CN105897237B - A kind of retroreflecting optoelectronic switch - Google Patents
A kind of retroreflecting optoelectronic switch Download PDFInfo
- Publication number
- CN105897237B CN105897237B CN201610368739.7A CN201610368739A CN105897237B CN 105897237 B CN105897237 B CN 105897237B CN 201610368739 A CN201610368739 A CN 201610368739A CN 105897237 B CN105897237 B CN 105897237B
- Authority
- CN
- China
- Prior art keywords
- light
- photophore
- receiving device
- hole
- interfaces
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
- H03K2217/94102—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector characterised by the type of activation
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The invention discloses a kind of retroreflecting optoelectronic switch, including switch case, PCB components, the photophore for sending out detection light and the light-receiving device for receiving baffle reflection light are fixed in switch case.The signal output apparatus that PCB components are formed with the illuminating circuit being connected with photophore and are connected with light-receiving device.Photophore sends out detection light and is incuded by light-receiving device after reflection returns, and exports electric signal by signal output apparatus.The retroreflecting formula optoelectronic switch, photophore and light-receiving device are integrated in one, and can effectively improve detecting distance and accuracy of detection, improve anti-interference ability, have many advantages, such as detecting distance far, strong antijamming capability, fast response time.
Description
Technical field
The present invention relates to a kind of photoelectric sensor, specifically a kind of retroreflecting optoelectronic switch.
Background technology
Photoelectric sensor belongs to non-contact type detection sensor, and detecting distance is wider, for the presence or absence of detection object,
Distance and property etc., therefore it is widely used in industrial automation arrangement field.
Photoelectric sensor is using detected material blocking or reflect to light beam, by synchronization loop gating circuit, to examine
Survey object whether there is or not.Object is not limited to metal, and the object of all energy reflection lights can be detected.Photoelectric sensor will input electricity
Stream be converted on transmitter optical signal injection, receiver further according to the light received power or whether there is or not to target object into
Row detection.
Existing photoelectric sensor is made of transmitter, receiver and detection circuit three parts.Transmitter alignment target is sent out
The light beam of irradiating light beam, transmitting is typically derived from semiconductor light source, light emitting diode, laser diode and infrared-emitting diode,
Light beam emits incessantly, or changes pulse width, and light beam radiation intensity pulsed is in the transmission by repeatedly choosing
It selects, is not run indirectly towards target.Receiver is made of photodiode or phototriode, photocell, in receiver
Front, equipped with optical element such as lens and aperture etc., face is detection circuit behind, it can filter out useful signal and application should
Signal.In addition, also having triangle reflecting plate and optical fiber in the structural detail of photoelectric sensor, triangle reflecting plate is sound construction
Emitter, so that light beam is accurately returned from reflecting plate, it can change the angle of departure with the range of optical axis 0 to 25, make
Light beam is almost from an emission lines, is returned after reflection, or from this root reflected ray.
Above-mentioned photoelectric sensor can accurately be detected the presence or absence of object, distance and property etc., but structure compared with
For complexity, and lack the setting of protection circuit, reliability is not high, and service life is big compared with short and volume, use when occupy compared with
More spaces, it is inconvenient for use.
Invention content
The technical problem to be solved by the present invention is to present situations for the above-mentioned prior art, and provide a kind of retroreflecting photoelectricity
Switch, photophore and light-receiving device are integrated in one, and photophore emits beam and is reflected into light-receiving device, and light-receiving device detects that light is believed
Current signal is selected after number and is exported.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of retroreflecting optoelectronic switch, including open
Shell is closed, PCB components, the photophore for sending out detection light are fixed in switch case and for receiving baffle reflection light
The light-receiving device of line.PCB components are formed with the illuminating circuit being connected with photophore and the signal being connected with light-receiving device output electricity
Road.Photophore sends out detection light and is incuded by light-receiving device after reflection returns, and exports electric signal by signal output apparatus.
To optimize above-mentioned technical proposal, the invention also includes following improved technical solutions.
