JPS628608Y2 - - Google Patents
Info
- Publication number
- JPS628608Y2 JPS628608Y2 JP1981071109U JP7110981U JPS628608Y2 JP S628608 Y2 JPS628608 Y2 JP S628608Y2 JP 1981071109 U JP1981071109 U JP 1981071109U JP 7110981 U JP7110981 U JP 7110981U JP S628608 Y2 JPS628608 Y2 JP S628608Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- remote control
- receiving element
- light receiving
- shield plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000005286 illumination Methods 0.000 description 7
- 230000007257 malfunction Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Selective Calling Equipment (AREA)
- Optical Communication System (AREA)
Description
【考案の詳細な説明】
本考案は、光信号を用いた遠隔操作装置の特に
受光部の構成に関し、誤動作のおそれのないもの
を提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to provide a remote control device using optical signals, particularly regarding the configuration of the light receiving section, which is free from the risk of malfunction.
テレビジヨン受像機等の遠隔操作装置として、
発光ダイオードから発する光を超音波周波数（30
〜50KHz）で変調した光信号を用いるものが多く
採用されている。ところが、最近、省エネルギー
対策の一還として、家庭用の螢光灯照明器具を高
周波点灯させることにより少ない電力で明るい照
明をさせるものが用いられてきている。しかる
に、そのような照明器具から発せられる照明光は
遠隔操作用の光信号に類似した周波数で変調され
ているものであるため、これが遠隔操作用の受光
装置に入射されていると受信回路では常に信号を
受信した状態になつてしまい、正規の遠隔操作信
号を受信して制御をすることができなくなるとい
う誤動作を生じている。 As a remote control device for television receivers, etc.
The light emitted from the light emitting diode is heated to an ultrasonic frequency (30
Many systems use optical signals modulated at ~50KHz). Recently, however, as part of efforts to save energy, household fluorescent lighting equipment has been used that uses high frequency lighting to provide brighter lighting with less power. However, since the illumination light emitted from such lighting equipment is modulated at a frequency similar to the optical signal for remote control, if this light is incident on the light receiving device for remote control, the receiving circuit will always This results in a malfunction in which the device is in a state where it is receiving a signal, and is no longer able to receive and control the regular remote control signal.
そこで、本考案はかかる不都合を解消した装置
を提供することを目的とするもので、以下、その
一実施例を示す図面を参照して詳細に説明する。 SUMMARY OF THE INVENTION The present invention aims to provide an apparatus that eliminates such inconveniences, and an embodiment thereof will be described in detail below with reference to the drawings.
図は超音波周波数で変調された遠隔制御用の光
信号を受光する受光装置の部分を示すもので、図
において、１は受信回路の配線基板、２はその上
に固定されたホルダー、３はその前面に取り付け
られた光信号受光用のフオトPINダイオード等の
受光素子である。受信回路のヘツドエンドの部分
は２つのシールドケース４，５によりシールドさ
れており、さらに、受光素子３の周辺はシールド
板６によりシールドされていて、不要な電磁波雑
音等の混入が防止されている。シールド板６には
前面に受光窓７が形成され、前方からの遠隔制御
用の光信号が受光素子３に導かれる。８はシール
ド板６の周囲に設けられた保護用兼用のフイルタ
である。 The figure shows the part of a light receiving device that receives an optical signal for remote control modulated at an ultrasonic frequency. In the figure, 1 is the wiring board of the receiving circuit, 2 is a holder fixed on it, and 3 is a A light receiving element such as a photo PIN diode for receiving optical signals is attached to the front surface of the light receiving element. The head end portion of the receiving circuit is shielded by two shield cases 4 and 5, and the area around the light receiving element 3 is further shielded by a shield plate 6 to prevent unnecessary electromagnetic noise from entering. A light receiving window 7 is formed in the front of the shield plate 6, and an optical signal for remote control from the front is guided to the light receiving element 3. Reference numeral 8 denotes a protective filter provided around the shield plate 6.
かかる受光装置において、受光可能な範囲は前
方上下方向には軸線からほぼ30度づつ、前方左右
方向には軸線からほぼ45度づつになされているの
が一般的である。しかしながら、上述した如く高
周波点灯された照明灯からの光による誤動作を防
止するため、本考案においては、シールド板６の
受光窓７の前上方を覆うようにＬ字状の遮光板９
を設けた点に特徴がある。このように構成するこ
とにより、受光可能な範囲を、前方左右方向の角
度θは従来と同様ほぼ45度にし、前方下方向の角
度βもほぼ30度にするとともに、前方上方向の角
度αは従来よりも大幅に削減してほぼ17度程度に
する。 In such a light receiving device, the light receiving range is generally approximately 30 degrees from the axis in the front up and down direction, and approximately 45 degrees from the axis in the front left and right directions. However, in order to prevent malfunctions due to light from high-frequency illumination lights as described above, in the present invention, an L-shaped light shielding plate 9 is provided so as to cover the upper front side of the light receiving window 7 of the shield plate 6.
It is distinctive in that it has been established. With this configuration, the angle θ in the front left and right direction is approximately 45 degrees, the angle β in the front downward direction is approximately 30 degrees, and the angle α in the forward upward direction is approximately 30 degrees. This is significantly reduced compared to the previous model, to about 17 degrees.
このようにすると、高周波点灯された照明灯が
受光素子３の前方3mの位置で上方1mの所に設置
されているとしても、その照明灯を受光素子３か
ら見た角度はほぼ18.4度となり、その照明灯から
の光を遮光板９によつて有効に遮ぎることができ
てその光による誤動作を有効に防止することがで
きるものである。さらに、照明灯の設置位置は、
一般家庭においては上述の例よりもさらに受光素
子に近くかつさらに上方に設けられているのが通
常であるから、その場合にはさらに有効である。 In this way, even if a high-frequency illuminated illumination lamp is installed 3 m in front of the light receiving element 3 and 1 m above the light receiving element 3, the angle of the illumination lamp when viewed from the light receiving element 3 will be approximately 18.4 degrees. The light from the illumination lamp can be effectively blocked by the light shielding plate 9, and malfunctions caused by the light can be effectively prevented. Furthermore, the installation position of the lighting is
In ordinary homes, it is usually provided closer to and further above the light-receiving element than the above-mentioned example, so it is even more effective in that case.
もちろん、この遮光板９はシールド板６と一体
に形成する以外に、別体に形成して組み合わせる
ようにしてもよい。 Of course, the light shielding plate 9 may be formed separately from the shield plate 6 instead of being formed integrally with the shield plate 6 and combined.
さらに、このように遮光板９を設けて前方上方
からの受光角度を制限するようにしても、通常の
遠隔操作のために手元送信器から光信号が発せら
れる位置はそれほど高くないのが一般的であるの
で、そのような通常の遠隔操作には何ら差支えは
ない。 Furthermore, even if the light shielding plate 9 is provided to limit the angle of light reception from the upper front, the position from which the optical signal is emitted from the handheld transmitter for normal remote control is generally not very high. Therefore, there is no problem with such normal remote control.
以上詳述したように、本考案によれば、省エネ
ルギー対策として用いられてきている高周波点灯
された照明灯からの光を、受光窓の前上方を覆う
ように設けたＬ字状の遮光板によつて有効に遮つ
て受光素子に入射させないようにすることがで
き、それらの照明灯による遠隔操作の誤動作を防
止して正確な遠隔操作を行うことのできる有用な
装置を得ることができるものである。 As described in detail above, according to the present invention, light from a high-frequency illumination lamp, which has been used as an energy-saving measure, is transmitted to an L-shaped light-shielding plate provided to cover the front upper part of the light-receiving window. Therefore, it is possible to effectively block the light from entering the light-receiving element, and to obtain a useful device that can prevent malfunctions of remote control using these illumination lights and perform accurate remote control. be.
第１図は本考案の一実施例における遠隔操作装
置の断側面図、第２図はそのＸ−Ｘ断下面図、第
３図は用いるシールド板の斜視図である。
１……配線基板、２……ホルダー、３……受光
素子、４，５……シールドケース、６……シール
ド板、７……受光窓、８……フイルタ、９……遮
光板。
FIG. 1 is a sectional side view of a remote control device according to an embodiment of the present invention, FIG. 2 is a sectional bottom view taken along the line X-X, and FIG. 3 is a perspective view of a shield plate used. DESCRIPTION OF SYMBOLS 1... Wiring board, 2... Holder, 3... Light receiving element, 4, 5... Shield case, 6... Shield plate, 7... Light receiving window, 8... Filter, 9... Light blocking plate.
Claims (1)
を受光する受光素子を設け、前面に受光窓を形成
しシールド板上記受光素子の周囲に設けるととも
に、上記受光窓の前上方を覆うＬ字状の遮光片を
設けてなる遠隔操作装置。 A light-receiving element that receives an optical signal for remote control modulated at an ultrasonic frequency is provided, a light-receiving window is formed on the front surface, a shield plate is provided around the light-receiving element, and the L-shape covers the front upper part of the light-receiving window. A remote control device equipped with a light shielding piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981071109U JPS628608Y2 (en) | 1981-05-15 | 1981-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981071109U JPS628608Y2 (en) | 1981-05-15 | 1981-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57182955U JPS57182955U (en) | 1982-11-19 |
| JPS628608Y2 true JPS628608Y2 (en) | 1987-02-27 |
Family
ID=29866907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981071109U Expired JPS628608Y2 (en) | 1981-05-15 | 1981-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS628608Y2 (en) |
-
1981
- 1981-05-15 JP JP1981071109U patent/JPS628608Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57182955U (en) | 1982-11-19 |
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