EP2010953A1 - Vorrichtung und verfahren zur lichtstarken homogenen beleuchtung mit minimierten lichtreflexen zur anwendung in mikroskopen - Google Patents
Vorrichtung und verfahren zur lichtstarken homogenen beleuchtung mit minimierten lichtreflexen zur anwendung in mikroskopenInfo
- Publication number
- EP2010953A1 EP2010953A1 EP07722192A EP07722192A EP2010953A1 EP 2010953 A1 EP2010953 A1 EP 2010953A1 EP 07722192 A EP07722192 A EP 07722192A EP 07722192 A EP07722192 A EP 07722192A EP 2010953 A1 EP2010953 A1 EP 2010953A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plane
- lens
- light source
- intermediate image
- focal length
- 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
- G02B21/06—Means for illuminating specimens
Definitions
- the method described here is used in reflective microscopes for the appropriate shaping of the illumination beam with high luminous efficacy, and the adaptation of the illumination aperture to the entrance pupil of the microscope objective.
- this invention one can create new uses for relatively low light sources.
- the use of LED light sources in confocal microscopes, which are considered to be very faint, is made possible by this invention.
- the influence of internal light reflections is considerably reduced by a suitable aperture positioning.
- Fig.l Schematic diagram for shaping the light beam for homogeneous image illumination on a defined surface
- Fig. 1 shows the principle for homogenizing the illumination of the intermediate image for use in microscopes with minimal loss of illumination intensity and minimized light reflection.
- Light that can not get into the entrance pupil of the microscope objective used is already eliminated by the aperture combination used to eliminate light reflections.
- an LED (1) should be used. If possible, this should be designed as a Lambert radiator and emit as homogeneously as possible.
- a rectangular aperture (3) is inserted in the rear focal plane of the lens combination.
- the opening must be fully illuminated and must not be partially shaded by possible further apertures.
- the illumination is defined here by the angular distribution of the emitted light intensity. Due to the lambert characteristic of the beam profile, therefore, a very homogeneous illumination of the diaphragm is present at this point.
- the intermediate image plane is homogeneously illuminated.
- a circular aperture (5) is inserted in the rear focal plane of the lens (4).
- the emitter of the LED (1) is focused on this aperture.
- V f 2 / fi.
- b 2 is the distance between the intermediate image plane (6) and the lens (4) and g 2 is the distance between the rectangular diaphragm (3) and the lens (4).
- the pinhole (5) which corresponds to the pinhole (5) of Fig.l
- the field lens (8) on the entrance pupil of the microscope objective (9) is mapped.
- the image of the emitter is thus on the entrance pupil of the lens, appears behind the lens as Angle distribution and is only visible clearly behind the focal plane of the lens.
- the illumination of the sample corresponds approximately to the illumination in the intermediate image plane (6), where typically the confocal filter disc is located.
- the detection branch the light reflected back from the sample is first imaged onto the intermediate image plane (6).
- the field lens (8) with the focal length fj located near the intermediate image plane focuses the pupil of the microscope objective over the beam splitter onto the pupil of the imaging lens (10).
- the imager (10) images the intermediate image (6) onto the detector matrix (11), typically a CCD camera.
- the optical path between the intermediate image plane and the diaphragm (5) or imaging lens (10) should have an identical length in order to achieve maximum illumination.
- a tube length of e.g. 160mm results in continuation of the above example, an enlargement of the diaphragm (5) of a maximum of 1.6. This means that a diaphragm diameter (5) of 5 mm in the illumination branch is imaged onto a pupil diameter of 8 mm and focused again in the detection branch to a spot diameter.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006018721 | 2006-04-20 | ||
PCT/DE2007/000634 WO2007121705A1 (de) | 2006-04-20 | 2007-04-13 | Vorrichtung und verfahren zur lichtstarken homogenen beleuchtung mit minimierten lichtreflexen zur anwendung in mikroskopen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2010953A1 true EP2010953A1 (de) | 2009-01-07 |
Family
ID=38282888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722192A Ceased EP2010953A1 (de) | 2006-04-20 | 2007-04-13 | Vorrichtung und verfahren zur lichtstarken homogenen beleuchtung mit minimierten lichtreflexen zur anwendung in mikroskopen |
Country Status (5)
Country | Link |
---|---|
US (1) | US8023184B2 (de) |
EP (1) | EP2010953A1 (de) |
JP (1) | JP2009534694A (de) |
DE (1) | DE202007018683U1 (de) |
WO (1) | WO2007121705A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10409046B2 (en) | 2015-11-09 | 2019-09-10 | Bioptigen, Inc. | Illumination field diaphragms for use in microscopes and related methods and systems |
JP6699358B2 (ja) * | 2016-05-31 | 2020-05-27 | セイコーエプソン株式会社 | 投射光学系およびプロジェクター |
CN118519265A (zh) * | 2024-07-22 | 2024-08-20 | 宁波永新光学股份有限公司 | 一种显微镜照明系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6313943B1 (en) * | 1998-05-28 | 2001-11-06 | Kistem Co., Ltd. | Underwater microscope |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3637280A (en) * | 1970-05-12 | 1972-01-25 | Jenoptik Jena Gmbh | Devices for high-contrast imaging of phase objects in incident-light microscopy |
JPS56140313A (en) * | 1980-04-04 | 1981-11-02 | Olympus Optical Co Ltd | Illumination system for low-magnification objective lens |
JPS59111124A (ja) * | 1982-12-15 | 1984-06-27 | Olympus Optical Co Ltd | 顕微鏡用照明光学系 |
JPH07122694B2 (ja) * | 1986-10-16 | 1995-12-25 | オリンパス光学工業株式会社 | 顕微鏡用照明装置 |
US5099354A (en) * | 1988-09-14 | 1992-03-24 | Washington University | Kit for converting a slit lamp biomicroscope into a single aperture confocal scanning biomicroscope |
US5861984A (en) | 1995-03-31 | 1999-01-19 | Carl Zeiss Jena Gmbh | Confocal scanning microscope and beamsplitter therefor |
JP3783888B2 (ja) | 1996-11-11 | 2006-06-07 | 株式会社ニコン | コンデンサレンズおよびこれを用いた顕微鏡照明光学系 |
JP3438855B2 (ja) * | 1997-01-23 | 2003-08-18 | 横河電機株式会社 | 共焦点装置 |
DE10110389A1 (de) | 2001-03-03 | 2002-09-12 | Zeiss Carl | Verfahren zur Justierung einer Lampe relativ zu einem Beleuchtungsstrahlengang eines Mikroskopes und zur Ausführung des Verfahrens geeignetes Mikroskop |
US6906859B2 (en) * | 2002-06-05 | 2005-06-14 | Nikon Corporation | Epi-illumination apparatus for fluorescent observation and fluorescence microscope having the same |
US20040227944A1 (en) * | 2003-02-28 | 2004-11-18 | Nikon Corporation | Mark position detection apparatus |
JP2005043517A (ja) * | 2003-07-24 | 2005-02-17 | Nikon Corp | 顕微鏡照明装置とこれを搭載した顕微鏡 |
DE102004050651A1 (de) * | 2004-08-06 | 2006-03-16 | Carl Zeiss Surgical Gmbh | Beleuchtungseinrichtung sowie Beobachtungseinrichtung |
-
2007
- 2007-04-13 DE DE202007018683U patent/DE202007018683U1/de not_active Expired - Lifetime
- 2007-04-13 JP JP2009505712A patent/JP2009534694A/ja active Pending
- 2007-04-13 US US12/226,404 patent/US8023184B2/en active Active
- 2007-04-13 EP EP07722192A patent/EP2010953A1/de not_active Ceased
- 2007-04-13 WO PCT/DE2007/000634 patent/WO2007121705A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6313943B1 (en) * | 1998-05-28 | 2001-11-06 | Kistem Co., Ltd. | Underwater microscope |
Non-Patent Citations (2)
Title |
---|
"Catalog 2003", LINOS, pages: A36 * |
See also references of WO2007121705A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE202007018683U1 (de) | 2009-02-12 |
JP2009534694A (ja) | 2009-09-24 |
US8023184B2 (en) | 2011-09-20 |
WO2007121705A1 (de) | 2007-11-01 |
US20090103175A1 (en) | 2009-04-23 |
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