DE507939C - Device for illuminating microscopic objects in incident light - Google Patents

Device for illuminating microscopic objects in incident light

Info

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
Application number
DEB143456D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BUSCH EMIL AG OPTISCHE IND
Original Assignee
BUSCH EMIL AG OPTISCHE IND
Publication date
Priority to DEB143456D priority Critical patent/DE507939C/en
Application granted granted Critical
Publication of DE507939C publication Critical patent/DE507939C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/06Means for illuminating specimens
    • G02B21/08Condensers
    • G02B21/082Condensers for incident illumination only
    • G02B21/084Condensers 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)

PATENTANSPRUCH: Vorrichtung zur Beleuchtung mikroskopischer Objekte im auffallenden Licht, bei der das letztere von der Bildseite außerhalb des Objektivs her dem Objekt zugeleitet wird, gekennzeichnet durch einen konzentrisch zur optischen Achse in der Nähe des Objektivs angebrachten ringförmigen Hohlspiegel, der die einfallenden Beleuchtungsstrahlen dem Objekt zuführt. PATENT CLAIM: Device for illuminating microscopic objects in incident light, in which the latter is fed to the object from the image side outside the objective, characterized by an annular concave mirror attached concentrically to the optical axis near the objective, which feeds the incident illuminating rays to the object .
DEB143456D Device for illuminating microscopic objects in incident light Expired DE507939C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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