DE924539C - Microscope lens - Google Patents

Microscope lens

Info

Publication number
DE924539C
DE924539C DEL12605A DEL0012605A DE924539C DE 924539 C DE924539 C DE 924539C DE L12605 A DEL12605 A DE L12605A DE L0012605 A DEL0012605 A DE L0012605A DE 924539 C DE924539 C DE 924539C
Authority
DE
Germany
Prior art keywords
microscope objective
lens
objective according
following data
negative lens
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
DEL12605A
Other languages
German (de)
Inventor
Walter Klein
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar 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 Ernst Leitz Wetzlar GmbH filed Critical Ernst Leitz Wetzlar GmbH
Priority to DEL12605A priority Critical patent/DE924539C/en
Application granted granted Critical
Publication of DE924539C publication Critical patent/DE924539C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives

Description

Das Patent 821 126 betrifft ein Mikroskop-Objektiv mit geebnetem Bildfeld. Es besitzt in an sich bekannter Weise als Fronitlinse einen sogenannten dicken Meniskus. Dieser liefert einen negativen Anteil an der Petzvalsumme des Gesamtsystems, der zur Kompensation der positiven Anteile anderer Systemglieder benutzt wird. Dieser negative Anteil ist dem Betrage nach um so größer, je kleiner der Radius der Frontfläche ist. Damit erhält man einen erheblichen Astigmatismus, denn dieser wächst mit Verkleinerung dieses Radius und könnte allenfalls durch Verkleinerung des Objektabstandes verringert werden, was unerwünscht ist. Daher ist zur Kompensation des Astigmatismus nach dem Hauptpatent eine zerstreuende, zum Objekt hohle Kittnäche in einem sammelnden Glied und eine darauffolgende Negativlinse eingeführt.Patent 821,126 relates to a microscope objective with a leveled field of view. In a manner known per se, it has a so-called Fronit lens thick meniscus. This provides a negative proportion of the Petzval sum of the overall system, the is used to compensate for the positive components of other system elements. This negative part is the greater the magnitude, the smaller the radius of the front surface is. So you get a considerable astigmatism, because this grows with the reduction of this radius and could at most can be reduced by reducing the object distance, which is undesirable. Therefore To compensate for astigmatism, according to the main patent, it is a diffusing one that is hollow towards the object Putty surface in a collecting member and a subsequent negative lens introduced.

Die Ausbildung des aus der Negativlinse und anderen Gliedern bestehenden bildseitigen Teiles des Objektivs kann in mannigfacher Weise geschehen, wie aus den fünf durchgerechneten Exemplaren nach dem Hauptpatent ersichtlich ist.The formation of the image-side part consisting of the negative lens and other members of the lens can be done in manifold ways, as from the five calculated specimens can be seen after the main patent.

Die Erfindung betrifft neue Exemplare des Objektivs nach dem Hauptpatent. Die Erfindung besteht darin, daß im Abstand von mindestens 15 mm von der zum Objekt hohlen zerstreuenden Kittfläche des zweiten Gliedes ein aus der Negativlinse und mindestens einer Positivlinse verkittetes Glied folgt, bei dem die Differenz der Nü-Werte der Glassorten kleiner als 20 ist. Da auch diese Kittfläche zur Kompensation des Astigmatismus herangezogen werden soll, sind zwar die Brechkräfte der sie einschließenden Linsen groß, jedoch soll ihr Einfluß auf die chromatische Längsabweichung gering sein, weil wagen des großen Abstandes ■zwischen dem vorderen und hinteren Systemteil der vordere Teil für sich allein chromatisch korrigiert sein muß. Daher ist die erwähnte kleine Differenz der iVw-Werte erforderlich.The invention relates to new copies of the lens according to the main patent. The invention consists in that at a distance of at least 15 mm from the cemented surface of the second member, which is hollow to the object, a cemented member of the negative lens and at least one positive lens follows, in which the difference in the Nü values of the glass types is less than 20. Since this cemented surface is also to be used to compensate for the astigmatism, the refractive powers of the lenses enclosing them are high, but their influence on the longitudinal chromatic deviation should be small because the large distance between the front and rear system part allows the front part to stand alone only has to be chromatically corrected. Therefore the mentioned small difference of the iVw values is necessary.

Aus den in den Patentansprüchen 2 bis 4 an-From the claims 2 to 4

gegebenen Ausführungsbeispielen ist ersichtlich, daß die Bildebenung und der Astigmatismus mit sehr geringen Werten der Petzvalsumme ΣΡ und Σ Γ erreicht ist, wobei die üblichen Feinkorrek-5. türen für den Erfindung'sgedanken nicht wesentlich sind.given exemplary embodiments, it can be seen that the image planarization and the astigmatism are achieved with very low values of the Petzval sum ΣΡ and Σ Γ , with the usual fine correction. Doors for the invention's idea are not essential.

In der Zeichnung sind die Exemplare nach den Patentansprüchen 2 bis 4 dargestellt. Es zeigt Fig. ι das Exemplar nach Patentanspruch 2, Fig. 2 das Exemplar nach Patentanspruch 3, Fig. 3 das Exemplar nach Patentanspruch 4.The examples according to claims 2 to 4 are shown in the drawing. It shows Fig. Ι the copy according to claim 2, Fig. 2 the copy according to claim 3, 3 shows the example according to claim 4.

Die Radien r, Abstände L und Linsendicken d sind in Millimetern angegeben. ß'e ist die Vergrößerung für die e-Linie, A ist die Apertur, d0 ist das Deckglas.The radii r, distances L and lens thicknesses d are given in millimeters. ß ' e is the magnification for the e-line, A is the aperture, d 0 is the cover slip.

Claims (4)

Patentansprüche:Patent claims: 1. Mikroskop-Objektiv nach Patent 821 126 mit einer als dicker Meniskus ausgebildeten Frontlinse, einer zum Objekt hohlen Kittfläche in einem Sammelglied und einer Negativlinse, dadurch gekennzeichnet, daß im Abstand von mindestens 15 mm von der Kittnäche ein die Negativlimse enthaltendes verkittetes Glied steht, in welchem die Differenz der iVw-Werte der Glassorten kleiner als 20 ist.1. Microscope objective according to patent 821 126 with a front lens designed as a thick meniscus, a cement surface hollow to the object in a collecting member and a negative lens, characterized in that at a distance of a cemented member containing the negative lens is at least 15 mm from the cement surface, in which the difference between the iVw values of the types of glass is less than 20. 2. Mikroskop-Objektiv nach Anspruch 1, gekennzeichnet durch folgende Daten.:2. microscope objective according to claim 1, characterized by the following data: T1 = - 3,9
U = - 6,77 r3 = + ΐο,ο T 1 = -3.9
U = - 6.77 r 3 = + ΐο, ο U = - 7.Ο U = - 7.Ο T8= °°T 8 = °° τΊ = + ΐο,ο
r8 = —16,485 τ Ί = + ΐο, ο
r 8 = -16.485 d0 = 0,17 L0 = 2,4162 d 0 = 0.17 L 0 = 2.4162 J1 — 11,ι L1 = 0,3 J2 = 2,0 ds = 1,0 L2 = 24,0 J4 = 1,0J 1 - 11, ι L 1 = 0.3 J 2 = 2.0 d s = 1.0 L 2 = 24.0 J 4 = 1.0 Jg = 2,0Jg = 2.0 nd/Nu 1,6676/41,9 n d / Nu 1.6676 / 41.9 1,3921/99,8 1,7015/41,11.3921 / 99.8 1.7015 / 41.1 1,6676/41,9 1,5014/56,51.6676 / 41.9 1.5014 / 56.5 ß'e - — 9,9951 /e = 14,9965 ^ = 0,25 ß'e - - 9.9951 / e = 14.9965 ^ = 0.25 ΣΡ = — 0,0124 2 Γ = — 0,0140 ΣΡ = - 0.0124 2 Γ = - 0.0140 3. Mikroskop-Objektiv nach Anspruch ι, gekennzeichnet durch folgende Daten:3. microscope objective according to claim ι, characterized through the following data: nd / Nu i0 = 0,17 1,5228/58,5 n d / Nu i 0 = 0.17 1.5228 / 58.5 T1=- 2,11T 1 = - 2.11 L0 = 1,1229L 0 = 1.1229 d±= 5,1 d ± = 5.1 1,6910/54,8 To = — 4>o 1.6910 / 54.8 To = - 4> o — OO' - OO ' L1 L 1 = 0,5= 0.5 1.4339/95.21.4339 / 95.2 65 6 5 1.4339 / 95.21.4339 / 95.2 7575 1,5001 /61,61.5001 / 61.6 8080 HH = — 6,665= - 6.665 d2 d 2 = 1.4= 1.4 ri r i 1,7283/28,3 701.7283 / 28.3 70 = +41,46= +41.46 L2 L 2 = 0,05= 0.05 r5 r 5 = — 6,07= - 6.07 d3 d 3 = 2,0= 2.0 re r e 1,6910 / 54,81.6910 / 54.8 = —14,44= -14.44 dt d t = 1,0= 1.0 T1 T 1 = —16,9= -16.9 L3 L 3 = 30,5= 30.5 r8 r 8 = + 10,0= + 10.0 d5 d 5 = 1,0= 1.0 r9 r 9 d6
a r d 6
a r = 2,5= 2.5 Lh L h = 152,0= 152.0 ß'e =ß'e = — 24,7422- 24.7422 fe fe == 7.38717.3871 A A. 0,500.50 2P =2P = — 0,0234- 0.0234 2Γ =2Γ = + 0,0593+ 0.0593
4. Mikroskop-Objektiv nach Anspruch 1, gekennzeichnet durch folgende Daten:4. microscope objective according to claim 1, characterized through the following data: ndj Nu 8/ n d j Nu 8 / T1=- 1,36
r2 =■— 2,72
U =—ϊ7,76 U=- 5.89 T 1 = - 1.36
r 2 = ■ - 2.72
U = -ϊ7.76 U = - 5.89 r5= 00 r 5 = 00 T6=- 6,665
r7 = + 26,0
T8-- 4.983
T9 =-—15.0 T 6 = - 6.665
r 7 = + 26.0
T 8-4983
T 9 = -— 15.0 T10=- 22,11 T 10 = - 22.11 r1JL= + 11,02
r12— + 11,02r 1JL = + 11.02
r 12 - + 11.02 d0= 0,17 L0 = 0,6696 d 0 = 0.17 L 0 = 0.6696 = 3,35 1,6910/54,8 = 0,3= 3.35 1.6910 / 54.8 = 0.3 1,4339 / 95,21.4339 / 95.2 a!2 = 0,9a! 2 = 0.9 L2 = 0,05L 2 = 0.05 J3= 1,0J 3 = 1.0 L3 = 0,05L 3 = 0.05 di = 1,6 d i = 1.6 d5 = 0,8 d 5 = 0.8 -L4= 33,o-L 4 = 33, o J6= 1,0J 6 = 1.0 J7 = 2,5 L0 = 152,0J 7 = 2.5 L 0 = 152.0 ß'e =—39,9929 β'e = -39.9929 fe = 4,6960 f e = 4.6960 A = 0,65 A = 0.65 = — 0,0501= - 0.0501 = + 0,0139= + 0.0139 1,4339/95.21.4339 / 95.2 1,4339/95,2 1,7283/28,31.4339 / 95.2 1.7283 / 28.3 1,6910/54,8 1,5001/61,61.6910 / 54.8 1.5001 / 61.6 Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 9595 2.55© 9595 2.55
DEL12605A 1952-06-16 1952-06-17 Microscope lens Expired DE924539C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL12605A DE924539C (en) 1952-06-16 1952-06-17 Microscope lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2713808X 1952-06-16
DEL12605A DE924539C (en) 1952-06-16 1952-06-17 Microscope lens

Publications (1)

Publication Number Publication Date
DE924539C true DE924539C (en) 1955-03-03

Family

ID=25985018

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL12605A Expired DE924539C (en) 1952-06-16 1952-06-17 Microscope lens

Country Status (1)

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DE (1) DE924539C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893290A (en) * 1956-10-16 1959-07-07 Chicago Aerial Ind Inc Optical sighting lens systems
US3010367A (en) * 1956-12-07 1961-11-28 Chicago Aerial Ind Inc Optical sighting lens systems
DE1207111B (en) * 1963-07-09 1965-12-16 Leitz Ernst Gmbh Microscope plan lens with weak magnification
DE1280569B (en) * 1963-07-09 1968-10-17 Leitz Ernst Gmbh Medium magnification microscope plane objective

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893290A (en) * 1956-10-16 1959-07-07 Chicago Aerial Ind Inc Optical sighting lens systems
US3010367A (en) * 1956-12-07 1961-11-28 Chicago Aerial Ind Inc Optical sighting lens systems
DE1207111B (en) * 1963-07-09 1965-12-16 Leitz Ernst Gmbh Microscope plan lens with weak magnification
DE1280569B (en) * 1963-07-09 1968-10-17 Leitz Ernst Gmbh Medium magnification microscope plane objective

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