DE1988392U - SURGICAL MICROSCOPE WITH TELE LENSE. - Google Patents

SURGICAL MICROSCOPE WITH TELE LENSE.

Info

Publication number
DE1988392U
DE1988392U DE1968Z0011842 DEZ0011842U DE1988392U DE 1988392 U DE1988392 U DE 1988392U DE 1968Z0011842 DE1968Z0011842 DE 1968Z0011842 DE Z0011842 U DEZ0011842 U DE Z0011842U DE 1988392 U DE1988392 U DE 1988392U
Authority
DE
Germany
Prior art keywords
lens
surgical microscope
lense
tele
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.)
Expired
Application number
DE1968Z0011842
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.)
Carl Zeiss SMT GmbH
Original Assignee
Carl Zeiss SMT GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carl Zeiss SMT GmbH filed Critical Carl Zeiss SMT GmbH
Priority to DE1968Z0011842 priority Critical patent/DE1988392U/en
Publication of DE1988392U publication Critical patent/DE1988392U/en
Priority to GB1528469A priority patent/GB1214265A/en
Priority to FR6909877A priority patent/FR2005604A1/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/02Objectives

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)

Description

Operationsmikroskop mit TeleobjektivSurgical microscope with telephoto lens

Die vorliegende Erfindung betrifft eine Verbesserung für den Gebrauch von Arbeits- und Operationsmikroskopen zur Erweiterung des Gesichtsfeldes derartiger Geräte.The present invention relates to an improvement for the use of working and surgical microscopes to expand the field of view of such devices.

Die Erfindung sei anhand der beifolgenden Abbildungen näher erlMutert, von denenThe invention is explained in more detail with reference to the following figures, of which

Fig. 1 das optische Konstruktionsprinzip der bekannten Mikroskope dieser Art schematisch darstellt, während inFig. 1 shows the optical construction principle of the known microscopes of this type schematically represents, while in

Fig. 2 die erfindungsgemäßen Maßnahmen schematisch dargestellt sind.2 shows the measures according to the invention schematically are shown.

Die bekannten Arbeite- und Operationsmikroskope sind vornehmlich, nach folgendem Konstruktionsprinzip ausgeführt:The known working and surgical microscopes are mainly executed according to the following construction principle:

Ein Hauptobjektiv 2 bildet den in seiner Brennebene befindlichen Gegenstand 1 ins Unendliche ab (Parallelstrahlen- A main objective 2 images the object 1 located in its focal plane into infinity (parallel rays

gang hinter dem Hauptobjektiv). Das Lichtbündpl ~wTfcf~vörF~ einer Tubusiinse 4 aufgefangen^ in der Bildebene 5 vereint und durch das Okular.6 betrachtet.passage behind the main lens). The bundle of light ~ wTfcf ~ vörF ~ a tube lens 4 captured ^ united in the image plane 5 and viewed through the eyepiece. 6.

Geräte dieser Art sind außerdem in der Regel mit 2 Strahlengängen als Stereomikroskop ausgebildet, sie können auch an der mit 3 bezeichneten Stelle ein optisches Element zum Wechseln der Vergrößerung enthalten.Devices of this type are also usually with 2 beam paths designed as a stereo microscope, they can also at the point indicated by 3 an optical element for Changing the magnification included.

Die Vergrößerung von Geräten dieser frt und der Abstand vom Okulareinblick zur Objektivebene ist durch die Brennweiten der Objektive 2 (f^) und ** (^) unci durch die Vergrößerung des Okulars 6 gegeben. Um den fbstnnd vom Okulareinblick zur Objektebene den anatomischen Bedingungen des Operateurs optimal anzupassen, verzichtet man gelegentlich auf den Vergrößerungswechsler J> und rückt die Objektive 2 und k so dicht wie möglich aneinander.The magnification of these devices frt and the distance from the ocular to the objective plane is given by the focal lengths of the lenses 2 (f ^) and ** (^) unci by the magnification of the eyepiece. 6 In order to optimally adapt the distance from the eyepiece view to the object plane to the anatomical conditions of the surgeon, the magnification changer J> is occasionally dispensed with and the objectives 2 and k are moved as close as possible to one another.

Ist man nun gezwungen, aus bestimmten Gründen - beispielsweise zur Ertweiterung des (Gesichtsfeldes -die Vergrößerung des Gerätes zu verringern, so muß man die optischen Daten des Gesamtsystems verändern. Es ist bekannt, eine Tubuslinse .4 kürzerer Brennweite und/oder ein schwächer vergrößerndes Okular 6 zu verwenden. Diese Maßnahmen reichen Jedoch in manchen Fällen nicht aus. Es liegt nahe, auch die Brennweite des Hauptobjektivs 2 zu verändern, d.h. in diesem Falle zu vergrößern, um die Vergrösserung des Ge-If you are forced to reduce the magnification of the device for certain reasons - for example to expand the field of view - you must change the optical data of the overall system. It is known to use a tube lens .4 with a shorter focal length and / or a weaker magnifying eyepiece 6 to be used. However, these measures are sometimes not enough. It is natural to change the focal length of the main objective 2, ie, to increase in this case, the increase of the overall

Uft£ 198S592. Fa Cail TOO Heidenheii* I Op«aUo kop mit Teleobjektiv. 5. 4. 68. (T. 5; Z. 1)Uft £ 198S592. Fa Cail TOO Heidenheii * I Op «aUo Kop with telephoto lens. 5. 4. 68. (T. 5; line 1)

samtsystems zu verringern. Bei Verwendung gebräuchlicher Objektive vergrossert sich dabei allerdings zugleich die Schnittweite, d.h. der Abstand von der Objektebehe bis zum Objektiv wird in gleicher Weise grosser.overall system to decrease. When using conventional lenses, however, the back focus increases at the same time, ie the distance from the object level to the lens increases in the same way.

Dies hat zwei schwerwiegende Nachteile:This has two major drawbacks:

1. Der Abstand vom Okulareinblick zur Objektebene wird vergrössert und bringt dadurch für den Operateur anatomisch ungünstige Verhältnisse.1. The distance from the eyepiece viewing point to the object plane becomes enlarges and thus brings anatomically unfavorable conditions for the surgeon.

2. Die mit dem Mikroskop in der Regel fest verbundenen und auf die Objektebene einjustierten Beleuchtungseinrichtungen mtlßten ausgetauscht oder mit einem aufwendigen Verstellmechanismus ausgerüstet werden.2. The ones that are usually firmly connected to the microscope and Lighting devices adjusted to the object plane would have to be replaced or with a complex one Adjustment mechanism can be equipped.

Diese beiden Nachtelle werden gemäß der Erfindung durch Verwendung eines Teleobjektivs (P1) vermieden. Dieses Objektiv wird so dimensioniert, daß nach Austausch des Normalobjektivs gegen das Teleobjektiv die vorher scharf eingestellte Bildebene wiederum scharf erscheint, jedoch - infolge der grösseren Brennweite f2t des Teleobjektivs - in kleinerem Maßstab.These two disadvantages are avoided according to the invention by using a telephoto lens (P 1 ). This lens is dimensioned in such a way that after the normal lens has been replaced by the telephoto lens, the previously focused image plane again appears sharp, but - due to the larger focal length f 2t of the telephoto lens - on a smaller scale.

Es ist also nur darauf zu achten, daß der Abstand von der Bildebene zu einer Bezugsfläche am Gerät (z.D. der Anlage-So you just have to make sure that the distance from the Image plane to a reference surface on the device (e.g. the system

' 7920 Heidenheim, I Operationsmikroskop mit Teleobjektiv. S. 4. 68. Z 11842. σ. 5; Z. 1) '7920 Heidenheim, I Surgical microscope with telephoto lens. P. 4. 68. Z 11842. σ. 5; Line 1)

fläche der Objektiv fassung) erhalten bleibt. In Fig. 2 ist dargestellt, wie die Brennweite des Frontobjektivs und damit die Verbesserung des Systems bei sonst unveränderten äußeren Abmessung-in der gewünschten Weise verändert wird.surface of the lens mount) is retained. In Fig. 2 is shown how the focal length of the front lens and thus the improvement of the system with otherwise unchanged outer dimension-changed in the desired way will.

Claims (1)

(T. 5; Z. 1)(T. 5; line 1) 27.6.6827.6.68 ν - ν SchutzanspruchClaim to protection ArbeitsmlkroskoD, Insbesondere Operationsmikroskop mit bildseitig parallelem Strahlengang, gekennzeichnet durch ein gegen das Hauntobjektiv normaler Brennweite austauschoares Teleobjektiv längerer Brennweite, die a-> bemessen ist, daß der r'b;:';md von der Objektebene bio 7.■: einer Bezugsfl'-iche am Mikrnskon (z.B. AnLsgeflnche dor Objektivfassung) erhalten bleibt.Working microscope, in particular a surgical microscope with a beam path parallel to the image side, characterized by a telephoto lens with a longer focal length exchangeable for the Haunt lens of normal focal length, which is a-> dimensioned so that the r'b;: '; md from the object plane bio 7. ■: a reference surface' -ich is retained on the micron cone (e.g. abutment surface on the lens mount). Pat/Ea/Weiss
8
Pat / Ea / Weiss
8th
DE1968Z0011842 1968-04-05 1968-04-05 SURGICAL MICROSCOPE WITH TELE LENSE. Expired DE1988392U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1968Z0011842 DE1988392U (en) 1968-04-05 1968-04-05 SURGICAL MICROSCOPE WITH TELE LENSE.
GB1528469A GB1214265A (en) 1968-04-05 1969-03-24 Surgical microscope with a tele-objective lens
FR6909877A FR2005604A1 (en) 1968-04-05 1969-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1968Z0011842 DE1988392U (en) 1968-04-05 1968-04-05 SURGICAL MICROSCOPE WITH TELE LENSE.

Publications (1)

Publication Number Publication Date
DE1988392U true DE1988392U (en) 1968-06-27

Family

ID=7622099

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1968Z0011842 Expired DE1988392U (en) 1968-04-05 1968-04-05 SURGICAL MICROSCOPE WITH TELE LENSE.

Country Status (3)

Country Link
DE (1) DE1988392U (en)
FR (1) FR2005604A1 (en)
GB (1) GB1214265A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439820A1 (en) * 1974-08-20 1976-03-04 Moeller J D Optik Floor or ceiling mounted microscope for micro-surgery - can be focused without microscope movement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071275A1 (en) * 2006-12-15 2008-06-19 Carl Zeiss Sms Gmbh Microscope objective having a tubular optical system
JP2009229547A (en) * 2008-03-19 2009-10-08 Mitsutoyo Corp Optical unit and measuring instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439820A1 (en) * 1974-08-20 1976-03-04 Moeller J D Optik Floor or ceiling mounted microscope for micro-surgery - can be focused without microscope movement

Also Published As

Publication number Publication date
FR2005604A1 (en) 1969-12-12
GB1214265A (en) 1970-12-02

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