JP6868816B2 - Light guides, lighting devices, electronic devices - Google Patents

Light guides, lighting devices, electronic devices Download PDF

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JP6868816B2
JP6868816B2 JP2017016014A JP2017016014A JP6868816B2 JP 6868816 B2 JP6868816 B2 JP 6868816B2 JP 2017016014 A JP2017016014 A JP 2017016014A JP 2017016014 A JP2017016014 A JP 2017016014A JP 6868816 B2 JP6868816 B2 JP 6868816B2
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open end
light
end side
light guide
light emitting
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JP2018125146A (en
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直人 多田
直人 多田
レティポープ ナムウィチャイ
レティポープ ナムウィチャイ
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Panasonic Intellectual Property Management Co Ltd
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Description

本発明は、照明技術に関し、特に配光を制御する導光体、照明装置、電子機器に関する。 The present invention relates to a lighting technique, and more particularly to a light guide, a lighting device, and an electronic device for controlling light distribution.

導光体を備えた照明装置では、光源からの光が導光体の入射面から入射し、光を他方へ効率よく導き、光を導光体の外に出射する面（発光面）から光を均質に照射される。このような照明装置において導光体をライン状に発光させることが求められる場合がある。例えば、光源の前方に配置された導光体は、入射面からの光を左右方向に沿うように内部反射させる複数の第１反射面と、複数の第１反射面で内部反射された光を前方に内部反射させる複数の第２出射面とを備える。さらに、第２反射面で内部反射された光は出射面から前方に出射される（例えば、特許文献１参照）。 In a lighting device provided with a light guide, light from a light source enters from an incident surface of the light source, efficiently guides the light to the other, and emits light from a surface (light emitting surface) that emits light to the outside of the light guide. Is uniformly irradiated. In such a lighting device, it may be required to make the light guide body emit light in a line shape. For example, a light guide arranged in front of a light source has a plurality of first reflecting surfaces that internally reflect light from an incident surface along the left-right direction, and light internally reflected by the plurality of first reflecting surfaces. It is provided with a plurality of second exit surfaces that are internally reflected forward. Further, the light internally reflected by the second reflecting surface is emitted forward from the emitting surface (see, for example, Patent Document 1).

特開２０１３−４５６０９号公報Japanese Unexamined Patent Publication No. 2013-45609

導光体の発光面は光源の近くの部分において最も輝度が高くなり、光源から離れるほど輝度が低くなるので、１つの発光面の中で輝度の高低差が生じる。この輝度の高低差は、発光面の輝度ムラとして現れる。また、光を出射する発光面について、光源と対向する位置にある発光面以外にも光源と光が出射される方向とは異なった方向を向いた発光面が必要とされる場合がある。 The light emitting surface of the light guide has the highest brightness in the portion near the light source, and the brightness becomes lower as the distance from the light source increases, so that there is a difference in brightness within one light emitting surface. This difference in brightness appears as uneven brightness on the light emitting surface. Further, as for the light emitting surface that emits light, a light emitting surface that faces a direction different from the direction in which the light source and the light are emitted may be required in addition to the light emitting surface that is located at a position facing the light source.

本発明はこうした状況に鑑みてなされたものであり、その目的は、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制する技術を提供することにある。 The present invention has been made in view of such a situation, and an object of the present invention is to provide a technique for suppressing luminance unevenness on a light emitting surface facing a direction different from the direction in which light is emitted from a light source.

上記課題を解決するために、本発明のある態様の導光体は、互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、第１開放端側面と第２開放端側面の上側において上側を向いて配置される天面と、第１開放端側面と第２開放端側面の下側において下側を向いて配置される底面と、天面と底面との間において、第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える。導光部における外側側面の突出した入射部から導光部の内部には、少なくとも第１方向に向かう光が入射され、発光部の上側に配置される発光面が発光する。 In order to solve the above problems, the light guide bodies of an embodiment of the present invention have a first open end side surface, a second open end side surface, and a first open end side that are arranged in the horizontal direction facing the same first direction. A top surface arranged facing upward on the upper side of the side surface and the second open end side surface, a bottom surface arranged facing downward on the lower side of the first open end side surface and the second open end side surface, and a top surface. Between the bottom surface and the inner side surface protruding in the opposite direction from the first open end side surface and the second open end side surface, and facing the opposite direction to at least a part of the inner side surface while projecting in the same second direction as the inner side surface. comprising a light guide portion having an outer side surface which is arranged in the top surface of the light guide section, and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a first open end side surface and a second open end side surface. Light directed in at least the first direction is incident on the inside of the light guide portion from the incident portion on the outer side surface of the light guide portion, and the light emitting surface arranged on the upper side of the light emitting portion emits light .

本発明の別の態様は、照明装置である。この装置は、互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、第１開放端側面と第２開放端側面の上側において上側を向いて配置される天面と、第１開放端側面と第２開放端側面の下側において下側を向いて配置される底面と、天面と底面との間において、第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、導光体における外側側面の突出した入射部に対向して配置される光源とを備える。入射部から導光部の内部には、少なくとも第１方向に向かう光が光源から入射され、発光部の上側に配置される発光面が発光する。
本発明のさらに別の態様もまた、照明装置である。この装置は、互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、第１開放端側面と第２開放端側面の上側において上側を向いて配置される天面と、第１開放端側面と第２開放端側面の下側において下側を向いて配置される底面と、天面と底面との間において、第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、導光体における外側側面の突出した入射部に対向して配置される光源とを備える。光源から、外側側面と内側側面とを貫通して発光部に至る第１経路と、光源から、外側側面を貫通して、外側側面と内側側面との間を拡散しながら発光部に至る第２経路と、光源から、外側側面に沿って発光部に至る第３経路をと含む。 Another aspect of the present invention is a lighting device. This device is arranged so as to face upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged side by side facing the same first direction. The first open end side surface and the second open end surface are arranged between the top surface and the bottom surface, which are arranged facing downward on the lower side of the first open end side surface and the second open end side surface. A light guide portion having an inner side surface protruding in the opposite direction from the end side surface, and an outer side surface protruding in the same second direction as the inner side surface and arranged in the opposite direction to at least a part of the inner side surface, and a light guide unit. in the top surface of the incident portion protruding outside the side surface of the first open end side surface and a light guide and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a second open end side surface, the light guide It is provided with a light source arranged opposite to the light source. Light directed in at least the first direction is incident from the light source into the inside of the light guide portion from the incident portion, and the light emitting surface arranged above the light emitting portion emits light .
Yet another aspect of the present invention is also a luminaire. This device is arranged so as to face upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged side by side facing the same first direction. The first open end side surface and the second open end surface are arranged between the top surface and the bottom surface, which are arranged facing downward on the lower side of the first open end side surface and the second open end side surface. A light guide portion having an inner side surface protruding in the opposite direction from the end side surface, and an outer side surface protruding in the same second direction as the inner side surface and arranged in the opposite direction to at least a part of the inner side surface, and a light guide unit. A light guide body having a column-shaped light emitting portion extending in the lateral direction while straddling the side surface side of the first open end and the side surface side of the second open end, and a protruding incident portion on the outer side surface of the light guide body. It is provided with a light source arranged opposite to the light source. The first path from the light source to the light emitting portion through the outer side surface and the inner side surface, and the second path from the light source to the light emitting portion while penetrating the outer side surface and diffusing between the outer side surface and the inner side surface. It includes a path and a third path from the light source to the light emitting part along the outer side surface.

本発明のさらに別の態様は、電子機器である。この電子機器は、互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、第１開放端側面と第２開放端側面の上側において上側を向いて配置される天面と、第１開放端側面と第２開放端側面の下側において下側を向いて配置される底面と、天面と底面との間において、第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、導光体における外側側面の突出した入射部に対向して配置される光源とを備える。入射部から導光部の内部には、少なくとも第１方向に向かう光が光源から入射され、発光部の上側に配置される発光面が発光する。 Yet another aspect of the present invention is an electronic device. This electronic device faces upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged side by side facing the same first direction. The first open end side surface and the second between the top surface to be arranged, the bottom surface arranged to face downward on the lower side of the first open end side surface and the second open end side surface, and the top surface and the bottom surface . A light guide portion having an inner side surface protruding in the opposite direction from the open end side surface, and an outer side surface protruding in the same second direction as the inner side surface and arranged in the opposite direction to at least a part of the inner side surface, and a light guide. in the top surface of the section, a light guide body and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a first open end side surface and a second open end side face, the incident that protrudes outside the side surface of the light guide body and a light source disposed opposite to the part. Light directed in at least the first direction is incident from the light source into the inside of the light guide portion from the incident portion, and the light emitting surface arranged above the light emitting portion emits light .

本発明によれば、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制できる。 According to the present invention, it is possible to suppress uneven brightness on a light emitting surface facing a direction different from the direction in which light is emitted from a light source.

図１（ａ）−（ｃ）は、実施例に係る電子機器の構造を示す図である。1 (a)-(c) are views showing the structure of the electronic device according to the embodiment. 図２（ａ）−（ｂ）は、図１（ａ）−（ｃ）の電子機器の構造を示す部分断面図である。2 (a)-(b) are partial cross-sectional views showing the structure of the electronic device of FIGS. 1 (a)-(c). 図３（ａ）−（ｂ）は、実施例に係る導光体、基板、光源の構造を示す斜視図である。3 (a)-(b) are perspective views showing the structures of the light guide body, the substrate, and the light source according to the embodiment. 図４（ａ）−（ｃ）は、図３（ａ）−（ｂ）の導光体、基板、光源の構造を示す図である。4 (a)-(c) are views showing the structures of the light guide body, the substrate, and the light source of FIGS. 3 (a)-(b). 図５（ａ）−（ｅ）は、図３（ａ）−（ｂ）の導光体、基板、光源によって形成される光路を示す図である。5 (a)-(e) is a diagram showing an optical path formed by the light guide, the substrate, and the light source of FIGS. 3 (a)-(b).

本実施例を具体的に説明する前に、基礎となった知見を説明する。本発明の実施例は、導光体によりライン状に発光する照明装置を備える電子機器に関する。前述のごとく、ライン状の発光面では、光源の近くの部分において最も輝度が高くなり、光源から離れるほど輝度が低くなることによって、発光面の輝度ムラが生じる。この輝度ムラを抑制するためには、ライン状の長手方向に沿って複数の光源を配置することが有効であるが、複数の光源が必要になる。しかしながら、電子機器の重量や使用電力を考えると電子機器にとってこれは好ましくない。また、複数の光源によって照明装置のコストも増加してしまうので望ましくない。さらに、電子機器の構造によっては、導光体の発光面が、光源から光が出射される方向とは異なった方向を向くこともある。 Before concretely explaining this embodiment, the basic findings will be explained. An embodiment of the present invention relates to an electronic device including a lighting device that emits light in a line by a light guide. As described above, in the line-shaped light emitting surface, the brightness is highest in the portion near the light source, and the brightness becomes lower as the distance from the light source increases, so that the brightness unevenness of the light emitting surface occurs. In order to suppress this luminance unevenness, it is effective to arrange a plurality of light sources along the longitudinal direction of the line, but a plurality of light sources are required. However, considering the weight and power consumption of the electronic device, this is not preferable for the electronic device. In addition, the cost of the lighting device is increased by the plurality of light sources, which is not desirable. Further, depending on the structure of the electronic device, the light emitting surface of the light guide may be oriented in a direction different from the direction in which the light is emitted from the light source.

本実施例においては、導光体におけるライン状の発光面が、光源から光が出射される方向とは異なった方向を向く場合であり、かつ少数の光源だけを備える場合であっても、輝度ムラを抑制することを目的とする。なお、以下の説明において、「平行」、「直交」は、完全な平行、直交だけではなく、誤差の範囲で平行、直交からずれている場合も含むものとする。また、「略」は、おおよその範囲で同一であるという意味である。 In this embodiment, the brightness of the linear light emitting surface of the light guide body is different from the direction in which the light is emitted from the light source, and even when only a small number of light sources are provided. The purpose is to suppress unevenness. In the following description, "parallel" and "orthogonal" include not only perfectly parallel and orthogonal, but also cases where they are deviated from parallel and orthogonal within the margin of error. In addition, "abbreviation" means that they are the same in an approximate range.

図１（ａ）−（ｃ）は、電子機器１００の構造を示す。図１（ａ）−（ｃ）に示すように、ｘ軸、ｙ軸、ｚ軸からなる直交座標系が規定される。ｘ軸、ｙ軸は互いに直交する。ｚ軸は、ｘ軸およびｙ軸に垂直であり、電子機器１００の高さ方向に延びる。また、ｘ軸、ｙ軸、ｚ軸のそれぞれの正の方向は、図１（ａ）−（ｃ）における矢印の方向に規定され、負の方向は、矢印と逆向きの方向に規定される。ここでは、ｚ軸の正方向を「上方」、「上側」、「上面側」、ｚ軸の負方向を「下方」、「下側」、「下面側」、ｘ軸の正方向を「前方」、「前側」、「前面側」、ｘ軸の負方向を「後方」、「後側」、「後面側」ということもある。そのため、図１（ａ）は電子機器１００の斜視図であり、図１（ｂ）は電子機器１００の前面を示す正面図であり、図１（ｃ）は電子機器１００を前方のななめ上方から見た場合の図である。 1 (a)-(c) show the structure of the electronic device 100. As shown in FIGS. 1 (a)-(c), a Cartesian coordinate system including an x-axis, a y-axis, and a z-axis is defined. The x-axis and y-axis are orthogonal to each other. The z-axis is perpendicular to the x-axis and the y-axis and extends in the height direction of the electronic device 100. Further, the positive directions of the x-axis, the y-axis, and the z-axis are defined in the directions of the arrows in FIGS. 1 (a)-(c), and the negative directions are defined in the directions opposite to the arrows. .. Here, the positive direction of the z-axis is "upper", "upper", "upper surface side", the negative direction of the z-axis is "downward", "lower side", "lower surface side", and the positive direction of the x-axis is "forward". , "Front side", "front side", and the negative direction of the x-axis may be referred to as "rear", "rear side", and "rear side". Therefore, FIG. 1A is a perspective view of the electronic device 100, FIG. 1B is a front view showing the front surface of the electronic device 100, and FIG. 1C is a front view of the electronic device 100 from above the front lick. It is a figure when seen.

電子機器１００の一例は、車載用のオーディオデッキである。電子機器１００の後方には、箱形状の筐体１０が配置され、筐体１０の前方に板形状の前面パネル１２が接続される。筐体１０は、電子機器１００における電子部品を収納しており、例えば、ＣＤ（Ｃｏｍｐａｃｔ Ｄｉｓｃ）、ＤＶＤ（Ｄｉｇｉｔａｌ Ｖｅｒｓａｔｉｌｅ Ｄｉｓｃ）、ＢＤ（Ｂｌｕ−ｒａｙ（登録商標） Ｄｉｓｃ）等のディスクを再生あるいは記録するための電子部品や電子機器１００の動作に必要な電子部品などを収納する。そのため、電子機器１００は、これらの電子部品を収納したカーナビゲーション装置であってもよい。 An example of the electronic device 100 is an in-vehicle audio deck. A box-shaped housing 10 is arranged behind the electronic device 100, and a plate-shaped front panel 12 is connected to the front of the housing 10. The housing 10 houses electronic components in the electronic device 100, and for example, plays or records a disc such as a CD (Compact Disc), a DVD (Digital Versailles Disc), or a BD (Blu-ray (registered trademark) Disc). The electronic parts for the operation and the electronic parts necessary for the operation of the electronic device 100 are stored. Therefore, the electronic device 100 may be a car navigation device that houses these electronic components.

前面パネル１２は、ｚ軸方向よりもｙ軸方向に長い矩形状の平面を有する。前面パネル１２の下方には、ｙ軸方向に長く開口した挿入口１４が配置される。挿入口１４においてディスクの挿入および排出がなされる。本実施例においては、例えば、ディスクを挿入する際、あるいはディスクを排出する際に、挿入口１４の内部に配置される発光面４０が発光する。以下では、挿入口１４の内部の発光を説明するために、図２（ａ）−（ｂ）を使用しながら電子機器１００の内部構造を説明する。なお、図１の筐体１０と前面パネル１２のｚ軸方向の高さは同じでもよく、さらに、ｙ軸方向も同じ長さであってもよい。 The front panel 12 has a rectangular plane that is longer in the y-axis direction than in the z-axis direction. An insertion port 14 having a long opening in the y-axis direction is arranged below the front panel 12. The disc is inserted and ejected at the insertion slot 14. In this embodiment, for example, when the disc is inserted or when the disc is ejected, the light emitting surface 40 arranged inside the insertion port 14 emits light. Hereinafter, in order to explain the light emission inside the insertion slot 14, the internal structure of the electronic device 100 will be described with reference to FIGS. 2 (a)-(b). The height of the housing 10 and the front panel 12 in FIG. 1 in the z-axis direction may be the same, and the height in the y-axis direction may also be the same.

図２（ａ）−（ｂ）は、電子機器１００の構造を示す部分断面図であり、図１（ａ）のＡ−Ａ’線に沿った断面図である。前面側に配置された挿入口１４の後方には、収納部２４が形成される。収納部２４は、筐体１０における下面１６と上面１８とによって挟まれた空間であり、再生あるいは記録するためのディスクを収納可能である。挿入口１４および収納部２４の構造には公知の技術が使用されればよいので、ここでは説明を省略するが、下面１６は、ｘ−ｙ平面に広がる上方向きの面であり、上面１８は、ｘ−ｙ平面に広がる下方向きの面である。そのため、下面１６と上面１８とは対向して配置される。 2 (a)-(b) are partial cross-sectional views showing the structure of the electronic device 100, and are cross-sectional views taken along the line AA'of FIG. 1 (a). A storage portion 24 is formed behind the insertion port 14 arranged on the front side. The storage unit 24 is a space sandwiched between the lower surface 16 and the upper surface 18 of the housing 10, and can store a disc for reproduction or recording. Since a known technique may be used for the structure of the insertion port 14 and the storage portion 24, description thereof will be omitted here, but the lower surface 16 is an upward surface extending in an xy plane, and the upper surface 18 is an upward surface. , An downward plane that extends in the xy plane. Therefore, the lower surface 16 and the upper surface 18 are arranged so as to face each other.

下面１６の前方部分かつｙ軸方向の中央部分には、ｘ軸方向よりもｙ軸方向に長い矩形状の開口部２０が、下面１６をｚ軸方向に貫通するように設けられる。開口部２０には、下方から導光体３０が嵌め込まれ、導光体３０の発光面４０が開口部２０から露出する。開口部２０への嵌め込みによって、発光面４０は下面１６と略面一になるように配置される。ここで、発光面４０は、開口部２０の形状に合うようなｘ軸方向よりもｙ軸方向に長い矩形状の面であり、前述のライン状の面である。 A rectangular opening 20 longer in the y-axis direction than in the x-axis direction is provided in the front portion and the central portion in the y-axis direction of the lower surface 16 so as to penetrate the lower surface 16 in the z-axis direction. The light guide body 30 is fitted into the opening 20 from below, and the light emitting surface 40 of the light guide body 30 is exposed from the opening 20. By fitting into the opening 20, the light emitting surface 40 is arranged so as to be substantially flush with the lower surface 16. Here, the light emitting surface 40 is a rectangular surface that is longer in the y-axis direction than the x-axis direction so as to match the shape of the opening 20, and is the above-mentioned line-shaped surface.

導光体３０の形状については後述するが、導光体３０は発光面４０から下方に延び、さらに後方に延びる。導光体３０の最後方の部分には入射部４２が配置される。入射部４２から後方に離間した位置には板形状の基板３２が配置されるとともに、基板３２上に配置された１つの光源３４は入射部４２に対向する。入射部４２には、例えば、ＬＥＤ（Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）である光源３４からの光が入射される。このような構造から明らかなように、光源３４からｘ軸の正方向に出射された光は、ｚ軸の正方向を向いた発光面４０から出射される。つまり、光源３４から光が出射される方向と、発光面４０が向く方向とは異なる。そのための光の向きの変更は導光体３０においてなされる。 The shape of the light guide body 30 will be described later, but the light guide body 30 extends downward from the light emitting surface 40 and further extends rearward. An incident portion 42 is arranged at the rearmost portion of the light guide body 30. A plate-shaped substrate 32 is arranged at a position separated rearward from the incident portion 42, and one light source 34 arranged on the substrate 32 faces the incident portion 42. Light from a light source 34, which is an LED (Light Emitting Diode), is incident on the incident portion 42, for example. As is clear from such a structure, the light emitted from the light source 34 in the positive direction of the x-axis is emitted from the light emitting surface 40 facing the positive direction of the z-axis. That is, the direction in which light is emitted from the light source 34 and the direction in which the light emitting surface 40 faces are different. The direction of the light for that purpose is changed in the light guide body 30.

ここで、導光体３０の前方には、前面パネル１２の内壁が遮光部２２として配置される。遮光部２２は後方を向いており、そのｙ−ｚ平面の広さは導光体３０のｙ−ｚ平面の広さよりも広い。そのため、導光体３０から前方に出射される光、つまり発光面４０の向きとは異なった方向に出射される光は、遮光部２２によって遮蔽される。これにより、前面パネル１２の前面から光は出射されない。 Here, in front of the light guide body 30, the inner wall of the front panel 12 is arranged as a light-shielding portion 22. The light-shielding portion 22 faces rearward, and the width of the yz plane thereof is wider than the width of the yz plane of the light guide body 30. Therefore, the light emitted forward from the light guide body 30, that is, the light emitted in a direction different from the direction of the light emitting surface 40 is blocked by the light shielding unit 22. As a result, no light is emitted from the front surface of the front panel 12.

図３（ａ）−（ｂ）は、導光体３０、基板３２、光源３４の構造を示す斜視図である。図４（ａ）−（ｃ）は、導光体３０、基板３２、光源３４の構造を示す。これらは、図２（ａ）−（ｂ）における導光体３０、基板３２、光源３４だけを示す。導光体３０、基板３２、光源３４の組合せは発光装置とも呼ばれる。なお、発光装置には、図２（ｂ）の遮光部２２が含まれてもよい。図３（ａ）−（ｂ）は互いに異なった方向から見た場合の斜視図であり、図４（ａ）は前方から見た場合の正面図であり、図４（ｂ）は下方から見た場合の下面図であり、図４（ｃ）は側面から見た場合の側面図である。 3 (a)-(b) are perspective views showing the structures of the light guide body 30, the substrate 32, and the light source 34. 4 (a)-(c) show the structures of the light guide body 30, the substrate 32, and the light source 34. These show only the light guide body 30, the substrate 32, and the light source 34 in FIGS. 2 (a)-(b). The combination of the light guide body 30, the substrate 32, and the light source 34 is also called a light emitting device. The light emitting device may include the light-shielding portion 22 shown in FIG. 2 (b). 3 (a)-(b) are perspective views when viewed from different directions, FIG. 4 (a) is a front view when viewed from the front, and FIG. 4 (b) is a view from below. FIG. 4C is a side view when viewed from the side.

導光体３０は、導光部７０、発光部７２、第１取付板部７４、第２取付板部７６を含む。また、導光部７０は、第１開放端側面５０、第２開放端側面５２、内側側面５４、外側側面５６、天面５８、底面６０を含み、第１取付板部７４は第１取付孔７８を含み、第２取付板部７６は第２取付孔８０を含む。導光部７０、発光部７２、第１取付板部７４、第２取付板部７６は、プラスチック等の合成樹脂によって一体的に形成され、かつ光拡散剤を含んで形成される。そのため、例えば、導光体３０は、乳白色のような非透明性を有する。 The light guide body 30 includes a light guide unit 70, a light emitting unit 72, a first mounting plate portion 74, and a second mounting plate portion 76. Further, the light guide portion 70 includes a first open end side surface 50, a second open end side surface 52, an inner side surface 54, an outer side surface 56, a top surface 58, and a bottom surface 60, and the first mounting plate portion 74 is a first mounting hole. 78 is included, and the second mounting plate portion 76 includes a second mounting hole 80. The light guide portion 70, the light emitting portion 72, the first mounting plate portion 74, and the second mounting plate portion 76 are integrally formed of a synthetic resin such as plastic, and are formed including a light diffusing agent. Therefore, for example, the light guide body 30 has non-transparency such as milky white.

第１開放端側面５０と第２開放端側面５２は、互いに同一の第１方向であるｘ軸の正方向を向いて、ｙ軸方向に離間して並べられる。第１開放端側面５０と第２開放端側面５２は、いずれも略矩形状を有する。第１開放端側面５０と第２開放端側面５２において互いに近接した方の縁部からｘ軸の負方向に、内側側面５４が突出する。内側側面５４はｘ−ｙ平面においてＶ字型を有し、ｚ軸方向に延びる壁部である。また、内側側面５４と同一の第２方向であるｘ軸の負方向に突出した外側側面５６は、内側側面５４の少なくとも一部と反対方向を向いて並べられる。外側側面５６も、内側側面５４と同様にｘ−ｙ平面においてＶ字型を有するので、ｘ−ｙ平面において内側側面５４と外側側面５６とに挟まれて形成される導光部７０もＶ字型を有する。ここで、外側側面５６の突出した部分が入射部４２に相当する。また、導光部７０におけるｚ軸の正方向側のｘ−ｙ平面が天面５８であり、ｚ軸の負方向側のｘ−ｙ平面が底面６０である。 The first open end side surface 50 and the second open end side surface 52 are arranged so as to face the positive direction of the x-axis, which is the same first direction as each other, and are separated from each other in the y-axis direction. Both the first open end side surface 50 and the second open end side surface 52 have a substantially rectangular shape. The inner side surface 54 projects in the negative direction of the x-axis from the edges of the first open end side surface 50 and the second open end side surface 52 that are close to each other. The inner side surface 54 has a V shape in the xy plane and is a wall portion extending in the z-axis direction. Further, the outer side surface 56 protruding in the negative direction of the x-axis, which is the same second direction as the inner side surface 54, is arranged so as to face at least a part of the inner side surface 54 in the opposite direction. Since the outer side surface 56 also has a V shape in the xy plane like the inner side surface 54, the light guide portion 70 formed between the inner side surface 54 and the outer side surface 56 in the xy plane is also V-shaped. Has a mold. Here, the protruding portion of the outer side surface 56 corresponds to the incident portion 42. Further, the xy plane on the positive direction side of the z-axis in the light guide unit 70 is the top surface 58, and the xy plane on the negative direction side of the z-axis is the bottom surface 60.

発光部７２は、ｙ軸方向に延びる柱形状を有し、導光部７０の天面５８におけるｘ軸の正方向側で、第１開放端側面５０側と第２開放端側面５２側とを跨ぐように配置される。発光部７２のｚ軸の正方向側の面が発光面４０である。導光体３０のｘ軸の正方向側、かつｙ軸の負方向側には、板形状を有する第１取付板部７４が配置され、導光体３０のｘ軸の正方向側、かつｙ軸の正方向側には、板形状を有する第２取付板部７６が配置される。第１取付板部７４にはｘ軸方向に貫通した第１取付孔７８が設けられ、第２取付板部７６にはｘ軸方向に貫通した第２取付孔８０が設けられる。 The light emitting portion 72 has a pillar shape extending in the y-axis direction, and has a first open end side surface 50 side and a second open end side surface 52 side on the positive direction side of the x-axis on the top surface 58 of the light guide portion 70. Arranged to straddle. The surface of the light emitting unit 72 on the positive direction side of the z-axis is the light emitting surface 40. The first mounting plate portion 74 having a plate shape is arranged on the positive direction side of the x-axis of the light guide body 30 and the negative direction side of the y-axis, and is on the positive direction side of the x-axis of the light guide body 30 and y. A second mounting plate portion 76 having a plate shape is arranged on the positive direction side of the shaft. The first mounting plate portion 74 is provided with a first mounting hole 78 penetrating in the x-axis direction, and the second mounting plate portion 76 is provided with a second mounting hole 80 penetrating in the x-axis direction.

導光体３０における第１開放端側面５０と第２開放端側面５２とに対向するように、図２（ｂ）の遮光部２２が配置される。前述のごとく、遮光部２２は前面パネル１２の内壁である。ここで、第１取付孔７８と第２取付孔８０とにネジを通すことによって、第１取付板部７４と第２取付板部７６とが前面パネル１２の内壁に固定される。その結果、導光体３０が固定される。 The light-shielding portion 22 of FIG. 2B is arranged so as to face the first open end side surface 50 and the second open end side surface 52 of the light guide body 30. As described above, the light-shielding portion 22 is the inner wall of the front panel 12. Here, the first mounting plate portion 74 and the second mounting plate portion 76 are fixed to the inner wall of the front panel 12 by passing screws through the first mounting hole 78 and the second mounting hole 80. As a result, the light guide body 30 is fixed.

前述のごとく、光源３４は、基板３２上において、導光体３０における外側側面５６の突出部分、つまり入射部４２に対向して配置される。ここで、図４（ｃ）に示されるように、入射部４２におけるｚ軸方向の中央の位置がＣ１と示される。また、基板３２において、Ｃ１に対向した位置、つまりＣ１と同じ高さの位置はＣ２と示される。光源３４は、基板３２上においてＣ２よりも下方に配置される。これは、導光体３０の天面５８と底面６０とを結ぶ方向の中央から、底面６０の方に光源３４が配置されることに相当する。 As described above, the light source 34 is arranged on the substrate 32 so as to face the protruding portion of the outer side surface 56 of the light guide body 30, that is, the incident portion 42. Here, as shown in FIG. 4C, the central position of the incident portion 42 in the z-axis direction is indicated as C1. Further, on the substrate 32, the position facing C1, that is, the position at the same height as C1, is indicated as C2. The light source 34 is arranged on the substrate 32 below C2. This corresponds to arranging the light source 34 toward the bottom surface 60 from the center in the direction connecting the top surface 58 and the bottom surface 60 of the light guide body 30.

図５（ａ）−（ｅ）は、導光体３０、基板３２、光源３４によって形成される光路を示す。図５（ａ）−（ｂ）は、発光面４０のｙ軸方向の中央部分を発光させるための光路を示し、図５（ｃ）−（ｅ）は、発光面４０のｙ軸方向の端部を発光させるための光路を示す。 5 (a)-(e) show an optical path formed by the light guide body 30, the substrate 32, and the light source 34. 5 (a)-(b) show an optical path for causing the central portion of the light emitting surface 40 in the y-axis direction to emit light, and FIGS. 5 (c)-(e) show the end of the light emitting surface 40 in the y-axis direction. The optical path for making the part emit light is shown.

図５（ａ）−（ｂ）では、発光面４０のｙ軸方向の中央部分を発光させるための光路が第１光路２００と示される。光源３４から出射された光は、入射部４２から導光部７０の内部に進入する。また、導光部７０の内部に進入した光には、導光部７０の内部を拡散しながら進む成分があれば、そのまま直進して内側側面５４から導光部７０の外部に出て行く成分もある。後者の成分は、発光部７２の内部に進入し、発光部７２の発光面４０から出て行くことによって、発光面４０を発光させる。つまり、第１光路２００は、光源３４から、導光部７０における外側側面５６と内側側面５４とを貫通して発光部７２に至るといえる。このように第１光路２００によって発光面４０の中央部分から出射される光の輝度は、導光体３０による減衰、つまり導光体３０による遮蔽によって弱められる。この遮蔽の効果は、導光体３０の天面５８と底面６０とを結ぶ方向の中央から、底面６０の方に光源３４が配置されることによって大きくなる。 In FIGS. 5A and 5B, the optical path 200 for causing the central portion of the light emitting surface 40 in the y-axis direction to emit light is shown as the first optical path 200. The light emitted from the light source 34 enters the inside of the light guide unit 70 from the incident unit 42. Further, if the light that has entered the inside of the light guide unit 70 has a component that advances while diffusing inside the light guide unit 70, the component that goes straight as it is and goes out from the inner side surface 54 to the outside of the light guide unit 70. There is also. The latter component enters the inside of the light emitting unit 72 and exits from the light emitting surface 40 of the light emitting unit 72 to cause the light emitting surface 40 to emit light. That is, it can be said that the first optical path 200 passes from the light source 34 through the outer side surface 56 and the inner side surface 54 of the light guide unit 70 to reach the light emitting unit 72. In this way, the brightness of the light emitted from the central portion of the light emitting surface 40 by the first optical path 200 is weakened by the attenuation by the light guide body 30, that is, the shielding by the light guide body 30. The effect of this shielding is enhanced by arranging the light source 34 toward the bottom surface 60 from the center in the direction connecting the top surface 58 and the bottom surface 60 of the light guide body 30.

図５（ｃ）−（ｄ）では、発光面４０のｙ軸方向の端部を発光させるための光路が第２光路２０２と示される。光源３４から出射された光は、入射部４２から導光部７０の内部に進入する。また、導光部７０の内部に進入した光には、導光部７０の内部を拡散しながら進む成分があれば、そのまま直進して内側側面５４から導光部７０の外部に出て行く成分もある。前者の成分は、発光部７２まで拡散して進み、発光部７２の発光面４０から出て行くことによって、発光面４０を発光させる。つまり、第２光路２０２は、光源３４から、導光体３０の外側側面５６を貫通して、導光体３０の外側側面５６と内側側面５４との間を拡散しながら発光部７２に至るといえる。 In FIGS. 5C and 5D, the optical path for causing the end of the light emitting surface 40 in the y-axis direction to emit light is shown as the second optical path 202. The light emitted from the light source 34 enters the inside of the light guide unit 70 from the incident unit 42. Further, if the light that has entered the inside of the light guide unit 70 has a component that advances while diffusing inside the light guide unit 70, the component that goes straight as it is and goes out from the inner side surface 54 to the outside of the light guide unit 70. There is also. The former component diffuses to the light emitting unit 72 and proceeds, and exits from the light emitting surface 40 of the light emitting unit 72 to cause the light emitting surface 40 to emit light. That is, when the second optical path 202 penetrates the outer side surface 56 of the light guide body 30 from the light source 34 and reaches the light emitting portion 72 while diffusing between the outer side surface 56 and the inner side surface 54 of the light guide body 30. I can say.

図５（ｃ）、（ｅ）では、発光面４０のｙ軸方向の端部を発光させるための光路が第３光路２０４と示される。光源３４から出射された光は、導光体３０の内部に進入せずに外側側面５６に沿って進む。さらに当該光は、発光部７２の内部に進入し、発光部７２の発光面４０から出て行くことによって、発光面４０を発光させる。つまり、第３光路２０４は、光源３４から、外側側面５６に沿って発光部７２に至るといえる。特に、導光部７０がＶ字型に突出するように形成されるので、第３光路２０４が形成されやすくなる。このように発光面４０のｙ軸方向の端部では、第２光路２０２の光と第３光路２０４の光とが合成されて発光される。そのため、発光面４０のｙ軸方向の端部から出射される光の輝度は、第２光路２０２の光と第３光路２０４の光との合成によって強められる。 In FIGS. 5C and 5E, the optical path for causing the end of the light emitting surface 40 in the y-axis direction to emit light is shown as the third optical path 204. The light emitted from the light source 34 travels along the outer side surface 56 without entering the inside of the light guide body 30. Further, the light enters the inside of the light emitting unit 72 and exits from the light emitting surface 40 of the light emitting unit 72 to cause the light emitting surface 40 to emit light. That is, it can be said that the third optical path 204 reaches the light emitting portion 72 along the outer side surface 56 from the light source 34. In particular, since the light guide portion 70 is formed so as to project in a V shape, the third optical path 204 is likely to be formed. In this way, at the end of the light emitting surface 40 in the y-axis direction, the light of the second optical path 202 and the light of the third optical path 204 are combined and emitted. Therefore, the brightness of the light emitted from the end portion of the light emitting surface 40 in the y-axis direction is enhanced by the combination of the light of the second optical path 202 and the light of the third optical path 204.

これらをまとめると、発光面４０のｙ軸方向の中央部分を発光させる光が弱められ、発光面４０のｙ軸方向の端部を発光させる光が強められるので、両者の輝度の高低差が小さくなる。その結果、導光体３０におけるライン状の発光面４０が、光源３４から光が出射される方向とは異なった方向を向く場合であり、かつ１つの光源３４だけを備える場合であっても、輝度ムラが抑制される。 Summarizing these, the light that emits light at the central portion of the light emitting surface 40 in the y-axis direction is weakened, and the light that emits light at the end portion of the light emitting surface 40 in the y-axis direction is strengthened, so that the difference in brightness between the two is small. Become. As a result, even when the line-shaped light emitting surface 40 of the light guide body 30 faces a direction different from the direction in which light is emitted from the light source 34, and even when only one light source 34 is provided. Brightness unevenness is suppressed.

本発明の実施例によれば、突出した導光部によって光を遮蔽しながら拡散させるとともに、導光部の外側側面に沿って光を進めさせるので、発光面の場所による輝度の高低差を低減できる。また、導光部の天面に発光部を設けるので、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制できる。また、導光体の天面と底面とを結ぶ方向の中央から、底面の方に光源が配置されるので、導光部によって光を遮蔽しやすくできる。また、導光部によって光が遮蔽しやすくなるので、導光面の中央部分から発光される光の輝度を低減できる。また、第１開放端側面と第２開放端側面とに対向して遮光部を配置させるので、光源から光が出射される方向とは異なった方向を向いた発光面の発光を強くできる。また、第１経路の光が減衰され、第２経路の光と第３経路の光とが合成されるので、ライン状の発光面の輝度ムラを抑制できる。 According to the embodiment of the present invention, the light is diffused while being shielded by the protruding light guide portion, and the light is advanced along the outer side surface of the light guide portion, so that the difference in brightness depending on the location of the light emitting surface is reduced. it can. Further, since the light emitting portion is provided on the top surface of the light guide portion, it is possible to suppress uneven brightness on the light emitting surface facing a direction different from the direction in which light is emitted from the light source. Further, since the light source is arranged toward the bottom surface from the center in the direction connecting the top surface and the bottom surface of the light guide body, the light can be easily shielded by the light guide portion. Further, since the light guide portion easily shields the light, the brightness of the light emitted from the central portion of the light guide surface can be reduced. Further, since the light-shielding portion is arranged so as to face the first open end side surface and the second open end side surface, the light emission of the light emitting surface facing a direction different from the direction in which the light is emitted from the light source can be strengthened. Further, since the light of the first path is attenuated and the light of the second path and the light of the third path are combined, the uneven brightness of the linear light emitting surface can be suppressed.

本発明の一態様の概要は、次の通りである。本発明のある態様の導光体は、互いに同一の第１方向を向いて並べられる第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぐように配置される発光部と、を備える。 The outline of one aspect of the present invention is as follows. The light guide body of an embodiment of the present invention has a first open end side surface that is arranged so as to face the same first direction, an inner side surface that projects in the opposite direction from the second open end side surface, and a second side surface that is the same as the inner side surface. A light guide portion having an outer side surface that protrudes in a direction and is arranged so as to face at least a part of the inner side surface, and a first open end side surface side and a second open end side surface side on the top surface of the light guide portion. It is provided with a light emitting unit arranged so as to straddle the above.

この態様によると、突出した導光部によって光を遮蔽しながら拡散させるとともに、導光部の外側側面に沿って光を進めさせるので、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制できる。 According to this aspect, the light is diffused while being shielded by the protruding light guide portion, and the light is advanced along the outer side surface of the light guide portion, so that the light is directed in a direction different from the direction in which the light is emitted from the light source. It is possible to suppress uneven brightness on the light emitting surface.

本発明の別の態様は、照明装置である。この装置は、互いに同一の第１方向を向いて並べられる第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぐように配置される発光部とを備える導光体と、導光体における外側側面の突出部分に対向して配置される光源と、を備える。 Another aspect of the present invention is a lighting device. This device includes an inner side surface that protrudes in the opposite direction from the first open end side surface and the second open end side surface that are arranged so as to face the same first direction, and an inner side surface that projects in the same second direction as the inner side surface. It is arranged so as to straddle the first open end side surface side and the second open end side surface side on the top surface of the light guide portion and the light guide portion having at least a part of the outer side surfaces arranged in the opposite direction. It includes a light guide body including a light emitting unit, and a light source arranged so as to face a protruding portion on an outer side surface of the light guide body.

この態様によると、突出した導光部によって光を遮蔽しながら拡散させるとともに、導光部の外側側面に沿って光を進めさせるので、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制できる。 According to this aspect, the light is diffused while being shielded by the protruding light guide portion, and the light is advanced along the outer side surface of the light guide portion, so that the light is directed in a direction different from the direction in which the light is emitted from the light source. It is possible to suppress uneven brightness on the light emitting surface.

光源は、導光体の天面と底面とを結ぶ方向の中央から、底面の方に配置されてもよい。この場合、導光体の天面と底面とを結ぶ方向の中央から、底面の方に光源が配置されるので、導光部によって光を遮蔽しやすくできる。 The light source may be arranged from the center in the direction connecting the top surface and the bottom surface of the light guide body toward the bottom surface. In this case, since the light source is arranged toward the bottom surface from the center in the direction connecting the top surface and the bottom surface of the light guide body, the light can be easily shielded by the light guide unit.

導光体における第１開放端側面と第２開放端側面とに対向して配置される遮光部をさらに備えてもよい。この場合、第１開放端側面と第２開放端側面とに対向して遮光部を配置させるので、光源から光が出射される方向とは異なった方向を向いた発光面の発光を強くできる。 A light-shielding portion arranged so as to face the first open end side surface and the second open end side surface of the light guide body may be further provided. In this case, since the light-shielding portion is arranged so as to face the first open end side surface and the second open end side surface, the light emission of the light emitting surface facing a direction different from the direction in which the light is emitted from the light source can be strengthened.

光源から、外側側面と内側側面とを貫通して発光部に至る第１経路と、光源から、外側側面を貫通して、外側側面と内側側面との間を拡散しながら発光部に至る第２経路と、光源から、外側側面に沿って発光部に至る第３経路をと含んでもよい。この場合、第１経路の光が減衰され、第２経路の光と第３経路の光とが合成されるので、ライン状の発光面の輝度ムラを抑制できる。 The first path from the light source to the light emitting portion through the outer side surface and the inner side surface, and the second path from the light source to the light emitting portion while penetrating the outer side surface and diffusing between the outer side surface and the inner side surface. It may include a path and a third path from the light source to the light emitting part along the outer side surface. In this case, since the light of the first path is attenuated and the light of the second path and the light of the third path are combined, the uneven brightness of the linear light emitting surface can be suppressed.

本発明のさらに別の態様は、電子機器である。この電子機器は、互いに同一の第１方向を向いて並べられる第１開放端側面と第２開放端側面から反対方向に突出する内側側面と、内側側面と同一の第２方向に突出しながら内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぐように配置される発光部とを備える導光体と、導光体における外側側面の突出部分に対向して配置される光源と、を備える。 Yet another aspect of the present invention is an electronic device. This electronic device has an inner side surface that projects in the opposite direction from the first open end side surface and the second open end side surface that are arranged so as to face the same first direction, and an inner side surface that projects in the same second direction as the inner side surface. It is arranged so as to straddle the side surface side of the first open end and the side surface side of the second open end on the top surface of the light guide portion and the light guide portion having an outer side surface arranged in the direction opposite to at least a part of the light guide portion. It includes a light guide body including a light emitting portion, and a light source arranged so as to face a protruding portion on an outer side surface of the light guide body.

この態様によると、突出した導光部によって光を遮蔽しながら拡散させるとともに、導光部の外側側面に沿って光を進めさせるので、光源から光が出射される方向とは異なった方向を向いた発光面における輝度ムラを抑制できる。 According to this aspect, the light is diffused while being shielded by the protruding light guide portion, and the light is advanced along the outer side surface of the light guide portion, so that the light is directed in a direction different from the direction in which the light is emitted from the light source. It is possible to suppress uneven brightness on the light emitting surface.

以上、本発明を実施例をもとに説明した。この実施例は例示であり、それらの各構成要素あるいは各処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。 The present invention has been described above based on examples. This embodiment is an example, and it will be understood by those skilled in the art that various modifications are possible for each of these components or combinations of each processing process, and that such modifications are also within the scope of the present invention. ..

本実施例において、電子機器１００は、車両に搭載される。しかしながらこれに限らず例えば、電子機器１００は、車両に搭載されなくてもよい。本変形例によれば、適用範囲を拡大できる。 In this embodiment, the electronic device 100 is mounted on the vehicle. However, the present invention is not limited to this, and for example, the electronic device 100 does not have to be mounted on the vehicle. According to this modification, the applicable range can be expanded.

本実施例において、導光部７０はＶ字型に突出している。しかしながらこれに限らず例えば、導光部７０はＶ字型以外の形状に突出してもよい。Ｖ字型以外の形状の一例は、Ｕ字型である。本変形例によれば、構成の自由度を向上できる。 In this embodiment, the light guide portion 70 projects in a V shape. However, the present invention is not limited to this, and for example, the light guide portion 70 may project into a shape other than the V shape. An example of a shape other than the V-shape is a U-shape. According to this modification, the degree of freedom of configuration can be improved.

本実施例において、導光体３０は、光拡散剤を含んで形成される。しかしながらこれに限らず例えば、導光体３０のうちの導光部７０は透明導光体で、それ以外の部分は光拡散剤を含んで形成されてもよい。本変形例によれば、光拡散剤による輝度の低下が抑制されるので、光源３４として出力の低いＬＥＤを使用できる。 In this embodiment, the light guide body 30 is formed by containing a light diffusing agent. However, the present invention is not limited to this, for example, the light guide portion 70 of the light guide body 30 may be a transparent light guide body, and the other parts may be formed by containing a light diffusing agent. According to this modification, since the decrease in brightness due to the light diffusing agent is suppressed, an LED having a low output can be used as the light source 34.

２２ 遮光部、 ３２ 基板、 ３４ 光源、 ４０ 発光面、 ４２ 入射部、 ５０ 第１開放端側面、 ５２ 第２開放端側面、 ５４ 内側側面、 ５６ 外側側面、 ５８ 天面、 ６０ 底面、 ７０ 導光部、 ７２ 発光部、 ７４ 第１取付板部、 ７６ 第２取付板部、 ７８ 第１取付孔、 ８０ 第２取付孔、 １００ 電子機器。 22 Shading part, 32 Substrate, 34 Light source, 40 Light emitting surface, 42 Incident part, 50 1st open end side surface, 52 2nd open end side surface, 54 Inner side surface, 56 Outer side surface, 58 Top surface, 60 Bottom surface, 70 Light guide , 72 Light source, 74 1st mounting plate, 76 2nd mounting plate, 78 1st mounting hole, 80 2nd mounting hole, 100 Electronic equipment.

Claims (6)

互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、前記第１開放端側面と前記第２開放端側面の上側において上側を向いて配置される天面と、前記第１開放端側面と前記第２開放端側面の下側において下側を向いて配置される底面と、前記天面と前記底面との間において、前記第１開放端側面と前記第２開放端側面から反対方向に突出する内側側面と、前記内側側面と同一の第２方向に突出しながら前記内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、
前記導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備え、
前記導光部における前記外側側面の突出した入射部から前記導光部の内部には、少なくとも前記第１方向に向かう光が入射され、
前記発光部の上側に配置される発光面が発光する導光体。 The first open end side surface and the second open end side surface, which are arranged in the same first direction and arranged laterally, and the first open end side surface and the second open end side surface are arranged facing upward. The top surface, the bottom surface arranged facing downward on the lower side of the first open end side surface and the second open end side surface, and the first open end side surface between the top surface and the bottom surface. an inner side projecting in opposite directions from said second open end side, said inner side surface and a light guide having at least a portion with an outer side surface which is arranged facing away of the inner side while projecting the same in the second direction Department and
In the top surface of the light guide portion, and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a first open end side surface and a second open end side surface,
Light directed in at least the first direction is incident on the inside of the light guide portion from the protruding incident portion on the outer side surface of the light guide portion.
A light guide body that emits light from a light emitting surface arranged above the light emitting unit. 互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、前記第１開放端側面と前記第２開放端側面の上側において上側を向いて配置される天面と、前記第１開放端側面と前記第２開放端側面の下側において下側を向いて配置される底面と、前記天面と前記底面との間において、前記第１開放端側面と前記第２開放端側面から反対方向に突出する内側側面と、前記内側側面と同一の第２方向に突出しながら前記内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、前記導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、
前記導光体における前記外側側面の突出した入射部に対向して配置される光源とを備え、
前記入射部から前記導光部の内部には、少なくとも前記第１方向に向かう光が前記光源から入射され、
前記発光部の上側に配置される発光面が発光する照明装置。 It is arranged so as to face upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged laterally so as to face the same first direction. The top surface, the bottom surface arranged facing downward on the lower side of the first open end side surface and the second open end side surface, and the first open end side surface between the top surface and the bottom surface. an inner side projecting in opposite directions from said second open end side, said inner side surface and a light guide having at least a portion with an outer side surface which is arranged facing away of the inner side while projecting the same in the second direction and parts, in top of the light guide portion, and a light guide and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a first open end side surface and a second open end side surface,
The light source includes a light source arranged so as to face the protruding incident portion on the outer side surface of the light guide body.
At least light directed in the first direction is incident from the light source into the inside of the light guide portion from the incident portion.
A lighting device in which a light emitting surface arranged above the light emitting unit emits light. 前記光源は、前記導光体の天面と底面とを結ぶ方向の中央から、前記底面の方に配置される請求項２に記載の照明装置。 The lighting device according to claim 2, wherein the light source is arranged toward the bottom surface from the center in the direction connecting the top surface and the bottom surface of the light guide body. 前記導光体における前記第１開放端側面と前記第２開放端側面とに対向して配置される遮光部をさらに備える請求項２または３に記載の照明装置。 The lighting device according to claim 2 or 3, further comprising a light-shielding portion arranged so as to face the first open end side surface and the second open end side surface of the light guide body. 互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、前記第１開放端側面と前記第２開放端側面の上側において上側を向いて配置される天面と、前記第１開放端側面と前記第２開放端側面の下側において下側を向いて配置される底面と、前記天面と前記底面との間において、前記第１開放端側面と前記第２開放端側面から反対方向に突出する内側側面と、前記内側側面と同一の第２方向に突出しながら前記内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、前記導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、
前記導光体における前記外側側面の突出した入射部に対向して配置される光源とを備え、
前記光源から、前記外側側面と前記内側側面とを貫通して前記発光部に至る第１経路と、
前記光源から、前記外側側面を貫通して、前記外側側面と前記内側側面との間を拡散しながら前記発光部に至る第２経路と、
前記光源から、前記外側側面に沿って前記発光部に至る第３経路とを含む照明装置。 It is arranged so as to face upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged laterally so as to face the same first direction. The top surface, the bottom surface arranged facing downward on the lower side of the first open end side surface and the second open end side surface, and the first open end side surface between the top surface and the bottom surface. A light guide having an inner side surface that projects in the opposite direction from the second open end side surface and an outer side surface that projects in the same second direction as the inner side surface and is arranged so as to face at least a part of the inner side surface in the opposite direction. A light guide body including a light emitting portion having a column-shaped light emitting portion extending in the lateral direction while straddling the side surface side of the first open end and the side surface side of the second open end on the top surface of the light guide portion.
The light source includes a light source arranged so as to face the protruding incident portion on the outer side surface of the light guide body.
A first path from the light source through the outer side surface and the inner side surface to the light emitting portion,
A second path from the light source, penetrating the outer side surface, diffusing between the outer side surface and the inner side surface, and reaching the light emitting portion.
An illuminating device including a third path from the light source to the light emitting portion along the outer side surface. 互いに同一の第１方向を向いて横方向に並べられる第１開放端側面と第２開放端側面と、前記第１開放端側面と前記第２開放端側面の上側において上側を向いて配置される天面と、前記第１開放端側面と前記第２開放端側面の下側において下側を向いて配置される底面と、前記天面と前記底面との間において、前記第１開放端側面と前記第２開放端側面から反対方向に突出する内側側面と、前記内側側面と同一の第２方向に突出しながら前記内側側面の少なくとも一部と反対方向を向いて並べられる外側側面とを有する導光部と、前記導光部の天面において、第１開放端側面側と第２開放端側面側とを跨ぎながら横方向に延びる柱形状の発光部とを備える導光体と、
前記導光体における前記外側側面の突出した入射部に対向して配置される光源とを備え、
前記入射部から前記導光部の内部には、少なくとも前記第１方向に向かう光が前記光源から入射され、
前記発光部の上側に配置される発光面が発光する電子機器。 It is arranged so as to face upward on the first open end side surface and the second open end side surface, and the upper side of the first open end side surface and the second open end side surface, which are arranged laterally so as to face the same first direction. The top surface, the bottom surface arranged facing downward on the lower side of the first open end side surface and the second open end side surface, and the first open end side surface between the top surface and the bottom surface. an inner side projecting in opposite directions from said second open end side, said inner side surface and a light guide having at least a portion with an outer side surface which is arranged facing away of the inner side while projecting the same in the second direction and parts, in top of the light guide portion, and a light guide and a light emitting portion of the pillar shape extending in the lateral direction while skill straddle a first open end side surface and a second open end side surface,
The light source includes a light source arranged so as to face the protruding incident portion on the outer side surface of the light guide body.
At least light directed in the first direction is incident from the light source into the inside of the light guide portion from the incident portion.
An electronic device in which a light emitting surface arranged above the light emitting unit emits light.
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