CN1624509A - Push broom type high discriminability infrared focus plane image transmission beam conrersion photo electric imaging system - Google Patents
Push broom type high discriminability infrared focus plane image transmission beam conrersion photo electric imaging system Download PDFInfo
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- CN1624509A CN1624509A CN 200410089452 CN200410089452A CN1624509A CN 1624509 A CN1624509 A CN 1624509A CN 200410089452 CN200410089452 CN 200410089452 CN 200410089452 A CN200410089452 A CN 200410089452A CN 1624509 A CN1624509 A CN 1624509A
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Abstract
A broom super high resolution power infrared focal plane image transmitting beam change photo - electronic imaging system is disclosed. Using red-infrared optical fiber image transmitting beam and the corresponding image processing technology, it has changed the research requirement for overlong range of lines detector and the other refrigeration technology the huge infrared system into using the more advanced infrared focal plane array technique arrangement technology and computer image processing technology, which can obtain higher resolution power and better character, is benefit for optimizing design for system, reducing the complexity of system and decreasing the volume and weight of the photo - electronic imaging system, and is suitable for kinds of remote sensing photo - electronic imaging system of large monitoring and air monitoring. The invention includes the overlong array of lines optical array, scan imaging optical red-infr system, red-infr optical fiber image transmitting beam, optical fiber area array imaging coupler FPA which are connected optically and optoelectronic switching transmission interface linking the image processing part of the system.
Description
Technical field:
The present invention relates to a kind of infrared focus plane image transmission beam conversion photoelectronic imaging device, large-scale infrared electro imaging system focal plane spatial conversion of specifically a kind of ultrahigh resolution and disposal system, it has optimized system design, reduce system complexity, be reduced to picture system bulk and quality, especially be fit to large-scale monitoring on the various platforms, air scout and remote sensing of the earth photo electric imaging system and use.
Background technology:
Infrared acquisition has become one of large-scale monitoring, air scout and remote sensing of the earth photo electric imaging system important means.In high resolving power, big visual field infrared imaging, push away to sweep having obtained people's attention as a kind of advanced technology.For example ballistic missile early warning satellite requires to adopt 6000 long-line array row detectors to finish one-dimensional image, realizes other one-dimensional image by oscillatory scanning mechanism, and such pattern can provide zone covering fast.On the scout, wish to push away the superiority of the mode of sweeping in high resolution system and obtained clear and definite proof as far back as the SPOT of France series to push away the high efficiency acquisition of the mode of sweeping ground scenery image.10 meters of spatial resolutions, swath width 80km then needs 8000 yuan Long Wave Infrared Probe.So people have dropped into a large amount of research to infrared focus plane technology, the big cold Refrigeration Technique in long-life space in recent years, the technical barrier from different angles solves early warning and scouts.
The super long alignment detector is a ultrahigh resolution infrared imaging system core technology.France Sofradir has succeeded in developing 1500 yuan of medium wave infrared eyes of superior performance.Longer line array device does not then appear in the newspapers.Stare profile battle array focal plane owing to the extensive application of thermal imaging system technology in recent years obtains bigger progress.All there are product in France Sofradir, BeiJing, China 11 research institutes, Shanghai Institute of Technical Physics.
In addition, image fiber bundles has considerable progress in recent years, at aspects such as spectral instrument, Medical Instruments, guided missile alarm receivers application is arranged all.BeiJing, China glass research institute has developed the infrared optical fiber coherent fiber bundle of using with As-S core bag optical fiber preparation 1-6 mu m waveband in 1999.
As seen, adopt the small-scale face battle array device of dependable performance, carry out image transformation, obtain the super long alignment infrared eye and possess pacing items by optical fiber image transmission beam.
Summary of the invention
As mentioned above, how to solve the difficult problem of existing pull-broom type infrared electro imaging system to super long alignment detector and the proposition of corresponding Refrigeration Technique, to satisfy large-scale monitoring system and space flight and aviation remote sensing system, be the technical matters that will solve of the present invention to the high-resolution imaging system requirement.The purpose of this invention is to provide a kind of optical fiber image transmission beam conversion photo electric imaging system for this reason, utilize the comparatively ripe focal plane arrays (FPA) (FPAs) of technology to be embodied as picture, this imaging system can not only satisfy the requirement that the pull-broom type high-resolution imaging system is surveyed super long alignment, can utilize ripe focal plane arrays (FPA) (FPAs) Refrigeration Technique to solve a detector refrigeration difficult problem simultaneously.
The design that the present invention solves its technical matters is: adopt a kind of infrared optical fiber coherent fiber bundle of specific arrangement, an end is lined up alignment, and an end is lined up the face battle array, by the mode of direct or indirect coupling, realizes the conversion of super long alignment detection to planar array detector spare.Super long alignment is surveyed and is positioned on the scanning optical imaging system focal plane, by the infrared optical fiber coherent fiber bundle super long alignment detection being transformed to face battle array FPAs surveys, solve the difficulty in process of present processing super long alignment optical fiber image transmission beam by the super long alignment of staggered dense arrangement, the refrigeration problem is converted into face battle array FPAs detector this mature technology problem of freezing simultaneously, like this, just can solve a super long alignment processing and a refrigeration difficult problem.
Technical solution of the present invention is as follows:
According to a kind of pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system of the present invention, comprise an one scan imaging infrared optical system and an image processing section, characteristics are: also have one be positioned on the focal plane of this scanning imagery infrared optical system super long alignment optical fiber battle array and successively to be connected the infrared optical fiber coherent fiber bundle that image that this scanning imagery infrared optical system also will form carries out spatial alternation behind the optics on its focal plane, an one fiber facet battle array and an infrared focal plane array FPA and after connect the opto-electronic conversion transmission interface of described infrared focal plane array FPA, this transmission interface connects this image processing section.
The infrared optical fiber coherent fiber bundle of the staggered dense arrangement of infrared optical fiber coherent fiber bundle that described super long alignment optical fiber battle array is the dense arrangement of incident light end sexangle or incident light end;
Described fiber facet battle array is made of the xsect of many rows infrared optical fiber of the dense arrangement of sexangle, or is made of the xsect that the little square formation arrangement mode of square is arranged in many rows infrared optical fiber of square formation;
Further described fiber facet battle array becomes optical coupled to be connected through an imaging coupling mechanism with this infrared focal plane array FPA, and described imaging coupling mechanism is the lens imaging coupling mechanism; Or described fiber facet battle array becomes direct photon coupling or becomes optics to be connected coupling by an imaging coupling mechanism with described infrared focal plane array FPA, described optical coupler is itemized preferably for the lens imaging coupling mechanism, and described lens imaging coupling mechanism is a zoom lens imaging coupling mechanism.
Advantage of the present invention is:
1, owing to adopts infrared optical fiber coherent fiber bundle and respective image treatment technology, large-scale infrared imaging system is required to be converted to present mature infrared focal plane array technology of application and computer image processing technology to super long alignment detector and the development of relevant Refrigeration Technique thereof, help optimization system design, reduce system complexity, be fit to be applied to large-scale monitoring on the various platforms, air scout and remote sensing of the earth photo electric imaging system;
2, the infrared optical fiber coherent fiber bundle adopts the special-shaped optical fibre coherent fiber bundle of line face conversion, finishes the image super long alignment and detects the spatial alternation that the face battle array is surveyed, and is easy to implement;
3, the output of infrared optical fiber coherent fiber bundle can be imaged onto on the infrared focal plane array FPA by direct coupling or lens imaging coupling scheme, and structure is simple and clear;
4, only need require to take corresponding Refrigeration Technique, solve a refrigeration difficult problem of making the super long alignment detector according to infrared focal plane array FPA;
5, go up output image from infrared focal plane array FPA, carry out respective handling and spatial inverse transform through image processing section, recover the swath image at place, scanning optical imaging system focal plane, become final image through the time series swath image co-registration that obtains continuously then;
6, image is taken from the scanned imagery optical system focal plane, thereby can be applied to wide visual field and narrow visual field photo electric imaging system;
7, infrared optical fiber coherent fiber bundle super long alignment optical fiber battle array is made up of many rows optical fiber of the dense arrangement of sexangle, helps further improving systemic resolution and reliability, improves performances such as system signal noise ratio;
8, the super long alignment optical fiber battle array of being made up of many rows optical fiber of the dense arrangement of sexangle by taking staggered pattern, can be simplified the optical fiber processing technology, shortens the system development construction cycle;
When 9, adopting direct coupling system, alignment error can be the cladding thickness of optical fiber, satisfies this desirable coupling condition and will have very high coupling efficiency;
10, adopt the lens imaging coupling scheme can overcome the harsh requirement of direct coupling system to processing technology, as long as the lens imaging coupling mechanism can be imaged on output optical fibre face battle array on the FPA that resolution is equal to or higher than output optical fibre face battle array resolution, can obtain comparatively desirable imaging effect.
