DE628349C - Dark field condenser for microscopes - Google Patents
Dark field condenser for microscopesInfo
- Publication number
- DE628349C DE628349C DEL87046D DEL0087046D DE628349C DE 628349 C DE628349 C DE 628349C DE L87046 D DEL87046 D DE L87046D DE L0087046 D DEL0087046 D DE L0087046D DE 628349 C DE628349 C DE 628349C
- Authority
- DE
- Germany
- Prior art keywords
- condenser
- dark field
- microscopes
- aperture
- field condenser
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
- G02B21/08—Condensers
- G02B21/10—Condensers affording dark-field illumination
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Description
Dunkelfeldkondensor für. Mikroskope Die Erfindung bezieht sich auf Mikro, kondensoren -für Dunkelfeldbeleuchtung, bei denen eine einstellbare Blende angeordnet ist, um die untere Grenzapertur des Koridensors .entsprechend der Apertur des jeweils verwendeten Objektivs regeln zu können.Dark field condenser for. Microscopes The invention relates to Micro, condensers - for dark field lighting, where an adjustable aperture is arranged around the lower limit aperture of the coridensor. corresponding to the aperture of the lens used in each case.
Es ist bekannt, zu diesem Zwecke die Blende auf der dem Objekt abgewandten Seite des Kondensors anzuordnen. Diese -Anordnung hat aber den Nachteil, daä noch Reflexe und Überstrahlungen auftreten können, so daß sich, ein scharf abgegrenzter Dunkelraum unter dem Objekt kaum erzielen läßt.It is known for this purpose to place the aperture on the one facing away from the object Side of the condenser. This arrangement has the disadvantage that it is still there Reflections and glare can occur, so that a sharply demarcated one Dark space under the object can hardly be achieved.
Erfindungsgemäß wird dieser Mangel dadurch behoben, daß man die Blende zwischen Objekt und Kondensor anordnet und mittels einer durch eine Durchbohrung des Glaskörpers des Kondensors hindurchgehende Bewegungsvorrichtung axial verstellbar macht, so daß die Blende hin und her geschoben werden kann.According to the invention, this deficiency is remedied by the fact that the aperture arranged between the object and the condenser and by means of a through a through hole the moving device passing through the glass body of the condenser is axially adjustable makes so that the cover can be pushed back and forth.
In. der Zeichnung ist die Erfindung in zwei Ausführungsbeispielen dargestellt, und zwar zeigt Abb. i einen bisphärischen Dunkelfeldhondensor, Abb. 2 einen Linsendunkelfeldkondensor. In der Abb. i befindet sich in der für den Beleuchtungsstrahlengang nicht verwendeten Durchbohrung des Glaskörpers ia =eines Dunkelfeldkondensorseine Gewindeführung q. für eine Achse 5, an deren .objektseitigem Ende eine. Blende 2 angebracht ist. Durch Drehen der Achse 5 läßt sich die; Blende so verschieben, daß die untere Grenzapertur des Kondensors geregelt bzw. gegenüber der eigentlichen unteren Grenzapertur des Kondensors erhöht werden kann, wie, durch die schraffierte Darstellung des Strahlenbündels in Abb. i und 2 angedeutet ist.In. The drawing shows the invention in two exemplary embodiments shown, namely Fig.i shows a bispherical darkfield probe, Fig. 2 a lens dark field condenser. In Fig. I is the one for the illumination beam path unused perforation of the glass body ia = a dark field condenser Thread guide q. for an axis 5, at its .object-side end a. Aperture 2 is appropriate. By turning the axis 5, the; Move the aperture so that the lower limit aperture of the condenser regulated or compared to the actual lower limit aperture of the condenser can be increased, as indicated by the hatched Representation of the beam in Fig. I and 2 is indicated.
In gleicher Weise geht in Abb. 2 die Führungsachse 6 für die Blende, 2 durch eine. Durchbohrung 3 des Linsenkondensors iL.In the same way, the guide axis 6 for the diaphragm goes in Fig. 2, 2 through one. Through hole 3 of the lens condenser iL.
._Die Regelung der unteren Gnenzapertur könnte auch durch Verschieben des Kondensors vorgenommen werden.._The regulation of the lower Gnenzapertur could also by moving of the condenser.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL87046D DE628349C (en) | Dark field condenser for microscopes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL87046D DE628349C (en) | Dark field condenser for microscopes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE628349C true DE628349C (en) | 1936-04-02 |
Family
ID=7286214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL87046D Expired DE628349C (en) | Dark field condenser for microscopes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE628349C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2922212A1 (en) * | 1978-06-05 | 1979-12-06 | Olympus Optical Co | MICROMANIPULATOR FOR MICROSCOPES |
FR2661255A1 (en) * | 1990-04-24 | 1991-10-25 | Azema Alain | Optical system intended to convert a light beam, with an adjustable distribution, and implementing apparatus |
-
0
- DE DEL87046D patent/DE628349C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2922212A1 (en) * | 1978-06-05 | 1979-12-06 | Olympus Optical Co | MICROMANIPULATOR FOR MICROSCOPES |
FR2661255A1 (en) * | 1990-04-24 | 1991-10-25 | Azema Alain | Optical system intended to convert a light beam, with an adjustable distribution, and implementing apparatus |
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