JPH05501458A - 共焦点顕微鏡用レーザ - Google Patents
共焦点顕微鏡用レーザInfo
- Publication number
- JPH05501458A JPH05501458A JP3505950A JP50595091A JPH05501458A JP H05501458 A JPH05501458 A JP H05501458A JP 3505950 A JP3505950 A JP 3505950A JP 50595091 A JP50595091 A JP 50595091A JP H05501458 A JPH05501458 A JP H05501458A
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- JP
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- 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.)
- Granted
Links
- 238000004624 confocal microscopy Methods 0.000 title claims description 15
- 239000003086 colorant Substances 0.000 claims description 64
- 230000005284 excitation Effects 0.000 claims description 47
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims description 28
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- WZSUOQDIYKMPMT-UHFFFAOYSA-N argon krypton Chemical compound [Ar].[Kr] WZSUOQDIYKMPMT-UHFFFAOYSA-N 0.000 claims description 5
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000498 pewter Inorganic materials 0.000 claims 1
- 239000010957 pewter Substances 0.000 claims 1
- 230000004044 response Effects 0.000 description 38
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 23
- 230000003595 spectral effect Effects 0.000 description 17
- 229910052786 argon Inorganic materials 0.000 description 15
- 238000000295 emission spectrum Methods 0.000 description 15
- 238000000862 absorption spectrum Methods 0.000 description 10
- -1 argon ion Chemical class 0.000 description 10
- 229910052743 krypton Inorganic materials 0.000 description 10
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 10
- 238000010226 confocal imaging Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- MPLHNVLQVRSVEE-UHFFFAOYSA-N texas red Chemical compound [O-]S(=O)(=O)C1=CC(S(Cl)(=O)=O)=CC=C1C(C1=CC=2CCCN3CCCC(C=23)=C1O1)=C2C1=C(CCC1)C3=[N+]1CCCC3=C2 MPLHNVLQVRSVEE-UHFFFAOYSA-N 0.000 description 8
- 238000005286 illumination Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000003068 molecular probe Substances 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 3
- OBYNJKLOYWCXEP-UHFFFAOYSA-N 2-[3-(dimethylamino)-6-dimethylazaniumylidenexanthen-9-yl]-4-isothiocyanatobenzoate Chemical compound C=12C=CC(=[N+](C)C)C=C2OC2=CC(N(C)C)=CC=C2C=1C1=CC(N=C=S)=CC=C1C([O-])=O OBYNJKLOYWCXEP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 239000012491 analyte Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- MHMNJMPURVTYEJ-UHFFFAOYSA-N fluorescein-5-isothiocyanate Chemical compound O1C(=O)C2=CC(N=C=S)=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 MHMNJMPURVTYEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XJENLUNLXRJLEZ-UHFFFAOYSA-M lissamine rhodamine Chemical compound [Na+].C=12C=C(C)C(N(CC)CC)=CC2=[O+]C=2C=C(N(CC)CC)C(C)=CC=2C=1C1=CC=C(S([O-])(=O)=O)C=C1S([O-])(=O)=O XJENLUNLXRJLEZ-UHFFFAOYSA-M 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000007793 ph indicator Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- OZLGRUXZXMRXGP-UHFFFAOYSA-N Fluo-3 Chemical compound CC1=CC=C(N(CC(O)=O)CC(O)=O)C(OCCOC=2C(=CC=C(C=2)C2=C3C=C(Cl)C(=O)C=C3OC3=CC(O)=C(Cl)C=C32)N(CC(O)=O)CC(O)=O)=C1 OZLGRUXZXMRXGP-UHFFFAOYSA-N 0.000 description 1
- 235000010575 Pueraria lobata Nutrition 0.000 description 1
- 241000219781 Pueraria montana var. lobata Species 0.000 description 1
- APERIXFHHNDFQV-UHFFFAOYSA-N [2-[2-[2-[bis(carboxymethyl)amino]-5-methylphenoxy]ethoxy]-4-[3,6-bis(dimethylamino)xanthen-9-ylidene]cyclohexa-2,5-dien-1-ylidene]-bis(carboxymethyl)azanium;chloride Chemical compound [Cl-].C12=CC=C(N(C)C)C=C2OC2=CC(N(C)C)=CC=C2C1=C(C=1)C=CC(=[N+](CC(O)=O)CC(O)=O)C=1OCCOC1=CC(C)=CC=C1N(CC(O)=O)CC(O)=O APERIXFHHNDFQV-UHFFFAOYSA-N 0.000 description 1
- FOPZHFTZETZNBN-UHFFFAOYSA-N [I].[Ar] Chemical compound [I].[Ar] FOPZHFTZETZNBN-UHFFFAOYSA-N 0.000 description 1
- 210000000436 anus Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- PZTQVMXMKVTIRC-UHFFFAOYSA-L chembl2028348 Chemical compound [Ca+2].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 PZTQVMXMKVTIRC-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- PBTPREHATAFBEN-UHFFFAOYSA-N dipyrromethane Chemical compound C=1C=CNC=1CC1=CC=CN1 PBTPREHATAFBEN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- ZMMJGEGLRURXTF-UHFFFAOYSA-N ethidium bromide Chemical compound [Br-].C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CC)=C1C1=CC=CC=C1 ZMMJGEGLRURXTF-UHFFFAOYSA-N 0.000 description 1
- 229960005542 ethidium bromide Drugs 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000799 fluorescence microscopy Methods 0.000 description 1
- 229940048921 humira Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- DLBFLQKQABVKGT-UHFFFAOYSA-L lucifer yellow dye Chemical compound [Li+].[Li+].[O-]S(=O)(=O)C1=CC(C(N(C(=O)NN)C2=O)=O)=C3C2=CC(S([O-])(=O)=O)=CC3=C1N DLBFLQKQABVKGT-UHFFFAOYSA-L 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- AFAIELJLZYUNPW-UHFFFAOYSA-N pararosaniline free base Chemical compound C1=CC(N)=CC=C1C(C=1C=CC(N)=CC=1)=C1C=CC(=N)C=C1 AFAIELJLZYUNPW-UHFFFAOYSA-N 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XJMOSONTPMZWPB-UHFFFAOYSA-M propidium iodide Chemical compound [I-].[I-].C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CCC[N+](C)(CC)CC)=C1C1=CC=CC=C1 XJMOSONTPMZWPB-UHFFFAOYSA-M 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- G02B21/0052—Optical details of the image generation
- G02B21/0076—Optical details of the image generation arrangements using fluorescence or luminescence
-
- 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
- G02B21/0052—Optical details of the image generation
- G02B21/0064—Optical details of the image generation multi-spectral or wavelength-selective arrangements, e.g. wavelength fan-out, chromatic profiling
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microscoopes, Condenser (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
Claims (16)
- 1.特定の周波数の光によって励起された時に蛍光を発する複数の着色剤によっ て着色された検体を観察する際、光学顕微鏡と共に使用される多色共焦点顕微鏡 システムであって、 単一のレーザ光源から、各々が前記着色剤のうちの1つの励起周波数に対応する 多数の励起線、を含んだ多線入射レーザ光を発生するレーザ手段と、前記入射レ ーザ光を前記顕微鏡に導き入れ、且つ、前記顕微鏡から発せられ、各々が前記着 色剤のうちの1つの励起周波数に対応する多数の蛍光、を含む光を取り込むため の取込み手段と、 前記顕微鏡から発せられる光を取り込むよう配置されていて、前記光を電気信号 に変換する検出手段と、前記検出手段に接続されていて、前記電気信号を累積し 、正確な焦点面に、各々が前記レーザの線の1つに対応する前記検体の複数の像 、を作る制御手段とを具備した多色共焦点顕微鏡システム。
- 2.前記レーザ手段に接続されていて、2つ以上の前記着色剤を励起することと なる前記多数の励起線の発生を抑制するための手段を含む、請求項1の多色共焦 点顕微鏡システム。
- 3.前記入射レーザ光の光路に配設されていて、前記レーザ手段からの前記励起 線のうち選択された励起線を選択的に通過させるフィルタ手段を含む、請求項1 の多色共焦点顕微鏡システム。