11, adopt Zoom lens imaging coupling mechanism, can make the infrared focal plane array FPA of photo electric imaging system adaptation different resolution and focal plane size, the dirigibility of enhanced system.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is an infrared optical fiber coherent fiber bundle photo electric imaging system structural representation of the present invention;
Fig. 2 is an infrared optical fiber coherent fiber bundle structural drawing of the present invention;
Fig. 3 is the dense Pareto diagram of infrared optical fiber coherent fiber bundle incident light end of the present invention;
Fig. 4 is the infrared optical fiber coherent fiber bundle incident light end of the present invention figure that is staggered;
Fig. 5 is that infrared optical fiber coherent fiber bundle output terminal square formation of the present invention is arranged and the coupling synoptic diagram;
Fig. 6 is a lens imaging coupling synoptic diagram of the present invention.
Embodiment
Provide better embodiment of the present invention according to Fig. 1-Fig. 6 below.But it is not to be used for limiting the present invention, but is used for better illustrating architectural feature of the present invention and functional characteristics.
In Fig. 1, super long alignment optical fiber battle array 2 is placed on the focal plane of scanning imagery infrared optical system 1, and image focal plane is passed through infrared optical fiber coherent fiber bundle 3 carry out outputing to fiber facet battle array 4 behind the spatial alternation, through 5 imagings on infrared focal plane array FPA6 of imaging coupling mechanism, formed image is sent to image processing section 8 through transmission interface 7 and carries out the respective image processing.
In the infrared optical fiber coherent fiber bundle structural drawing shown in Figure 2, super long alignment optical fiber battle array 2 can be selected dense arrangement mode of infrared optical fiber coherent fiber bundle incident light end sexangle shown in Figure 3 or the staggered dense arrangement mode of infrared optical fiber coherent fiber bundle incident light end shown in Figure 4 for use.In the present embodiment, super long alignment optical fiber battle array 2 is made up of many rows optical fiber of the dense arrangement of sexangle, and this technology will help further improving systemic resolution and reliability, improve performances such as system signal noise ratio.
In the infrared optical fiber coherent fiber bundle structural drawing shown in Figure 2, output optical fibre face battle array 4 can be selected dense arrangement mode shown in Figure 3 for use or select for use square little square formation arrangement mode shown in Figure 5 to be arranged in square formation.
Square little square formation arrangement mode shown in Figure 5 is corresponding one by one with the pixel 9 of infrared focal plane array FPA6, can constitute direct coupling system.If each pixel can all receive whole luminous energy of corresponding fiber core 11 outgoing, it then is desirable coupling, even exceeding FPA pixel 9, fibre cladding 10 do not constitute influence yet, therefore, alignment error can be the cladding thickness of optical fiber, and the alignment error that surpasses cladding thickness will bring extra optical energy loss and image fault.
Lens imaging coupling scheme shown in Figure 6 can overcome the harsh requirement of direct coupling system shown in Figure 5 to processing technology, output optical fibre face battle array 4 to dense arrangement mode or square little square formation arrangement mode arrangement all can be imaged onto on the FPA6, though it is big that the energy loss ratio that this coupling scheme are brought direct coupling system shown in Figure 5 is wanted, its great advantage is exactly as long as lens imaging coupling mechanism 5 can be imaged on output optical fibre face battle array 4 on the FPA that resolution is equal to or higher than output optical fibre face battle array 4 resolution, just can obtain comparatively desirable imaging effect.
Output optical fibre face battle array 4 directly is coupled or goes up output image by imaging coupling mechanism 5 to infrared focal plane array FPA6, carry out respective handling and spatial inverse transform through image processing section 8, recover the swath image at 2 places, scanning optical imaging system focal plane, become final image through the time series swath image co-registration that obtains continuously then.
Above-mentioned lens imaging coupling mechanism further can be taken zoom lens imaging coupling mechanism.
Claims (9)
1, a kind of pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system, comprise an infrared optics imaging system (1) and an image processing section (8), it is characterized in that, also has a super long alignment optical fiber battle array (2) that is positioned on the focal plane of this scanning imagery infrared optical system (1), connect this infrared optics imaging system (1) successively and will make an infrared optical fiber coherent fiber bundle (3) of spatial alternation at the image that its focal plane forms, an one fiber facet battle array (4) and an infrared focal plane array FPA (6), and after connect the opto-electronic conversion transmission interface (7) of this infrared focal plane array FPA (6), this transmission interface (7) connects the image processing section (8) of this system.
2, pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system according to claim 1, it is characterized in that described super long alignment optical fiber battle array (2) is the infrared optical fiber coherent fiber bundle of the dense arrangement of incident light end sexangle or the infrared optical fiber coherent fiber bundle of the staggered dense arrangement of incident light end.
3, pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system according to claim 1 is characterized in that described fiber facet battle array (4) is made of the xsect of many rows infrared optical fiber of the dense arrangement of sexangle.
4, pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system according to claim 1 is characterized in that described fiber facet battle array (4) is made of the xsect that the little square formation of square is arranged in many rows infrared optical fiber of square formation.
According to claim 1 or 3 described pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging systems, it is characterized in that 5, described fiber facet battle array (4) becomes optical coupled to be connected through an imager (5) with this infrared focal plane array FPA (6).
6, pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system according to claim 5 is characterized in that described imager (5) is the lens imaging coupling mechanism.
7, according to claim 1 or 4 described pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging systems, it is characterized in that described fiber facet battle array (4) becomes optical coupled to be connected or direct optics is of coupled connections through an imaging coupling mechanism (5) and this infrared focal plane array FPA (6).
8, pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging system according to claim 7 is characterized in that described imaging coupling mechanism (5) is the lens imaging coupling mechanism.
9, according to claim 6 or 8 described pull-broom type ultrahigh resolution infrared focus plane image transmission beam conversion photo electric imaging systems, it is characterized in that described lens imaging coupling mechanism is a zoom lens imaging coupling mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100894528A CN1297831C (en) | 2004-12-13 | 2004-12-13 | Push broom type high discriminability infrared focus plane image transmission beam conrersion photo electric imaging system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417225C (en) * | 2005-10-27 | 2008-09-03 | 中国科学院上海技术物理研究所 | Method of focal plane array image space-time changing based on fibre-optical coupled |
| CN101866031A (en) * | 2010-06-03 | 2010-10-20 | 北京理工大学 | Optical readout method utilizing fiber optics bundle to carry out modulation |
| CN102073195A (en) * | 2010-12-14 | 2011-05-25 | 中国科学院长春光学精密机械与物理研究所 | Focusing mechanism for focal plane of eccentric shaft |
| CN103913806A (en) * | 2014-03-28 | 2014-07-09 | 中国科学院上海技术物理研究所 | Infrared imaging detecting system through optical fiber coupling between QWIP-LED and EMCCD |
| CN107664763A (en) * | 2017-08-30 | 2018-02-06 | 中国科学院上海技术物理研究所 | A kind of efficiently integrated multi-beam LDMS receives coupling device |
| CN117539112A (en) * | 2024-01-09 | 2024-02-09 | 之江实验室 | Refined digital imitation body projection device and projection method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5337389A (en) * | 1993-06-01 | 1994-08-09 | The United States Of America As Represented By The Secretary Of The Army | Focal plane array mount for a fiber optic detector system and related method of assembly |
| US6175678B1 (en) * | 1999-05-12 | 2001-01-16 | The United States Of Americas As Represented By The Secretary Of The Navy | Infrared fiber imager |
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2004
- 2004-12-13 CN CNB2004100894528A patent/CN1297831C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417225C (en) * | 2005-10-27 | 2008-09-03 | 中国科学院上海技术物理研究所 | Method of focal plane array image space-time changing based on fibre-optical coupled |
| CN101866031A (en) * | 2010-06-03 | 2010-10-20 | 北京理工大学 | Optical readout method utilizing fiber optics bundle to carry out modulation |
| CN102073195A (en) * | 2010-12-14 | 2011-05-25 | 中国科学院长春光学精密机械与物理研究所 | Focusing mechanism for focal plane of eccentric shaft |
| CN102073195B (en) * | 2010-12-14 | 2012-07-25 | 中国科学院长春光学精密机械与物理研究所 | Focusing mechanism for focal plane of eccentric shaft |
| CN103913806A (en) * | 2014-03-28 | 2014-07-09 | 中国科学院上海技术物理研究所 | Infrared imaging detecting system through optical fiber coupling between QWIP-LED and EMCCD |
| CN107664763A (en) * | 2017-08-30 | 2018-02-06 | 中国科学院上海技术物理研究所 | A kind of efficiently integrated multi-beam LDMS receives coupling device |
| CN107664763B (en) * | 2017-08-30 | 2023-12-26 | 中国科学院上海技术物理研究所 | Receiving coupling device of high-efficiency integrated multi-beam laser ranging system |
| CN117539112A (en) * | 2024-01-09 | 2024-02-09 | 之江实验室 | Refined digital imitation body projection device and projection method |
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