Above-mentioned photophore is light emitting diode.Illuminating circuit includes Power Entry Module, rectifying and voltage-stabilizing module and shines
The optical modulator module that device is connected.
Above-mentioned light-receiving device is phototriode.Signal output apparatus includes the signal amplification mould being connected with light-receiving device
Block, modulation circuit module, clocked logic module and signal output module.
Above-mentioned Power Entry Module includes power input interface.Rectifying and voltage-stabilizing module includes power supply chip.Power supply chip
Equipped with Vout interfaces, Vin interfaces and GND interfaces.Vout interfaces and GND interfaces are connected with the both ends of the first capacitance respectively, and
And GND interfaces are connected with ground terminal.Vin interfaces and GND interfaces are connected with the both ends of the second capacitance respectively, and in the second capacitance
Both ends be parallel with first resistor, the output branch that the first diode and out splice going splice are constituted.
Above-mentioned PCB components include processing chip.Optical modulator module includes light modulation triode.The collection of light modulation triode
Electrode is connected with out splice going splice, the GP0 interfaces of connection processing chip after base series photophore.
The collector of above-mentioned light-receiving device connects power input interface with base stage by second resistance, is connected with and connects in base terminal
The polar capacitor on ground.The emitter of light-receiving device passes through variable resistance and third capacitance and amplifying triode connection processing chip
GP2 interfaces.
Above-mentioned switch case is square plastic casing.The inside of switch case be formed with installation PCB components, photophore and
The cavity of light-receiving device.The PCB fixed plates being fixedly connected with PCB components are equipped on the top of cavity.Photophore and light-receiving device are fixed
In the side of PCB components.The side wall of switch case is formed with the fenestra of transmitted light, and optical filtering is installed at fenestra.
Light source fixing part is equipped in above-mentioned cavity, light source fixing part is mounted between optical filtering and PCB components, in light source
There are two can pass through the first through hole and the second through-hole of light to the inside system of fixing piece.Photophore is fixed on the interior of first through hole
End.Light-receiving device is fixed on the inner end of the second through-hole.
The outer end of above-mentioned first through hole is installed with first collector lens, and light beam is formed in the middle part of first through hole
Hole.The outer end of second through-hole is installed with the second light transparent lens, and the second beam unthreaded hole is formed in the middle part of the second through-hole.Light source is solid
The both sides for determining part are formed with the ladder bayonet being fixedly connected with switch case inner wall.
The adjusting knob for being equipped with light guide plate at the top of above-mentioned switch case and being connected with PCB components.Under light guide plate
Side is equipped with power supply indicator and working station indicator, and power supply indicator is connected by power branch with power interface.Work
Status indicator lamp is connected with the emitter of indicator light triode, and the GP5 of the base stage connection processing chip of indicator light triode connects
Mouthful, collector connects power supply.
Compared with prior art, retroreflecting formula optoelectronic switch of the invention, photophore and light-receiving device are integrated in one,
Photophore sends out detection light and is incuded by light-receiving device after reflection returns, and exports electric signal by signal output apparatus, can be with
Detecting distance and accuracy of detection are effectively improved, anti-interference ability is improved, there is remote detecting distance, strong antijamming capability, response speed
Spend the advantages that fast.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the overlooking structure diagram of Fig. 1.
Fig. 3 is the cross-sectional view of Fig. 1.
Fig. 4 is the cross-sectional view of another embodiment.
Fig. 5 is the electrical block diagram of power unit in PCB components.
Fig. 6 is the electrical block diagram of PCB components.
Specific implementation mode
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Fig. 6 show the structural schematic diagram of the present invention.
Reference numeral therein is：Switch case 1, optical filtering 12, PCB components 2, PCB fixed plates 21, shines at cavity 11
Device 3, light-receiving device 4, light source fixing part 5, first through hole 51, the second through-hole 52, first collector lens 53, the first beam unthreaded hole 54,
Two light transparent lens 55, the second beam unthreaded hole 56, ladder bayonet 57, light guide plate 6, adjusting knob 7, power supply chip 81, the first capacitance 82,
Second capacitance 83, first resistor 84, the first diode 85, out splice going splice 86, processing chip 87, light modulation triode 88, polarity
Capacitance 89, variable resistance 91, third capacitance 92, amplifying triode 93, power supply indicator 94, working station indicator 95, instruction
Lamp triode 96.
