CN100540979C - The synchronous zoom device of laser illuminator - Google Patents
The synchronous zoom device of laser illuminator Download PDFInfo
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- CN100540979C CN100540979C CNB2007100154832A CN200710015483A CN100540979C CN 100540979 C CN100540979 C CN 100540979C CN B2007100154832 A CNB2007100154832 A CN B2007100154832A CN 200710015483 A CN200710015483 A CN 200710015483A CN 100540979 C CN100540979 C CN 100540979C
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- laser illuminator
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- circuit control
- zoom
- transmission mechanism
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Abstract
The invention discloses a kind of laser illuminator, disclose a kind of synchronous zoom device of laser illuminator especially.The synchronous zoom device of this laser illuminator, its special character is: comprise two parts: intelligent circuit control section and the mechanical transmission mechanism with zoom position signal feedback: described intelligent circuit control section adopts microprocessor, modulus conversion chip and output to drive chip; Described mechanical transmission mechanism changes the light angle of laser illuminator, provides feedback signal for the circuit control section simultaneously.The present invention can keep the synchronous zoom of luminaire automatically according to the variation of imaging lens focal length.Whole device is simple to operate, adaptability is strong, is particularly suitable for using in the laser night vision system.
Description
(1) technical field
The present invention relates to a kind of laser illuminator, the application apparatus when synchronous zoom device, the especially laser instrument that is meant a kind of laser illuminator especially is used as the zoom lighting source.
(2) background technology
Along with the development of laser lighting night vision technology, the variable power zoom laser illuminator of light angle has appearred.The name of patent application of the applicant invention is that 20062008456.1 utility model patent can be regulated the laser lighting angle on a large scale for " Zooming apparatus of long-distance large-range semiconductor laser lighting device " number of patent application, and adopt electronic control mode, its highly versatile, can be combined with existing security protection control appliance easily, operating personnel can control the light angle of zoom laser illuminator separately in background control end, make its angle of visual field consistent, reach the optimal illumination imaging effect with the varifocal imaging camera lens.But this adjusting is independent of outside the camera lens, also needs to regulate separately the luminaire light angle after regulating lens focus, can not realize both synchronous zoom, still has a lot of inconvenience in the application.
(3) summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, a kind of synchronous zoom device that can adjust the laser illuminator of light angle along with the variation of lens focus automatically is provided, laser light source light angle and lens focus are changed synchronously, guarantee in the excursion of lens focus, to make the light angle of laser instrument and the visual field size of camera lens to reach the optimum Match effect.
The present invention is achieved through the following technical solutions:
A kind of synchronous zoom device of laser illuminator, its special character is: comprise two parts: intelligent circuit control section and the mechanical transmission mechanism with zoom position signal feedback:
Described intelligent circuit control section adopts microprocessor, modulus conversion chip and output to drive chip; This part receives the feedback signal from camera lens and laser illuminator zoom position, according to the data judgement camera lens of measuring in advance and the position difference of luminaire light source, adjusts mechanical transmission mechanism automatically;
Described mechanical transmission mechanism changes the light angle of laser illuminator, provides feedback signal for the circuit control section simultaneously; Travelling gear drives the slide rheostat on next door, and the zoom position information of laser illuminator is converted into voltage signal, offers the circuit control section as feedback.
The synchronous zoom device of laser illuminator of the present invention, described mechanical transmission mechanism are electronic control, change the luminaire light angle, and produce the zoom position feedback signal simultaneously.
The present invention has the synchronous zoom function, and laser illuminator is enough adjusts self light angle automatically along with the focal length variations of camera lens, and control centre is a microprocessor.Described circuit control panel is made up of microprocessor and analog to digital conversion circuit, drive circuit etc., comprises the software section in the microprocessor.Microprocessor is detector lens feedback signal and luminaire transmission mechanism feedback signal simultaneously, judges according to given data.
