EP1668394A1 - Mikroskop mit evaneszenter beleuchtung - Google Patents
Mikroskop mit evaneszenter beleuchtungInfo
- Publication number
- EP1668394A1 EP1668394A1 EP04787200A EP04787200A EP1668394A1 EP 1668394 A1 EP1668394 A1 EP 1668394A1 EP 04787200 A EP04787200 A EP 04787200A EP 04787200 A EP04787200 A EP 04787200A EP 1668394 A1 EP1668394 A1 EP 1668394A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light beam
- illuminating light
- microscope
- illuminating
- sample
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/0032—Optical details of illumination, e.g. light-sources, pinholes, beam splitters, slits, fibers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/002—Scanning microscopes
- G02B21/0024—Confocal scanning microscopes (CSOMs) or confocal "macroscopes"; Accessories which are not restricted to use with CSOMs, e.g. sample holders
- G02B21/008—Details of detection or image processing, including general computer control
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/02—Objectives
-
- 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
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
- G02B21/082—Condensers for incident illumination only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/32—Micromanipulators structurally combined with microscopes
Definitions
- the invention relates to a microscope with a first and a second illuminating light beam for illuminating a sample.
- the invention also relates to a method for - in particular microscopic - examination of a sample.
- a microscope with evanescent illumination of a sample is known from US 2002/0097489 A1.
- the microscope contains a white light source, the light of which is coupled via a slit diaphragm through the microscope objective into the specimen slide for evanescent illumination.
- the illuminating light propagates in the slide by total internal reflection, the sample being illuminated only in the area of the evanescent field protruding from the slide.
- Microscopes of this type are known under the term TIRFM (Total Internal Reflection Fluorescent Microscope).
- the z-resolution of TIRF microscopes is extremely good due to the evanescent field that only projects into the sample by approx. 100 nm.
- the lens consists of a first lens a positive refractive power, a second lens with a negative refractive power, the focal length ratio between the two lenses being in the range of - 0.4 and - 0.1 and the total refractive power being greater than zero. Furthermore, the lens contains two positive lenses, whose ratio diameter to the focal length is greater than 0.3 and less than 0.6.
- the objective also includes a negative lens and a converging lens, the negative lens facing the front group and the focal length ratio of the negative lens and the converging lens being between ⁇ 0.5 and ⁇ 2.
- a microscope for TIRM Total Internal Reflection Microscopy
- the microscope has a microscope housing and an objective.
- the illuminating light emanating from an illuminating device can be coupled in via an adapter which can be inserted into the microscope housing.
- US 2004/0001253 A1 is a microscope with an optical lighting system that enables simple switching between evanescent lighting and reflection lighting.
- the lighting system includes a laser light source, the light of which is coupled into an optical fiber.
- a coupling optic is also provided, which focuses the light emerging from the fiber into a rear focal point of the microscope objective.
- the optical fiber can be displaced in a plane perpendicular to the optical axis of the microscope objective.
- a device for coupling light into a microscope is known from DE 10229 935 A1. Laser light is directed onto the specimen in the light field diaphragm plane by an optical fiber coupling designed as a slide. The invention is particularly suitable for the TIRF process.
- a sample is illuminated with a light beam in order to observe the detection light emitted by the sample, as reflection or fluorescent light.
- the focus of an illuminating light beam is moved with the aid of a controllable beam deflection device, generally by tilting two mirrors, in a sample plane, the deflection axes usually being perpendicular to one another, so that one mirror deflects in the x direction and the other in the y direction.
- the mirrors are tilted, for example, with the help of galvanometer control elements.
- the power of the detection light coming from the object is measured depending on the position of the scanning beam.
- the control elements are usually equipped with sensors for determining the current mirror position.
- a confocal scanning microscope generally comprises a light source, focusing optics with which the light from the source is focused on a pinhole - the so-called excitation diaphragm - a beam splitter, a beam deflection device for beam control, microscope optics, a detection diaphragm and the detectors for detecting the detection - or fluorescent light.
- the illuminating light is coupled in via a beam splitter.
- the fluorescent or reflection light coming from the object reaches the beam splitter via the beam deflection device, passes it, and is then focused on the detection diaphragm behind which the detectors are located.
- This detection arrangement is called a descan arrangement. Detection light that does not originate directly from the focus region takes a different light path and does not pass through the detection diaphragm, so that one obtains point information that passes through sequential scanning of the object with the focus of the illuminating light beam leads to a three-dimensional image. A three-dimensional image is usually achieved by taking image data in layers. Arrangements that determine the resolution of a confocal scanning microscope are given, among other things, by the intensity distribution and the spatial extent of the focus of the excitation light beam. An arrangement for increasing the resolving power for fluorescence applications is known from PCT / DE / 95/00124.
- the lateral edge areas of the focus volume of the excitation light beam are illuminated with a light beam of a different wavelength, the so-called stimulation light beam, which is emitted by a second laser, in order to stimulate the sample areas excited by the light of the first laser to return to the basic state. Then only the spontaneously emitted light from the areas not illuminated by the second laser is detected, so that an overall improvement in resolution is achieved.
- STED Stimulated Emission Depletion
- Coherent anti-Stokes Raman scattering (CARS) microscopy is a technique that is becoming increasingly important. A great advantage is that the samples do not have to be labeled with dyes. Living cells can also be examined. Compared to conventional Raman microscopy and the well-known confocal Raman microscopy, one can with CARS microscopy Achieve a higher yield of detection light, better suppress unwanted side effects and separate the detection light from the illuminating light more easily. For conventional confocal Raman spectroscopy, a detection pinhole is required to achieve good axial resolution, as well as a high-resolution spectrometer. CARS, on the other hand, is a non-linear optical process (four-wave mixing process).
- the pump light beam and the Stokes light beam are combined coaxially and focused together on the same sample volume.
- the direction in which the anti-Stokes radiation is emitted results from the phase matching condition for the four-wave mixing process.
- a device is known from US Pat. No. 4,405,237 "Coherent anti-Stokes Raman device", in which two pulsed laser beams which are generated by two lasers and which have different wavelengths in the visible range or in the UV range of the spectrum are used, With a suitable choice of wavelengths, the sample can be excited in such a way that it emits the characteristic Coherent anti-Stokes Raman radiation.
- James WM Chon, Min Gu “Scanning total internal reflection fluorescence microscopy under one- photon and two-photon excitation: Image formation ", Appl. Opt. 43, 1063-1071, 2004 and from Florian Schapper, Jose T.
- This object is achieved by a microscope, which is characterized in that the first and / or the second illuminating light beam illuminates the sample evanescently.
- the further object is achieved by a method for — in particular microscopic — examination of a sample with the following steps: • Generation of a first and a second illuminating light beam • Illuminating the sample with that of the first and the second illuminating light beam, at least the first illuminating light beam illuminating the sample evanescently ,
- the microscope has an objective with an objective pupil, the first and / or the second
- Illumination light beams in the area of the objective pupil has a focus.
- An adjusting means is preferably provided with which the spatial position of the focus is changeable within the plane of the objective pupil.
- the setting means can comprise, for example, a beam deflection device with a plurality of rotating or tilting mirrors or with a gimbal-mounted mirror.
- the setting means can also be designed as an acousto-optical element or contain micromirrors.
- a displaceable optical fiber can also be used to adjust the spatial position of the focus of the first and / or the second illuminating light beam.
- Illuminating light bundle leaves the lens depends on the spatial position of the focus in the lens pupil.
- a CARS examination of a sample is to be carried out.
- the first illuminating light bundle is an excitation light bundle for optically stimulating a first sample area and the second illuminating light bundle is a stimulating light bundle for triggering a stimulated emission or for triggering a further excitation, the stimulated Emission and / or the further excitation takes place in a further sample area at least partially overlapping with the first sample area.
- the excitation light beam and the stimulation light beam both illuminate the sample evanescently, the excitation light beam having a greater depth of penetration than the stimulation light beam.
- the distance of the focus of the excitation light beam in the objective pupil from the optical axis of the objective is chosen to be greater than the distance of the focus of the stimulation light beam in the objective pupil from the optical axis.
- the sample is optically excited in a relatively wide layer adjacent to the cover glass or slide, and by the stimulating light beam in a relatively narrower layer adjacent to the slide or cover glass - overlapping with the first layer - by the relatively deeper penetrating excitation light beam. Layer stimulated, optically excited, so that ultimately only fluorescence photons from the part of the layer illuminated with the excitation light beam that is not spatially superimposed by the stimulation light beam are ultimately detected.
- the sample is evanescently illuminated by the excitation light beam and is optically stimulated by the directly illuminated stimulation light beam.
- the stimulation light beam is preferably manipulated in such a way that the focus of the stimulation light beam is hollow on the inside.
- a hollow focus is, for example, with the help of phase filters, which are arranged in a plane conjugate to the focal plane of the objective (Fourier plane).
- a ⁇ / 2 plate can function as a phase filter, for example, which is over-illuminated by the stimulation light beam, so that only the inner partial region of the stimulation light beam runs through the ⁇ / 2 plate, while the outer ring runs past the ⁇ / 2 plate.
- the fluorescence photons are detected which originate from the portion of the sample which is evanescently illuminated by the excitation light beam and which lies inside the hollow focus of the stimulation light beam.
- the sample can be scanned with a very high spatial resolution.
- the spatial resolution is due to the The penetration depth of the evanescently illuminated excitation light beam is given (for example 100 nm), while in the axial directions the resolution is determined by the dimensions of the hollow focus.
- the focus of the stimulation light beam is preferably guided with a beam deflection device, preferably in a meandering shape, above or through the sample.
- the stimulation light beam further excites the already excited sample regions in a third excitation state.
- This variant is also suitable for achieving a high spatial resolution.
- the first illuminating light beam and / or the second illuminating light beam is preferably pulsed in time.
- at least one pulsed light source such as a modem-coupled pulse laser (e.g. titanium sapphire laser)
- a modem-coupled pulse laser e.g. titanium sapphire laser
- the use of pulsed semiconductor lasers or regenerative amplifiers is also possible, for example.
- Illumination light beams are pulsed in time, the time interval between the pulses of the first illumination light beam and the pulses of the second illumination light beam being adjustable.
- two light sources can be synchronized with one another, the time interval between the pulses being adjustable by means of adjustable delay lines.
- the light of the first illuminating light beam and the light of the second illuminating light beam can originate from a single light source which emits a primary light beam to be split, it being possible for a change in wavelength (OPO; microstructured fiber; frequency multiplication) or.
- OPO microstructured fiber
- frequency multiplication To be provided in the split light branches there is a change in performance (e.g. amplifier or attenuator).
- the microscope according to the invention preferably has at least one Multi-line light source and / or at least one broadband light source.
- the wavelengths or are preferably the wavelength of the first illuminating light beam and / or the second
- Illumination light beam adjustable It is possible according to the invention that the first illuminating light beam and also the second illuminating light beam can contain light of one or more wavelengths, the wavelengths of the first illuminating light beam and the second
- Illumination light beam adjustable it is advantageous if the opening angle of the illuminating light beam bundle converging to form a focus lying in the objective pupil can be adjusted.
- the size of the surface that is illuminated evanescently changes. If one selects the area of the area evanescently illuminated by the stimulation light beam so that it is smaller than the area illuminated by the evanescent excitation illuminating light beam, one can directly compare the fluorescence properties of sample layers in the immediate vicinity of the slide surface to the fluorescence properties of sample layers in lower layers receive.
- the sample is illuminated with an evanescent excitation illumination with a relatively high penetration depth.
- stimulation light beam which has a small penetration depth (larger entry angle into the slide)
- a fluorescence is stimulated directly on the slide.
- the fluorescence image is recorded later (time-gated CCD), so that only fluorescence photons from deeper sample layers are detected.
- the setting of the respective depths can even be adjusted by changing the radial positions of the two Illumination light focus in the lens pupil can be varied.
- TIRF the illuminating light intensity in the sample decreases exponentially with the depth of penetration.
- the STED effect is all the more effective directly on the slide surface, so that, for example, sample layers from a depth of 100 nm can be measured.
- Bandpass filters and / or edge filters are preferably arranged in front of the detector (for example a multiband detector), which can be configured, for example, as a camera, and are matched to the respective emission focal length of the fluorescence signal.
- A can be used for color selection.
- dispersive element can be provided that generates a spectral splitting from which the wavelength components to be detected are masked out.
- the detector can also be designed as a color detector, for example as a color camera. It is also possible for a dispersive element to split the detection light over several detectors in order to achieve spectral detection.
- the microscope comprises a scanning microscope; especially a confocal scanning microscope.
- Fig. 1 An inventive microscope and
- Fig. 2 shows a detailed view of a microscope according to the invention
- the first illuminating light beam arrives at a first beam deflection device 5, which contains a gimbal-mounted rotating mirror 7, and is guided by this beam deflection device to a first optics 9, a second optical system 11 and a third optical system 13 and guided by a beam splitter 15, which is designed as a dichroic beam splitter 17, to the microscope objective 19.
- the microscope objective 19 has a rear focal plane (objective pupil plane 21).
- the first illuminating light beam 3 has a focus 23 shown as a point in the objective pupil plane 21.
- the illuminating light beam 3 is coupled into a specimen slide 27 for the evanescent illumination of the sample 25.
- An immersion means 29 is located between the specimen slide and the objective 19.
- the microscope has a second light source 31, which emits a second illuminating light beam 33.
- the second illuminating light beam 33 reaches the first optics 9, the second optics 11 and the third optics 13 via a second beam deflection device 35, which contains a second gimbal-mounted rotating mirror 37, and is directed by the beam splitter 15 to the microscope objective 19.
- the second illuminating light beam 33 has a focus 39 in the objective pupil plane.
- the second illuminating light beam 33 is also coupled into the specimen slide 27 for evanescent sample illumination.
- the first illuminating light beam leaves the microscope objective 19 at an angle ⁇ to the optical axis 41 of the objective 19, while the second illuminating light beam 33 leaves the objective 19 at an angle ⁇ .
- the angle ⁇ can be adjusted by changing the distance between the first focus 23, the first illuminating light beam 3 and the optical axis 41 of the objective 19.
- the angle ⁇ can be adjusted by changing the distance of the second focus 39 from the optical axis 41.
- the position of the first focus 23 and the second focus 39 is set with the aid of the first beam deflection device 5 or with the aid of the second beam deflection device 35, which are preferably each arranged in a plane corresponding to the objective pupil plane 21.
- the first beam deflection device 5 can be used with the aid of the first beam deflection device 5 or
- the respective penetration depth of the first illuminating light beam 3 and the second illuminating light beam 33 can be set with the aid of the second beam deflection device 35.
- the first illuminating light beam 3 is an excitation light beam 43, while the second illuminating light beam 33 is a stimulating beam 45.
- the excitation light beam 43 excites a first layered sample area of the sample 25.
- the stimulation light beam 45 has light of a wavelength that is suitable for triggering a stimulated emission of excited sample molecules.
- the penetration depth of the evanescent stimulation illumination light is less than the penetration depth of the evanescent stimulation illumination light.
- the first light source 1 is designed as a pulsed titanium sapphire laser 47.
- the second light source 31 is also pulsed and contains a titanium sapphire laser, not shown, which feeds an OPO (optical parametric oscillator), not shown.
- the first light source 1 and the second light source 31 are synchronized with one another in such a way that a sample excitation takes place first with a pulse of the excitation light beam 3 and then a stimulated emission is triggered with the light of the stimulation light beam 31 in a sample layer overlapping with the excitation layer.
- the detector 51 which is designed as a CCD camera 53, detects the fluorescence photons that come from the excitation area of the excitation light beam 3 that is not acted upon by the light from the stimulation light beam 31.
- the detection light 55 originating from this area passes through the microscope objective 19 to the beam splitter 15, passes it, and then hits the CCD camera 53.
- FIG. 2 shows a detailed view of a microscope according to the invention for carrying out the method according to the invention.
- Illumination light beam 3 which is an excitation light beam 43, is focused to a first focus 23. After going through the Microscope objective 19 (indicated by dashed lines), the excitation light beam leaves the objective as a parallel beam and is coupled into a slide 27 for evanescent sample illumination.
- a second illuminating light beam 33 which is a stimulating light beam 45, is focused to a second second 39 lying in the objective pupil plane 21. After passing through the objective 19 (indicated by dashed lines), the stimulation light beam 45 leaves as a parallel beam.
- the excitation light beam 43 leaves the lens 19 at a larger angle to the optical axis of the lens than the stimulation light beam 45; accordingly, the depth of penetration of the light of the excitation light bundle 43 into the sample 25 is greater than the penetration depth of the light of the stimulation light bundle 45 of the stimulating light beam 45 has an aperture angle ⁇ 2 that is smaller than, and consequently the diameter of the lens 19 exits
- Excitation light beam bundle larger than the diameter of the stimulation light beam bundle 45 leaving the objective 19. Accordingly, the axial area of the sample 25 evanescently illuminated by the excitation light beam bundle 43 is larger than the sample area evanescently illuminated by the stimulation light beam bundle 45. With this arrangement it is possible to make comparisons of the fluorescence properties of sample layers in the immediate vicinity of the specimen slide 27 and layers located deeper.
- the first sample region 57 which is evanescently illuminated by the excitation light beam 43, is optically excited by the light of the excitation light beam 43 (shown with hatching).
- the second sample area 59 evanescent from the stimulation light beam 45 is smaller than the first sample area 57 and at least partially overlaps it.
- a stimulated emission is triggered in this second sample area 59 and only then is the spontaneously emitted photons detected with the (not shown) (gated) detector.
- the detected photons essentially originate from that part of the first sample area 57 which does not overlap with the second sample area 59.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Engineering & Computer Science (AREA)
- Microscoopes, Condenser (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10344410A DE10344410A1 (de) | 2003-09-25 | 2003-09-25 | Rastermikroskop mit evaneszenter Beleuchtung |
DE102004044310 | 2004-09-10 | ||
PCT/EP2004/052293 WO2005029149A1 (de) | 2003-09-25 | 2004-09-23 | Mikroskop mit evaneszenter beleuchtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1668394A1 true EP1668394A1 (de) | 2006-06-14 |
Family
ID=34379080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04787200A Ceased EP1668394A1 (de) | 2003-09-25 | 2004-09-23 | Mikroskop mit evaneszenter beleuchtung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7474462B2 (de) |
EP (1) | EP1668394A1 (de) |
WO (1) | WO2005029149A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2005031427A1 (de) * | 2003-09-25 | 2005-04-07 | Leica Microsystems Cms Gmbh | Verfahren zur probenuntersuchung und mikroskop mit evaneszenter probenbeleuchtung |
DE102005037818A1 (de) * | 2005-08-08 | 2007-02-15 | Leica Microsystems Cms Gmbh | Mikroskop |
WO2007034796A1 (ja) * | 2005-09-26 | 2007-03-29 | National University Corporation Hamamatsu University School Of Medicine | 複数の観察手法を用いた顕微鏡細胞観察・検査システム |
DE102006033306A1 (de) * | 2006-07-17 | 2008-01-31 | Leica Microsystems Cms Gmbh | Tirf Mikroskop |
DE102006046369A1 (de) * | 2006-09-29 | 2008-04-03 | Carl Zeiss Microimaging Gmbh | Auflösungsgesteigerte Lumineszenzmikroskopie |
DE102007004346B4 (de) * | 2007-01-29 | 2021-02-11 | Syntegon Technology Gmbh | Vorrichtung zur optischen Charakterisierung |
US9413130B2 (en) | 2012-12-12 | 2016-08-09 | Cvi Laser, Llc | Optical systems |
US7903706B2 (en) * | 2008-04-04 | 2011-03-08 | O'shaughnessy John | Compact, thermally stable multi-laser engine |
US10114213B2 (en) | 2008-04-04 | 2018-10-30 | Cvi Laser, Llc | Laser systems and optical devices for manipulating laser beams |
US8975572B2 (en) | 2008-04-04 | 2015-03-10 | Cvi Laser, Llc | Compact, thermally stable fiber-optic array mountable to flow cell |
US8120772B2 (en) * | 2008-11-03 | 2012-02-21 | The United States of America as represented by the Secretary of Commerce, the National Institute of Standards and Technology | Method for NRB-free nonlinear vibrational spectroscopy and miscroscopy |
DE102008059579A1 (de) * | 2008-11-28 | 2010-07-15 | Leica Microsystems Cms Gmbh | Optisches Auswertungsverfahren mittels Laserpulsen und Einrichtung hierzu |
DE102009029831A1 (de) * | 2009-06-17 | 2011-01-13 | W.O.M. World Of Medicine Ag | Vorrichtung und Verfahren für die Mehr-Photonen-Fluoreszenzmikroskopie zur Gewinnung von Informationen aus biologischem Gewebe |
EP2720075B1 (de) | 2012-10-12 | 2017-11-29 | Spectral Applied Research Inc. | Interne Totalreflexionsfluoreszenzmikroskopie (TIRF) über mehrere Wellenlängen gleichzeitig |
ITTO20130229A1 (it) * | 2013-03-22 | 2014-09-23 | Fond Istituto Italiano Di Tecnologia | Microscopia a deplezione mediante emissione stimolata (sted) ad accesso casuale |
JP6511041B2 (ja) * | 2014-04-24 | 2019-05-08 | オリンパス株式会社 | 顕微鏡および顕微鏡観察方法 |
WO2017046863A1 (ja) | 2015-09-15 | 2017-03-23 | オリンパス株式会社 | 顕微鏡および顕微鏡観察方法 |
KR101766064B1 (ko) * | 2015-11-30 | 2017-08-08 | 연세대학교 산학협력단 | 내부 전반사 형광 현미경 |
US11305482B2 (en) * | 2016-07-15 | 2022-04-19 | Purdue Research Foundation | Continuous and scalable 3D nanoprinting |
US11378808B2 (en) | 2018-07-18 | 2022-07-05 | Idex Health & Science Llc | Laser systems and optical devices for laser beam shaping |
CN111624756A (zh) * | 2020-06-28 | 2020-09-04 | 中国海洋大学 | 一种景深扩展显微成像三维重建装置与方法 |
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JP4128387B2 (ja) * | 2002-04-15 | 2008-07-30 | オリンパス株式会社 | 顕微鏡装置 |
DE10217098B4 (de) | 2002-04-17 | 2004-04-15 | Carl Zeiss Jena Gmbh | Auflicht-Beleuchtungsanordnung für ein Mikroskop |
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2004
- 2004-09-23 EP EP04787200A patent/EP1668394A1/de not_active Ceased
- 2004-09-23 WO PCT/EP2004/052293 patent/WO2005029149A1/de active Application Filing
-
2006
- 2006-05-01 US US11/415,254 patent/US7474462B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2005029149A1 * |
Also Published As
Publication number | Publication date |
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US7474462B2 (en) | 2009-01-06 |
WO2005029149A1 (de) | 2005-03-31 |
US20070159690A1 (en) | 2007-07-12 |
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