As shown in Figures 1 to 3, a kind of retroreflecting optoelectronic switch of the invention, including switch case 1, in switch case 1
It is fixed with PCB components 2, the photophore 3 for sending out detection light and the light-receiving device 4 that light is returned for receiving reflection.
PCB components 2 are formed with the illuminating circuit being connected with photophore 3 and the signal being connected with light-receiving device 4 output electricity
Road.Photophore 3 sends out detection light and is incuded by light-receiving device 4 after reflection returns, and exports electric signal by signal output apparatus.
In the present invention, photophore 3 is to be connected to be connected to light emitting diode with optical modulator module, it is preferred to use wavelength 600nm
To the infrared light-emitting diode of 900nm.Use light source wave band for the infrared light-emitting diode of 880nm in the present embodiment.Photophore 3
The light sent out is returned through external baffle reflection, then is detected by the induction of light-receiving device 4.
Light-receiving device 4 is the phototriode being connected with signal amplification module.If there is barrier is in retroreflecting formula light
Stop that light, light-receiving device 4 can detect barrier between electric switch and reflecting plate.
Illuminating circuit includes Power Entry Module, rectifying and voltage-stabilizing module, the optical modulator module being connected with photophore 3, can
To carry out rectifying and voltage-stabilizing to power supply, the luminous and modulation light of photophore 3 is realized.
Signal output apparatus includes the signal amplification module, modulation circuit module, clocked logic mould being connected with light-receiving device 4
Block and signal output module.Light-receiving device 4 receives light, and converts optical signals into electric signal by signal output apparatus and export.
Power Entry Module includes power input interface.Rectifying and voltage-stabilizing module includes power supply chip 81.Power supply chip 81 is set
There are Vout interfaces, Vin interfaces and GND interfaces.Vout interfaces and GND interfaces are connected with the both ends of the first capacitance 82 respectively, and
And GND interfaces are connected with ground terminal.Vin interfaces and GND interfaces are connected with the both ends of the second capacitance 83 respectively, and in the second electricity
The both ends for holding 83 are parallel with the output branch that first resistor 84, the first diode 85 and out splice going splice 86 are constituted.
PCB components 2 include processing chip 87.Optical modulator module includes light modulation triode 88.Light modulation triode 88
Collector is connected with out splice going splice 86, the GP0 interfaces of connection processing chip 87 after base series photophore 3.
The collector of light-receiving device 4 connects power input interface with base stage by second resistance, and ground connection is connected in base terminal
Polar capacitor 89.The emitter of light-receiving device 4 passes through variable resistance 91 and third capacitance 92 and 93 connection processing of amplifying triode
The GP2 interfaces of chip 87.
Switch case 1 is square plastic casing, is preferably dimensioned to be 20mm*30mm.It is formed with installation in the inside of switch case 1
The cavity 11 of PCB components 2, photophore 3 and light-receiving device 4.
The PCB fixed plates 21 being fixedly connected with PCB components 2 are equipped on the top of cavity 11.PCB fixed plates 21 and switch housing
The inner wall of body 1 is connected, and the PCB components 2 that are fixed.
Aperture, power cord and data line is formed in switch case 1 by the aperture to be connected with PCB components 2.
Photophore 3 and light-receiving device 4 are fixed on the side of PCB components 2.The side wall of switch case 1 is formed with the window of transmitted light
Hole is installed with optical filtering 12 at fenestra.The light that photophore 3 is sent out is projected through fenestra and optical filtering 12, then through outside
After baffle reflection, light-receiving device 4 is injected through fenestra and optical filtering 12.Optical filtering 12 is used for filtering light of the visible light with other wavelength
Interference to light-receiving device 4, it is preferred to use infrared to penetrate PC plastic.
Light source fixing part 5 is equipped in cavity 11, light source fixing part 5 is mounted between optical filtering 12 and PCB components 2, in light
There are two can pass through the first through hole 51 and the second through-hole 52 of light to the inside system of source fixing piece 5.It is logical that photophore 3 is fixed on first
The inner end in hole 51.Light-receiving device 4 is fixed on the inner end of the second through-hole 52.
The outer end of first through hole 51 is installed with first collector lens 53, and the first beam is formed at the middle part of first through hole 51
Unthreaded hole 54.The outer end of second through-hole 52 is installed with the second light transparent lens 55, and the second beam is formed at the middle part of the second through-hole 52
Unthreaded hole 56.
First collector lens 53 realize that the wide-angle light beam of photophore 3 becomes low-angle light beam.Second light transparent lens 55 are right
Light has spotlight effect, improves the detection sensitivity of light-receiving device 4.
Light source fixing part 5 is used for fixing photophore 3 and light-receiving device 4, and passes through the first beam unthreaded hole 54 and the second beam unthreaded hole 56
Limit the angle of light.
The both sides of light source fixing part 5 are formed with the ladder bayonet 57 being fixedly connected with 1 inner wall of switch case.
The top of switch case 1 is equipped with light guide plate 6 and the adjusting knob being connected with PCB components 27, for adjusting
The sensitivity of retroreflecting formula optoelectronic switch and output type.6 lower section of light guide plate is equipped with power supply indicator 94 and working condition refers to
Show that lamp 95, power supply indicator 94 are connected by power branch with power interface.Working station indicator 95 and three pole of indicator light
The emitter of pipe 96 is connected, the GP5 interfaces of the base stage connection processing chip 87 of indicator light triode 96, collector connection electricity
Source.
It is another embodiment of the invention shown in Fig. 4, in this embodiment, photophore 3 is fixed on first through hole
51 inner end, and be connected with PCB components 2, the light that photophore 3 is sent out directly is projected by fenestra and optical filtering 12.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (3)
1. a kind of retroreflecting optoelectronic switch, including switch case (1), the switch case (1) is interior to be fixed with PCB components
(2), the photophore (3) for sending out detection light and the light-receiving device (4) for receiving baffle reflection light；The PCB
The signal output apparatus that component (2) is formed with the illuminating circuit being connected with photophore (3) and is connected with light-receiving device (4)；Institute
The photophore (3) stated sends out detection light and is incuded by the light-receiving device (4) after reflection returns, and passes through signal output apparatus
Export electric signal；The photophore (3) is light emitting diode；It is characterized in that：
The illuminating circuit includes Power Entry Module, rectifying and voltage-stabilizing module, the light modulation mould being connected with photophore (3)
Block；Photophore (3) uses light source wave band for the infrared light-emitting diode of 880nm, and the light that photophore (3) is sent out is anti-through outside
It penetrates plate to reflect, then is detected by light-receiving device (4) induction；
The light-receiving device (4) is phototriode；The signal output apparatus includes the signal being connected with light-receiving device (4)
Amplification module, modulation circuit module, clocked logic module and signal output module；
The Power Entry Module includes power input interface；The rectifying and voltage-stabilizing module includes power supply chip (81)；Institute
The power supply chip (81) stated is equipped with Vout interfaces, Vin interfaces and GND interfaces；The Vout interface and GND interfaces is respectively with
The both ends of one capacitance (82) are connected, and GND interfaces are connected with ground terminal；The Vin interface and GND interfaces is respectively with
The both ends of two capacitances (83) are connected, and are parallel with first resistor (84), the first diode at the both ends of the second capacitance (83)
(85) and out splice going splice (86) constitute output branch；
The PCB components (2) include processing chip (87)；The optical modulator module includes light modulation triode (88)；Institute
The collector for stating light modulation triode (88) is connected with the out splice going splice (86), the photophore (3) described in base series
The GP0 interfaces of connection processing chip (87) afterwards；
The collector of the light-receiving device (4) connects power input interface with base stage by second resistance, is connected with and connects in base terminal
The polar capacitor (89) on ground；The emitter of the light-receiving device (4) passes through variable resistance (91) and third capacitance (92) and amplification three
The GP2 interfaces of pole pipe (93) connection processing chip (87)；
The switch case (1) is square plastic casing；It is formed with the installation PCB components in the inside of switch case (1)
(2), the cavity (11) of photophore (3) and light-receiving device (4)；It is equipped on the top of cavity (11) and is fixedly connected with PCB components (2)
PCB fixed plates (21)；The photophore (3) and light-receiving device (4) is fixed on the side of the PCB components (2)；The switch housing
The side wall of body (1) is formed with the fenestra of transmitted light, and optical filtering (12) is installed at the fenestra；
Be equipped with light source fixing part (5) in the cavity (11), the light source fixing part (5) be mounted on optical filtering (12) and
Between PCB components (2), light source fixing part (5) inside system there are two can by the first through hole (51) of light and second lead to
Hole (52)；The photophore (3) is fixed on the inner end of first through hole (51)；The light-receiving device (4) is fixed on the second through-hole
(52) inner end.
