DE507939C - Device for illuminating microscopic objects in incident light - Google Patents
Device for illuminating microscopic objects in incident lightInfo
- Publication number
- DE507939C DE507939C DEB143456D DEB0143456D DE507939C DE 507939 C DE507939 C DE 507939C DE B143456 D DEB143456 D DE B143456D DE B0143456 D DEB0143456 D DE B0143456D DE 507939 C DE507939 C DE 507939C
- Authority
- DE
- Germany
- Prior art keywords
- incident light
- illuminating
- microscopic objects
- light
- incident
- 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
- G02B21/082—Condensers for incident illumination only
- G02B21/084—Condensers for incident illumination only having annular illumination around the objective
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Description
Vorrichtung zur Beleuchtung mikroskopischer Objekte im auffallenden Licht Für die mikroskopische Beobachtung undurchsichtiger Objekte im auffallenden Licht hat man besondere Beleuchtungsvorrichtungen vorgeschlagen, die es gestatten, dem Objekt Licht von allen Seiten unter so flacher Neigung zuzuführen, daß auch bei starker Annäherung der Frontlinse die zu beobachtende Oberfläche noch wirksam von dem Licht bestrichen wird. In Abb. i ist schematisch eine solche Einrichtung dargestellt in Verbindung mit einem Mikro. objektiv; wie daraus ersichtlich, wird das etwa parallel zur optischen Achse einfallende Licht durch den Glaskörper g nach zweimaliger Reflexion auf das Objekt o unmittelbar unter die Frontlinse f geleitet.Device for illuminating microscopic objects in incident light For microscopic observation of opaque objects in incident light, special lighting devices have been proposed which allow light to be fed to the object from all sides with such a flat inclination that the surface to be observed even when the front lens is very close is still effectively smeared by the light. Such a device is shown schematically in Fig. I in connection with a micro. lens; As can be seen from this, the light incident approximately parallel to the optical axis is passed through the glass body g after being reflected twice onto the object o directly under the front lens f .
Die dargestellte Einrichtung ist jedoch ziemlich kompliziert und daher teuer; außerdem hat sie den Nachteil, daß die beleuchtenden Strahlen, bevor sie auf das Objektiv fallen, einen Glas- und Luftweg haben, wenn nicht eine Immersionsflüssigkeit angewendet wird; dadurch entsteht ein erheblicher Lichtverlust.However, the illustrated device is rather complicated and therefore expensive; It also has the disadvantage that the illuminating rays before it fall on the lens, have a glass and air path, if not an immersion liquid is applied; this results in a considerable loss of light.
Die Erfindung betrifft eine ähnliche Einrichtung von einfacherer Bauart und ist in den Abb. 2 und g schematisch dargestellt. Sie besteht aus einem ringförmigen Hohlspiegel s, der das Objektiv an seinem unteren Teil umgibt und das in der Richtung der optischen Achse einfallende Licht durch einmalige Reflexion am Hohlspiegel s dem Objekt zuführt. Dabei wird aus praktischen Gründen der Spiegel verstell- und abnehmbar angeordnet, so daß man bequem eine Beleuchtungsregelung durch Höher-und Tieferstellen des Spiegels vornehmen oder bei Anwendung von durchfallendem Licht den Spiegel auch vollständig entfernen kann.The invention relates to a similar device of simpler construction and is shown schematically in Figs. 2 and g. It consists of a ring-shaped Concave mirror s, which surrounds the lens at its lower part and that in the direction light incident on the optical axis due to a single reflection at the concave mirror s supplies the object. For practical reasons, the mirror is adjusted and removably arranged, so that you can comfortably adjust the lighting by raising and lowering Make the mirror lower or when using transmitted light can also remove the mirror completely.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB143456D DE507939C (en) | Device for illuminating microscopic objects in incident light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB143456D DE507939C (en) | Device for illuminating microscopic objects in incident light |
Publications (1)
Publication Number | Publication Date |
---|---|
DE507939C true DE507939C (en) | 1930-09-22 |
Family
ID=7000577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB143456D Expired DE507939C (en) | Device for illuminating microscopic objects in incident light |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE507939C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401432A1 (en) * | 1988-06-07 | 1990-12-12 | Mitsubishi Kasei Corporation | Image magnifying and pick-up system with lighting lightguide device |
DE102008057096A1 (en) * | 2008-11-13 | 2010-05-20 | Carl Zeiss Ag | Near-field microscope for examination of sample, has objective arranged in light paths for microscopic observation of object, and concave mirror e.g. parabolic mirror, focusing excitation light that passed through objective, on object |
-
0
- DE DEB143456D patent/DE507939C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401432A1 (en) * | 1988-06-07 | 1990-12-12 | Mitsubishi Kasei Corporation | Image magnifying and pick-up system with lighting lightguide device |
DE102008057096A1 (en) * | 2008-11-13 | 2010-05-20 | Carl Zeiss Ag | Near-field microscope for examination of sample, has objective arranged in light paths for microscopic observation of object, and concave mirror e.g. parabolic mirror, focusing excitation light that passed through objective, on object |
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