CN2156480Y - Reflection type photoelectric sensor - Google Patents
Reflection type photoelectric sensor Download PDFInfo
- Publication number
- CN2156480Y CN2156480Y CN 93210716 CN93210716U CN2156480Y CN 2156480 Y CN2156480 Y CN 2156480Y CN 93210716 CN93210716 CN 93210716 CN 93210716 U CN93210716 U CN 93210716U CN 2156480 Y CN2156480 Y CN 2156480Y
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- CN
- China
- Prior art keywords
- light
- photoelectric sensor
- photo detector
- utility
- emitting component
- 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 - Fee Related
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model relates to a reflection type photoelectric sensor. The utility model is characterized in that two or more than two acceptance elements are arranged around a luminous element; the acceptance elements are connected in parallel. The utility model changes the single-point transmission and single-point reception into the single-point transmission and multipoint reception. The probability of the sensor capturing the reflected signal is increased. The signal is superposed, and the signal intensity is improved. The utility model achieves the requirements of high sensing accuracy and reliable operation no matter the alignment error is large or small.
Description
The utility model relates to a kind of reflective photoelectric sensor.
The design feature of reflective photoelectric sensor is not only to be provided with light-emitting component in the sensor, and the county also is provided with photo detector, wherein photo detector receives and is launched by light-emitting component, and through the light signal of reflecting body reflection, then light signal is converted to electric signal output, known reflective photoelectric sensor is made up of a light-emitting component and a photo detector, because only one of photo detector, the light signal that is received also just a little less than, if light-emitting component is big with the alignment error of reflecting body in using, photo detector tends to catch the light signal less than reflection so, and at this moment, sensor is with ineffective.
The purpose of this utility model provides the reflective photoelectric sensor of a kind of sensing accuracy height, reliable operation.
Around light-emitting component photo detector more than two or two is set, and the photo detector parallel connection can be achieved the above object.
Further illustrate content of the present utility model below in conjunction with drawings and Examples.
Fig. 1: the utility model front elevation;
Fig. 2: the utility model side view;
Fig. 3: the photo detector wiring diagram of light-emitting component.
Reflective photoelectric sensor is generally hand-held, be made up of body 1, light-emitting component 2 and photo detector 3, light-emitting component 2 and photo detector 3 are installed in respectively in the light-conductive hole on the body 1, and wherein light-emitting component 2 is one, photo detector 3 is more than two or two, and is provided with around light-emitting component 2.If photo detector quantity is two, the best division that is provided with is the both sides that photo detector 2 are arranged on light-emitting component 1, if photo detector quantity is more than two, division is set is to be the center with light-emitting component 1 to the best so, along a certain circumference uniform distribution.In addition, photo detector 3 should form and be connected in parallel.In order to make photo detector 3 can more easily catch light signal, when photo detector 3 is installed, also should make the central axis formation angle of the central axis of photo detector 3 with light-emitting component 2.The light signal of light-emitting component 2 emissions can be a visible light, also can be invisible light, in order to improve anti-interference, generally is to adopt infrarede emitting diode to make light-emitting component 2, and infrared phototriode is made photo detector 3.
The essence of the reflective photoelectric sensor of said structure is the single-point emission, multiple spot receives, such one probability that can make sensor catch reflected light signal increases, two can make the signal stack, improve the intensity of signal, therefore, and though this reflective photoelectric sensor at alignment error big or hour, all can reach the requirement of sensing accuracy height, reliable operation.
Claims (2)
1, a kind of reflective photoelectric sensor of being made up of body, light-emitting component and photo detector is characterized in that: be provided with two or two above photo detectors (3) around light-emitting component (2), and photo detector (3) is connected in parallel.
2, reflective photoelectric sensor according to claim 1 is characterized in that: photo detector (3) is the center with light-emitting component (2), around the circumference uniform distribution of light-emitting component (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93210716 CN2156480Y (en) | 1993-04-21 | 1993-04-21 | Reflection type photoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93210716 CN2156480Y (en) | 1993-04-21 | 1993-04-21 | Reflection type photoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2156480Y true CN2156480Y (en) | 1994-02-16 |
Family
ID=33792541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93210716 Expired - Fee Related CN2156480Y (en) | 1993-04-21 | 1993-04-21 | Reflection type photoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2156480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311566C (en) * | 1999-11-30 | 2007-04-18 | 欧姆龙株式会社 | Optical device and apparatus comprising said optical device |
| CN1809848B (en) * | 2003-06-23 | 2010-06-09 | 迪布尔特有限公司 | Automated banking machine with improved fraud resistance |
-
1993
- 1993-04-21 CN CN 93210716 patent/CN2156480Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311566C (en) * | 1999-11-30 | 2007-04-18 | 欧姆龙株式会社 | Optical device and apparatus comprising said optical device |
| CN1809848B (en) * | 2003-06-23 | 2010-06-09 | 迪布尔特有限公司 | Automated banking machine with improved fraud resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |