EP3673304A1 - Mikroskopobjektiv und mikroskop mit einem solchen objektiv - Google Patents
Mikroskopobjektiv und mikroskop mit einem solchen objektivInfo
- Publication number
- EP3673304A1 EP3673304A1 EP18755163.5A EP18755163A EP3673304A1 EP 3673304 A1 EP3673304 A1 EP 3673304A1 EP 18755163 A EP18755163 A EP 18755163A EP 3673304 A1 EP3673304 A1 EP 3673304A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- immersion
- objective
- microscope
- microscope objective
- lens
- 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.)
- Withdrawn
Links
- 238000007654 immersion Methods 0.000 claims abstract description 116
- 238000000386 microscopy Methods 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000003384 imaging method Methods 0.000 claims abstract description 6
- 239000005871 repellent Substances 0.000 claims abstract description 6
- 230000002940 repellent Effects 0.000 claims description 3
- 230000001846 repelling effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 239000007788 liquid Substances 0.000 description 42
- 238000004140 cleaning Methods 0.000 description 9
- 238000012937 correction Methods 0.000 description 4
- 239000006059 cover glass Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/33—Immersion oils, or microscope systems or objectives for use with immersion fluids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/0088—Inverse microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/02—Objectives
Definitions
- the invention relates to a microscope objective for imaging a sample with a microscope, wherein the microscope objective as an air lens for microscopy without immersion medium or as ⁇ limmersionsêtiv for microscopy with oil-based immersion medium or water immersion objective for microscopy m water-based immersion medium or as a multi-immersion objective for selective microscopy without immersion medium or with oil-based immersion medium or with water-based immersion medium.
- the invention further relates to a microscope with such a microscope objective.
- immersion objectives offer numerous advantages, which ultimately result from the higher, achievable apertures of the objectives.
- An im- aging medium with as high a refractive index as possible which does not exceed that of the cover glass of the sample, maximizes the aperture in microscopy.
- various immersion media are used, including organic replacement media for water, e.g. Carl Zeiss Immersol W and Immersol G.
- the immersion media are usually liquid at the usual temperature.
- Microscopy of living cells in aqueous environments uses water-based immersion media. Since the index of refraction of the immersion medium and sample medium is very similar there, but the cover glass usually has a different refractive index, an optical correction is required to avoid spherical aberrations at deeper penetration into the sample. However, this correction only applies to a specific cover glass thickness and type, which is why water immersion objectives usually have a correction mechanism which corrects deviations from the cover glass thickness and type, which was the basis for the correction, by moving a lens or lens group in the lens.
- EP 171 7628 A1 and EP 2256535 A1 disclose a mechanism for inverse microscope objectives, ie microscope objectives, which microscopy a sample from below.
- a mechanism is provided at the front edge of the lens cover, which prevents a drop of immersion liquid applied to the front lens from running over the front edge of the lens cover.
- drain hoses are provided, the immersion liquid targeted derive downward.
- An inner zone of the rim is repulsive to the immersion fluid for which the microscope is designed.
- a surrounding outer zone is designed exactly opposite, so that it dissipates immersion liquid, which has reached them to the outside.
- JP 4603295 discusses various concepts which avoid contamination of the interior of the lens with immersion liquid. Two of the solutions described therein correspond to those of the cited EP publications. A third solution, which is described in the Japanese publication, provides a groove on the lens, which prevents excess immersion liquid from running in objective. Further, JP 4603295 proposes for a oil immersion based microscope a lipophilic coating on the lens surface surrounded by a lipophobic coating on the edge of the lens surface. This prior art therefore deals in various approaches with it to avoid contamination of an objective with immersion liquid or to intentionally dissipate excess immersion liquid.
- the invention is therefore based on the object to ensure a consistently high imaging quality in microscopy.
- the invention is defined in the independent claims.
- the dependent claims define preferred embodiments.
- the invention also provides that the microscope objective is also repelled by the medium of its front lens, so that it repels all immersion media for which it is not suitable.
- a distinction is made between water-based immersion media and oil-based immersion media.
- the front lens is both hydrophobic and lipophobic.
- a microscope objective which is designed for ⁇ limmersion, it is purely hydrophobic, so does not repel oil-based substances.
- a microscope objective design for water-based microscopy it is purely lipophobic, so it does not repel water-based immersion media.
- the coating to produce a flow channel for repelled immersion medium by an immersion-repellent layer is applied to a lens mount and a lens cover, which surrounds the front lens.
- This layer exposes a field on the lens mount and the lens cover that extends away from the front lens. It defines a flow channel.
- the immersion-medium-repellent layer used here may be the same as on the front lens of the microscope objective.
- a first cap is intended for microscopy without immersion medium and is lipophilic and hydrophobic.
- a second cap is intended for microscopy with water-based immersion medium and is purely lipophobic.
- a third cap is intended for microscopy with oil-based immersion medium and is purely hydrophobic.
- the caps are placed only in a certain angular position on the microscope objective and have on the front lens surrounded edge a drainage channel.
- the lens cover is lipophobic and hydrophobic, leaving a field extending away from the front lens. This then acts as a drainage channel for rejected immersion medium and preferably also ends in said collecting container.
- the Formulation "purely hydrophobic” or “purely lipophobic” expresses that no repulsion occurs for the respective other type of immersion liquid.
- the repellency properties of the layers are defined by the contact angle at the interface. At a contact angle of 90 ° or greater one speaks of a repellent layer.
- the term "hydrophobic” and “lipophobic” includes repulsion angles of z. B. greater 1 1 0 °. Such properties are also referred to in the literature as superhydrophobic or superlipophobic.
- the repellent properties of the corresponding surface can be achieved by a surface treatment.
- the treatment may be a coating.
- Such is preferred and will be described below purely by way of example.
- Coatings which are hydrophobic, lipophobic or lipophobic and hydrophobic also called om niphobic
- Coatings preferably have a transmiss ion of more than 95% in the spectral range of 365-900 nm.
- the coatings preferably have a self-regenerating property. This property eliminates damage without external influences, ie defects will feel self-contained, so that the repulsive property in damaged areas regenerates itself. These materials are known, they have in solid materials mobile elements that diffuse to the defect, there a solid connection with the intact material giving the misalignment and fill it up In a temperature range of +5 to + 70 °, the coatings are preferably resistant. The same applies to UV irradiation from 300 nm to 450 nm.
- a development of the invention provides that the microscope objective itself and components of the microscope, e.g. Lenses, knobs, buttons, interfaces to other modules or structures to be sealed against liquids.
- an interface between the microscope objective and the stand is lipo-hydrophobic (ie omniphobic) on the opposite surfaces. This prevents immersion liquids, but also embedding media, nutrient solution, buffer, etc., to penetrate into an interface between the tripod and the microscope objective and be drawn in by the capillary effect.
- a wrong immersion is repelled and can not remain on the lens.
- the Abiaufraum and the liquid flow are clearly defined by the optionally provided drainage channels and preferably directed to a receptacle in which they then is disposed of.
- a tilt of the lens in the microscope to support the directed discharge through the drainage channel.
- the invention thus not only prevents the use of a wrong immersion liquid, but also ensures a clear disposal, which is particularly advantageous for irritating or toxic immersion liquids, without the user having to intervene.
- the tripod is then protected from liquids and the associated damage potential.
- a liquid sensor is provided in the discharge channel, which detects the removal of a (possibly wrong) immersion liquid and causes an additional cleaning of the lens.
- a cleaning process may include, in particular, applying the air to the objective, rotating the objective revolver, etc.
- a cleaning process may include, in particular, applying the air to the objective, rotating the objective revolver, etc.
- a cleaning process may include, in particular, applying the air to the objective, rotating the objective revolver, etc.
- a transition between lens and tripod can be repugnant.
- the lipo-and hydrophobic property is also formed at an interface, for example on rotating rings, of the microscope objective and / or lens mount of the microscope objective in order to prevent contamination of the optical elements of the microscope. This is particularly advantageous when lenses are inserted into a liquid-filled chamber. Elaborate sealing rings can then be omitted.
- FIG. 3 shows the upper side of an objective of the microscope of FIG. 1, FIG.
- Fig. 5 shows an interface between the microscope of Figure 3 and the microscope stand of Figure 1 and
- Fig. 6 shows an alternative embodiment of the lens.
- FIG. 1 schematically shows a microscope 1 which has a nosepiece 2 in a base of a stand 3. On the stand 3 is further a sample table 4, on which a sample 5 is arranged.
- a lighting device 6 illuminates the sample 5 from above, an objective 7 held in the objective turret 2 images the illuminated sample 5.
- FIG. 2 shows an enlarged view of the relationships between the objective 7 and the sample 5, which consists of a sample carrier 5a with a resting sample substance 5b.
- the objective 7 comprises a front lens 8 onto which, depending on the configuration of the objective 7, an immersion liquid 9 is applied.
- the objective 7 is designed for a specific immersion liquid. There are also cases where the lens 7 must be used without immersion. Then the immersion liquid 9 is omitted and must not be applied.
- the front lens 8 of the lens 7 is provided with a coating 10 which repels an immersion liquid for which the objective 7 is not designed.
- the coating is omniphobic.
- the coating is hydrophobic, in the case of a water immersion objective it is lipophobic.
- Figure 3 is shown as an embodiment, an air lens 7, the coating is omniphobic. This is illustrated by cross hatching.
- Form extends the coating not only on the front lens 8, but also on the lens cover along down. This is optional. Further, it is optional that the coating leaves a flow channel 1 1 free at which the shell and the edge of the front of the microscope objective is not coated. Due to this lack of coating, an erroneously applied immersion liquid, which is repelled by the coating 10, runs down through the drainage channel 11.
- the drain channel 1 1 ends in a receptacle 12 which receives the unwanted liquid.
- FIG. 3 shows an optional immersion liquid sensor 13, which detects whether immersion liquid 1 1 ran off in the discharge channel.
- the sensor 13 responds to the existence of any immersion liquid. It supplies a corresponding signal to a control unit, for example a control unit C in the microscope 1. This will indicate that the lens needs cleaning or an automatic cleaning process will be initiated. This may include the inflation of compressed air or the pivoting of the lens in a specific position by the nosepiece 2.
- Automatic cleaning processes are known to the person skilled in the art. They can be used here as soon as the sensor 13 detects that immersion liquid has been used on the air lens 7. If the objective 7 is an immersion objective, the sensor 13 is designed to determine the type of immersion liquid. If he detects an immersion fluid for which the Objective 7 was not suitable, he initiates the measures already described.
- FIG. 4 shows a plan view of the front side of the objective, here for the case of an oil immersion objective.
- the coating 10 covers the dashed line front lens 8. It is hydrophobic, which is illustrated by a diagonal hatching from bottom left to top right. The edge of the lens cover, however, is provided with a layer 14. It is thereby achieved that not only a wrong immersion liquid, which is repelled by the coating 10, can not cover the surface with the layer 14, but also the oil-based immersion liquid, which would be permissible here. By contrast, the discharge channel 11 is not coated at all, so that correct and incorrect immersion liquid can flow through the discharge channel 11 to the receiving container 12.
- FIG. 5 schematically shows an interface 14 between the objective turret 2 and the objective 7.
- the interface 15 is, for example, a thread or a bayonet closure. It is also provided on both sides with the omniphobe layer 14.
- An omniphobe layer has the advantage that no immersion liquid can be drawn into the interface 15 by capillary forces. In particular, therefore, not an admissible for the lens and per se immersion liquid.
- the interface can be generally between parts of the tripod, between Parts of the lens, between lens and tripod, between attachments and tripod, between the lens and attachments and / or between the sample chamber / sample carrier and lens.
- FIG. 6 shows an embodiment in the case of a multi-immersion objective which, depending on the requirements, can be used with different immersions.
- a cap 16 is provided, which has the coating 10 and is arranged above the front lens 8.
- the cap 16 is designed with respect to its coating 10 to a certain immersion property. In the illustrated embodiment, it is designed for microscopy without immersion liquid, as can be seen in the cross-hatching. In the case of oil or water immersion microscopy, the cap would be provided with a hydrophobic or lipophobic coating 10.
- the edge of the lens, d. H. the jacket or the lens cover is provided with the omniphobic layer 14, which in turn leaves the flow channel 1 1 to the receptacle 12.
- the omniphobic coating is necessary because three types of caps 16 are provided for the microscope objective 7.
- a first cap 16 is shown, omniphob coated and is used for the use of the microscope objective as an air lens.
- a second cap is lipophobic coated and is intended for use as a water immersion objective.
- a third cap is hydrophobic coated and serves as an oil immersion objective when using the multi-immersion objective.
- the cap 16 with a mechanism, for. B. a nose 17 is provided, which together with a corresponding counterpart 18 on the jacket of the lens 7 ensures that the cap 16 is placed in a specific rotational position, so that the field which is not provided with the layer 14 on the microscope objective, in extension of the field where the cap is not provided with the coating 10.
- the flow channel is thus continuous.
- this feature can be omitted.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Microscoopes, Condenser (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017119095.3A DE102017119095B4 (de) | 2017-08-21 | 2017-08-21 | Mikroskopobjektiv und Mikroskop mit einem solchen Objektiv |
| PCT/EP2018/071272 WO2019038070A1 (de) | 2017-08-21 | 2018-08-06 | Mikroskopobjektiv und mikroskop mit einem solchen objektiv |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3673304A1 true EP3673304A1 (de) | 2020-07-01 |
Family
ID=63207734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18755163.5A Withdrawn EP3673304A1 (de) | 2017-08-21 | 2018-08-06 | Mikroskopobjektiv und mikroskop mit einem solchen objektiv |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11474335B2 (de) |
| EP (1) | EP3673304A1 (de) |
| CN (1) | CN111095039B (de) |
| DE (1) | DE102017119095B4 (de) |
| WO (1) | WO2019038070A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345726A (ja) * | 2004-06-02 | 2005-12-15 | Olympus Corp | 顕微鏡対物レンズ及び顕微鏡対物レンズを用いた観察方法 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8624431U1 (de) | 1986-09-12 | 1986-12-04 | Dylla, Rainer, 4020 Mettmann | Objektträger für nasse oder feuchte biologische Präparate, z.B. Blut |
| US5200152A (en) * | 1988-03-28 | 1993-04-06 | Cytonix Corporation | Miniaturized biological assembly |
| US5948685A (en) | 1998-02-10 | 1999-09-07 | Angros; Lee | Analytic plate with containment border and method of use |
| JP4536654B2 (ja) | 2003-03-20 | 2010-09-01 | 浜松ホトニクス株式会社 | 固浸レンズ及び顕微鏡 |
| US7436750B2 (en) * | 2003-06-19 | 2008-10-14 | Call/Recall Inc. | Optical storage with ultra high storage capacity |
| US6809794B1 (en) * | 2003-06-27 | 2004-10-26 | Asml Holding N.V. | Immersion photolithography system and method using inverted wafer-projection optics interface |
| DE10333326B4 (de) * | 2003-07-23 | 2007-03-15 | Evotec Technologies Gmbh | Vorrichtung und Verfahren zur Untersuchung chemischer und/oder biologischer Proben sowie Objektivaufsatz |
| WO2005043215A1 (ja) | 2003-10-31 | 2005-05-12 | Hamamatsu Photonics K.K. | 試料観察方法及び顕微鏡、並びにこれに用いる固浸レンズ及び光学密着液 |
| US7324274B2 (en) * | 2003-12-24 | 2008-01-29 | Nikon Corporation | Microscope and immersion objective lens |
| EP2256535B1 (de) | 2004-02-16 | 2012-07-04 | Olympus Corporation | Rückhaltemechanismus für ein Immersionsmedium und Herstellungsverfahren dafür |
| US7674927B2 (en) | 2005-05-23 | 2010-03-09 | Innovation Chemical Technologies, Ltd | Fluorinated organic silicon coating material |
| JP2009503375A (ja) * | 2005-07-20 | 2009-01-29 | ニューフレイ リミテッド ライアビリティ カンパニー | リテーナを有するヒンジ付クリップ |
| EP2103635B1 (de) | 2007-01-17 | 2012-09-12 | Asahi Glass Company, Limited | Ölabweisendes copolymer, verfahren zu dessen herstellung und ölabweisende verarbeitungsflüssigkeit |
| ATE523254T1 (de) | 2007-06-25 | 2011-09-15 | Ibidi Gmbh | Probenkammer |
| JP2009217049A (ja) | 2008-03-11 | 2009-09-24 | Hoya Corp | 顕微鏡対物レンズおよび顕微鏡 |
| DE202011005278U1 (de) | 2011-04-15 | 2012-09-20 | Euroimmun Medizinische Labordiagnostika Ag | Objektträger |
| JP6445455B2 (ja) | 2012-12-28 | 2018-12-26 | エシロール アンテルナショナルEssilor International | 防汚性の改良された光学物品の製造方法 |
| US20140333998A1 (en) * | 2013-03-12 | 2014-11-13 | Board Of Trustees, Southern Illinois University | Micro-lens for high resolution microscopy |
| DE102013012182A1 (de) * | 2013-07-22 | 2015-01-22 | Hans-Ulrich Dodt | Modulares Mikroskopobjektiv für Immersionsmedium |
| DE102014002744A1 (de) | 2014-02-27 | 2015-08-27 | Carl Zeiss Microscopy Gmbh | Immersionsmedium und dessen Anordnung in einem optischen System |
| JP6851582B2 (ja) | 2014-05-29 | 2021-03-31 | グローバル・ライフ・サイエンシズ・ソリューションズ・ユーエスエー・エルエルシー | 細胞培養用顕微鏡スライドの改良およびそれに関連する改良 |
| KR101851435B1 (ko) | 2015-12-07 | 2018-04-23 | 명지대학교 산학협력단 | 카메라 렌즈부를 클리닝하는 장치 및 방법 |
-
2017
- 2017-08-21 DE DE102017119095.3A patent/DE102017119095B4/de active Active
-
2018
- 2018-08-06 US US16/640,706 patent/US11474335B2/en active Active
- 2018-08-06 EP EP18755163.5A patent/EP3673304A1/de not_active Withdrawn
- 2018-08-06 WO PCT/EP2018/071272 patent/WO2019038070A1/de not_active Ceased
- 2018-08-06 CN CN201880053905.1A patent/CN111095039B/zh active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345726A (ja) * | 2004-06-02 | 2005-12-15 | Olympus Corp | 顕微鏡対物レンズ及び顕微鏡対物レンズを用いた観察方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111095039A (zh) | 2020-05-01 |
| DE102017119095B4 (de) | 2025-02-06 |
| US11474335B2 (en) | 2022-10-18 |
| DE102017119095A1 (de) | 2019-02-21 |
| US20200355901A1 (en) | 2020-11-12 |
| CN111095039B (zh) | 2022-11-25 |
| WO2019038070A1 (de) | 2019-02-28 |
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