2. a kind of retroreflecting optoelectronic switch according to claim 1, it is characterized in that：The outer end of the first through hole (51)
First collector lens (53) are installed with, the first beam unthreaded hole (54) is formed in the middle part of first through hole (51)；Described second is logical
The outer end in hole (52) is installed with the second light transparent lens (55), and the second beam unthreaded hole is formed in the middle part of the second through-hole (52)
(56)；The both sides of the light source fixing part (5) are formed with the ladder bayonet (57) being fixedly connected with switch case (1) inner wall.
3. a kind of retroreflecting optoelectronic switch according to claim 2, it is characterized in that：The top of the switch case (1)
The adjusting knob (7) for being equipped with light guide plate (6) and being connected with PCB components (2)；Electricity is equipped with below the light guide plate (6)
Source indicator light (94) and working station indicator (95), the power supply indicator (94) pass through power branch and power interface phase
Connection；The working station indicator (95) is connected with the emitter of indicator light triode (96), the indicator light three
The GP5 interfaces of the base stage connection processing chip (87) of pole pipe (96), collector connect power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368739.7A CN105897237B (en) | 2016-05-30 | 2016-05-30 | A kind of retroreflecting optoelectronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368739.7A CN105897237B (en) | 2016-05-30 | 2016-05-30 | A kind of retroreflecting optoelectronic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105897237A CN105897237A (en) | 2016-08-24 |
| CN105897237B true CN105897237B (en) | 2018-11-13 |
Family
ID=56710702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610368739.7A Active CN105897237B (en) | 2016-05-30 | 2016-05-30 | A kind of retroreflecting optoelectronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105897237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332550B (en) * | 2017-08-16 | 2020-04-24 | 温州洞头恒达冶金设备制造有限公司 | Correlation formula photoelectric switch |
| CN114111582B (en) * | 2021-12-13 | 2023-06-16 | 西华大学 | Pile foundation heavy hammer alignment device and application method |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250599Y (en) * | 1995-12-11 | 1997-03-26 | 许春华 | Limiting switch for light travelling distance |
| CN201018466Y (en) * | 2006-11-17 | 2008-02-06 | 上海华铭智能终端设备有限公司 | Photoelectric sensor |
| CN201181336Y (en) * | 2008-04-03 | 2009-01-14 | 甘海苗 | Long-distance scattered reflection type photoelectric sensor |
| JP4812153B2 (en) * | 2000-03-16 | 2011-11-09 | 株式会社キーエンス | Photoelectric switch |
| CN102244511A (en) * | 2010-05-12 | 2011-11-16 | 上海领芯微电子有限公司 | Application-specific integrated circuit for remote infrared photoelectric switch and remote infrared photoelectric switch using same |
| CN102636151A (en) * | 2012-04-19 | 2012-08-15 | 王振兴 | Laser range finder and range finding method thereof |
| CN202634392U (en) * | 2012-04-13 | 2012-12-26 | 上海秋田电器科技有限公司 | Sewing machine reflective photoelectric switch |
| CN103138726A (en) * | 2013-01-24 | 2013-06-05 | 衢州昀睿工业设计有限公司 | Non-contact reversing button switch |
