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JP2018170625A5
JP2018170625A5 JP2017066458A JP2017066458A JP2018170625A5 JP 2018170625 A5 JP2018170625 A5 JP 2018170625A5 JP 2017066458 A JP2017066458 A JP 2017066458A JP 2017066458 A JP2017066458 A JP 2017066458A JP 2018170625 A5 JP2018170625 A5 JP 2018170625A5
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Prior art keywords
light
receiving
emitting element
display
projecting
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JP2017066458A
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JP6904750B2 (en
JP2018170625A (en
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Claims (16)

検出光を検出領域に向けて投光する発光素子と、
前記検出領域からの検出光を受光する受光素子と、
前記発光素子に光結合される投光用光伝搬部材が接続される投光用接続部と、
前記受光素子に光結合される受光用光伝搬部材が接続される受光用接続部と、
前記受光素子で生成された受光信号としきい値とを比較して比較結果を示す検出信号を生成する信号生成部と、
前記受光接続部に光結合され且つ可視光を発する第１の表示用発光素子と、
前記受光用接続部と前記受光素子との間に位置し、かつ、前記第１の表示用発光素子の発した可視光が前記受光用接続部に入光するにあたり通過し、前記発光素子の発した検出光が前記受光用接続部を介して前記受光素子に入光するにあたり通過する透光部材と、を有する光電センサ。 A light emitting element that projects detection light toward a detection area,
A light receiving element for receiving the detection light from the detection region,
A light projecting connection portion to which a light projecting light propagation member optically coupled to the light emitting element is connected,
A light-receiving connection portion to which a light-receiving light propagating member optically coupled to the light-receiving element is connected,
A signal generator that compares the received light signal generated by the light receiving element with a threshold value and generates a detection signal indicating a comparison result;
A first display light-emitting element that is optically coupled to the light-receiving connection portion and emits visible light;
Visible light, which is located between the light-receiving connection portion and the light-receiving element and is emitted from the first display light-emitting element, passes through when entering the light-receiving connection portion and emits light from the light-emitting element. And a translucent member through which the detected light passes when entering the light receiving element through the light receiving connection portion. 前記透光部材は、前記受光素子および前記第１の表示用発光素子を覆うように設けられている請求項１に記載の光電センサ。   The photoelectric sensor according to claim 1, wherein the translucent member is provided so as to cover the light receiving element and the first display light emitting element. 前記透光部材は、前記受光素子および前記第１の表示用発光素子を保護するように設けられている請求項１に記載の光電センサ。   The photoelectric sensor according to claim 1, wherein the translucent member is provided so as to protect the light receiving element and the first display light emitting element. 前記第１の表示用発光素子が発する可視光が前記受光素子に入光する、その光の量を低減する低減手段を更に有する、請求項１に記載の光電センサ。   The photoelectric sensor according to claim 1, further comprising: a reduction unit that reduces the amount of visible light emitted by the first display light emitting element that enters the light receiving element. 前記低減手段が、前記第１の表示用発光素子と前記受光素子との間に配置されたフィルタである、請求項４に記載の光電センサ。   The photoelectric sensor according to claim 4, wherein the reducing unit is a filter arranged between the first display light emitting element and the light receiving element. 前記受光素子は受光用実装基板に実装され、
該受光素子の上に前記第１の表示用発光素子が配置され、
該第１の表示用発光素子と前記受光素子との間に前記フィルタが介装されている、請求項５に記載の光電センサ。 The light receiving element is mounted on a light receiving mounting board,
The first display light-emitting element is disposed on the light-receiving element,
The photoelectric sensor according to claim 5, wherein the filter is interposed between the first display light emitting element and the light receiving element. 前記フィルタが、光波長選択性の光吸収能力又は光反射能力を有する材料からなる、請求項５又は６に記載の光電センサ。   7. The photoelectric sensor according to claim 5, wherein the filter is made of a material having a light absorption ability or a light reflection ability of light wavelength selectivity. 前記低減手段が、前記第１の表示用発光素子の発光タイミングと、前記受光素子の受光タイミングとを異ならせることからなる、請求項４に記載の光電センサ。   The photoelectric sensor according to claim 4, wherein the reducing unit is configured to make the light emission timing of the first display light emitting element different from the light reception timing of the light receiving element. 前記低減手段が、前記第１の表示用発光素子と前記受光素子との間に配置された遮光材料である、請求項４に記載の光電センサ。   The photoelectric sensor according to claim 4, wherein the reducing unit is a light-shielding material arranged between the first display light-emitting element and the light-receiving element. 前記受光素子が、フォトダイオードベアチップとこれを包囲するモールド樹脂とで構成され、
該モールド樹脂に前記フィルタが設けられている、請求項５〜７のいずれか一項に記載の光電センサ。 The light receiving element is composed of a photodiode bare chip and a mold resin surrounding the photodiode bare chip,
The photoelectric sensor according to claim 5, wherein the mold resin is provided with the filter. 前記受光素子と前記受光用光伝搬部材との間の距離が、前記第１の表示用発光素子と前記受光用光伝搬部材との間の距離よりも小さい、請求項１〜１０のいずれか一項に記載の光電センサ。   11. The distance between the light receiving element and the light receiving light propagating member is smaller than the distance between the first display light emitting element and the light receiving light propagating member. The photoelectric sensor according to the item. 前記受光用光伝搬部材から前記受光部に前記透光部材を通じて前記検出光が入光し、
前記第１の表示用発光素子が発した前記表示光が前記透光部材を通じて前記受光用光伝搬部材に入ると共に前記フィルタを通じて前記受光素子に受光される、請求項５〜７のいずれか一項に記載の光電センサ。 The detection light enters from the light receiving light propagating member to the light receiving portion through the light transmitting member,
8. The display light emitted from the first display light emitting element enters the light receiving light propagating member through the light transmitting member and is received by the light receiving element through the filter. The photoelectric sensor described in 1. 前記投光部が、検出光を発する投光素子と、前記投光用光伝搬部材に光結合され且つ可視光を発する第２の表示用発光素子とを有し、
該第２の表示用発光素子が発した表示光が前記投光用光伝搬部材を通って該投光用光伝搬部材の先端を光らせる、請求項１〜１２のいずれか一項に記載の光電センサ。 The light projecting section includes a light projecting element that emits detection light, and a second display light emitting element that is optically coupled to the light projecting light propagation member and emits visible light.
Display light display light-emitting device of the second uttered is through said projecting optical propagation member illuminate the tip of-projecting Hikari Mitsumochi propagation member, a photoelectric according to any one of claims 1 to 12 Sensor. 前記第２の表示用発光素子が、前記受光部から遠い側に配置されている、請求項１３に記載の光電センサ。 The photoelectric sensor according to claim 13 , wherein the second display light-emitting element is arranged on a side far from the light-receiving unit. 素子ホルダを更に有し、
該素子ホルダが、
前記投光用光伝搬部材が挿入される投光用挿入穴と、
前記受光用光伝搬部材が挿入される受光用挿入穴と、
前記投光部を収容する投光部収容部と、
前記受光部を収容する受光部収容部と、を備え、
前記透光部材と前記第１の表示用発光素子とは，前記受光部収容部に収容されている、請求項１〜１４のいずれか一項に記載の光電センサ。
Further having an element holder,
The element holder is
A light projecting insertion hole into which the light projecting light propagation member is inserted;
A light receiving insertion hole into which the light receiving light propagating member is inserted,
A light projecting section housing section for housing the light projecting section;
A light receiving portion housing portion that houses the light receiving portion,
Wherein the translucent member and the first display light-emitting elements are accommodated in the receiving portion accommodating portion, the photoelectric sensor according to any one of claims 1-14.
検出光を検出領域に向けて投光する発光素子と、
前記検出領域からの検出光を受光する受光素子と、
前記発光素子に光結合される投光用光伝搬部材が接続される投光用接続部と、
前記受光素子に光結合される受光用光伝搬部材が接続される受光用接続部と、
前記受光素子で生成された受光信号としきい値とを比較して比較結果を示す検出信号を生成する信号生成部と、
前記投光接続部に光結合され且つ可視光を発する第２の表示用発光素子と、
前記投光用接続部と前記投光素子との間に位置し、かつ、前記第２の表示用発光素子の発した可視光が前記投光用接続部に入光するにあたり通過し、前記発光素子の発した検出光が前記受光用接続部を介して前記受光素子に入光するにあたり通過する透光部材と、を有する光電センサ。
A light emitting element that projects detection light toward a detection area,
A light receiving element for receiving the detection light from the detection region,
A light projecting connection portion to which a light projecting light propagation member optically coupled to the light emitting element is connected,
A light-receiving connection portion to which a light-receiving light propagating member optically coupled to the light-receiving element is connected,
A signal generator that compares the received light signal generated by the light receiving element with a threshold value to generate a detection signal indicating a comparison result;
A second display light emitting element which is optically coupled to the light projecting connection portion and emits visible light;
Visible light, which is located between the light projecting connection portion and the light projecting element, and which is emitted from the second display light emitting element, passes through when entering the light projecting connection portion, and the light is emitted. A photoelectric sensor, comprising: a light transmitting member through which detection light emitted from the element passes when entering the light receiving element via the light receiving connection portion.
JP2017066458A 2017-03-29 2017-03-29 Photoelectric sensor Active JP6904750B2 (en)

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JP2018170625A5 true JP2018170625A5 (en) 2020-05-21
JP6904750B2 JP6904750B2 (en) 2021-07-21

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CN114137269A (en) * 2021-11-24 2022-03-04 广西电网有限责任公司 Bluetooth photoelectric head and method for reading and writing multi-protocol electric energy meter
CN115440525B (en) * 2022-09-20 2024-07-19 创视知联科技(苏州)有限公司 Photoelectric sensor and mounting process thereof

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JPS57107527A (en) * 1980-12-25 1982-07-05 Matsushita Electric Works Ltd Operation display unit for optical fiber type photoelectric switch
JPH10173207A (en) * 1996-10-11 1998-06-26 Sharp Corp Optical transceiver module
JP3774335B2 (en) * 1999-06-23 2006-05-10 シャープ株式会社 Optical transceiver module and single-core bidirectional optical communication system using the same
JP2002148117A (en) * 2000-11-14 2002-05-22 Yamatake Corp Optical sensor
JP2003084173A (en) * 2001-09-10 2003-03-19 Citizen Electronics Co Ltd Bidirectional optical transmission device
JP2008091173A (en) * 2006-09-29 2008-04-17 Sunx Ltd Photoelectric sensor
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