CN205665507U - Infrared laser lamp -house of fiber optic coupling formula - Google Patents
Infrared laser lamp -house of fiber optic coupling formula Download PDFInfo
- Publication number
- CN205665507U CN205665507U CN201620533265.2U CN201620533265U CN205665507U CN 205665507 U CN205665507 U CN 205665507U CN 201620533265 U CN201620533265 U CN 201620533265U CN 205665507 U CN205665507 U CN 205665507U
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- resistance
- optical fiber
- manifold type
- laser instrument
- semiconductor
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
The utility model provides an infrared laser lamp -house of fiber optic coupling formula, belongs to linear array camera illumination compensation field. The problem of current image detection system gather the image, inhomogeneous because of illumination luminance, and produce wavelength drift along with the temperature variation to it is poor to lead to the definition is solved. It includes fiber optic coupling formula laser instrument and heat abstractor, and it includes drive unit, drive unit includes trigger circuit and constant -current drive circuit, drive unit and fiber optic coupling formula laser instrument are fixed on heat abstractor, and heat abstractor is used for dispelling the heat for drive unit and fiber optic coupling formula laser instrument, and trigger circuit's the triggering signal output and the triggering signal input of fiber optic coupling formula laser instrument are connected, and constant -current drive circuit's the constant -current signal output and the constant -current signal input of fiber optic coupling formula laser instrument are connected. Its mainly used carries out illumination compensation to the linear array camera.
Description
Technical field
This utility model belongs to line-scan digital camera illumination compensation field.
Background technology
Railway locomotive and vehicle as the core of railway transportation, car body parts etc. break down or abnormal will be serious
Affecting traffic safety, therefore the safety detection of railway locomotive and vehicle becomes more important.The most widely used image detection
System, major part uses LED as compensatory light, generally there is light energy and do not concentrate, shooting image night on daytime, at a distance
The problem such as over-exposed during the direct projection of the extraneous light such as brightness irregularities, sunlight, has a strong impact on shooting picture quality nearby；Part system
System have employed LASER Light Source as compensatory light, but is integral type LASER Light Source, and compensatory light in use needs and phase
Machine is together arranged on rail track, laser instrument train by time can be because being reduced service life by significant shock, simultaneously
Owing to outdoor temperature changes greatly, laser instrument can produce wave length shift along with variations in temperature, and then affects picture quality.
Picture quality determines inspection car operation quality, and when picture quality is poor, inspection car personnel cannot judge row according to image
Car fault, can bring hidden danger to traffic safety, meanwhile, along with the further development of image recognition technology, fault automatically identify by
Gradually replacing manual work, poor picture quality will improve fault misdescription rate and rate of failing to report, and identification automatic to fault is sent out
There is certain restriction in exhibition.
Utility model content
This utility model is to solve conventional images detecting system collection image, because of illumination brightness irregularities, and along with
Variations in temperature and produce wave length shift, thus cause the problem of poor definition, this utility model provides a kind of optical fiber manifold type
Infrared laser light source.
A kind of optical fiber manifold type infrared laser light source, it includes optical fiber manifold type laser instrument and heat abstractor, and it includes driving
Moving cell；
Described driver element includes triggering circuit and constant-current drive circuit；
Driver element and optical fiber manifold type laser instrument are fixed on heat abstractor, and heat abstractor is for driver element and light
Fine manifold type laser instrument dispels the heat, and the outfan triggering circuit is connected with the positive input terminal of optical fiber manifold type laser instrument, constant current
The outfan of drive circuit is connected with the negative input end of optical fiber manifold type laser instrument.
Described triggering circuit includes resistance R1, resistance R2, resistance R3, optocoupler and metal-oxide-semiconductor Q1；
Constant-current drive circuit includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, operational amplifier
With metal-oxide-semiconductor Q2；
One end of resistance R1 is for receiving the triggering signal of external trigger, the other end of resistance R1 and the diode of optocoupler
Positive pole connect, the negative pole of the diode of optocoupler connect power supply ground, the colelctor electrode of the phototriode of optocoupler is connected with power supply VCC,
The emitter stage of the phototriode of optocoupler is connected with one end of resistance R2 and one end of resistance R3 simultaneously, the other end of resistance R2 and
The grid of metal-oxide-semiconductor Q1 connects, and the drain electrode of metal-oxide-semiconductor Q1 is connected with power supply VCC, and the source electrode of metal-oxide-semiconductor Q1 is as the output triggering circuit
End is connected with the positive input terminal of optical fiber manifold type laser instrument；
Another termination power ground of resistance R3,
One end of one end of resistance R8, operational amplifier earth terminal and resistance R9 connects, and a termination power of resistance R9
Ground,
The other end of resistance R8 is connected with the other end of resistance R7 and the positive input of operational amplifier simultaneously,
The power end of operational amplifier, one end of resistance R7 and power supply VCC are simultaneously connected with,
The reverse input end of operational amplifier is connected with one end of resistance R5 and one end of resistance R6 simultaneously, and resistance R5's is another
One end is connected with the outfan of operational amplifier and one end of resistance R4 simultaneously, the other end of resistance R4 and the grid of metal-oxide-semiconductor Q2
Connecting, the source electrode of metal-oxide-semiconductor Q2 is connected with the other end of resistance R6 and the other end of resistance R9 simultaneously,
The drain electrode of metal-oxide-semiconductor Q2 connects with the negative input end of optical fiber manifold type laser instrument as the outfan of constant-current drive circuit
Connect.
Described a kind of optical fiber manifold type infrared laser light source, it also includes that temperature-control circuit, described temperature control
The control signal outfan of circuit is connected with the control signal input of heat abstractor.
Described temperature-control circuit includes temperature sensor T, resistance R10, resistance R11, resistance R12, resistance R13, ratio
Relatively device and metal-oxide-semiconductor Q3；
Temperature sensor is for detecting driver element and the temperature of optical fiber manifold type laser instrument, the ground connection of temperature sensor T
Termination GND, the voltage signal output end of temperature sensor T is connected with one end of resistance R10, the other end of resistance R10 with compare
The positive input of device connects,
The other end of the one termination power VCC of the power supply termination power VCC, resistance R11 of comparator, resistance R11 simultaneously with
One end of resistance R12 and the reverse input end of comparator connect, and the earth terminal of comparator connects with the other end of resistance R12 simultaneously
GND,
Comparator voltage signal output part is connected with one end of resistance R13, the other end of resistance R13 and the grid of metal-oxide-semiconductor Q3
Pole connects, and the source electrode of metal-oxide-semiconductor Q3 connects drain the control signal outfan as temperature-control circuit and the heat radiation of GND, metal-oxide-semiconductor Q3
The control signal input of device connects.
Described heat abstractor is cooling piece, fin or fan.
Described a kind of optical fiber manifold type infrared laser light source, it also includes that housing, described driver element, optical fiber couple
Formula laser instrument and heat abstractor are positioned at housing.
The iraser that laser is 778nm to 838nm wavelength of described optical fiber manifold type laser instrument output.
The purpose of this utility model is to provide a kind of optical fiber manifold type infrared laser light source, to realize inspection dynamic to image
The shooting illumination compensation of examining system, is effectively improved rolling stock and locomotive picture quality that image detecting system gathers, solves to clap
Take the photograph the problem such as over-exposed when image night on daytime, the extraneous light such as brightness irregularities, sunlight direct projection nearby at a distance, be more beneficial for
Rolling stock and the image automatic identification of locomotive failure.
This utility model brings and provides the benefit that, a kind of optical fiber manifold type iraser light described in the utility model
Source, to realize the shooting illumination compensation to image dynamic detection system, is effectively improved the rolling stock that image detecting system gathers
With locomotive picture quality, solve to expose when shooting image night on daytime, the extraneous light such as brightness irregularities, sunlight direct projection nearby at a distance
The problems such as light is excessive, are more beneficial for the image automatic identification of rolling stock and locomotive failure.
It is the most stable that a kind of optical fiber manifold type infrared laser light source described in the utility model is mountable to indoor equitemperature
Environment in, by optical fiber coupled modes, iraser is sent to rail limit, this utility model and integral type of the prior art
Laser instrument is compared, and can effectively reduce optical maser wavelength drift, reduces the vibrations impact on laser instrument；The luminescence of this utility model light source
Wavelength is single infrared light, it is possible to effectively remove visible ray impact, effectively solves shooting image night on daytime, the brightest
Spend uneven, the problem such as over-exposed when extraneous light direct projections such as sunlight；With existing railway locomotive and vehicle image collection system
System uses light source to compare, and owing to efficiently solving existing issue, improves picture quality, would be even more beneficial to the automatic of fault picture
Identify.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of optical fiber manifold type infrared laser light source described in the utility model；Reference 5
Represent output optical fibre；
Fig. 2 is the circuit theory schematic diagram of the driver element described in detailed description of the invention one；
Fig. 3 is the circuit theory schematic diagram of the temperature-control circuit described in detailed description of the invention four.
Detailed description of the invention
Detailed description of the invention one: see Fig. 1 and Fig. 2 and present embodiment is described, a kind of optical fiber coupling described in present embodiment
Box-like infrared laser light source, it includes optical fiber manifold type laser instrument 2 and heat abstractor 3, and it includes driver element 1；
Described driver element 1 includes triggering circuit 1-1 and constant-current drive circuit 1-2；
Driver element 1 and optical fiber manifold type laser instrument 2 are fixed on heat abstractor 3, and heat abstractor 3 is for driver element
1 and optical fiber manifold type laser instrument 2 dispel the heat, trigger the positive input terminal of outfan and the optical fiber manifold type laser instrument 2 of circuit 1-1
Connecting, the outfan of constant-current drive circuit 1-2 is connected with the negative input end of optical fiber manifold type laser instrument 2.
Present embodiment, a kind of optical fiber manifold type infrared laser light source described in the utility model, it is mountable to indoor etc.
In the metastable environment of temperature, by optical fiber coupled modes, iraser is sent to rail limit, this utility model and existing skill
Integral type laser instrument in art is compared, and can effectively reduce optical maser wavelength drift, reduces the vibrations impact on laser instrument；This practicality is new
The emission wavelength of type light source is single infrared light, it is possible to effectively remove visible ray impact, effectively solves shooting image night on daytime
Evening, at a distance brightness irregularities the most nearby, the problem such as over-exposed when extraneous light direct projections such as sunlight；With existing railway locomotive and car
Image capturing system uses light source to compare, and owing to efficiently solving existing issue, improves picture quality, would be even more beneficial to therefore
The automatic identification of barrier image.
Detailed description of the invention two: see Fig. 1 and Fig. 2 and present embodiment, present embodiment and detailed description of the invention one are described
The difference of described a kind of optical fiber manifold type infrared laser light source is, described triggering circuit 1-1 includes resistance R1, resistance
R2, resistance R3, optocoupler U1 and metal-oxide-semiconductor Q1；
Constant-current drive circuit 1-2 includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, operation amplifier
Device U2 and metal-oxide-semiconductor Q2；
One end of resistance R1 is for receiving two poles of the triggering signal of external trigger, the other end of resistance R1 and optocoupler U1
The positive pole of pipe connects, and the negative pole of the diode of optocoupler U1 meets power supply ground, the colelctor electrode of the phototriode of optocoupler U1 and power supply VCC
Connecting, the emitter stage of the phototriode of optocoupler U1 is connected with one end of resistance R2 and one end of resistance R3 simultaneously, resistance R2's
The other end is connected with the grid of metal-oxide-semiconductor Q1, and the drain electrode of metal-oxide-semiconductor Q1 is connected with power supply VCC, and the source electrode of metal-oxide-semiconductor Q1 is as triggering electricity
The outfan of road 1-1 is connected with the positive input terminal of optical fiber manifold type laser instrument 2；
Another termination power ground of resistance R3,
One end of one end of resistance R8, operational amplifier U2 earth terminal and resistance R9 connects, and a termination electricity of resistance R9
Seedbed,
The other end of resistance R8 is connected with the other end of resistance R7 and the positive input of operational amplifier U2 simultaneously,
The power end of operational amplifier U2, one end of resistance R7 and power supply VCC are simultaneously connected with,
The reverse input end of operational amplifier U2 is connected with one end of resistance R5 and one end of resistance R6 simultaneously, resistance R5's
The other end is connected with the outfan of operational amplifier U2 and one end of resistance R4 simultaneously, and the other end of resistance R4 is with metal-oxide-semiconductor Q2's
Grid connects, and the source electrode of metal-oxide-semiconductor Q2 is connected with the other end of resistance R6 and the other end of resistance R9 simultaneously,
The negative input end with optical fiber manifold type laser instrument 2 of the outfan as constant-current drive circuit 1-2 that drains of metal-oxide-semiconductor Q2
Connect.
In present embodiment, constant-current drive circuit 1-2 is for providing stable electric current to believe to optical fiber manifold type laser instrument 2
Number, the size of electric current will determine the light power of optical fiber manifold type laser instrument 2.Trigger circuit 1-1 and use light-coupled isolation, be used for connecing
Receiving external trigger level signal, when outer triggering signal is high level, metal-oxide-semiconductor Q1 turns on, and optical fiber manifold type laser instrument 2 goes out
Light；When outer triggering signal is low level, metal-oxide-semiconductor Q1 ends, and optical fiber manifold type laser instrument 2 does not go out light.
Detailed description of the invention three: present embodiment and a kind of optical fiber manifold type iraser described in detailed description of the invention one
The difference of light source is, it also includes temperature-control circuit 4, and the control signal outfan of described temperature-control circuit 4 is with scattered
The control signal input of thermal 3 connects.
Detailed description of the invention four: see Fig. 3 and illustrate described in present embodiment, present embodiment and detailed description of the invention three
The difference of a kind of optical fiber manifold type infrared laser light source is, described temperature-control circuit 4 includes temperature sensor T, resistance
R10, resistance R11, resistance R12, resistance R13, comparator U3 and metal-oxide-semiconductor Q3；
Temperature sensor is for detecting driver element 1 and the temperature of optical fiber manifold type laser instrument 2, and temperature sensor T connects
Ground termination GND, the voltage signal output end of temperature sensor T is connected with one end of resistance R10, the other end of resistance R10 with than
The positive input of relatively device U3 connects,
The other end of the one termination power VCC of the power supply termination power VCC, resistance R11 of comparator U3, resistance R11 is simultaneously
Being connected with one end of resistance R12 and the reverse input end of comparator U3, the earth terminal of comparator U3 is same with the other end of resistance R12
Time meet GND,
Comparator U3 voltage signal output end is connected with one end of resistance R13, and the other end of resistance R13 is with metal-oxide-semiconductor Q3's
Grid connect, the source electrode of metal-oxide-semiconductor Q3 connect GND, metal-oxide-semiconductor Q3 drain electrode as temperature-control circuit 4 control signal outfan with
The control signal input of heat abstractor 3 connects.
In present embodiment, the temperature signal of the optical fiber manifold type laser instrument 2 that can gather according to temperature sensor, automatically open
Open and close heat abstractor 3, it is achieved the control of temperature.
Detailed description of the invention five: see Fig. 1 and 2 and present embodiment is described, present embodiment and detailed description of the invention one,
Two, the difference of a kind of optical fiber manifold type infrared laser light source described in three or four is, described heat abstractor 3 be cooling piece,
Fin or fan.
Detailed description of the invention six: see Fig. 1 and Fig. 2 and present embodiment, present embodiment and detailed description of the invention one are described
The difference of described a kind of optical fiber manifold type infrared laser light source is, it also includes housing, described driver element 1, optical fiber
Manifold type laser instrument 2 and heat abstractor 3 are positioned at housing.
Present embodiment so that a kind of optical fiber manifold type infrared laser light source described in the utility model obtains good envelope
Dress, improves portability.
Detailed description of the invention seven: see Fig. 1 and Fig. 2 and present embodiment, present embodiment and detailed description of the invention one are described
The difference of described a kind of optical fiber manifold type infrared laser light source is, the laser of described optical fiber manifold type laser instrument 2 output
Iraser for 778nm to 838nm wavelength.
Claims (7)
1. an optical fiber manifold type infrared laser light source, it includes optical fiber manifold type laser instrument (2) and heat abstractor (3), and it is special
Levying and be, it includes driver element (1)；
Described driver element (1) includes triggering circuit (1-1) and constant-current drive circuit (1-2)；
Driver element (1) and optical fiber manifold type laser instrument (2) are fixed on heat abstractor (3), and heat abstractor (3) drives for giving
Unit (1) and optical fiber manifold type laser instrument (2) dispel the heat, and trigger outfan and the optical fiber manifold type laser instrument of circuit (1-1)
(2) positive input terminal connects, and the outfan of constant-current drive circuit (1-2) connects with the negative input end of optical fiber manifold type laser instrument (2)
Connect.
A kind of optical fiber manifold type infrared laser light source the most according to claim 1, it is characterised in that described triggering circuit
(1-1) resistance R1, resistance R2, resistance R3, optocoupler (U1) and metal-oxide-semiconductor Q1 are included；
Constant-current drive circuit (1-2) includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, operational amplifier
And metal-oxide-semiconductor Q2 (U2)；
One end of resistance R1 is for receiving the diode of the triggering signal of external trigger, the other end of resistance R1 and optocoupler (U1)
Positive pole connect, the negative pole of the diode of optocoupler (U1) connect power supply ground, the colelctor electrode of the phototriode of optocoupler (U1) and power supply
VCC connects, and the emitter stage of the phototriode of optocoupler (U1) is connected with one end of resistance R2 and one end of resistance R3 simultaneously, resistance
The other end of R2 is connected with the grid of metal-oxide-semiconductor Q1, and the drain electrode of metal-oxide-semiconductor Q1 is connected with power supply VCC, and the source electrode of metal-oxide-semiconductor Q1 is as touching
The outfan of Power Generation Road (1-1) is connected with the positive input terminal of optical fiber manifold type laser instrument (2)；
Another termination power ground of resistance R3,
One end of one end of resistance R8, operational amplifier (U2) earth terminal and resistance R9 connects, and a termination power of resistance R9
Ground,
The other end of resistance R8 is connected with the other end of resistance R7 and the positive input of operational amplifier (U2) simultaneously,
The power end of operational amplifier (U2), one end of resistance R7 and power supply VCC are simultaneously connected with,
The reverse input end of operational amplifier (U2) is connected with one end of resistance R5 and one end of resistance R6 simultaneously, and resistance R5's is another
One end is connected with the outfan of operational amplifier (U2) and one end of resistance R4 simultaneously, and the other end of resistance R4 is with metal-oxide-semiconductor Q2's
Grid connects, and the source electrode of metal-oxide-semiconductor Q2 is connected with the other end of resistance R6 and the other end of resistance R9 simultaneously,
The drain electrode of the metal-oxide-semiconductor Q2 outfan as constant-current drive circuit (1-2) and the negative input end of optical fiber manifold type laser instrument (2)
Connect.
A kind of optical fiber manifold type infrared laser light source the most according to claim 1, it is characterised in that it also includes temperature control
Circuit processed (4), the control signal outfan of described temperature-control circuit (4) and the control signal input of heat abstractor (3)
Connect.
A kind of optical fiber manifold type infrared laser light source the most according to claim 3, it is characterised in that described temperature controls
Circuit (4) includes temperature sensor T, resistance R10, resistance R11, resistance R12, resistance R13, comparator (U3) and metal-oxide-semiconductor Q3；
Temperature sensor is used for detecting driver element (1) and the temperature of optical fiber manifold type laser instrument (2), and temperature sensor T connects
Ground termination GND, the voltage signal output end of temperature sensor T is connected with one end of resistance R10, the other end of resistance R10 with than
The positive input of relatively device (U3) connects,
The other end of the one termination power VCC of the power supply termination power VCC, resistance R11 of comparator (U3), resistance R11 simultaneously with
The reverse input end of one end of resistance R12 and comparator (U3) connects, the earth terminal of comparator (U3) and the other end of resistance R12
Meet GND simultaneously,
Comparator (U3) voltage signal output end is connected with one end of resistance R13, the other end of resistance R13 and the grid of metal-oxide-semiconductor Q3
Pole connect, the source electrode of metal-oxide-semiconductor Q3 meets GND, the drain electrode of metal-oxide-semiconductor Q3 as temperature-control circuit (4) control signal outfan with
The control signal input of heat abstractor (3) connects.
5. according to a kind of optical fiber manifold type infrared laser light source described in claim 1,2,3 or 4, it is characterised in that described
Heat abstractor (3) is cooling piece, fin or fan.
A kind of optical fiber manifold type infrared laser light source the most according to claim 1, it is characterised in that it also includes housing,
Described driver element (1), optical fiber manifold type laser instrument (2) and heat abstractor (3) are positioned at housing.
A kind of optical fiber manifold type infrared laser light source the most according to claim 1, it is characterised in that described optical fiber coupling
The iraser that laser is 778nm to 838nm wavelength that formula laser instrument (2) exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533265.2U CN205665507U (en) | 2016-06-02 | 2016-06-02 | Infrared laser lamp -house of fiber optic coupling formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533265.2U CN205665507U (en) | 2016-06-02 | 2016-06-02 | Infrared laser lamp -house of fiber optic coupling formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205665507U true CN205665507U (en) | 2016-10-26 |
Family
ID=57158766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620533265.2U Withdrawn - After Issue CN205665507U (en) | 2016-06-02 | 2016-06-02 | Infrared laser lamp -house of fiber optic coupling formula |
Country Status (1)
| Country | Link |
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| CN (1) | CN205665507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867048A (en) * | 2016-06-02 | 2016-08-17 | 哈尔滨市科佳通用机电有限公司 | Optical fiber coupling type infrared laser light source |
-
2016
- 2016-06-02 CN CN201620533265.2U patent/CN205665507U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867048A (en) * | 2016-06-02 | 2016-08-17 | 哈尔滨市科佳通用机电有限公司 | Optical fiber coupling type infrared laser light source |
| CN105867048B (en) * | 2016-06-02 | 2019-01-18 | 哈尔滨市科佳通用机电股份有限公司 | A kind of fiber coupling formula infrared laser light source |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 150060 Heilongjiang Province, Harbin City Economic Development Zone haping Road District No. 2 Weifang Road Patentee after: Harbin Kejia general electrical Limited by Share Ltd Address before: 150060 Heilongjiang Province, Harbin City Economic Development Zone haping Road District No. 2 Weifang Road Patentee before: Kejian Universal Electromechanical Co., Ltd., Harbin |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20190118 |