize a plurality of rod-shaped lights L1 and L2. That is, the light utilization efficiency can be further improved. Thereby, light source reduction and cost reduction are possible.

また、本実施形態の照明装置１００によれば、傾斜面１３に対して所定角度ｂ傾斜した状態で配置された反射面３１により棒状の光Ｌ１（実像）を反射するので、この所定傾斜角度ｂに応じた角度Ｂ傾斜しているように視認される棒状の光Ｌ２（虚像）を作り出すことが可能となる。この棒状の光Ｌ２（虚像）は、棒状の光Ｌ１（実像）とは逆方向に傾斜しているように視認される。すなわち、本実施形態の照明装置１００によれば、棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）が立体交差しているように視認される奥行き感のある新規照明（像）を作り出すことが可能となる。   Moreover, according to the illuminating device 100 of this embodiment, since the rod-shaped light L1 (real image) is reflected by the reflecting surface 31 arranged in a state inclined at a predetermined angle b with respect to the inclined surface 13, this predetermined inclination angle b. Accordingly, it is possible to create a rod-shaped light L2 (virtual image) that is visually recognized as being inclined at an angle B. This rod-shaped light L2 (virtual image) is visually recognized as being inclined in the opposite direction to the rod-shaped light L1 (real image). That is, according to the illuminating device 100 of the present embodiment, a new illumination (image) having a sense of depth is generated so that the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image) are visually viewed as three-dimensionally intersecting. It becomes possible.

次に変形例について説明する。   Next, a modified example will be described.

本実施形態では、個別反射面１３ａは光源２０の光軸に対して所定角度傾斜した傾斜平面（断面が直線形状の反射面）であるように説明したが、本発明はこれに限定されない。例えば、図８に示すように、個別反射面１３ａとして断面が楕円形状の反射面を採用してもよい。あるいは個別反射面１３ａとして、断面が円形、又は、多角形の反射面を採用してもよい。このようにすれば、所定範囲Ｈに略均等な発光強度を持つ棒状の光Ｌ１を出現させることが可能となる。   In the present embodiment, the individual reflecting surface 13a is described as an inclined plane (a reflecting surface having a linear cross section) that is inclined at a predetermined angle with respect to the optical axis of the light source 20, but the present invention is not limited to this. For example, as shown in FIG. 8, a reflection surface having an elliptical cross section may be adopted as the individual reflection surface 13a. Alternatively, as the individual reflecting surface 13a, a reflecting surface having a circular cross section or a polygonal shape may be adopted. In this way, it is possible to cause the rod-shaped light L1 having a substantially uniform emission intensity in the predetermined range H to appear.

また、本実施形態では、反射板３０の反射面３１は平面（断面が直線形状の反射面）であるように説明したが、本発明はこれに限定されない。例えば、図９に示すように、反射面３１として断面が凹又は凸の楕円形状の反射面を採用してもよい。あるいは、図示しないが、反射面３１として断面が円形、又は、多角形の反射面を採用してもよい。例えば、反射面３１として断面が楕円形の凸反射面を採用することで、棒状の光Ｌ１（実像）より太い形状の棒状の光Ｌ２（虚像）を作り出すことが可能となる。また、棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）の間隔を調整することが可能となる。また例えば、反射面３１として断面が楕円形の凹反射面を採用することで、棒状の光Ｌ１（実像）より細い形状の棒状の光Ｌ２（虚像）を作り出すことが可能となる。また、棒状の光Ｌ１（実像）と棒状の光Ｌ２（虚像）の間隔を調整することが可能となる。   In the present embodiment, the reflection surface 31 of the reflection plate 30 has been described as a flat surface (a reflection surface having a linear cross section), but the present invention is not limited to this. For example, as shown in FIG. 9, an elliptical reflecting surface having a concave or convex cross section may be adopted as the reflecting surface 31. Alternatively, although not shown, a reflective surface having a circular or polygonal cross section may be adopted as the reflective surface 31. For example, by adopting a convex reflecting surface having an elliptical cross section as the reflecting surface 31, it becomes possible to create a rod-shaped light L2 (virtual image) that is thicker than the rod-shaped light L1 (real image). It is also possible to adjust the interval between the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image). Further, for example, by adopting a concave reflecting surface having an elliptical cross section as the reflecting surface 31, it becomes possible to create a rod-shaped light L2 (virtual image) having a narrower shape than the rod-shaped light L1 (real image). It is also possible to adjust the interval between the rod-shaped light L1 (real image) and the rod-shaped light L2 (virtual image).

また、本実施形態では、傾斜面１３には一定間隔０．２ｍｍで複数の個別反射面１３ａが形成されているように説明したが本発明はこれに限定されない。例えば、一定間隔２ｍｍ、あるいは、２ｃｍで複数の個別反射面１３ａを形成してもよい。このようにすれば、図１０に示すように、点線状の棒状の光Ｌ１を出現させることが可能となる。   In the present embodiment, the inclined surface 13 has been described as having a plurality of individual reflecting surfaces 13a formed at a constant interval of 0.2 mm. However, the present invention is not limited to this. For example, a plurality of individual reflecting surfaces 13a may be formed at a constant interval of 2 mm or 2 cm. In this way, as shown in FIG. 10, it becomes possible to make the dotted line-shaped light L1 appear.

上記実施形態はあらゆる点で単なる例示にすぎない。これらの記載によって本発明は限定的に解釈されるものではない。本発明はその精神または主要な特徴から逸脱することなく他の様々な形で実施することができる。   The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

本実施形態の照明装置の外観を説明するための平面図である。It is a top view for demonstrating the external appearance of the illuminating device of this embodiment. 図１に示した照明装置をＡ−Ａ´で切断した断面図である。It is sectional drawing which cut | disconnected the illuminating device shown in FIG. 1 by AA '. 導光部材１０の斜視図である。2 is a perspective view of a light guide member 10. FIG. 導光部材１０の側面図である。3 is a side view of the light guide member 10. FIG. 出現した棒状の光Ｌ１（実像）を説明するための図である。It is a figure for demonstrating the rod-shaped light L1 (real image) which appeared. 出現した棒状の光Ｌ１（実像）、Ｌ２（虚像）との関係を説明するための図である。It is a figure for demonstrating the relationship with the rod-shaped light L1 (real image) and L2 (virtual image) which appeared. 図１に示した照明装置をＢ−Ｂ´で切断した断面図である。It is sectional drawing which cut | disconnected the illuminating device shown in FIG. 1 by BB '. 導光部材１０の変形例を説明するための図である。It is a figure for demonstrating the modification of the light guide member. 反射板３０の変形例を説明するための図である。It is a figure for demonstrating the modification of the reflecting plate. 反射板３０の変形例を説明するための図である。It is a figure for demonstrating the modification of the reflecting plate.

符号の説明Explanation of symbols

１０…導光部材、１１…第１平面、１２…平面、１３…傾斜面、１３ａ…個別反射面、１３ｂ…個別平面、２０…光源、３０…反射板、３１…反射面、４０…カバー、１００…照明装置、２００…各種装置 DESCRIPTION OF SYMBOLS 10 ... Light guide member, 11 ... 1st plane, 12 ... Plane, 13 ... Inclined surface, 13a ... Individual reflective surface, 13b ... Individual plane, 20 ... Light source, 30 ... Reflector plate, 31 ... Reflective surface, 40 ... Cover, 100 ... lighting device, 200 ... various devices

Claims (6)

透明又は半透明材料により形成された導光部材と、
前記導光部材に入射させる光を発光する光源と、
前記導光部材に形成されており、前記光源から前記導光部材に入射した光を反射する複数の個別反射面と、
を備えており、
前記複数の個別反射面は、前記光源の光軸に対して略直交する方向に延びており、かつ、前記光源の光軸に対して所定角度傾斜した方向に配置されており、前記光源から前記導光部材に入射した光を反射することにより棒状の光を出現させることを特徴とする照明装置。 A light guide member formed of a transparent or translucent material;
A light source that emits light incident on the light guide member;
A plurality of individual reflecting surfaces that are formed on the light guide member and reflect light incident on the light guide member from the light source;
With
The plurality of individual reflecting surfaces extend in a direction substantially orthogonal to the optical axis of the light source, and are disposed in a direction inclined at a predetermined angle with respect to the optical axis of the light source. An illuminating device characterized by causing bar-shaped light to appear by reflecting light incident on a light guide member. 前記出現した棒状の光を反射し前記棒状の光の虚像を作り出す反射面をさらに備えることを特徴とする請求項１に記載の照明装置。   The illumination device according to claim 1, further comprising a reflection surface that reflects the appearing rod-shaped light to create a virtual image of the rod-shaped light. 前記導光部材は、少なくとも前記光源が発光した光が入射する第１平面と、前記第１平面に直交する第２平面と、前記第２平面に対して所定角度傾斜した傾斜面とにより規定される略三角柱の形状であり、
前記複数の個別反射面は、前記傾斜面に形成されており、
前記反射面は、前記傾斜面に対して所定角度傾斜した状態で配置されていることを特徴とする請求項２に記載の照明装置。 The light guide member is defined by at least a first plane on which light emitted from the light source is incident, a second plane orthogonal to the first plane, and an inclined surface inclined at a predetermined angle with respect to the second plane. The shape of a roughly triangular prism,
The plurality of individual reflecting surfaces are formed on the inclined surface,
The lighting device according to claim 2, wherein the reflecting surface is arranged in a state inclined at a predetermined angle with respect to the inclined surface. 前記複数の個別傾斜面の断面が直線、円形、楕円形、又は、多角形のうちのいずれかであることを特徴とする請求項１から３のいずれかに記載の照明装置。   The lighting device according to any one of claims 1 to 3, wherein a cross section of each of the plurality of individual inclined surfaces is any one of a straight line, a circle, an ellipse, and a polygon. 前記反射面の断面が直線、円形、楕円形、又は、多角形のうちのいずれかであることを特徴とする請求項１から４のいずれかに記載の照明装置。   5. The lighting device according to claim 1, wherein a cross section of the reflecting surface is any one of a straight line, a circle, an ellipse, and a polygon. 光源から入射した光を反射することにより棒状の光を出現させる透明又は半透明材料により形成された導光部材において、
前記光源から入射した光を反射する複数の個別反射面を備えており、
前記複数の個別反射面は、前記光源の光軸に対して略直交する方向に延びており、かつ、前記光源の光軸に対して所定角度傾斜した方向に配置されていることを特徴とする棒状光形成用導光部材。 In a light guide member formed of a transparent or translucent material that makes bar-like light appear by reflecting light incident from a light source,
A plurality of individual reflecting surfaces for reflecting light incident from the light source;
The plurality of individual reflecting surfaces extend in a direction substantially orthogonal to the optical axis of the light source and are arranged in a direction inclined by a predetermined angle with respect to the optical axis of the light source. A light guide member for forming a rod-shaped light.
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