- 4.前記顕微鏡から発生される光の光路に配設されていて、前記蛍光のうち選択 された蛍光を前記検出手段に対して選択的に通過させるフィルタ手段を含む、請 求項1の多色共焦点顕微鏡システム。
- 5.前記フィルタ手段が、各前記蛍光を分離した光路に分離し、各前記光路を前 記複数の検出器のうちの1つに導き入れるため前記顕微鏡から発生される光の光 路に配設された二色ミラーを含む、請求項4の多色共焦点顕微鏡システム。
- 6.前記検出手段が、一度に1つの線を検出し、時分割多重式に多色の光学像を 作るための手段を含む、請求項3の多色共焦点顕微鏡システム。
- 7.前記取込み手段が、前記入射レーザ光により前記検体をラスタ走査するため の手段を含み、前記検出手段が、前記反射された光を走査するための手段を含む 、請求項1の多色共焦点顕微鏡システム。
- 8.前記制御手段が、複数の擬似色で前記検体を表示する表示手段を有するコン ピュータを含み、各前記擬似色が前記着色剤のうちの1つの着色剤の発光に係る 蛍光に対応するものである、請求項1の多色共焦点顕微鏡システム。
- 9.前記レーザ手段が、単一のクリプトン・アルゴンレーザを含む、請求項1の 多色共焦点顕微鏡システム。
- 10.前記クリプトン・アルゴンレーザは、各線がフルオレスセイン着色剤、リ ザミンロダミン着色剤およびシアニン5.18着色剤のうちのせいぜい1つを励 起するような、複数のレーザ線を発生するものである、請求項9の多色共焦点顕 微鏡システム。
- 11.前記検出手段が光電子増倍管を含むものである、請求項1の多色共焦点顕 微鏡システム。
- 12.複数の着色剤によって着色された検体を観察する光学顕微鏡と共に使用さ れる多色共焦点顕微鏡システムであって、 複数の線を有するレーザ光を発生する多線レーザであって、前記線のうちのある ものは前記レーザから発するのが選択的に阻止され、前記線のうちの他のものが 前記レーザから励起線として選択的に発せられるようになっており、各前記発せ られる励起線が前記複数の着色剤のうちのただ1つ着色剤の励起周波数に対応す るものである、多線レーザと、 各々が前記レーザ光の光路に選択的に配置された複数の励起フィルタと、 前記励起フィルタの後方において前記レーザ光の光路に配置されており、励起線 を反射し、発せられた蛍光を通過するよう選択された第1の二色フィルタと、前 記第1の二色フィルタから前記レーザ光を取り込み、前記レーザ光を前記顕微鏡 中にラスタ走査パターンで反射するよう配設されており、さらに、前記顕微鏡か ら前記蛍光を取り込み、前記ラスタ走査パターンを走査し、前記第1の二色フィ ルタを介して前記蛍光を反射するよう配設されている走査ユニットと、 前記第1の二色フィルタの後方において前記蛍光の光路に配置されており、前記 発せられる光の前記蛍光のいくつかの波長を反射し、その他の波長を通過するよ う選択された第2の二色フィルタと、 前記第2の二色フィルタを通過した前記蛍光を取り込むよう配設された第1の検 出器と、 前記第2の二色フィルタから反射された前記蛍光を取り込むよう配設された第2 の検出器と を具備した多色共焦点顕微鏡システム。
- 13.特定の周波数の光によって励起された時に蛍光を発する複数の着色剤によ って着色された検体を観察する方法であって、 単一のレーザ光源から、各々が前記着色剤のうちの1つの励起周波数に対応する 多数の励起線、を含んだ多線入射レーザ光を発生する工程と、 前記入射レーザ光を前記検体を保持している前記顕微鏡に導き入れる工程と、 前記顕微鏡から発せられ、各々が前記着色剤のうちの1つ着色剤の励起周波数に 対応する多数の蛍光、を含む光を取り込む工程と、 前記顕微鏡から発せられる光を取り込んで、該光を電気信号に変換する工程と、 前記電気信号を累積し、正確な焦点面に、各々が前記レーザの線の1つに対応す る前記検体の複数の像、を作る工程 とからなる方法。
- 14.2つ以上の前記着色剤を励起することとなる前記多数の励起線の発生を抑 制する工程を含む、請求項13の方法。
- 15.前記入射レーザ光をフィルタ処理し、前起励起線のうち選択された1つの 励起線を選択的に通過させる工程を含む、請求項13の方法。
- 16.前記発生される光をフィルタ処理し、前記蛍光のうち選択された蛍光を選 択的に通過させる、請求項13の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US565,625 | 1990-08-10 | ||
| US07/565,625 US5127730A (en) | 1990-08-10 | 1990-08-10 | Multi-color laser scanning confocal imaging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05501458A true JPH05501458A (ja) | 1993-03-18 |
| JP2824462B2 JP2824462B2 (ja) | 1998-11-11 |
Family
ID=24259447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3505950A Expired - Lifetime JP2824462B2 (ja) | 1990-08-10 | 1991-01-28 | 共焦点顕微鏡用レーザ |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5127730A (ja) |
| EP (1) | EP0495930B1 (ja) |
| JP (1) | JP2824462B2 (ja) |
| AT (1) | ATE179527T1 (ja) |
| CA (1) | CA2067188C (ja) |
| DE (2) | DE69131176T2 (ja) |
| DK (1) | DK0495930T3 (ja) |
| ES (1) | ES2133283T3 (ja) |
| WO (1) | WO1992002839A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07270307A (ja) * | 1992-04-01 | 1995-10-20 | Univ California | 走査型コンフォーカル顕微鏡 |
| JP2000056228A (ja) * | 1998-08-04 | 2000-02-25 | Carl Zeiss Jena Gmbh | レ―ザ走査顕微鏡に使用される波長別検出のためのシステムおよび画像記録方法 |
| JP2002090628A (ja) * | 2000-09-18 | 2002-03-27 | Olympus Optical Co Ltd | 共焦点顕微鏡 |
Families Citing this family (238)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9015793D0 (en) * | 1990-07-18 | 1990-09-05 | Medical Res Council | Confocal scanning optical microscope |
| US5214658A (en) * | 1990-07-27 | 1993-05-25 | Ion Laser Technology | Mixed gas ion laser |
| DE4323129C2 (de) * | 1992-07-24 | 2002-10-02 | Zeiss Carl | Inverses Mikroskop |
| GB9302799D0 (en) * | 1993-02-12 | 1993-03-31 | Medical Res Council | Detecting means for a scanning optical microscope |
| US5547849A (en) * | 1993-02-17 | 1996-08-20 | Biometric Imaging, Inc. | Apparatus and method for volumetric capillary cytometry |
| US5280548A (en) * | 1993-03-11 | 1994-01-18 | Boc Health Care, Inc. | Emission based fiber optic sensors for pH and carbon dioxide analysis |
| US5923430A (en) * | 1993-06-17 | 1999-07-13 | Ultrapointe Corporation | Method for characterizing defects on semiconductor wafers |
| US5479252A (en) * | 1993-06-17 | 1995-12-26 | Ultrapointe Corporation | Laser imaging system for inspection and analysis of sub-micron particles |
| USH1530H (en) * | 1993-06-17 | 1996-05-07 | Ultrapointe Corporation | Surface extraction from a three-dimensional data set |
| US5463897A (en) * | 1993-08-17 | 1995-11-07 | Digital Instruments, Inc. | Scanning stylus atomic force microscope with cantilever tracking and optical access |
| US5381224A (en) * | 1993-08-30 | 1995-01-10 | A. E. Dixon | Scanning laser imaging system |
| US5528426A (en) * | 1994-07-14 | 1996-06-18 | Tti Medical | Laser block beam splitter for microscopes |
| US5863504A (en) * | 1995-03-16 | 1999-01-26 | Bio-Rad Laboratories, Inc. | Fluorescence imaging instrument utilizing fish |
| US5591981A (en) * | 1995-03-16 | 1997-01-07 | Bio-Rad Laboratories, Inc. | Tunable excitation and/or tunable emission fluorescence imaging |
| US5784152A (en) * | 1995-03-16 | 1998-07-21 | Bio-Rad Laboratories | Tunable excitation and/or tunable detection microplate reader |
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- 1991-01-28 CA CA002067188A patent/CA2067188C/en not_active Expired - Lifetime
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- 1991-01-28 JP JP3505950A patent/JP2824462B2/ja not_active Expired - Lifetime
- 1991-01-28 ES ES91905729T patent/ES2133283T3/es not_active Expired - Lifetime
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- 1991-01-28 DE DE199191905729T patent/DE495930T1/de active Pending
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| EP0363931A2 (en) * | 1988-10-11 | 1990-04-18 | E.I. Du Pont De Nemours And Company | Scanning laser microscope system and methods of use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07270307A (ja) * | 1992-04-01 | 1995-10-20 | Univ California | 走査型コンフォーカル顕微鏡 |
| JP2000056228A (ja) * | 1998-08-04 | 2000-02-25 | Carl Zeiss Jena Gmbh | レ―ザ走査顕微鏡に使用される波長別検出のためのシステムおよび画像記録方法 |
| JP2002090628A (ja) * | 2000-09-18 | 2002-03-27 | Olympus Optical Co Ltd | 共焦点顕微鏡 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE495930T1 (de) | 1993-02-25 |
| CA2067188A1 (en) | 1992-02-11 |
| DE69131176D1 (de) | 1999-06-02 |
| ES2133283T3 (es) | 1999-09-16 |
| ATE179527T1 (de) | 1999-05-15 |
| US5127730A (en) | 1992-07-07 |
| EP0495930B1 (en) | 1999-04-28 |
| DK0495930T3 (da) | 1999-11-08 |
| DE69131176T2 (de) | 1999-12-30 |
| WO1992002839A1 (en) | 1992-02-20 |
| CA2067188C (en) | 2001-05-15 |
| EP0495930A1 (en) | 1992-07-29 |
| JP2824462B2 (ja) | 1998-11-11 |
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