JPS648613U - - Google Patents
Info
- Publication number
- JPS648613U JPS648613U JP10284887U JP10284887U JPS648613U JP S648613 U JPS648613 U JP S648613U JP 10284887 U JP10284887 U JP 10284887U JP 10284887 U JP10284887 U JP 10284887U JP S648613 U JPS648613 U JP S648613U
- Authority
- JP
- Japan
- Prior art keywords
- light
- output
- range
- light receiving
- reflected light
- 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 description 8
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
Description
第１図は本考案の光電センサの光学系を示す図
、第２図は本実施例の光電センサの電気的構成を
示すブロツク図、第３図はその動作特性を示すグ
ラフ、第４図は従来の光電センサの一例を示すブ
ロツク図、第５図はその動作特性を示すグラフで
ある。
６……位置検出素子、１１……集光レンズ、１
２……受光素子、１３，１４……Ｉ／Ｖ変換器、
１５，１６，２２……増幅器、１７……加算回路
、１８……減算回路、１９……割算回路、２０…
…信号切換回路、２１……Ｌレベル検知回路、２
３……比較器、２４……距離判別回路、２６……
信号処理部。
Fig. 1 is a diagram showing the optical system of the photoelectric sensor of the present invention, Fig. 2 is a block diagram showing the electrical configuration of the photoelectric sensor of the present embodiment, Fig. 3 is a graph showing its operating characteristics, and Fig. 4 is a diagram showing the electrical configuration of the photoelectric sensor of the present invention. FIG. 5 is a block diagram showing an example of a conventional photoelectric sensor, and a graph showing its operating characteristics. 6...Position detection element, 11...Condensing lens, 1
2... Light receiving element, 13, 14... I/V converter,
15, 16, 22...Amplifier, 17...Addition circuit, 18...Subtraction circuit, 19...Divide circuit, 20...
...Signal switching circuit, 21...L level detection circuit, 2
3... Comparator, 24... Distance discrimination circuit, 26...
Signal processing section.
Claims (1)
投光部と、前記投光部の光軸より一定角度を持つ
て交叉するように配置され物体からの反射光を受
光する一次元センサを含む受光部を有し、受光位
置に基づいて物体までの距離を検出する光電セン
サであつて、 測距範囲に位置する物体からの反射光を受光し
て前記一次元センサに与える凸レンズと、 前記測距範囲より近傍に位置する物体からの反
射光を集光し受光信号を得る近距離検出手段と、 前記受光部の一次元センサ出力により連続した
出力を与えると共に、前記近距離検出手段からの
検知信号によつてその出力を出力範囲の一端に固
定し、前記一次元受光部に反射光が与えられず前
記近距離検出手段から検知信号が得られないとき
にはその出力を出力範囲の他端に固定することに
より物体の位置に対して単調に変化する出力を得
る信号処理部と、を具備することを特徴とする光
電センサ。[Claims for Utility Model Registration] A light projector that directs and irradiates a parallel light beam toward a detection area, and a light projector that is arranged to intersect at a certain angle from the optical axis of the light projector and emits reflected light from an object. A photoelectric sensor that has a light receiving section including a one-dimensional sensor that receives light and detects a distance to an object based on a light receiving position, the one-dimensional sensor detects reflected light from an object located within a distance measurement range. a convex lens that provides continuous output from the one-dimensional sensor output of the light receiving section; a short distance detection means that collects reflected light from an object located nearer than the distance measurement range and obtains a received light signal; The output is fixed at one end of the output range by the detection signal from the short-range detection means, and when no reflected light is given to the one-dimensional light receiving section and no detection signal is obtained from the short-range detection means, the output is stopped. A photoelectric sensor comprising: a signal processing section that obtains an output that monotonically changes with respect to the position of an object by being fixed at the other end of the output range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102848U JPH0750656Y2 (en) | 1987-07-03 | 1987-07-03 | Photoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102848U JPH0750656Y2 (en) | 1987-07-03 | 1987-07-03 | Photoelectric sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648613U true JPS648613U (en) | 1989-01-18 |
| JPH0750656Y2 JPH0750656Y2 (en) | 1995-11-15 |
Family
ID=31333135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987102848U Expired - Lifetime JPH0750656Y2 (en) | 1987-07-03 | 1987-07-03 | Photoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750656Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179828A (en) * | 1982-04-15 | 1983-10-21 | Canon Inc | Safety device of active range finder |
| JPS6013210A (en) * | 1983-07-01 | 1985-01-23 | Hamamatsu Photonics Kk | Distance measuring device |
-
1987
- 1987-07-03 JP JP1987102848U patent/JPH0750656Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179828A (en) * | 1982-04-15 | 1983-10-21 | Canon Inc | Safety device of active range finder |
| JPS6013210A (en) * | 1983-07-01 | 1985-01-23 | Hamamatsu Photonics Kk | Distance measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750656Y2 (en) | 1995-11-15 |
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