JPH0360006U - - Google Patents
Info
- Publication number
- JPH0360006U JPH0360006U JP11948189U JP11948189U JPH0360006U JP H0360006 U JPH0360006 U JP H0360006U JP 11948189 U JP11948189 U JP 11948189U JP 11948189 U JP11948189 U JP 11948189U JP H0360006 U JPH0360006 U JP H0360006U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emitting
- light receiving
- selection circuit
- emitting element
- 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
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Description
第１図ないし第３図は本考案の第１実施例を示
し、第１図は回路図、第２図は初期設定のための
手順を示すフローチヤート、第３図はマイクロコ
ンピユータの動作を示すフローチヤート、第４図
は本考案の第２実施例を示す第１図相当図である
。
図面中、１，３１……投光素子、２，３２……
受光素子、５……マイクロコンピユータ、７……
投光用選択回路、１０……受光用選択回路、１９
……比較回路（判断手段）である。
Figures 1 to 3 show a first embodiment of the present invention, with Figure 1 being a circuit diagram, Figure 2 being a flowchart showing the initial setting procedure, and Figure 3 showing the operation of the microcomputer. The flowchart, FIG. 4, is a diagram corresponding to FIG. 1 showing a second embodiment of the present invention. In the drawing, 1, 31... light emitting element, 2, 32...
Light receiving element, 5...Microcomputer, 7...
Selection circuit for light emission, 10... Selection circuit for light reception, 19
...It is a comparison circuit (judgment means).
Claims (1)
れる複数の投光素子と、これらの投光素子と対を
なすように設けられて前記検出エリアからの光を
受ける複数の受光素子と、この受光素子からの受
光信号が与えられる判断手段とを備えたものにお
いて、複数の入力ラインを備えそのうちの１つを
選択的に出力ラインに出力する選択回路を設け、
ある１つの投光素子が発光したときに、その投光
素子と対をなす受光素子とその投光素子からの光
による影響を受けない１個以上の受光素子とを並
列接続して１つのグループを構成し、全受光素子
を同様にして複数のグループに分けると共にそれ
らの各グループを前記選択回路の各入力ラインに
接続し、この選択回路の出力ラインからの信号を
前記判断手段に与えるようにしたことを特徴とす
るエリアセンサ。 A plurality of light emitting elements that are sequentially turned on to irradiate light toward a detection area, a plurality of light receiving elements that are provided in pairs with these light emitting elements and receive light from the detection area, and and a determining means to which a light reception signal from a light receiving element is applied, and a selection circuit having a plurality of input lines and selectively outputting one of them to an output line,
When a certain light emitting element emits light, a light receiving element paired with that light emitting element and one or more light receiving elements that are not affected by the light from the light emitting element are connected in parallel to form one group. , all of the light receiving elements are divided into a plurality of groups in the same manner, and each of the groups is connected to each input line of the selection circuit, and a signal from the output line of the selection circuit is given to the judgment means. This is an area sensor that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119481U JPH0643683Y2 (en) | 1989-10-12 | 1989-10-12 | area sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119481U JPH0643683Y2 (en) | 1989-10-12 | 1989-10-12 | area sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0360006U true JPH0360006U (en) | 1991-06-13 |
| JPH0643683Y2 JPH0643683Y2 (en) | 1994-11-14 |
Family
ID=31667605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989119481U Expired - Lifetime JPH0643683Y2 (en) | 1989-10-12 | 1989-10-12 | area sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643683Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144014A (en) * | 1985-12-18 | 1987-06-27 | Mitsutoyo Mfg Corp | Photoelectric position detector |
| JPS62128355U (en) * | 1986-02-05 | 1987-08-14 |
-
1989
- 1989-10-12 JP JP1989119481U patent/JPH0643683Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144014A (en) * | 1985-12-18 | 1987-06-27 | Mitsutoyo Mfg Corp | Photoelectric position detector |
| JPS62128355U (en) * | 1986-02-05 | 1987-08-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643683Y2 (en) | 1994-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |