CN104216090A - Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) - Google Patents
Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) Download PDFInfo
- Publication number
- CN104216090A CN104216090A CN201410440449.XA CN201410440449A CN104216090A CN 104216090 A CN104216090 A CN 104216090A CN 201410440449 A CN201410440449 A CN 201410440449A CN 104216090 A CN104216090 A CN 104216090A
- Authority
- CN
- China
- Prior art keywords
- resonance
- area array
- lens
- optical system
- ccd
- 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.)
- Pending
Links
Abstract
A stepping staring type optical system for a resonance lens compensation type area array CCD (charge coupled device) is used for the field of infrared photoelectric detection and tracking. A streaking phenomenon existing in an alarming detection process of the existing area array infrared CCD optoelectronic device is avoided. A front lens subassembly, a resonance lens subassembly and an infrared area array CCD subassembly are coaxially placed in the system from left to right, wherein the resonance lens subassembly comprises an angle measuring element, a resonance voice coil motor and a resonance lens; the angle measuring element, the resonance voice coil motor and the resonance lens are integrally assembled in a linear installation mode; the deflection angle of the resonance lens can be precisely outputted by the angle measuring element; the front lens subassembly consists of a plurality of lenses; the lenses are placed coaxially; the front lens subassembly has an optical path compression and collimation function; sceneries in a view field can be compressed into a range which can be received by a CCD target surface; and the resonance lens subassembly is arranged at a position between the front lens subassembly and the infrared area array CCD subassembly and is positioned at a narrowest position of a light beam in the optical system.
Description
Technical field
The present invention relates to resonance lens compensation formula area array CCD stepping gazing type optical system, adopt resonance lens to solve the optical system of the streaking problem caused in the battle array infrared CCD scanning imagery process of face, be applied to infrared electro Detection And Tracking field.
Background technology
The main performance index of infrared electro Detection And Tracking equipment requires to include detection range, effectively spatial domain alarm cycle sweep time, target following and judges sensitivity etc.The general features of electro-optical equipment of electronic warfare first utilizes infrared band detector or visible light wave range TV to realization of goal discovery, recognition and tracking, then starts interference or injure class laser instrument carries out specific band interference or destruction destruction to target.Track sight generally adopts stealthy passive type to receive in this process, and counterdevice generally adopts active laser to launch.Track sight needs all the time fast accurate tracking jamming target, and laser beam emitting device needs to complete interference to target or destruction according to the high precision pointing of track sight.Based on this principle, infrared electro Detection And Tracking device involved in photoelectronic warfare field needs the ability possessed the alarm of target quick detection and high precision tracking location.Current infrared warning and tracking detector part comprise line array CCD and area array CCD.The imaging characteristics of infrared line array CCD carries out imaging by the mode of scanning to the scenery in visual field, the advantage of this device is that imaging clearly is without hangover, shortcoming be then the scan period long, cannot when meeting scan period time requirement to the continuous sweep imaging of a certain spatial domain, this just causes its detection range near and the track demand cannot taken into account target.And area array CCD is formed from essence by many linear CCD assembling techniques, do not need in its imaging process to be realized by scanning as line array CCD, therefore can in the shorter time to the repeatedly imaging or increase imaging integral time of the scenery in visual field, more remote target detection just can be arrived by this.Therefore infrared area array CCD can realize required by photoelectronic warfare to target with high precision following function.Due to during the battle array infrared CCD imaging of face without the need for mechanical scanning process, therefore system can realize short period alarm scanning.No matter at alarm sweep phase or all excellent than line array CCD performance in target tracking stage from the infrared area array CCD of principle.But be still main flow at current photoelectricity alarm field of detecting practical application middle infrared (Mid-IR) battle array CCD, infrared area array CCD is mainly used in the continuous probe imaging in tracking to target or certain specific spatial domain.Infrared area array CCD of tracing it to its cause has scenery conditions of streaking in rapid scanning process, when infrared surface battle array CCD in circumferential movement process cannot to target become clearly as.The technical bottleneck of this infrared area array CCD in the application of alarm field of detecting significantly limit the release of its advantage.And then cause in photoelectronic warfare field, to need infrared warning to detect and Continuous Tracking two cover system, and these two functions working method that a set of infrared area array CCD imaging system stepping is stared cannot be integrated.
Summary of the invention
In alarm detection operations process, streaking phenomenon is there will be in order to solve existing battle array infrared CCD electrooptical device, and then cause infrared area array CCD cannot be directly used in the problem of infrared warning operation, the invention provides a kind of resonance lens compensation formula area array CCD stepping gazing type optical system being applicable to infrared warning Detection And Tracking device.
Resonance lens compensation formula area array CCD stepping gazing type optical system, this optical system coaxially places front lens assembly, resonance lens subassembly and infrared area array CCD assembly from left to right; Wherein resonance lens subassembly comprises angle measurement element, resonance voice coil motor and resonance lens, the mode that described angle measurement element, resonance voice coil motor and resonance lens adopt straight line to install is carried out integration and is assembled, and angle measurement element can the deflection angle of export resonance lens accurately;
Described front lens assembly is made up of multi-disc eyeglass, and multiple eyeglass is coaxially placed; This front lens assembly has the function of light path compression and collimation, the scenery in visual field can be compressed to the scope that CCD target surface can receive;
Described resonance lens subassembly is arranged on front lens assembly and infrared area array CCD assembly middle position, and is arranged in the narrowest position of optical system light beam.
The invention has the beneficial effects as follows: the resonance lens that the present invention can realize high frequency beat are introduced in traditional infrared alarm light path, for compensate infrared optical system to move on the infrared area array CCD that causes become the hangover of target image, the final stepping gazing type photoelectricity alarm Detection And Tracking realized based on infrared area array CCD.Realize infrared area array CCD being used for the fast infrared alarm in photoelectronic warfare field and detection, thus play that it is farther compared to infrared line array CCD detection range, alarm speed advantage faster.
The basis of traditional infrared warning sniffer is improved: 1, high frequency beat transmission-type galvanometer is placed in face battle array infrared CCD photoelectricity alarm detection system light path, during for compensating whole system alarm, Fast Azimuth rotates the streaking problem caused.The direction of motion of galvanometer and speed need with the direction of motion of whole photoelectricity alarm detection system and speeds match, due to the refraction of the compensating motion realize target light of galvanometer, within face battle array infrared CCD the to carry out imaging several milliseconds of times to the target in visual field, namely ensure that visual field target light keeps static relative to CCD target surface.Circumferential movement is carried out by certain speed because photoelectricity alarm detection system need remain, and the imaging of staring profile battle array infrared CCD system need keep the light path light stabilisation in integral time, this just requires that the beat direction of galvanometer in system imaging process is contrary with the direction of motion of entire system.Scanning motion process is eliminated relative in the array 1 system course of work of linear array infrared CCD face, and then save the time, so just, can to realize face battle array infrared CCD to be used in infrared warning sniffer and to become target image clearly, thus giving full play to face battle array infrared CCD to the remote imaging of target and fast imaging.This requirement that is far away for unfriendly target detection range, detect cycle block pursued for photoelectronic warfare field is very useful.2, in photoelectronic warfare field, employing face battle array infrared CCD realizes infrared warning detecting function, can by current alarm and following function independently two cover systems be incorporated in set of system, realize the alarm Detection And Tracking function to target simultaneously.Linear array infrared CCD must have mechanical motion to participate in target imaging, the CCD pixel orientation of current linear array infrared warning system is how vertical with the direction of motion of total system, therefore must be in circumferential movement all the time in linear array infrared warning system work process, the Continuous Tracking to a certain regional aim cannot be realized, system can only revolve to turn around and carry out a target detection and identification, this alarm for the rapid movement guided missile in photoelectronic warfare field or opportunity of combat is very disadvantageous for following the tracks of, therefore current infrared warning detection system only can provide the warning information to target, other equipment then often to be relied on to realize the precision tracking of target after alarm completes, this is on cost or is all very disadvantageous in time.Face battle array infrared CCD then can realize the lasting tracking to target, and the tailing problem of therefore CCD imaging during galvanometer resolution system motion quick by introducing, then can realize infrared warning Detection And Tracking function by same set of equipment.Face battle array infrared CCD carries out for the mode of staring by stepping during alarm detection process, motion process and the current the same continuous rotation of linear array infrared CCD warning system of whole optical system, stepping is embodied in the battle array infrared CCD integral process of face, when CCD after the imaging that system completes a certain visual field stops carrying out imaging to target, the quick beat of galvanometer is to desired location, when CCD after system motion to next field of view starts to carry out imaging to this regional aim, galvanometer and system coordination campaign in this process, scene image when CCD imaging is started does not produce displacement relative to target surface all the time, so just, can eliminate because system is moved the streaking problem caused all the time.When after the imaging that CCD completes this regional aim, galvanometer also synchronously stops, then entering the alarm imaging in next region.The face stepping of battle array infrared CCD in alarm detection process can be realized thus stare.Because the integral time during battle array infrared CCD imaging of face is very short, therefore improve the detectivity to target to during a certain regional imaging by lengthening mode integral time, the detection range of such system will be much far away than existing linear array infrared CCD detection system.Because in the battle array infrared CCD detection process of face, system does not need to carry out scanning motion, therefore when system completes alarm detection, after providing the higher target azimuth angle information of threat, this system can stop circumferential movement, visual field is coverage goal all the time, now system just proceeds to tracing mode by alarm detection mode, continues the high precision position information of output target to electro-optical countermeasure svstem.A set of like this planar array type electro-optical system just can complete the function that in current main-stream application, alarm detection and following function are completed by distinct device relay respectively, greatly simplifies the system composition of electro-optical equipment of electronic warfare, and improves the alarm detectivity to target.
Accompanying drawing explanation
Fig. 1 is the structural representation of resonance lens compensation formula area array CCD stepping gazing type optical system of the present invention.
Fig. 2 is resonance lens subassembly structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1, 2, resonance lens compensation formula area array CCD stepping gazing type optical system, this optical system coaxially places front lens assembly 1, resonance lens subassembly 2 and infrared area array CCD assembly 3 from left to right; Wherein resonance lens subassembly 2 comprises angle measurement element 4, resonance voice coil motor 5 and resonance lens 6, the mode that angle measurement element 4, resonance voice coil motor 5 and resonance lens 6 adopt straight line to install carries out integration assembling, and angle measurement element 4 can the deflection angle of export resonance lens 6 accurately.
The effect that front lens assembly 1 is provided within the system is compressed with the light path that traditional optical system provides, alignment function is consistent, the scenery in visual field can be compressed to the scope that CCD target surface can receive.This front lens assembly 1 is made up of multi-disc eyeglass, for ensureing the high consistency of each lens light axis, adopts the mode of centering car to carry out in assembling process.
Resonance lens subassembly 2 is positioned at front lens assembly 1 and infrared area array CCD assembly middle position, is placed on the position that in optical system, light beam is the narrowest, so that reduce the volume of resonance lens subassembly 2.
Resonance lens 6 adopt can through the ZnSe material of infrared specific band, the anti-reflection film wavelength of this material and the wavelength of infrared area array CCD assembly 3 completely the same.
Resonance lens 6 adopt the mode of refraction, to occurring in optical system motion process that object scene hangover compensates.
Angle measurement element 4 need adopt absolute grating or capacity cell, according to relative type motor angle measuring system, then needs to possess zero compensation function.
Keep normally working in angle measurement element 4 and the range of temperature of resonance voice coil motor 5 during system works, and without temperature drift, realize this function by increasing temperature control system if desired.
When the bore of infrared detection system and focal length less time, front lens assembly 1 can adopt this direct optical system form.When optical system be heavy caliber system or long-focus system time, front lens assembly 1 also can adopt the structure of resonance lens subassembly 2 to carry out streaking compensation.Because the motion of galvanometer swings for coming and going variable speed, therefore its acceleration is very large, require that the moment of inertia of resonance lens 6 is little as much as possible, therefore in Optical System Design process, need the diameter of a certain position compression light beam taken into full account in light path, thus reduce the diameter of resonance lens 6, and then reduce the torque requirement to resonance voice coil motor 5.
Resonance lens subassembly 2 carries out periodic intermittent oscillation when face battle array infrared CCD optical system does at the uniform velocity orientation alarm detection.When whole optical system carries out optical tracking, the mode of motion of resonance lens subassembly then needs to carry out corresponding matched motion according to the speed of optical path-deflecting and direction.If tracking target for meet head on guided missile or aircraft time, due to whole battle array infrared CCD optical system and zero deflection move, therefore resonance lens subassembly 2 does not need to carry out deflection compensated yet, and lower of this state need meet the aplanatism condition of system.
Infrared area array CCD assembly 3 is planar array detector part, itself possesses and stares function, and it stares function with the stepping of feasible system when comprising the optical system cooperating of resonance lens subassembly 2.
As shown in Figure 1, when system is in the alarm detection process to target, entirety is done uniform circular motion thus is realized 360 ° of comprehensive scannings to spatial domain.System determines the parameters such as CCD integrating rate, integral time, system motion speed, the integration imaging number of times of final certainty annuity CCD within a scan period according to parameters such as field angle, focal length, face battle array infrared CCD target surface pixel dimension and numbers.According to the parameter such as the period of motion, rate curve of these setting parameter resonance lens.Different systems and galvanometer kinematic parameter can be set according to different demand, but the coordination coupling of both kinematic parameters must be ensured.When CCD starts imaging to a certain field of view, galvanometer by curve movement uniform motion by initial zero of coupling, by compensating the refraction of light because system is moved this initial visual field scenery skew on CCD caused all the time.When CCD completes the imaging integration to this initial field of view, galvanometer synchronously stops swinging to the opposite direction of turntable.Because system is in uniform circular motion process all the time, now direction when CCD starts imaging has been departed from system light path center, but not yet arrives next imaging viewing field region.In the time course of system motion to next imaging region, galvanometer is moved to initial zero direction by quick backswing.Put mirror when system arrives next imaging region and be just positioned at initial zero position, speed is at the uniform velocity setting value during compensating motion just.Now just complete the alarm detection of a minor cycle.The product of the orientation angles of system visual field and the number of minor cycle is 360 °.Face battle array infrared CCD system can be realized by constantly repeating this minor cycle process the alarm in full spatial domain is detected.When system is in the tracing process to target, entirety does not do uniform circular motion, but does follow-up motion according to the position of target.As shown in Figure 1, the galvanometer of this mounting means only can compensate the target image hangover of orientation single direction, then needing a horizontal galvanometer again, compensating simultaneously to the target image hangover of both direction to complete to the pitching hangover of image.In this precision tracking process, system need be carried out servo-actuated according to the motion of lock onto target, and galvanometer then needs to carry out corresponding matched motion according to the movement locus of system.
Claims (4)
1. resonance lens compensation formula area array CCD stepping gazing type optical system, is characterized in that: this optical system coaxially places front lens assembly (1), resonance lens subassembly (2) and infrared area array CCD assembly (3) from left to right; Wherein resonance lens subassembly (2) comprises angle measurement element (4), resonance voice coil motor (5) and resonance lens (6), the mode that described angle measurement element (4), resonance voice coil motor (5) and resonance lens (6) adopt straight line to install is carried out integration and is assembled, and angle measurement element (4) can the deflection angle of export resonance lens (6) accurately;
Described front lens assembly (1) is made up of multi-disc eyeglass, and multiple eyeglass is coaxially placed; This front lens assembly (1) has the function of light path compression and collimation, the scenery in visual field can be compressed to the scope that CCD target surface can receive;
Described resonance lens subassembly (2) is arranged on front lens assembly (1) and infrared area array CCD assembly (3) middle position, and is arranged in the narrowest position of optical system light beam.
2. resonance lens compensation formula area array CCD stepping gazing type optical system according to claim 1, it is characterized in that: described infrared area array CCD assembly (3) is planar array detector part, itself possess and stare function, it stares function with the stepping of feasible system when comprising the optical system cooperating of resonance lens subassembly (2).
3. resonance lens compensation formula area array CCD stepping gazing type optical system according to claim 1, it is characterized in that: described resonance lens (6) adopt can through the ZnSe material of infrared band, the anti-reflection film wavelength of this material and the wavelength of infrared area array CCD assembly (3) completely the same;
Described resonance lens (6) adopt the mode of refraction to occurring in optical system motion process that object scene hangover compensates.
4. resonance lens compensation formula area array CCD stepping gazing type optical system according to claim 1, is characterized in that: described angle measurement element (4) need adopt absolute grating or capacity cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440449.XA CN104216090A (en) | 2014-08-29 | 2014-08-29 | Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440449.XA CN104216090A (en) | 2014-08-29 | 2014-08-29 | Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104216090A true CN104216090A (en) | 2014-12-17 |
Family
ID=52097777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410440449.XA Pending CN104216090A (en) | 2014-08-29 | 2014-08-29 | Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104216090A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990930A (en) * | 2015-07-09 | 2015-10-21 | 中国科学院上海光学精密机械研究所 | Optical element defect laser near field modulating and detecting device and induced damage prediction method |
| CN111998801A (en) * | 2020-08-19 | 2020-11-27 | 哈尔滨新光光电科技股份有限公司 | Roll pendulum formula two-dimensional imaging mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3687035A (en) * | 1969-08-11 | 1972-08-29 | Robert A Morgan | Image motion compensation means for camera apparatus |
| US6477326B1 (en) * | 2000-08-31 | 2002-11-05 | Recon/Optical, Inc. | Dual band framing reconnaissance camera |
| CN1945416A (en) * | 2005-08-11 | 2007-04-11 | 夏普株式会社 | Electronic image pickup device with hand-shake compensation function and camera-equipped portable electronic device |
| US20110274419A1 (en) * | 2006-01-26 | 2011-11-10 | Nikon Corporation | Lens barrel, camera and lens barrel adjustment device |
| CN102901620A (en) * | 2012-10-31 | 2013-01-30 | 中国科学院长春光学精密机械与物理研究所 | Universal high-precision adjusting and detection device for laser beam combining system and application thereof |
-
2014
- 2014-08-29 CN CN201410440449.XA patent/CN104216090A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3687035A (en) * | 1969-08-11 | 1972-08-29 | Robert A Morgan | Image motion compensation means for camera apparatus |
| US6477326B1 (en) * | 2000-08-31 | 2002-11-05 | Recon/Optical, Inc. | Dual band framing reconnaissance camera |
| CN1945416A (en) * | 2005-08-11 | 2007-04-11 | 夏普株式会社 | Electronic image pickup device with hand-shake compensation function and camera-equipped portable electronic device |
| US20110274419A1 (en) * | 2006-01-26 | 2011-11-10 | Nikon Corporation | Lens barrel, camera and lens barrel adjustment device |
| CN102901620A (en) * | 2012-10-31 | 2013-01-30 | 中国科学院长春光学精密机械与物理研究所 | Universal high-precision adjusting and detection device for laser beam combining system and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 李兴华: "高分辨力空间摄影相机像移补偿控制技术研究", 《中国优秀博硕士学位论文全文数据库 (博士) 工程科技Ⅱ辑》 * |
| 李延伟，远国勤: "面阵彩色航空遥感相机前向像移补偿机构精度分析", 《光学精密工程》 * |
| 远国勤: "具有前向像移补偿功能的彩色大面阵测绘相机内方位元素标定研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990930A (en) * | 2015-07-09 | 2015-10-21 | 中国科学院上海光学精密机械研究所 | Optical element defect laser near field modulating and detecting device and induced damage prediction method |
| CN104990930B (en) * | 2015-07-09 | 2017-10-20 | 中国科学院上海光学精密机械研究所 | Optical element defect laser near-field modulation detection device and induced damage Forecasting Methodology |
| CN111998801A (en) * | 2020-08-19 | 2020-11-27 | 哈尔滨新光光电科技股份有限公司 | Roll pendulum formula two-dimensional imaging mechanism |
| CN111998801B (en) * | 2020-08-19 | 2021-10-19 | 哈尔滨新光光电科技股份有限公司 | Roll pendulum formula two-dimensional imaging mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11774557B2 (en) | Distance measurement instrument with scanning function | |
| US8994819B2 (en) | Integrated optical detection system | |
| US20150116692A1 (en) | System and method for scan range gating | |
| US8536503B2 (en) | Faceted retro-mirror for line-of-sight jitter sensing | |
| CN103975250A (en) | Spatially selective detection using a dynamic mask in an image plane | |
| CN104335067A (en) | Coordinate measurement system and method | |
| US9121758B2 (en) | Four-axis gimbaled airborne sensor having a second coelostat mirror to rotate about a third axis substantially perpendicular to both first and second axes | |
| EP3869152B1 (en) | Surveying device with a coaxial beam deflection element | |
| CN105589075A (en) | Distance measurement instrument with scanning function | |
| CN104216090A (en) | Stepping staring type optical system for resonance lens compensation type area array CCD (charge coupled device) | |
| US7938542B2 (en) | Optical swiveling device for imaging and/or projection of an object scene | |
| CN106597422B (en) | Miniaturization photo-electricity passive ranging device | |
| CN102141436B (en) | Femtojoule-level laser micro energy meter having automatic tracking function | |
| GB2305573A (en) | High-speed optronic panoramic surveillance system | |
| AU779584B2 (en) | In-action boresight | |
| RU170789U1 (en) | MULTI-CHANNEL OPTICAL-LOCATION SYSTEM | |
| CN106017363B (en) | A kind of big working distance autocollimation of high dynamic precision and method | |
| Walther et al. | Accuracy analysis of a mobile tracking system for angular position determination of flying targets | |
| Acosta et al. | Enhanced laser ranging for micro UAV localization | |
| Pack et al. | Eyesafe ladar testbed with coaxial color imager | |
| RU2653158C1 (en) | Location optical-electronic module | |
| Buske et al. | Setup of a beam control system for high power laser system at DLR | |
| CN113701561A (en) | Airborne multispectral multi-optical-axis photoelectric system aerial dynamic axis correcting device and method | |
| RU53466U1 (en) | ONBOARD SCANNING DEVICE | |
| EA021666B1 (en) | Optoelectronic system of weapons system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |