AT33745B - Ramsden eyepiece. - Google Patents

Ramsden eyepiece.

Info

Publication number
AT33745B
AT33745B AT33745DA AT33745B AT 33745 B AT33745 B AT 33745B AT 33745D A AT33745D A AT 33745DA AT 33745 B AT33745 B AT 33745B
Authority
AT
Austria
Prior art keywords
sep
lens
eyepiece
ramsden
ramsden eyepiece
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zeiss Carl Fa
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
Priority claimed from DE1906188200D external-priority patent/DE188200C/de
Application filed by Zeiss Carl Fa filed Critical Zeiss Carl Fa
Application granted granted Critical
Publication of AT33745B publication Critical patent/AT33745B/en

Links

Landscapes

  • Lenses (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Ramsdensches Okular. 
 EMI1.1 
 Augenlinsensystem aus drei Linsen besteht, die derart in zwei Gliedern angeordnet sind, dass einer einfachen Linse, auf der wesentlich die   Sammelwirkung   des Systems beruht, eine verkittete Korrektionslinse vorangestellt ist, die der einfachen Linse die erhabene Seite ihrer   KittflÅache   
 EMI1.2 
 Wirkung   innewohnen,   werden durch den praktischen Nachteil ziemlich entwertet, der daraus entsteht, dass die beiden   verkitteten   Flächen eine sehr starke Krümmung erhalten. So beträgt der Radius dieser   Krümmung   in dem Rechnungsbeispiel   der angeführten Patentschrift wenig   mehr als ein Drittel der Brennweite des Augenlinsensystems. 



   Eine eindringende Nachprüfung der Aufgabe, als deren Lösung sich jenes AugenlinsenSystem für Ramsdensche Okulare darstellt, hat zur vorliegenden Erfindung geführt, indem sich 
 EMI1.3 
 ist, wenn sie nur   verhältnismässig   schwach ist, etwa so lange die Stärke der Doppellinse die Hiilfte der Stärke der einfachen Linse nicht   überschreitet.   



     Die Untersuchung   hat ferner ergeben, dass die Abschwächung der Krümmung der Kittfläche am grösste wird, wenn man die Reihenfolge der beiden Glieder umkehrt, wenn also   dif     sammelnde   einfache Linse, der nach vorliegender Erfindung die Doppellinse die hohle Seite ihrer Kittfläche zukehren muss. die Vorderlinse ist. 
 EMI1.4 
   angeführt. 



  Radien. Dicken und Abstände:   
 EMI1.5 
 
<tb> 
<tb> r1 <SEP> = <SEP> ¯ <SEP> # <SEP> l <SEP> = <SEP> 34,8
<tb> r2 <SEP> = <SEP> - <SEP> 100 <SEP> d1 <SEP> = <SEP> 15,0
<tb> r3 <SEP> = <SEP> + <SEP> 80,3 <SEP> m1 <SEP> = <SEP> 80
<tb> r4 <SEP> = <SEP> ¯ <SEP> # <SEP> d11 <SEP> = <SEP> 15,5
<tb> r5 <SEP> @ <SEP> + <SEP> 125 <SEP> m2 <SEP> 0
<tb> r6 <SEP> @ <SEP> 76 <SEP> dIII <SEP> 17,5
<tb> r7 <SEP> @ <SEP> 200 <SEP> dIV <SEP> @ <SEP> 5,0
<tb> 
 

 <Desc/Clms Page number 2> 

 Glasarten : 
 EMI2.1 
 
<tb> 
<tb> I, <SEP> III <SEP> II <SEP> IV
<tb> nQ <SEP> = <SEP> 1,50762 <SEP> 1,58703 <SEP> 1,60814
<tb> nF <SEP> = <SEP> 1,51559 <SEP> 1,59673 <SEP> 1,62474
<tb> 
 
PATENTANSPRÜCHE :

   
1.   Ramsdensehes   Okular, dessen Augenlinsensystem aus einer   sammelnden   einfachen Linse und einer höchstens halb so starken, zerstreuenden oder sammelnden   Doppellinse be-   steht, dadurch gekennzeichnet, dass die Doppellinse die hohle Seite ihrer   KittfiÅache   der einfachen   Linse zukehrt.  



   <Desc / Clms Page number 1>
 



  Ramsden eyepiece.
 EMI1.1
 The eye lens system consists of three lenses which are arranged in two members in such a way that a simple lens, on which the collecting effect of the system is essentially based, is preceded by a cemented correction lens, which the simple lens has the raised side of its cemented surface
 EMI1.2
 Effect inherent in, are pretty much devalued by the practical disadvantage that arises from the fact that the two cemented surfaces receive a very strong curvature. The radius of this curvature in the calculation example of the cited patent is little more than a third of the focal length of the eye lens system.



   A thorough examination of the problem, the solution of which is presented by that eye lens system for Ramsden eyepieces, has led to the present invention in that
 EMI1.3
 is, if it is only comparatively weak, as long as the power of the double lens does not exceed half the power of the single lens.



     The investigation has also shown that the weakening of the curvature of the cemented surface is greatest when the order of the two members is reversed, i.e. if the simple lens that collects the difference, to which according to the present invention the double lens has to face the hollow side of its cemented surface. the front lens is.
 EMI1.4
   cited.



  Radii. Thicknesses and distances:
 EMI1.5
 
<tb>
<tb> r1 <SEP> = <SEP> ¯ <SEP> # <SEP> l <SEP> = <SEP> 34.8
<tb> r2 <SEP> = <SEP> - <SEP> 100 <SEP> d1 <SEP> = <SEP> 15.0
<tb> r3 <SEP> = <SEP> + <SEP> 80.3 <SEP> m1 <SEP> = <SEP> 80
<tb> r4 <SEP> = <SEP> ¯ <SEP> # <SEP> d11 <SEP> = <SEP> 15.5
<tb> r5 <SEP> @ <SEP> + <SEP> 125 <SEP> m2 <SEP> 0
<tb> r6 <SEP> @ <SEP> 76 <SEP> dIII <SEP> 17.5
<tb> r7 <SEP> @ <SEP> 200 <SEP> dIV <SEP> @ <SEP> 5.0
<tb>
 

 <Desc / Clms Page number 2>

 Glass types:
 EMI2.1
 
<tb>
<tb> I, <SEP> III <SEP> II <SEP> IV
<tb> nQ <SEP> = <SEP> 1.50762 <SEP> 1.58703 <SEP> 1.60814
<tb> nF <SEP> = <SEP> 1.51559 <SEP> 1.59673 <SEP> 1.62474
<tb>
 
PATENT CLAIMS:

   
1. Ramsdensehes eyepiece, the eye lens system of which consists of a single collecting lens and a double lens that is at most half as strong, dispersing or collecting, characterized in that the double lens faces the hollow side of its cemented surface towards the single lens.

 

Claims (1)

2. Ausführungsform des Okulars nach Anspruch 1, dadurch gekennzeichnet, dass die ein fache Linse die vordere ist. EMI2.2 2. embodiment of the eyepiece according to claim 1, characterized in that the one-fold lens is the front. EMI2.2
AT33745D 1906-06-11 1907-01-02 Ramsden eyepiece. AT33745B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1906188200D DE188200C (en) 1906-06-11

Publications (1)

Publication Number Publication Date
AT33745B true AT33745B (en) 1908-07-25

Family

ID=5720766

Family Applications (1)

Application Number Title Priority Date Filing Date
AT33745D AT33745B (en) 1906-06-11 1907-01-02 Ramsden eyepiece.

Country Status (1)

Country Link
AT (1) AT33745B (en)

Similar Documents

Publication Publication Date Title
DE2554952C3 (en) Optical overlay system for a rigid inner viewing tube
DE2105277A1 (en) Apochromatic microscope objective
AT33745B (en) Ramsden eyepiece.
AT79184B (en) Reversing optical system.
DE2621981C3 (en) Four-part Gaussian lens
DE403706C (en) Photographic lens
AT45566B (en) Lens system for Dutch telescopes, the lens of which consists of two converging elements.
DE2366540C2 (en) Condenser for a microscope
AT79458B (en) Eyepiece.
AT140938B (en) Microscope.
AT50974B (en) Reversing eyepiece system.
DE1045119B (en) Wide angle lens
AT88606B (en) Eyepiece.
DE2036298C3 (en) Lens for night vision devices
AT86760B (en) Prism binoculars.
AT53555B (en) Photographic single lens made of three cemented lenses, the middle of which is biconcave.
AT43783B (en) Prism combination for the deflection of two beams coming from opposite directions in a common direction.
AT64853B (en) Separating prism system.
AT103793B (en) Eyepiece.
AT37724B (en) Yellow filter set up for mounting in front of a camera lens for taking pictures on substrates with a multi-colored intermediate layer.
AT71122B (en) Spherical, astigmatic and chromatically corrected lens.
DE230745C (en)
DE1208096B (en) Magnifying glass with at least 10x magnification and an angle of view of around 60 degrees
AT49856B (en) Basic rangefinder.
DE2242193A1 (en) MIRROR ARRANGEMENT FOR RADIATION GUIDANCE IN A GAS DYNAMIC LASER