| CN103744123A (en) * | 2013-12-17 | 2014-04-23 | 上海兰宝传感科技股份有限公司 | Multifunctional diffuse reflection photoelectric sensor |
| CN103744122A (en) * | 2013-12-17 | 2014-04-23 | 上海兰宝传感科技股份有限公司 | Zero-blind-spot diffuse reflection type photoelectric sensor |
| CN103792638A (en) * | 2012-10-30 | 2014-05-14 | 欧姆龙株式会社 | Optical sensor |
| CN203630370U (en) * | 2013-12-17 | 2014-06-04 | 上海兰宝传感科技股份有限公司 | Zero-blind-area diffuse-reflection-type photoelectric sensor |
| CN203870274U (en) * | 2014-02-23 | 2014-10-08 | 欧姆龙株式会社 | Photoelectric sensor |
| CN204068913U (en) * | 2014-07-10 | 2014-12-31 | 胡济涵 | A kind of Novel reflection-type optoelectronic switch |
| CN204539108U (en) * | 2015-02-27 | 2015-08-05 | 东莞市长资实业有限公司 | A kind of photoelectric integral type mechanical axis keyboard switch module |
| CN204906349U (en) * | 2015-09-08 | 2015-12-23 | 毛维芳 | Correlation formula photoelectric switch |
| CN105261507A (en) * | 2015-08-19 | 2016-01-20 | 东莞市美光达光学科技有限公司 | Thin keyboard on-off key group structure generating press touch feel and rebounded rapidly |
| CN105572653A (en) * | 2016-01-12 | 2016-05-11 | 中国科学院半导体研究所 | Method for protecting photosensitive surface of detector |
| CN205666813U (en) * | 2016-05-30 | 2016-10-26 | 宁波星宇极光传感科技有限公司 | Retro -reflection formula photoelectric switch |
-
2016
- 2016-05-30 CN CN201610368739.7A patent/CN105897237B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250599Y (en) * | 1995-12-11 | 1997-03-26 | 许春华 | Limiting switch for light travelling distance |
| JP4812153B2 (en) * | 2000-03-16 | 2011-11-09 | 株式会社キーエンス | Photoelectric switch |
| CN201018466Y (en) * | 2006-11-17 | 2008-02-06 | 上海华铭智能终端设备有限公司 | Photoelectric sensor |
| CN201181336Y (en) * | 2008-04-03 | 2009-01-14 | 甘海苗 | Long-distance scattered reflection type photoelectric sensor |
| CN102244511A (en) * | 2010-05-12 | 2011-11-16 | 上海领芯微电子有限公司 | Application-specific integrated circuit for remote infrared photoelectric switch and remote infrared photoelectric switch using same |
| CN202634392U (en) * | 2012-04-13 | 2012-12-26 | 上海秋田电器科技有限公司 | Sewing machine reflective photoelectric switch |
| CN102636151A (en) * | 2012-04-19 | 2012-08-15 | 王振兴 | Laser range finder and range finding method thereof |
| CN103792638A (en) * | 2012-10-30 | 2014-05-14 | 欧姆龙株式会社 | Optical sensor |
| CN103138726A (en) * | 2013-01-24 | 2013-06-05 | 衢州昀睿工业设计有限公司 | Non-contact reversing button switch |
| CN103744123A (en) * | 2013-12-17 | 2014-04-23 | 上海兰宝传感科技股份有限公司 | Multifunctional diffuse reflection photoelectric sensor |
| CN103744122A (en) * | 2013-12-17 | 2014-04-23 | 上海兰宝传感科技股份有限公司 | Zero-blind-spot diffuse reflection type photoelectric sensor |
| CN203630370U (en) * | 2013-12-17 | 2014-06-04 | 上海兰宝传感科技股份有限公司 | Zero-blind-area diffuse-reflection-type photoelectric sensor |
| CN203870274U (en) * | 2014-02-23 | 2014-10-08 | 欧姆龙株式会社 | Photoelectric sensor |
| CN204068913U (en) * | 2014-07-10 | 2014-12-31 | 胡济涵 | A kind of Novel reflection-type optoelectronic switch |
| CN204539108U (en) * | 2015-02-27 | 2015-08-05 | 东莞市长资实业有限公司 | A kind of photoelectric integral type mechanical axis keyboard switch module |
| CN105261507A (en) * | 2015-08-19 | 2016-01-20 | 东莞市美光达光学科技有限公司 | Thin keyboard on-off key group structure generating press touch feel and rebounded rapidly |
| CN204906349U (en) * | 2015-09-08 | 2015-12-23 | 毛维芳 | Correlation formula photoelectric switch |
| CN105572653A (en) * | 2016-01-12 | 2016-05-11 | 中国科学院半导体研究所 | Method for protecting photosensitive surface of detector |
| CN205666813U (en) * | 2016-05-30 | 2016-10-26 | 宁波星宇极光传感科技有限公司 | Retro -reflection formula photoelectric switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105897237A (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101858758B (en) | Photoelectric sensor | |
| CN106059554A (en) | Diffuse reflection photoelectric switch | |
| CN106448029B (en) | Smoke detector and light Smoke Detection unit for smoke detector | |
| US9291497B2 (en) | Sensor system having a plurality of coupled sensors | |
| CN105509926B (en) | Light path coupling device and fluorescence temperature sensing optical system | |
| CN101515400A (en) | Device and method for detecting smoke through joint evaluation of two optical backscattering signals | |
| JP2574780B2 (en) | Reflective photoelectric switch | |
| CN102565011B (en) | Optical sensor and detection method thereof | |
| CN208536980U (en) | A kind of non-contact optoelectronic formula liquid level induction system and liquid heater | |
| CN204906352U (en) | Diffuse reflection photoelectric switch | |
| CN105897237B (en) | A kind of retroreflecting optoelectronic switch | |
| CN201583673U (en) | Photoelectric transducer | |
| US9927290B2 (en) | Arrangement and method for detecting and indicating laser radiation | |
| CN205666813U (en) | Retro -reflection formula photoelectric switch | |
| CN204906349U (en) | Correlation formula photoelectric switch | |
| CN105978545B (en) | A kind of correlation optoelectronic switch | |
| CN110361718A (en) | A kind of detection method and device that light source is abnormal luminous | |
| CN205647483U (en) | Correlation formula photoelectric switch | |
| CN103389519A (en) | Detecting and warning system for laser attacking directions | |
| CN205647484U (en) | Diffuse reflection photoelectric switch | |
| CN100403347C (en) | Interference photoelectric smoke and fire detecting method and its device | |
| CN203632637U (en) | Anti-interference photoelectric switch | |
| CN210405261U (en) | Photoelectric correlation switch | |
| CN215180883U (en) | Background suppression type photoelectric sensor | |
| CN212903254U (en) | Remote correlation photoelectric sensor with TCP-LINK communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170801 Address after: 315514, Zhejiang, Ningbo province Fenghua District Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Applicant after: XINGYU ELECTRON (NINGBO) CO.,LTD. Address before: 315514, Ningbo, Zhejiang province Fenghua Jiangkou Street Square Bridge Industrial Zone Hengfeng Road West End Applicant before: NINGBO XINGYU AURORA SENSING CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A return reflection photoelectric switch Effective date of registration: 20210918 Granted publication date: 20181113 Pledgee: Bank of China Limited by Share Ltd. Fenghua branch Pledgor: XINGYU ELECTRON (NINGBO) Co.,Ltd. Registration number: Y2021330001729 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230808 Granted publication date: 20181113 Pledgee: Bank of China Limited by Share Ltd. Fenghua branch Pledgor: XINGYU ELECTRON (NINGBO) CO.,LTD. Registration number: Y2021330001729 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |