CN202307786U - Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens - Google Patents
Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens Download PDFInfo
- Publication number
- CN202307786U CN202307786U CN2011203639979U CN201120363997U CN202307786U CN 202307786 U CN202307786 U CN 202307786U CN 2011203639979 U CN2011203639979 U CN 2011203639979U CN 201120363997 U CN201120363997 U CN 201120363997U CN 202307786 U CN202307786 U CN 202307786U
- Authority
- CN
- China
- Prior art keywords
- transmission electron
- electron microscope
- phosphor screen
- visual field
- digital imaging
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Microscoopes, Condenser (AREA)
Abstract
The utility model provides a digital imaging device mounted at the bottom of a transmission electron microscope and coupled with a camera lens, which is mainly characterized in that: an observation and transmission electron fluorescent screen (20) is mounted on a fixed bracket of a previous transmission electron microscope main fluorescent screen (11), so as to replace the previous main fluorescent screen (11) and a transmission electron fluorescent screen (15) based on the prior art. The observation and transmission electron fluorescent screen (20) can be used for converting a transmission electron image into an optical image, so that on one hand, an observer can observe through a lead glass observation window (12); and meanwhile, the digital imaging device can be supplied to a digital camera (17) to shoot. According to the design, the device provided by the utility model has an effective imaging area and a visual field which are close to or even more than the effective imaging area and visual field (90 mm*60 mm) of a film of a common bottom inserting type camera of the transmission electron microscope, and the device is particularly suitable for fields of life science, medical science and the like which need to utilize the transmission electron microscope with a large visual field to image.
Description
Technical field
The utility model relates to transmission electron microscope, particularly relate to a kind ofly install in transmission electron microscope bottom, the camera lens coupling, with the device of digital form record transmitted electron image and diffraction pattern.
Background technology
The transmission electron beam (10) of reflection sample message projects on the main phosphor screen (11), converts optical imagery to, and the operator observes the optical imagery of this sample through lead glass window (12).When main phosphor screen (11) lifts, deliver to exposure window (13) to the Electronic Speculum film, just can directly write down the electronic image of sample with film; When photographic film not, transmission electron beam (10) just projects the bottom of projection chamber (14).
People adopt the transmitted electron image and the diffraction pattern information of Electronic Speculum Film Recording sample traditionally, from last century the nineties begin, the transmission electron microscope digital imaging technology grows up gradually.At present, on the market, companies such as external Gatan, TVIPS, OSIS are topmost transmission electron microscope digital imagery goods producers, have formed monopolization at home; Domesticly go back the transmission electron microscope digital imaging apparatus that neither one unit provides typing.
As everyone knows, transmission electron microscope digital imagery product obtains application more and more widely, but is weighing on the most important parameter of the imaging device-effective imaging area and the visual field, and the transmission electron microscope digital imaging apparatus is compared with film and is in obvious inferior position always.Use the widest transmission electron microscope film and be a kind of end and insert specification that the formula camera the uses film as 90mm * 60mm, its imaging area is much larger than effective imaging area of most transmission electron microscope digital imaging apparatus.
" real-time imaging device of transmission electron microscope " (CN101788506A; The application for a patent for invention specification) a kind of transmission electron microscope digital imaging apparatus is disclosed; Be characterized in: transmitted electron phosphor screen (15) is fixed on the below of projection chamber bottom, exposure window (13), and its center overlaps with the center of transmission electron beam (10); Digital camera (17) is positioned at outside the projection chamber, over against transmitted electron phosphor screen (15); Between transmitted electron phosphor screen (15) and digital camera (17), also has lead glass window (16); Computer (19) is through the exposure parameter of USB2.0 cable (18) control digital camera (17).The transmitted electron phosphor screen (15) of an embodiment of this technical scheme is the circle of diameter 70mm, and area reaches 3800mm
2, but, only utilized the interior spreading square region of circular fluorescent screen because the imageing sensor of digital camera is a rectangle, be about 58mm * 38.5mm, so its effective imaging area is much smaller than the 90mm * 60mm of film.
" transmission electron microscope imaging mode summary " (medical equipment information; 2007; 22 (9): the Gatan that 43-46) introduces and effective imaging area of TVIPS company dress type of general end transmission electron microscope digital imagery product are all less than 30mm * 30mm; They at that time the product area of most significant end be respectively 61.2mm * 61.2mm and 61.4mm * 61.4mm, also have gap with the 90mm * 60mm of all purpose film.Though the Tem-Cam-F816 (http://www.tvips.com/pdfs/TEMCAM-F816.pdf) of TVIPS company release has recently reached the imaging area of 128mm * 128mm; But the imageing sensor of its topmost part-overlarge area and the price of optical fiber component are very expensive, have only the top research institution of only a few just possibly buy this product.The common transmission electron microscope user that quantity is maximum expects always on middle-end and popular transmission electron microscope digital imagery product, to realize more large tracts of land and more wide-field digital imagery that this also is transmission electron microscope digital imaging technology research staff's pursuit.
Summary of the invention
For develop economy and have near in addition surpass the effective imaging area of general transmission electron microscope film and the visual field (the transmission electron microscope digital imagery product of 90mm * 60mm), the utility model propose dress camera lens of a kind of end simple in structure transmission electron microscope digital imaging apparatus that is coupled.
The utility model solves the technical scheme that its technical problem adopted and comprises: 1. substitute the main phosphor screen (11) of transmission electron microscope and the transmitted electron phosphor screen (15) in the prior art (CN101788506A) with observing the transmitted electron phosphor screen (20) of holding concurrently; Its effect be conspicuous-promptly install under the condition of identical digital camera (17) in same spatial location, effectively the imaging area and the visual field obviously increase; 2. cancel the lead glass window (16) among the CN101788506A; Make the digital camera (17) and the transmitted electron phosphor screen (20) of observe the holding concurrently vacuum chamber that exists together; Simplified design and made, avoided lead glass window (16) to the attenuation by absorption of optical imagery with because the interference that scattering and interfacial refraction, reflection cause to image; 3. adopt vacuum socket (21) to realize that vacuum insulation is electrically connected with relevant; 4. the described observation transmitted electron phosphor screen (20) of holding concurrently is a kind of electronics phosphor screen that comprises transparent substrates layer (30), conductive, transparent rete (31) and phosphor powder layer (32) three-decker.
Combine the outstanding advantage of accompanying drawing 4 explanation the utility model-realize approaching or above the effective imaging area of general transmission electron microscope film and the visual field (90mm * 60mm) now with commonplace components and simple structure.Used transmission electron microscope (41) is Philips EM208S; Digital camera is used the EOS40D of Canon; Its imageing sensor (42) is wide to be 22.2mm; Used digital camera and the installation site thereof of the utility model and prior art (CN101788506A) is constant, observes and holds concurrently between transmitted electron phosphor screen (20) or main phosphor screen (11) and exposure window (13) or the Electronic Speculum film (40) at a distance of 55mm, 22mm apart between exposure window (13) and the transmitted electron phosphor screen (15); Effectively width means is used in the imaging area and the visual field in the drawings, highly obtains (imageing sensor the ratio of width to height is 3: 2) with width divided by 1.50; If the multiplication factor of Electronic Speculum film (40) is 1, the multiplication factor of main phosphor screen (11) is 0.888, and the multiplication factor of transmitted electron phosphor screen (15) is 1.0256 (MS1MS2: AF1AF2: A1A2=0.888: 1: 1.0256); Related distance, width etc. are to draw by equal proportion in kind among Fig. 4; The visual field of the utility model and prior art all be converted into be equivalent to Electronic Speculum film (40) the visual field so that comparison.
Among Fig. 4, prior art (CN101788506A) is 58mm with part imaging between the A1A2 of transmitted electron phosphor screen (15), and the visual field of the visual field and Electronic Speculum film (40) AF1AF2 section is suitable, is 54.7mm; So effective imaging area of prior art is 58mm * 38.5mm, the visual field that is equal to Electronic Speculum film (40) is 54.7mm * 36.5mm.The utility model partly forms images with observing transmitted electron phosphor screen (20) B1B2 that holds concurrently, and is 88.5mm, and the visual field of the visual field and Electronic Speculum film (40) BF1BF2 section is suitable, is 99mm.Therefore, effective imaging area of the utility model is 88.5mm * 59mm, near the 90mm * 60mm of general transmission electron microscope film, much larger than the 58mm * 38.5mm of prior art; The visual field that the utility model is equal to the transmission electron microscope film is 99mm * 66mm, greater than the 90mm * 60mm of general transmission electron microscope film, more greater than the 54.7mm * 36.5mm of prior art.
Description of drawings
Fig. 1 is based on a kind of transmission electron microscope imaging device structure chart of prior art;
Fig. 2 is based on a kind of transmission electron microscope imaging device structure chart of the utility model;
Fig. 3 observes the transmitted electron fluorescence structure figure that holds concurrently;
Fig. 4 is effective imaging area and the visual field of an embodiment of the utility model and based on the effective imaging area of a kind of transmission electron microscope imaging device of prior art and the comparison sketch map in the visual field.
Among the figure: 10. transmission electron beam, 11. main phosphor screens, 12. lead glass windows, 13. exposure windows, 14. projection chambers; 15. the transmitted electron phosphor screen, 16. lead glass windows, 17. digital cameras, 18.USB2.0 cable, 19. computers; 20. observe the transmitted electron phosphor screen of holding concurrently, 21. vacuum sockets, 22. stainless steel casings, 23. power supply and communication cables, 30. transparent substrates layers; 31. the conductive, transparent rete, 32. phosphor powder layers, 40. Electronic Speculum films, 41. transmission electron microscopes, 42. imageing sensors.
Embodiment
The preparation of transmitted electron phosphor screen (20) of observe holding concurrently: optical glass or the transparency silica glass disk of getting a diameter 130mm, thick 3mm are as transparent substrates layer (30); Plate the thick conductive, transparent rete (31) of one deck 15 μ m in its one side with magnetron sputtering or direct current evaporation coating method (consigned processing); Method (Liu Wenbo with the introduction of Liu Wen ripple; Li Hongye. the fluoroscopic a kind of manufacture method of Electronic Speculum. the laboratory science; 2004,12 (6): 47-48) go up making layer of fluorescent powder layer (32) at conductive, transparent rete (31).
Referring to Fig. 1 and Fig. 2, to projection chamber (14) venting of transmission electron microscope Philips EM208S, remove lead glass window (12), pull down main phosphor screen (11); Be fixed on the suitable metal framework (not drawing among the figure) observing the transmitted electron phosphor screen (20) of holding concurrently, be fixed on metal framework on the mounting bracket (not drawing among the figure) of main phosphor screen (11) again.Digital camera (17) is installed in the stainless steel casing (22); Stainless steel casing (22) is fixed on the transmission electron microscope flange in the bottom, and sealing ring (not drawing among the figure) is arranged therebetween; Stainless steel casing has perforate on (22), and so that vacuum socket (21) to be installed, this socket passes through the electrical connection path that stainless steel casing (22) provides isolated vacuum for power supply and communication cable (23); Digital camera (17) obtains feed through power supply and communication cable (23) from the external world, accept a control and an image of taking of computer (19) and pass back to computer (19).
Contents such as the title of equipment that this specification is given an example or device or model and physical dimension are for the utility model and advantage thereof more specifically, intuitively, clearly are described, rather than to the qualification of the utility model claim scope.
Claims (3)
1. dress camera lens coupling transmission electron microscope digital imaging apparatus at the bottom of a kind comprises the electronics phosphor screen, it is characterized in that: described electronics phosphor screen is a kind of observation transmitted electron phosphor screen (20) of holding concurrently.
2. a kind of end dress camera lens coupling transmission electron microscope digital imaging apparatus according to claim 1; It is characterized in that: the described observation transmitted electron phosphor screen (20) of holding concurrently is installed on the fixed support of transmission electron microscope master phosphor screen (11), replaces original main phosphor screen (11).
3. a kind of end dress camera lens coupling transmission electron microscope digital imaging apparatus according to claim 1 is characterized in that: the described observation transmitted electron phosphor screen (20) of holding concurrently is a kind of electronics phosphor screen that comprises transparent substrates layer (30), conductive, transparent rete (31) and phosphor powder layer (32) three-decker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203639979U CN202307786U (en) | 2011-09-22 | 2011-09-22 | Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203639979U CN202307786U (en) | 2011-09-22 | 2011-09-22 | Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307786U true CN202307786U (en) | 2012-07-04 |
Family
ID=46376629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203639979U Expired - Fee Related CN202307786U (en) | 2011-09-22 | 2011-09-22 | Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446683A (en) * | 2011-09-22 | 2012-05-09 | 中国人民解放军南京军区福州总医院 | Bottom-mounted lens coupled transmission electron microscope digital imaging device |
-
2011
- 2011-09-22 CN CN2011203639979U patent/CN202307786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446683A (en) * | 2011-09-22 | 2012-05-09 | 中国人民解放军南京军区福州总医院 | Bottom-mounted lens coupled transmission electron microscope digital imaging device |
| CN102446683B (en) * | 2011-09-22 | 2014-06-18 | 中国人民解放军南京军区福州总医院 | Bottom-mounted lens coupled transmission electron microscope digital imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102713720B (en) | Microscopic imaging device and micro imaging method | |
| CN105144337B (en) | Charged particle beam apparatus, sample observation method, sample bench, observing system and luminous component | |
| CN101341422B (en) | Device and system for radiation detection | |
| JP6092318B2 (en) | Radiation detection panel manufacturing apparatus and radiation detection panel manufacturing method | |
| JP2011017683A (en) | Radiation image detector, and manufacturing method of the same | |
| CN102569317A (en) | Radiographic imaging apparatus | |
| CN102918418A (en) | Radiological imaging device | |
| CN107765418A (en) | The medical electronic endoscope of built-in light-source | |
| EP0853813A1 (en) | Resolution-enhancement device for an optically-coupled image sensor for an electron microscope | |
| US7745786B2 (en) | Method and apparatus allowing simultaneous direct observation and electronic capture of scintillation images in an electron microscope | |
| CN102446683B (en) | Bottom-mounted lens coupled transmission electron microscope digital imaging device | |
| CN202307786U (en) | Digital imaging device mounted at bottom of transmission electron microscope and coupled with camera lens | |
| CN103805161B (en) | A kind of preparation method of secondary electron detector scintillator | |
| US10254527B2 (en) | Observation method using microscopic imaging device | |
| Soukhanovskii et al. | Spectroscopic diagnostics for liquid lithium divertor studies on National Spherical Torus Experiment | |
| CN202749334U (en) | Side-installed lens-coupling transmission electron microscope digital imaging apparatus | |
| CN203134752U (en) | Side-installed fiber coupling TEM digital imaging apparatus | |
| CN102637570A (en) | Digital imaging device for transmission electron microscope with coupled side-mounted lens | |
| JP2009236704A (en) | Radiation detection device | |
| CN104257341B (en) | It is a kind of to be used for the endoscope optical system of infrared and visible monitoring simultaneously | |
| JP2012185254A (en) | Optical element, optical module and imaging apparatus, and optical multilayer film | |
| JP2021018988A (en) | Method of manufacturing charged particle detector | |
| den Engelsen et al. | New developments in Cathodoluminescence spectroscopy for the study of luminescent materials | |
| CN103151232B (en) | A kind of side dress coupling fiber transmission electron microscope digital imaging method and device thereof | |
| CN203339106U (en) | A bottom-mounted optical fiber coupling transmission electron microscope digital imaging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |