CN106094193B - The automatic focusing micro imaging system that a kind of planetary surface substance detects in place - Google Patents
The automatic focusing micro imaging system that a kind of planetary surface substance detects in place Download PDFInfo
- Publication number
- CN106094193B CN106094193B CN201610607155.0A CN201610607155A CN106094193B CN 106094193 B CN106094193 B CN 106094193B CN 201610607155 A CN201610607155 A CN 201610607155A CN 106094193 B CN106094193 B CN 106094193B
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
- G02B21/365—Control or image processing arrangements for digital or video microscopes
- G02B21/367—Control or image processing arrangements for digital or video microscopes providing an output produced by processing a plurality of individual source images, e.g. image tiling, montage, composite images, depth sectioning, image comparison
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
- G02B21/244—Devices for focusing using image analysis techniques
Abstract
The present invention proposes the automatic focusing micro imaging system that a kind of planetary surface substance detects in place, including lighting unit, micro-imaging unit, image acquisition units, focusing gear unit, host computer unit；Lighting unit is located at same light path with micro-imaging unit, and micro-imaging unit includes micro objective, lens barrel；Focusing gear unit is to bite conjunction transmission device outside gear, and setting direction is vertical with lighting unit, which is converted to the movement of microscope tube by the transmission of gear；With microscope tube in same light path, image acquisition units are connect image acquisition units with focusing gear unit；Host computer unit judges the clarity for collecting image, and control whole system is in quasi- coke-like state.The present invention can differentiate the image of collected sample to be tested into line definition, by being fitted focusing function, be quickly found out focus position, improve the speed and precision of focusing, and the device is designed using blocking, has many advantages, such as that small, function is strong.
Description
Technical field
It is clear using image the invention belongs to optical engineering field more particularly to a kind of microscopic imaging device of automatic focusing
Clear degree evaluation function quickly realizes focus process, obtains sample to be tested clearly micro-image.
Background technology
Deep-space detection field, micro imaging system is as the optics load detected in place, by planetary geological topsoil
Earth, rock sample imaging, according to features such as picture size, texture, colors, can from microcosmic angle come recognize topography and geomorphology, into
And judge soil element composition, mineralogical composition analysis etc..As the U.S. " Opportunity Rover " on carry microscopic imaging apparatus (MI), " phoenix
The light microscope (OM) of phoenix number " Mars landing device carrying, the MAHLI cameras of " curious number " carrying, European Space Agency " ExoMars " number
MicroOmega EO-1 hyperion microscopes of carrying etc. can be imaged collected pedotheque from microcosmic angle, be analyzed
Deng.
Micro-imaging load obtain clear image when, conventional method be usually under different object distances respectively to sample to be tested into
Then picture chooses clear image in collected a series of images, this method the image collected is more, time-consuming longer,
Inefficiency.
Invention content
In order to solve the technical problem in the presence of background technology, the present invention proposes a kind of micro-imaging of automatic focusing
System and device, the device can differentiate the image of collected sample to be tested into line definition, by being fitted focusing function, soon
Speed finds focus position, improves the speed and precision of focusing, and the device is designed using blocking, have the function of it is small,
The advantages that strong, meets the light and small design principle of space flight load.
The present invention technical solution be：The automatic focusing micro-imaging system that a kind of planetary surface substance detects in place
System, it is characterised in that：The system comprises lighting unit, micro-imaging unit, image acquisition units, focusing gear unit, on
Position machine unit；
The lighting unit is located at same light path with micro-imaging unit, and micro-imaging unit includes micro objective, mirror
Cylinder.Focusing gear unit is to bite conjunction transmission device outside gear, and setting direction is vertical with lighting unit, and the unit is by the biography of gear
It is dynamic, it is converted to the movement of microscope tube.
With microscope tube in same light path, image acquisition units are connect image acquisition units with focusing gear unit；
Host computer unit judges the clarity for collecting image, is fitted focusing curve, and sends focusing instruction, and control is whole
A system is in quasi- coke-like state.
Above-mentioned focusing gear unit includes driving wheel, driven wheel, magnetic bead, motor and Hall sensor；Motor driving master
Driving wheel drives driven wheel transmission；Magnetic bead is set on the driven wheel, rising when magnetic bead is used for demarcating gear drive with Hall sensor
Point position；Driven wheel connects microscope tube and image acquisition units.
Above-mentioned image acquisition units are CCD cameras.
The invention has the advantages that：
1) present invention is imaged the imaging unit of light path altogether using illumination so that whole system integrated level higher.
2) wavelength of lighting source is optional, and the light source of different wave length is selected for different samples, with more comprehensively flexible
Analyze sample characteristic.
3) present apparatus is acted on by the calibration of Hall sensor, has effectively eliminated gear drive backhaul difference to positioning
The influence of precision.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is automatic focusing micro imaging system work flow diagram of the present invention；
Specific embodiment
Referring to Fig. 1, the present invention is the automatic focusing micro imaging system device that a kind of planetary surface substance detects in place, whole
A system includes：Lighting unit, microoptic imaging unit, image acquisition units (CCD camera 9), focusing gear unit are (actively
Wheel, driven wheel, magnetic bead, motor, Hall sensor), host computer unit.When the present apparatus carries out micro-imaging to sample, on
Position machine calculates focus position, and send command adapted thereto, control imaging system reaches specified by the differentiation to image definition
Position quickly obtains testee clearly micro-image.
The lighting part and microoptic imaging moiety of the automatic focusing device are total to light path.The light that LED illumination light source 1 is sent out
Line is irradiated to by illuminating spotlight mirror on light splitting piece, is pointed into being observed object sample surfaces, the reflected light of sample passes through
Imaging lens group is imaged in image planes.Focus adjusting mechanism drives 3 band of driving wheel to bite conjunction transmission device outside gear, by stepper motor 2
Dynamic driven wheel 4 is driven, and lens barrel 5 is gradually closer or far from target, that is, changes the mode of object distance, finds focus position.It is driven
Magnetic bead 6 is installed, magnetic bead 6 is used for demarcating start position during gear drive with Hall sensor 7, to eliminate gear drive on wheel 4
Influence of the backhaul difference of mechanism to positioning accuracy.Stepper motor 2 drives camera lens unique step to advance, and often makes a move, and acquires a frame figure
Picture, host computer 8 calculate the location drawing picture clarity, if present image clarity is more than previous frame image, then it is assumed that system is gradually
Close to focus position, when the image definition of continuous four positions declines, then clarity maximum position and each side is taken
Two adjacent positions and corresponding image definition are taken, the fitting of focusing curve is realized, finds out peak position, sends out corresponding finger
It enables, control imaging system is reached at peak position, realizes focussing process.
Specific implementation process is as follows：
Host computer 8 sends focusing instruction, and stepper motor 2 rotates forward, and by gear drive, lens barrel 5 is gradually close
Sample to be tested, when Hall sensor 7 senses 6 magnetic field of magnetic bead for the first time, sensor sends a signal to host computer 8, by this position
Indicate for start of a run of focusing.
At start position, the big step-length driving driving wheel 3 of motor rotates, and acquires image every unique step, host computer 8 differentiates figure
Image sharpness.When continuous 4 clarity decline, that is, think to have passed past focus position point at this time, motor stalls at this time.It is upper
Machine 8 then takes clarity maximum position and each side takes two adjacent positions and corresponding image definition, realizes that focusing is bent
The fitting of line, the peak position of focusing curve are considered focus position.
Motor reversal when Hall sensor 7 senses magnetic field signal again, illustrates to reach start position.Motor rotates forward,
Until driving focus adjusting mechanism is operated to the focus position of fitting, image is acquired.
Claims (2)
1. a kind of automatic focusing micro imaging system that planetary surface substance detects in place, it is characterised in that：The system comprises
Lighting unit, micro-imaging unit, image acquisition units, focusing gear unit, host computer unit；
The lighting unit is located at same light path with micro-imaging unit, and micro-imaging unit includes micro objective, lens barrel；It adjusts
Burnt gear unit is to bite conjunction transmission device outside gear, and setting direction is vertical with lighting unit, the unit by the transmission of gear, turn
It is melted into the movement of microscope tube；
With microscope tube in same light path, image acquisition units are connect image acquisition units with focusing gear unit；
Host computer unit judges the clarity for collecting image, is fitted focusing curve, and sends focusing instruction, controls entire system
System is in quasi- coke-like state；
The focusing gear unit includes driving wheel, driven wheel, magnetic bead, motor and Hall sensor；Motor drives driving wheel
Drive driven wheel transmission；Magnetic bead is set on the driven wheel, and magnetic bead is used for demarcating starting point position during gear drive with Hall sensor
It puts；Driven wheel connects microscope tube and image acquisition units.
2. the automatic focusing micro imaging system that planetary surface substance according to claim 1 detects in place, feature exist
In：Described image collecting unit is CCD camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607155.0A CN106094193B (en) | 2016-07-28 | 2016-07-28 | The automatic focusing micro imaging system that a kind of planetary surface substance detects in place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607155.0A CN106094193B (en) | 2016-07-28 | 2016-07-28 | The automatic focusing micro imaging system that a kind of planetary surface substance detects in place |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106094193A CN106094193A (en) | 2016-11-09 |
| CN106094193B true CN106094193B (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610607155.0A Expired - Fee Related CN106094193B (en) | 2016-07-28 | 2016-07-28 | The automatic focusing micro imaging system that a kind of planetary surface substance detects in place |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113766139B (en) * | 2021-09-29 | 2023-07-18 | 广东朝歌智慧互联科技有限公司 | Focusing device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743719A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Remote in-situ integrated test system for planet surface substances and atmosphere |
| CN205942080U (en) * | 2016-07-28 | 2017-02-08 | 中国科学院西安光学精密机械研究所 | Micro - imaging system of automatic focusing that planet surface material is taken one's place and is surveyed |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7050087B2 (en) * | 2000-12-06 | 2006-05-23 | Bioview Ltd. | Data acquisition and display system and method |
| US6850323B2 (en) * | 2001-02-05 | 2005-02-01 | California Institute Of Technology | Locally enhanced raman spectroscopy with an atomic force microscope |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743719A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Remote in-situ integrated test system for planet surface substances and atmosphere |
| CN205942080U (en) * | 2016-07-28 | 2017-02-08 | 中国科学院西安光学精密机械研究所 | Micro - imaging system of automatic focusing that planet surface material is taken one's place and is surveyed |
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| CN106094193A (en) | 2016-11-09 |
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Granted publication date: 20180703 Termination date: 20190728 |