JPS647434U - - Google Patents

Info

Publication number
JPS647434U
JPS647434U JP10227687U JP10227687U JPS647434U JP S647434 U JPS647434 U JP S647434U JP 10227687 U JP10227687 U JP 10227687U JP 10227687 U JP10227687 U JP 10227687U JP S647434 U JPS647434 U JP S647434U
Authority
JP
Japan
Prior art keywords
light
optical axis
light receiving
light emitting
timekeeping
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.)
Granted
Application number
JP10227687U
Other languages
Japanese (ja)
Other versions
JP2533473Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987102276U priority Critical patent/JP2533473Y2/en
Publication of JPS647434U publication Critical patent/JPS647434U/ja
Application granted granted Critical
Publication of JP2533473Y2 publication Critical patent/JP2533473Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案の一実施例に係るラインセ
ンサの回路構成を説明するブロツク図、第２図は
、同ラインセンサの動作を説明するタイムチヤー
トであり、第２図ａは、ＬＥＤのオンタイミング
、第２図ｂは、ホトトランジスタのアクテイブタ
イミング、第２図ｃは、コンパレータの入力、第
２図ｄは、コンパレータの出力、第２図ｅは、Ｌ
ＥＤドライバへの入力をそれぞれ示す図、第３図
は、従来の多光軸光電スイツチを説明する概略構
成図である。 Ｌ１〜Ｌ５：ＬＥＤ、Ｐ１〜Ｐ５：ホトトラン
ジスタ、３：リングカウンタ、５：マルチプレク
サ、７：コンパレータ、９：ＣＰＵ、１２：確認
用ＬＥＤ。 FIG. 1 is a block diagram explaining the circuit configuration of a line sensor according to an embodiment of the invention, FIG. 2 is a time chart explaining the operation of the line sensor, and FIG. On timing, FIG. 2b is the active timing of the phototransistor, FIG. 2c is the input of the comparator, FIG. 2d is the output of the comparator, and FIG. 2e is the L
FIG. 3, which shows inputs to the ED driver, is a schematic configuration diagram illustrating a conventional multi-optical axis photoelectric switch. L1 to L5 : LED, P1 to P5 : Phototransistor, 3: Ring counter, 5: Multiplexer, 7: Comparator, 9: CPU, 12: Confirmation LED.

Claims (1)

【実用新案登録請求の範囲】 周期Ｔ１で順次投光を行なう複数の投光素子と
、これら投光素子のそれぞれに対応して設けられ
る受光素子と、これら受光素子の受光レベルを基
準値と比較し、投光素子とこれと対応する受光素
子を結ぶ各光軸の遮光状態を順次検出する遮光状
態検出手段とを備えてなる多光軸光電スイツチに
おいて、 前記遮光状態検出手段で光軸の遮光が検出され
た時にリセツトされると共に計時を開始し、前記
周期Ｔ１以上の設定時間Ｔ２を有する計時手段と
、この計時手段の計時中又は停止中に作動する報
知手段とを備えたことを特徴とする多光軸光電ス
イツチ。[Claims for Utility Model Registration] A plurality of light emitting elements that sequentially emit light with a cycle T1 , a light receiving element provided corresponding to each of these light emitting elements, and a light receiving level of these light receiving elements as a reference value. In comparison, in a multi-optical axis photoelectric switch comprising a light shielding state detection means for sequentially detecting the light shielding state of each optical axis connecting a light emitting element and a corresponding light receiving element, A timekeeping means that is reset and starts timekeeping when light shielding is detected and has a set time T2 that is longer than the period T1 , and a notification means that operates while the timekeeping means is measuring time or when it is stopped. A multi-optical axis photoelectric switch featuring:
JP1987102276U 1987-07-02 1987-07-02 Multi-optical axis photoelectric sensor Expired - Lifetime JP2533473Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987102276U JP2533473Y2 (en) 1987-07-02 1987-07-02 Multi-optical axis photoelectric sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987102276U JP2533473Y2 (en) 1987-07-02 1987-07-02 Multi-optical axis photoelectric sensor

Publications (2)

Publication Number Publication Date
JPS647434U true JPS647434U (en) 1989-01-17
JP2533473Y2 JP2533473Y2 (en) 1997-04-23

Family

ID=31332039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987102276U Expired - Lifetime JP2533473Y2 (en) 1987-07-02 1987-07-02 Multi-optical axis photoelectric sensor

Country Status (1)

Country Link
JP (1) JP2533473Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0378602A (en) * 1989-08-23 1991-04-03 Alpine Electron Inc Controlling device equipped with photosensor
JP2010194937A (en) * 2009-02-26 2010-09-09 Ricoh Elemex Corp Liquid ejection failure detecting device, and inkjet recording device
JP2011018348A (en) * 1999-03-29 2011-01-27 Toshiba Corp Control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459245U (en) * 1977-09-30 1979-04-24
JPS5857135U (en) * 1981-10-14 1983-04-18 オムロン株式会社 electronic switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459245U (en) * 1977-09-30 1979-04-24
JPS5857135U (en) * 1981-10-14 1983-04-18 オムロン株式会社 electronic switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0378602A (en) * 1989-08-23 1991-04-03 Alpine Electron Inc Controlling device equipped with photosensor
JP2011018348A (en) * 1999-03-29 2011-01-27 Toshiba Corp Control system
JP2011040061A (en) * 1999-03-29 2011-02-24 Toshiba Corp Control system
JP2010194937A (en) * 2009-02-26 2010-09-09 Ricoh Elemex Corp Liquid ejection failure detecting device, and inkjet recording device

Also Published As

Publication number Publication date
JP2533473Y2 (en) 1997-04-23

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