Its operation principle is as follows:
Focal length feedback signal from imaging lens, enter microprocessor through analog-to-digital conversion, microprocessor is according to the data of storing in advance, judge that laser illuminator needs the direction of zoom, the control mechanical transmission mechanism moves, and detect the feedback signal of mechanical transmission mechanism in real time, coincide up to corresponding data with the microprocessor internal storage.
Feedback signal is the voltage signal of the above-mentioned laser illuminator zoom position of reflection, and the sliding contact that mechanical transmission mechanism drives slide rheostat changes, thereby changes the contact of slide rheostat and the voltage between the ground.
Reach good synchronous effect, must guarantee the accuracy of storage data.The acquisition of data is such: write process of measurement in microprocessor, manually change lens focus, manually change the laser illuminator focal length simultaneously, consistent up to the luminaire illumination zone with the camera lens field range, read lens data and the luminaire data of this moment then by serial ports of computers, note, way changes lens focus in proper order according to this, obtains one group of data.Organize data with this and write control program, reach the purpose of intelligent measuring control synchronous zoom as parameter.
The present invention has following characteristics:
1, the trouble of independent zoom has been saved in the autozoom of laser illuminator, and the focal length of directly regulating camera lens just can reach the optimal illumination angle, obtains the optimal imaging effect, and is easy to operate.
2, the zoom position of laser illuminator adopts high-accuracy potentiometer to measure precision height, precise control.
3, the zoom position signal feedback mechanism of laser illuminator is simple and reliable, and cost is low, and the life-span is long, easily installs.
The present invention can keep the synchronous zoom of luminaire automatically according to the variation of imaging lens focal length.Adopt intelligent microprocessor chip, the synchronization accuracy height.Whole device is simple to operate, adaptability is strong, is particularly suitable for using in the laser night vision system.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the independent zoom control principle block diagram of prior art;
Fig. 2 is a synchronous zoom control principle block diagram of the present invention;
Fig. 3 is a kind of specific embodiment of the present invention;
Fig. 4 is an another kind of specific embodiment of the present invention.
Among the figure, 11 laser illuminators, 12A/D converter, 13A/D converter, 14 microprocessors, 15 servo control mechanisms, 16 camera lenses, 17 slide rheostats, 18 motors.
(5) specific embodiment
Fig. 1 is independent zoom control principle figure, and independent zoom control system is to be the control system of major control device with people.Observe camera lens zoom position information and laser illuminator zoom position information by the operator, to judge whether present laser illuminator is in the optimal illumination effect, if laser illuminator is in the optimal illumination zoom position now, then keep present zoom position motionless, otherwise control the laser instrument controlling organization by the operator, make it reach the optimal illumination effect.
Because people's observation is near practical effect, so the illuminating effect of this operating system is best.But autonomous control system must be controlled by the people, and camera lens zoom position information is in case change the necessary laser instrument zoom position of adjusting in real time of operator.To the operation that people's dependence makes this system can't break away from the people, be difficult to realize in real time control automatically.
Fig. 2 is synchronous zoom control principle figure.This device comprises two parts: intelligent circuit control section and the mechanical transmission mechanism with zoom position signal feedback.Intelligent circuit control section of the present invention adopts general 8-bit microprocessor, cooperates modulus conversion chip and output to drive chip, reaches the intelligent purpose of handling related data and output control.In order to strengthen microprocessor work stability and to adapt to different camera lenses, house dog and serial port communication chip have been added in the circuit.This part can receive the feedback signal from camera lens and laser illuminator zoom position, according to the data judgement camera lens of measuring in advance and the position difference of luminaire light source, adjusts mechanical transmission mechanism automatically.Mechanical transmission mechanism of the present invention is used for changing the light angle of laser illuminator, provides feedback signal for the circuit control section simultaneously.Travelling gear drives the high accuracy slide rheostat on next door, and the zoom position information of laser illuminator is converted into voltage signal, offers the circuit control section as feedback.These two parts of the present invention are organic wholes, form a closed loop feedback structure jointly.Wherein microprocessor is a control centre, makes laser illuminator reach the purpose of automatic synchronous zoom by corresponding software.
The characteristics of synchronous zoom control system maximum are to replace the people to come whole system is realized control automatically with microprocessor.System reads camera lens zoom position information and laser illuminator zoom position information by microprocessor, judge by the set logic of microprocessor internal whether luminaire is in the optimal illumination zoom position, if be in the optimal illumination zoom position, then retentive control mechanism is motionless, otherwise microprocessor control laser instrument controlling organization makes laser illuminator arrive the optimal illumination zoom position.
The set logic of microprocessor internal is the one group of data that is pre-existing in microprocessor internal.These data obtain by following method: write process of measurement in microprocessor, manually change lens focus, manually change the laser illuminator focal length simultaneously, consistent up to the luminaire illumination zone with the camera lens field range, read lens data and the luminaire data of this moment then by serial ports of computers, note, way changes lens focus in proper order according to this, obtains one group of data.Therefore, operator's decision logic is identical in the decision logic of microcontroller inside and the autonomous control system, so its control effect is also identical.Under the prerequisite that guarantees the each several part transmission accuracy, practical effect also is identical.
Fig. 3 is the use-case of Fuji's energy 750 camera lenses.The zoom position voltage of camera lens 16 is input to A/D converter 13, and the data signal after the conversion is sent in the microprocessor 14; Simultaneously, the zoom position voltage of laser illuminator 11 is input to A/D converter 12 by high accuracy slide rheostat 17, and the data signal after the conversion is sent in the microprocessor 14; Microprocessor 14 judges by the set logic in inside whether present laser illuminator is in the optimal illumination zoom position, rotates by servo control mechanism 15 control motors 18 according to judged result, reaches the optimal illumination zoom position up to luminaire.
The internal logic of microprocessor 14 is one group of data, and these group data are by obtaining by serial communication with main frame, and deposit microprocessor 14 inside in.The existing detailed description in detail in concrete grammar front that these group data obtain repeats no more.
The internal logic control array of Fuji's energy 750 camera lenses is as follows:
The camera lens array:
{0x8e，0x8b，0x88，0x82，0x7d，0x79，0x74，0x6a，0x63，0x5f，0x5a，0x57，0x53，0x4e，0x4c，0x48，0x46，0x44，0x43，0x40，0x3f，0x3d，0x3b，0x38，0x36，0x33，0x31，0x2f，0x2e，0x2c，0x2a，0x29，0x28，0x24，0x22，0x21，0x1f，0x1e，0x1d，0x1c，0x1b，0x1a，0x19}。
The laser lighting array:
{0x2a，0x2b，0x2e，0x32，0x35，0x38，0x3b，0x3f，0x45，0x48，0x4a，0x4e，0x50，0x52，0x55，0x57，0x59，0x5b，0x5e，0x5f，0x60，0x65，0x67，0x69，0x6e，0x74，0x79，0x7b，0x7e，0x86，0x8a，0x8e，0x92，0x95，0x9d，0xa7，0xaf，0xbf，0xc8，0xd0，0xdf，0xec，0xee}。
Fig. 4 is the use-case of Fuji's energy 374 camera lenses.The zoom position voltage of camera lens 16 is input to A/D converter 13, and the data signal after the conversion is sent in the microprocessor 14; Simultaneously, the zoom position voltage of laser illuminator 11 is input to A/D converter 12 by high accuracy slide rheostat 17, and the data signal after the conversion is sent in the microprocessor 14; Microprocessor 14 judges by the set logic in inside whether present laser illuminator is in the optimal illumination zoom position, rotates by servo control mechanism 15 control motors 18 according to judged result, reaches the optimal illumination zoom position up to luminaire.
The internal logic of microprocessor 14 is one group of data, and these group data are by obtaining by serial communication with main frame, and deposit microprocessor 14 inside in.The existing detailed description in detail in concrete grammar front that these group data obtain repeats no more.
The internal logic control array of Fuji's energy 374 camera lenses is as follows:
The camera lens array:
{0x09，0x15，0x1e，0x27，0x2b，0x39，0x3f，0x48，0x51，0x59，0x61，0x67，0x6f，0x7a，0x82，0x8b，0x97，0xa4，0xad，0xb8，0xc9，0xd5，0xf9}。
The laser illuminator array:
{0x76，0x74，0x73，0x72，0x70，0x6f，0xfe，0x6d，0x6c，0x6b，0x68，0x65，0x62，0x60，0x5e，0x5a，0x57，0x51，0x4b，0x41，0x3a，0x37，0x37}。
Claims (2)
1. the synchronous zoom device of a laser illuminator is characterized in that: comprise two parts: intelligent circuit control section and the mechanical transmission mechanism with zoom position signal feedback:
Described intelligent circuit control section adopts microprocessor, modulus conversion chip and output to drive chip; This part receives the feedback signal from camera lens and laser illuminator zoom position, according to the data judgement camera lens of measuring in advance and the position difference of laser illuminator light source, adjusts mechanical transmission mechanism automatically;
Described mechanical transmission mechanism changes the light angle of laser illuminator, provides feedback signal for the intelligent circuit control section simultaneously; Travelling gear drives the slide rheostat on next door, and the zoom position information of laser illuminator is converted into voltage signal, offers the intelligent circuit control section as feedback; Described mechanical transmission mechanism is electronic control, changes the laser illuminator light angle, and produces the zoom position feedback signal simultaneously.
2, the synchronous zoom device of laser illuminator according to claim 1 is characterized in that: added house dog and serial port communication chip in the intelligent circuit control section.
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| CNB2007100154832A CN100540979C (en) | 2007-05-11 | 2007-05-11 | The synchronous zoom device of laser illuminator |
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| CNB2007100154832A CN100540979C (en) | 2007-05-11 | 2007-05-11 | The synchronous zoom device of laser illuminator |
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| CN100540979C true CN100540979C (en) | 2009-09-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591365A (en) * | 2011-12-20 | 2012-07-18 | 北京和普威视光电技术有限公司 | Method and device for accurately controlling follow-up illumination angle |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186017B (en) * | 2011-04-29 | 2013-03-13 | 广州中朗润业数码科技有限公司 | Manual focusing infrared camera |
| CN104284090B (en) * | 2014-09-28 | 2017-10-27 | 天津市亚安科技有限公司 | The method that varifocal lighting apparatus links with Varifocal zoom lens video camera |
| CN106412434B (en) * | 2016-10-11 | 2020-11-10 | 中国人民解放军陆军军官学院 | Method for self-adapting brightness and focal length of laser vision-aid imaging image |
| CN107490853A (en) * | 2017-09-19 | 2017-12-19 | 天津津航技术物理研究所 | A kind of surgical operation microscope illuminates zooming adjustment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591365A (en) * | 2011-12-20 | 2012-07-18 | 北京和普威视光电技术有限公司 | Method and device for accurately controlling follow-up illumination angle |
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| CN101050842A (en) | 2007-10-10 |
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Denomination of invention: Synchronous zooming device for laser lighting device Effective date of registration: 20160114 Granted publication date: 20090916 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan high tech branch Pledgor: SHANDONG SHEENRUN OPTICS & ELECTRONICS Co.,Ltd. Registration number: 2016370000003 |
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Date of cancellation: 20180115 Granted publication date: 20090916 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan high tech branch Pledgor: SHANDONG SHEENRUN OPTICS & ELECTRONICS Co.,Ltd. Registration number: 2016370000003 |
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Denomination of invention: Synchronous zoom device for laser illuminators Effective date of registration: 20230911 Granted publication date: 20090916 Pledgee: Bank of Beijing Co.,Ltd. Jinan Branch Pledgor: SHANDONG SHEENRUN OPTICS & ELECTRONICS Co.,Ltd. Registration number: Y2023980056126 |