JP4659712B2 - Receiver - Google Patents

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JP4659712B2
JP4659712B2 JP2006254471A JP2006254471A JP4659712B2 JP 4659712 B2 JP4659712 B2 JP 4659712B2 JP 2006254471 A JP2006254471 A JP 2006254471A JP 2006254471 A JP2006254471 A JP 2006254471A JP 4659712 B2 JP4659712 B2 JP 4659712B2
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light
light receiving
guide tube
receiving device
remote control
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JP2008078896A (en
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昌尚 栗田
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Canon Inc
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Canon Inc
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Description

本発明は、被制御機器を遠隔制御するワイヤレスリモートコントローラ（リモコン装置）からのリモコン信号光を受光する受光装置に関するものである。 The present invention relates to a light receiving device for receiving the remote control signal light from the wireless remote controller for remotely controlling the controlled apparatus (the remote control device).

被制御機器（以下単に機器ともいう）を遠隔制御するためのリモコン装置としては、有線形式のリモートコマンダや、無線形式のワイヤレスリモートコントローラ等がある。 As remote control devices for remotely controlling controlled devices (hereinafter also simply referred to as devices) , there are a wired remote commander, a wireless wireless remote controller, and the like.

受光装置としては図１５に示すように、受光部１と導光管２とから構成されるのが一般的である。導光管２の開口面２ａは、遠隔制御される機器の筐体３の前面３ａに面を合わせて配置される。受光部１は、機器の向かいに存在する操作者４からワイヤレスリモートコントローラを用いて発信されるリモコン信号光５を電気信号へと変換するフォトダイオードとフィルタ、アンプなどで構成される。導光管２は、様々な角度から発信されるリモコン信号光５を受光部１に導く。一般的に、角柱形状や円柱形状の導光管がよく用いられる。   As shown in FIG. 15, the light receiving device is generally composed of a light receiving unit 1 and a light guide tube 2. The opening surface 2a of the light guide tube 2 is disposed so that the surface thereof is aligned with the front surface 3a of the casing 3 of the device to be remotely controlled. The light receiving unit 1 is configured by a photodiode, a filter, an amplifier, and the like that convert remote control signal light 5 transmitted from an operator 4 existing opposite to the device using a wireless remote controller into an electrical signal. The light guide tube 2 guides the remote control signal light 5 transmitted from various angles to the light receiving unit 1. In general, a prismatic or cylindrical light guide tube is often used.

ここで、インバータ照明が設置されている環境下でのワイヤレスリモートコントローラの誤動作が問題となっている。これは、インバータ照明の点灯周波数（数十〜数百ｋＨｚ）が、リモコン信号光の搬送波周波数（４０ｋＨｚ付近の赤外線）に近いため、インバータ照明の光が妨害光となるからである。   Here, a malfunction of the wireless remote controller in an environment where inverter lighting is installed is a problem. This is because the lighting frequency (several tens to several hundreds kHz) of the inverter illumination is close to the carrier frequency of the remote control signal light (infrared rays around 40 kHz), and thus the light of the inverter illumination becomes interference light.

そこで、このような誤動作を防止するため、妨害光を受光しにくくした形状の導光管が提案されている（例えば、特許文献１参照）。一般的にインバータ照明からの光は被制御機器の上側から照射される。特許文献１では、操作者側から受光部側に向けて導光管に広がりを持たせる傾斜面を設けることによって、上側からの光に対しては受光部へと導光せず、感度を下げるような構造を提案している。 Therefore, in order to prevent such a malfunction, a light guide tube having a shape that makes it difficult to receive interference light has been proposed (see, for example, Patent Document 1). Light from general inverter illumination is irradiated from the upper side of the controlled device. In Patent Document 1, by providing an inclined surface that expands the light guide tube from the operator side toward the light receiving unit side, light from the upper side is not guided to the light receiving unit, and sensitivity is lowered. A structure like this is proposed.

インバータ照明の点灯周波数（数十〜数百ｋＨｚ）が、リモコン信号光の搬送波周波数（４０ｋＨｚ付近の赤外線）に近いために生じる誤動作を防ぐため、受光装置の上側からの入射光に対する受光感度を低下させることが求められている。   In order to prevent malfunctions caused by the lighting frequency of the inverter lighting (several tens to several hundreds of kHz) being close to the carrier frequency of the remote control signal light (infrared rays around 40 kHz), the light receiving sensitivity to incident light from above the light receiving device is reduced. It is demanded to make it.

一方で、近年急速に普及しつつある薄型テレビが壁掛け状態やチルト状態で設置されることを考慮し、受光装置の下側からの入射光に対する受光感度を向上させることが望まれている。   On the other hand, it is desired to improve the light receiving sensitivity with respect to the incident light from the lower side of the light receiving device in consideration of the fact that thin televisions that are rapidly spreading in recent years are installed in a wall-mounted state or a tilted state.

しかし、従来の一般的な導光管の形状では、上側からの入射光に対する受光感度を低下させると同時に、下側からの入射光に対する受光感度を向上させることができなかった。また、特許文献１に記載の導光管の形状では、上側からの入射光に対する受光感度を低下させることはできるが、下側からの入射光に対する受光感度を向上させることができなかった。   However, in the conventional general light guide tube shape, the light receiving sensitivity with respect to the incident light from the upper side cannot be lowered and the light receiving sensitivity with respect to the incident light from the lower side cannot be improved. Further, the shape of the light guide tube described in Patent Document 1 can reduce the light receiving sensitivity with respect to the incident light from the upper side, but cannot improve the light receiving sensitivity with respect to the incident light from the lower side.

本発明の目的は、上側からの入射光に対する受光感度を低下させると同時に、下側からの入射光に対する受光感度を向上させることができる受光装置を提供することにある。   An object of the present invention is to provide a light receiving device capable of reducing the light receiving sensitivity for incident light from the upper side and simultaneously improving the light receiving sensitivity for incident light from the lower side.

上記目的を達成するために、本発明による受光装置は、リモコン装置を用いて遠隔制御することが可能な被制御機器に設けられ、リモコン信号光を受光する受光部と、開口面側から入射されたリモコン信号光を前記受光部へ導く導光管とを備える受光装置において、前記導光管は、底面を有する中空角型形状又は底面を有する中空円弧形状であり、前記導光管の底面の開口面側の一部に、開口面側に向かって下方に傾斜する傾斜面を有し、前記傾斜面に入射された光を乱反射するための凹凸部又は前記傾斜面に入射された光を吸収するための黒塗り部を、前記傾斜面に設けることを特徴とする。 In order to achieve the above object, a light receiving device according to the present invention is provided in a controlled device that can be remotely controlled using a remote control device, and receives a light receiving portion that receives remote control signal light and an opening surface side. In the light receiving device including the light guide tube that guides the remote control signal light to the light receiving unit, the light guide tube has a hollow square shape having a bottom surface or a hollow arc shape having a bottom surface, and is formed on the bottom surface of the light guide tube . the portion of the opening surface side, have a sloping surface inclined downward toward the open face side, absorbs incident light to the uneven portion or the inclined surface for diffuse reflection of light incident on the inclined surface A black coating portion is provided on the inclined surface .

本発明によれば、上側からの入射光に対する受光感度を低下させるとともに、下側からの入射光に対する受光感度を向上させることができる。特に、上側から入射される照明光等は傾斜面で乱反射又は吸収されるため、受光部へと到達することがほとんどない。According to the present invention, it is possible to reduce the light receiving sensitivity with respect to the incident light from the upper side and to improve the light receiving sensitivity with respect to the incident light from the lower side. In particular, illumination light or the like incident from above is diffusely reflected or absorbed by the inclined surface, and therefore hardly reaches the light receiving unit.

以下、本発明の実施の形態を図面を参照しながら詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の第１の実施の形態に係る受光装置を拡大して示す薄型テレビ（被制御機器）の斜視図である。 Figure 1 is a perspective view of a flat-screen TV (controlled device) showing an enlarged light-receiving device according to a first embodiment of the present invention.

図１において、薄型テレビ（被制御機器）１１の筐体３には、受光部１と導光管１２からなる受光装置が搭載される。導光管１２は、操作者４からのリモコン信号光５を受光部１へ導く。 In Figure 1, the housing 3 of the flat-screen TV (controlled device) 11, a light receiving device is mounted comprising a light receiving portion 1 and the light guide tube 12. The light guide tube 12 guides the remote control signal light 5 from the operator 4 to the light receiving unit 1.

本実施の形態の筒状の導光管１２は、図２以下で詳述するように、底面に、開口面側に向かって下方に傾斜する傾斜面１２ａを有する。   The cylindrical light guide tube 12 of the present embodiment has an inclined surface 12a that is inclined downward toward the opening surface on the bottom surface, as will be described in detail below with reference to FIG.

図２は、図１における受光装置と光の入射角との関係を示す図である。   FIG. 2 is a diagram showing the relationship between the light receiving device in FIG. 1 and the incident angle of light.

上述したように、本実施の形態の筒状の導光管１２は、底面に、開口面側に向かって下方に傾斜する傾斜面１２ａを有する。   As described above, the cylindrical light guide tube 12 of the present embodiment has the inclined surface 12a that is inclined downward toward the opening surface side on the bottom surface.

受光部１の上側（傾斜面１２ａに対して垂直方向）からのインバータ照明２１の光２２は、導光管１２の傾斜面１２ａによって受光部１とは異なる方向に反射され、受光されにくくなる。また、下側（傾斜面１２ａに対して水平方向）からのリモコン信号光５は導光管１４の傾斜面１２ａによって入射径が広くなるため、受光されやすくなる。   The light 22 of the inverter illumination 21 from the upper side of the light receiving unit 1 (perpendicular to the inclined surface 12a) is reflected in a direction different from the light receiving unit 1 by the inclined surface 12a of the light guide tube 12, and is not easily received. Further, the remote control signal light 5 from the lower side (horizontal direction with respect to the inclined surface 12 a) is easily received because the incident diameter is increased by the inclined surface 12 a of the light guide tube 14.

尚、図２については、後にさらに詳述する。   2 will be described in detail later.

図３は、図１における第１の実施の形態の受光装置の斜視図、図４は、本発明の第２の実施の形態に係る受光装置の斜視図である。   3 is a perspective view of the light receiving device according to the first embodiment in FIG. 1, and FIG. 4 is a perspective view of the light receiving device according to the second embodiment of the present invention.

図３において、導光管１２−１（図４の導光管１２−２と区別した）は、中空角型である。   In FIG. 3, the light guide tube 12-1 (distinguished from the light guide tube 12-2 in FIG. 4) is a hollow square type.

図４において、導光管１２−２は、中空円弧型である。   In FIG. 4, the light guide tube 12-2 has a hollow arc shape.

中空角型、中空円弧型のほかにも中空筒状であれば、種々の形状が考えられる。傾斜面１２ａは、平面の他、曲面を含むものでも良い。導光管１２はポリカーボネート、アクリル、ガラスなどの光を導光する物質で形成される。   In addition to the hollow square shape and the hollow arc shape, various shapes can be considered as long as the shape is a hollow cylindrical shape. The inclined surface 12a may include a curved surface in addition to a flat surface. The light guide tube 12 is formed of a material that guides light, such as polycarbonate, acrylic, and glass.

図５は、一般的なリビングルームに薄型テレビが設置された場合の受光装置とインバータ照明の距離関係を示す図である。   FIG. 5 is a diagram illustrating a distance relationship between the light receiving device and the inverter illumination when a flat-screen television is installed in a general living room.

図５において、一般的なリビングルーム（８〜１２畳）の壁から壁までの距離は４〜５ｍである。そしてインバータ照明２１は部屋の中央に、薄型テレビ１１は壁に近接した位置に設置されることを考慮して、受光装置−インバータ照明間の幅を２．０ｍとする。   In FIG. 5, the distance from the wall of a general living room (8-12 tatami mats) is 4-5 m. The width between the light receiving device and the inverter illumination is set to 2.0 m in consideration that the inverter illumination 21 is installed at the center of the room and the thin television 11 is installed at a position close to the wall.

次に、一般的なリビングルームの天井の高さが２．５ｍ〜２．８ｍであることを考慮して、インバータ照明２１の高さを２．５ｍとする。さらに、一般的なテレビ台を使用した場合の受光装置の高さを０．５ｍとすると、受光装置−インバータ照明間の高さは２．０ｍとなる。これらの距離関係から、インバータ照明光２２が受光装置の導光管に入射する角度は４５°となる。   Next, considering that the ceiling height of a general living room is 2.5 m to 2.8 m, the height of the inverter illumination 21 is set to 2.5 m. Furthermore, if the height of the light receiving device when a general television stand is used is 0.5 m, the height between the light receiving device and the inverter illumination is 2.0 m. From these distance relationships, the angle at which the inverter illumination light 22 enters the light guide tube of the light receiving device is 45 °.

図６は、図１における第１の実施の形態の受光装置の寸法関係を示す図であり、（ａ）は側面図、（ｂ）は正面図である。   6A and 6B are diagrams showing the dimensional relationship of the light receiving device according to the first embodiment in FIG. 1, in which FIG. 6A is a side view and FIG. 6B is a front view.

図６において、受光部１の受光面の高さ３１を例えば５ｍｍとする。導光管１２は、例えば高さ３２が５ｍｍ、幅３３が５ｍｍの正方形の面を持つ角柱と、高さ３４が１０ｍｍ、幅３３が５ｍｍの長方形の面を、４５°の斜面１２ａで接続した構造とする。   In FIG. 6, the height 31 of the light receiving surface of the light receiving unit 1 is, for example, 5 mm. In the light guide tube 12, for example, a rectangular column having a square surface with a height 32 of 5 mm and a width 33 of 5 mm and a rectangular surface with a height 34 of 10 mm and a width 33 of 5 mm are connected by a 45 ° slope 12a. Structure.

上述した図２に戻り、図６の導光管を用いる場合の光の入射角を説明する。   Returning to FIG. 2 described above, the incident angle of light when the light guide tube of FIG. 6 is used will be described.

図２において、インバータ照明光２２は入射角度４１をもって入射するが、これは４５°となる。また、下側からのリモコン信号光５の入射角度４２も４５°であるとする。   In FIG. 2, the inverter illumination light 22 is incident at an incident angle 41, which is 45 °. Further, it is assumed that the incident angle 42 of the remote control signal light 5 from the lower side is also 45 °.

このような場合、導光管１２の傾斜角度（傾斜面１２ａと開口面１２ｂとのなす角度）４３が４５°であることにより、上側からのインバータ照明光２２は、入射方向と平行な方向に反射することになり、受光部１へは導光されない。   In such a case, the inclination angle (angle formed by the inclined surface 12a and the opening surface 12b) 43 of the light guide tube 12 is 45 °, so that the inverter illumination light 22 from above is in a direction parallel to the incident direction. The light is reflected and is not guided to the light receiving unit 1.

図７は、薄型テレビを壁掛け設置した状態を示す図、図８は、薄型テレビをチルト状態で設置した状態を示す図である。   FIG. 7 is a diagram showing a state in which a flat-screen television is installed on a wall, and FIG. 8 is a diagram showing a state in which the flat-screen television is installed in a tilted state.

図７に示すように、薄型テレビ１１を壁５１に掛けて設置した場合や、図８に示すように、チルト状態で設置した場合リモコン信号光５に対して入射径が大幅に拡大し、受光しやすくなる。このように、導光管１２の傾斜面１２ａの傾斜角度４３が４５°であるときに、インバータ照明光２２の妨害に強く、下側からの受光感度も向上させることができる。   As shown in FIG. 7, when the thin television 11 is installed on the wall 51, or when installed in a tilted state as shown in FIG. It becomes easy to do. Thus, when the inclination angle 43 of the inclined surface 12a of the light guide tube 12 is 45 °, it is strong against interference with the inverter illumination light 22, and the light receiving sensitivity from the lower side can be improved.

但し、導光管１２の傾斜角度４３は必ずしも４５°に限定されるものではなく、幾らか増減しても同様の効果が得られる。   However, the inclination angle 43 of the light guide tube 12 is not necessarily limited to 45 °, and the same effect can be obtained even if it is somewhat increased or decreased.

図９は、本発明の第３の実施の形態に係る受光装置の構成図である。   FIG. 9 is a configuration diagram of a light receiving device according to the third embodiment of the present invention.

図９において、導光管１２の傾斜面１２ａには凹凸部６１が設けられている。上側からのインバータ照明光２２は凹凸部６１にて乱反射し、受光部１へと導光されることが無い。凹凸部６１はシボ加工のように不規則な表面処理を施してもよい。   In FIG. 9, an uneven portion 61 is provided on the inclined surface 12 a of the light guide tube 12. The inverter illumination light 22 from the upper side is irregularly reflected by the uneven portion 61 and is not guided to the light receiving portion 1. The uneven portion 61 may be subjected to an irregular surface treatment such as embossing.

図１０は、本発明の第４の実施の形態に係る受光装置の構成図である。   FIG. 10 is a configuration diagram of a light receiving device according to the fourth embodiment of the present invention.

図１０において、導光管１２の傾斜面１２ａには黒塗り部７１が設けられている。上側からのインバータ照明光２２は黒塗り部７１にて吸収され、受光部１へと導光されることが無い。黒塗り部７１は金属酸化物系塗料やカーボンブラック系塗料など、光吸収率の高いものを用いる。   In FIG. 10, a black coating portion 71 is provided on the inclined surface 12 a of the light guide tube 12. The inverter illumination light 22 from above is absorbed by the black coating portion 71 and is not guided to the light receiving portion 1. The black coating portion 71 uses a material having a high light absorption rate such as a metal oxide paint or a carbon black paint.

上側からの信号（インバータ照明光２２）の入射について、図１１に従来の一般的な導光管２を用いた場合、図１２に本発明の傾斜面付き導光管１２を用いた場合を示す。一般的な導光管２では、上側からの光は導光管内での反射を経て受光部１まで到達するが、本発明の傾斜面付き導光管１２では、上側からの光は受光部側へ反射しないため、最終的に受光部１へと到達しない。   Regarding the incidence of the signal (inverter illumination light 22) from the upper side, FIG. 11 shows the case where the conventional general light guide tube 2 is used, and FIG. 12 shows the case where the light guide tube 12 with the inclined surface of the present invention is used. . In the general light guide tube 2, the light from the upper side reaches the light receiving unit 1 through reflection in the light guide tube, but in the light guide tube 12 with the inclined surface according to the present invention, the light from the upper side is on the light receiving unit side. Therefore, the light does not reach the light receiving unit 1 in the end.

壁掛け、チルト時の下側からの信号の入射について、図１３に従来の一般的な導光管２を用いた場合、図１４に本発明の傾斜面付き導光管１２を用いた場合を示す。従来の一般的な導光管２では、下側からの信号光に対する入射径８１が制限されるため、受光部１まで到達する信号が少ない。一方、本発明の傾斜面付き導光管１２では、下側からの信号光に対する入射径８１が大きくなるため、受光部１まで到達する信号が多くなり、感度が向上する。   With respect to the incidence of signals from the lower side during wall hanging and tilting, FIG. 13 shows a case where the conventional general light guide tube 2 is used, and FIG. 14 shows a case where the light guide tube 12 with the inclined surface of the present invention is used. . In the conventional general light guide tube 2, since the incident diameter 81 with respect to the signal light from the lower side is limited, there are few signals reaching the light receiving unit 1. On the other hand, in the light guide tube 12 with the inclined surface according to the present invention, since the incident diameter 81 with respect to the signal light from the lower side is increased, the number of signals reaching the light receiving unit 1 is increased, and the sensitivity is improved.

本発明の第１の実施の形態に係る受光装置を拡大して示す薄型テレビ（被制御機器）の斜視図である。It is a perspective view of a flat-screen TV (controlled device) showing an enlarged light-receiving device according to a first embodiment of the present invention. 図１における受光装置と光の入射角との関係を示す図である。It is a figure which shows the relationship between the light-receiving device in FIG. 1, and the incident angle of light. 図１における第１の実施の形態の受光装置の斜視図である。It is a perspective view of the light-receiving device of 1st Embodiment in FIG. 本発明の第２の実施の形態に係る受光装置の斜視図である。It is a perspective view of the light-receiving device which concerns on the 2nd Embodiment of this invention. 一般的なリビングルームに薄型テレビが設置された場合の受光装置とインバータ照明の距離関係を示す図である。It is a figure which shows the distance relationship between a light-receiving device and inverter illumination when a flat-screen television is installed in a general living room. 図１における第１の実施の形態の受光装置の寸法関係を示す図である。It is a figure which shows the dimensional relationship of the light receiving device of 1st Embodiment in FIG. 薄型テレビを壁掛け設置した状態を示す図である。It is a figure which shows the state which mounted the thin television on the wall. 薄型テレビをチルト状態で設置した状態を示す図である。It is a figure which shows the state which installed the thin television in the tilt state. 本発明の第３の実施の形態に係る受光装置の構成図である。It is a block diagram of the light-receiving device which concerns on the 3rd Embodiment of this invention. 本発明の第４の実施の形態に係る受光装置の構成図である。It is a block diagram of the light-receiving device which concerns on the 4th Embodiment of this invention. 従来例に係る受光装置において、上側からのインバータ照明光を入射する様子を示す図である。It is a figure which shows a mode that the inverter illumination light from upper side injects in the light-receiving device which concerns on a prior art example. 本発明の受光装置において、上側からのインバータ照明光を入射する様子を示す図である。It is a figure which shows a mode that the inverter illumination light from upper side injects in the light-receiving device of this invention. 従来例に係る受光装置において、下側からのリモコン信号光を入射する様子を示す図である。It is a figure which shows a mode that the remote control signal light from the lower side injects in the light-receiving device which concerns on a prior art example. 本発明の受光装置において、下側からのリモコン信号光を入射する様子を示す図である。It is a figure which shows a mode that the remote control signal light from the lower side injects in the light-receiving device of this invention. 従来例に係る受光装置の構成図である。It is a block diagram of the light-receiving device which concerns on a prior art example.

符号の説明Explanation of symbols

１ 受光部
５ リモコン信号光
１１ 薄型テレビ
１２ 導光管
１２ａ 傾斜面
２１ インバータ照明
２２ インバータ照明光
６１ 凹凸部
７１ 黒塗り部 DESCRIPTION OF SYMBOLS 1 Light-receiving part 5 Remote control signal light 11 Thin-screen TV 12 Light guide tube 12a Inclined surface 21 Inverter illumination 22 Inverter illumination light 61 Uneven part 71 Black coating part

Claims (3)

リモコン装置を用いて遠隔制御することが可能な被制御機器に設けられ、リモコン信号光を受光する受光部と、開口面側から入射されたリモコン信号光を前記受光部へ導く導光管とを備える受光装置において、
前記導光管は、底面を有する中空角型形状又は底面を有する中空円弧形状であり、
前記導光管の底面の開口面側の一部に、開口面側に向かって下方に傾斜する傾斜面を有し、
前記傾斜面に入射された光を乱反射するための凹凸部又は前記傾斜面に入射された光を吸収するための黒塗り部を、前記傾斜面に設けることを特徴とする受光装置。 A light receiving unit that is provided in a controlled device that can be remotely controlled using a remote control device, and that receives a remote control signal light, and a light guide tube that guides the remote control signal light incident from the opening surface side to the light receiving unit. In the light receiving device provided,
The light guide tube is a hollow square shape having a bottom surface or a hollow arc shape having a bottom surface,
The part of the opening surface side of the bottom surface of the light-guiding tube, have a sloping surface inclined downward toward the open face side,
A light receiving device , comprising: an uneven portion for irregularly reflecting light incident on the inclined surface; or a blackened portion for absorbing light incident on the inclined surface . 前記傾斜面は、開口面に対して略４５度傾斜していることを特徴とする請求項１記載の受光装置。   The light receiving device according to claim 1, wherein the inclined surface is inclined by approximately 45 degrees with respect to the opening surface. 前記導光管が導光するリモコン信号光として赤外線を用いることを特徴とする請求項１又は２記載の受光装置。 Receiving apparatus according to claim 1 or 2, wherein the light pipe is characterized by using an infrared as a remote control signal light guiding.
JP2006254471A 2006-09-20 2006-09-20 Receiver Expired - Fee Related JP4659712B2 (en)

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