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DE1071977B - - Google Patents

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Publication number
DE1071977B
DE1071977B DENDAT1071977D DE1071977DB DE1071977B DE 1071977 B DE1071977 B DE 1071977B DE NDAT1071977 D DENDAT1071977 D DE NDAT1071977D DE 1071977D B DE1071977D B DE 1071977DB DE 1071977 B DE1071977 B DE 1071977B
Authority
DE
Germany
Prior art keywords
glass
distances
types
radii
photographic 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.)
Pending
Application number
DENDAT1071977D
Other languages
German (de)
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.)
Publication date
Publication of DE1071977B publication Critical patent/DE1071977B/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

deutsches /mmsk Patentamtgerman / mmsk patent office

kl 42 h 4/08.kl 42 h 4/08.

INTERNAT. KL. G 02 bINTERNAT. KL. G 02 b

AUSLEGESCHRIFT 1071977EDITORIAL NOTICE 1071977

L 28738 IX/42hL 28738 IX / 42h

AN M E LD E T AG: 1. O KTOBER 1957TO M E LD E T AG: OCTOBER 1, 1957

BEKANNTMACHUNG
DER ANMELDUNG
UND AUSGABE DER
AUSLEGESCHRIFT: 24. DEZEMBER 1959 NOTICE
THE REGISTRATION
AND ISSUE OF THE
EDITORIAL: DECEMBER 24, 1959

Die Erfindung betrifft ein fotografisches Objektiv großer Lichtstärke mit zwei zur Blende nahezu symmetrischen Teilen, das als Weitwinkelobjektiv ein Bildfeld von 62° auszeichnet.The invention relates to a photographic lens of high light intensity with two nearly symmetrical to the aperture Share, which, as a wide-angle lens, has an image field of 62 °.

Objektive mit nahezu symmetrischem Aufbau sind bekannt. So ist in der USA.-Patentschrift 2 671 380 ein fotografisches Objektiv beschrieben, das vor und hinter der Blende je vier Linsen enthält. Die zwei äußeren Linsen im Vorder- und Hinterglied sind zur Blende hohle Menisken; die zur Blende benachbarten Linsen sind verkittet und haben plane Glas-Luft-Flächen. Dieses bekannte Objektiv zeichnet ein Bildfeld von etwa 45° aus und ist für ein Öffnungsverhältnis 1 : 3,5 korrigierbar.Lenses with an almost symmetrical structure are known. For example, U.S. Patent 2,671,380 is a photographic lens described that in front and behind the aperture contains four lenses each. The two outer lenses in the front and rear sections are hollow towards the diaphragm Menisci; the lenses adjacent to the diaphragm are cemented and have flat glass-air surfaces. This known lens distinguishes an image field of about 45 ° and can be corrected for an aperture ratio of 1: 3.5.

Zu einem fotografischen Weitwinkelobjektiv großer Lichtstärke kommt man nach der Erfindung durch Verwendung von je vier zur Blende hohle Menisken, deren zwei mittlere zusammen negative Brechkraft haben und vorzugsweise miteinander verkittet sind, während die beiden anderen Menisken positive Brechkraft haben. Die Verwendung plankonvexer bzw. plankonkaver Linsen ähnlich der obengenannten USA.-Patentschrift als Grenzfälle von Menisken ist dabei nicht zweckmäßig.A wide-angle photographic lens with a large light intensity can be achieved according to the invention Use of four menisci hollow to the diaphragm, the two middle of which together have negative refractive power and are preferably cemented to one another, while the other two menisci have positive refractive power to have. The use of plano-convex or plano-concave lenses similar to the above-mentioned USA patent as borderline cases of menisci is not practical.

Die Erfindung besteht ferner in den Durchrechnungen, die in den Tabellen und in der Zeichnung angegeben sind. Hier sind die Radien mit r, die Linsendicke mit d, die Abstände mit α und die Glassorten mit den Brechungsindizes η und den Abbe-Zahlen ν bezeichnet. The invention also consists in the calculations given in the tables and in the drawing. Here the radii are marked with r, the lens thickness with d, the distances with α and the types of glass with the refractive indices η and the Abbe numbers ν .

Das Glas der Linse 7 nach Tabelle 2 mit den Werten η = 1,7899 und ν = 48,0 hat in ungefähren Gewichtsprozenten folgende Bestandteile:The glass of the lens 7 according to Table 2 with the values η = 1.7899 and ν = 48.0 has the following components in approximate percentages by weight:

Fotografisches ObjektivPhotographic lens

Anmelder: Ernst Leitz G.m.b.H., WetzlarApplicant: Ernst Leitz G.m.b.H., Wetzlar

Dipl.-Phys. Walter Mandler, Midland, OntarioDipl.-Phys. Walter Mandler, Midland, Ontario

(Kanada), ist als Erfinder genannt worden(Canada) has been named as the inventor

B2O3 B 2 O 3 LaO3 LaO 3 CdOCdO ZrO2 ZrO 2 Ta2O5 Ta 2 O 5 3030th 4949 1313th 44th 44th

Tabelle 1
= 100; f:2. Table 1
= 100; f: 2.

RadienRadii

Dicken und
AbständeThick and
distances

Glassorten
nä I V Types of glass
n ä I V

= + 87,0
= + 121,4= + 87.0
= + 121.4

= + 33,1= + 33.1

r4 = + 147,9
r5 = + 24,2
rt - I 49,4r 4 = + 147.9
r 5 = + 24.2
r t - I 49.4

^1 = 6,9
U1 = 0,6
d2 = 10,4
ds = 3,0^ 1 = 6.9
U 1 = 0.6
d 2 = 10.4
d s = 3.0

«2 = 5,4«2 = 5.4

1,74401.7440

1,7440
1,66681.7440
1.6668

di = 4,4 1,7200 d i = 4.4 1.7200

44,944.9

44,9
33,0944.9
33.09

50,3150.31

22 = 10,0= 10.0 = 7,5= 7.5 GlassortenTypes of glass »d»D 22 50,3150.31 VV RadienRadii Dicken undThick and Abständedistances = 4,4= 4.4 = 0,66= 0.66 44,944.9 r7 = + 60,7r 7 = + 60.7 U3 U 3 = 3,9= 3.9 = 11,3= 11.3 1,72001.7200 30,0530.05 r, = - 117,9r, = - 117.9 = 3,0= 3.0 = 3,2= 3.2 44,944.9 44,944.9 r, = - 52,2r, = - 52.2 «4«4 = 10,4= 10.4 = 5,9= 5.9 1,69891.6989 33,8833.88 r10 = - 26,2r 10 = - 26.2 d6 d 6 = 6,0= 6.0 = 4,8= 4.8 1,74401.7440 44,944.9 ru = - 182,1r u = - 182.1 d7 d 7 = 8,9= 8.9 = 10,9= 10.9 50,3150.31 r12 = - 34,4r 12 = - 34.4 «B«B. Tabelle 2Table 2 1,74401.7440 GlassortenTypes of glass r13 = - 84,3 r 13 = - 84.3 = 100; f: = 100; f: ^8 ^ 8 Dicken undThick and γ A1 9
'14 — \Jity γ A1 9
'14 - \ Ji t y Abständedistances 1,74401.7440 ff dt d t RadienRadii Cl1 Cl 1 1,74401.7440 T1 = + 82,9 T 1 = + 82.9 d2 d 2 1,64771.6477 r2 = + 161,4 r 2 = + 161.4 dz d z r3 = + 36,1r 3 = + 36.1 1,72001.7200 r4 = + 285,7r 4 = + 285.7 d,d, r, = + 25,4 r, = + 25.4 «3«3 r6 = + 48,6r 6 = + 48.6 r7 = -I- 57,8r 7 = -I- 57.8

909 690/291909 690/291

RadienRadii

Dicken und AbständeThicknesses and distances

GlassortenTypes of glass

= - 128,3= - 128.3

= - 56,8= - 56.8

4,8 1,72004.8 1.7200

50,3150.31

' a4 = 3,6' a 4 = 3.6

- 28,6- 28.6 d6 d 6 - 198,3 - 198.3 djdj -39,2-39.2 = 3,2= 3.2 1,69891.6989 30,0530.05 = 11,3= 11.3 1,78991.7899 48,048.0 = 0,66= 0.66

= - 103,3
= - 66,8= - 103.3
= - 66.8

dt = 14,3 1,7440 44,9 d t = 14.3 1.7440 44.9

Claims (3)

Patentansprüche:Patent claims: 1. Fotografisches Objektiv großer Lichtstärke mit zwei zur Blende nahezu symmetrischen Teilen, gekennzeichnet durch je vier zur Blende hohle Menisken, deren zwei mittlere zusammen negative Brechkraft haben und vorzugsweise miteinander verkittet sind, während die beiden anderen Menisken positive Brechkraft haben.1. A photographic lens of high light intensity with two parts that are almost symmetrical to the aperture, characterized by four menisci hollow towards the diaphragm, the two middle ones together negative Have refractive power and are preferably cemented together, while the other two menisci have positive refractive power. 2. Fotografisches Objektiv nach Anspruch 1, gekennzeichnet durch folgende auf f = 100 bezogene Daten:2. Photographic lens according to claim 1, characterized by the following data related to f = 100: RadienRadii Dicken und AbständeThicknesses and distances GlassortenTypes of glass rR =r R = 87,0
= + 121,4
= + 33,1
= + 147,9
= + 24,2
= + 49,4
= + 60,7
- 117,987.0
= + 121.4
= + 33.1
= + 147.9
= + 24.2
= + 49.4
= + 60.7
- 117.9 d,= 6,9 U1 = 0,6 d2 = 10,4 d3= 3,0 d, = 6.9 U 1 = 0.6 d 2 = 10.4 d 3 = 3.0 a2 = 5,4 a 2 = 5.4 ^4= 4,4 a3 = 10,0^ 4 = 4.4 a 3 = 10.0 dB = 4,4 d B = 4.4 1,7440 44,91.7440 44.9 1,7440 1,66681.7440 1.6668 44,9 33,0944.9 33.09 1,7200 50,311.7200 50.31 1,72001.7200 50,3150.31 RadienRadii DickenThick 11 GlassortenTypes of glass nd n d VV Abständedistances VV = - 52,2= - 52.2 U1 = 3,9 U 1 = 3.9 11 HoHo = - 26,2= - 26.2 ,6989, 6989 30,0530.05 de = 3,0 d e = 3.0 HiHi = - 182,1= - 182.1 ,7440, 7440 44,944.9 d7 == 10,4 d 7 == 10.4 11 HaHa = - 34,4= - 34.4 a6 = 6,0a 6 = 6.0 HsHs = - 84,3= - 84.3 ,7440, 7440 44,944.9 «*„ = 8,9"*" = 8.9
ru = - 61,9 r u = - 61.9 3. Fotografisches Objektiv nach Anspruch 2, gekennzeichnet durch folgende Daten:3. Photographic lens according to claim 2, characterized by the following data: RadienRadii Dicken und
AbständeThick and
distances GlassortenTypes of glass H = H = + 82,9+ 82.9 d1 d 1 - 7,5- 7.5 1,74401.7440 44,944.9 r2 = r 2 = + 161,4+ 161.4 U1 U 1 = 0,66= 0.66 r3 = r 3 = + 36,1+ 36.1 d2 d 2 = 11,3= 11.3 1,74401.7440 44,944.9 T4 = T 4 = ■f 285,7■ f 285.7 d3 d 3 = 3,2= 3.2 1,64771.6477 33,8833.88 r5 = r 5 = + 25,4+ 25.4 a2 a 2 = 5,9= 5.9 r6 — r 6 - + 48,6+ 48.6 dt d t = 4,8= 4.8 1,72001.7200 50,3150.31 T7 = T 7 = + 57,8+ 57.8 a3 a 3 = 10,9= 10.9 rs = r s = - 128,3- 128.3 άά = 4,8= 4.8 1,72001.7200 50,3150.31 γ γ
' 9'9 - 56,8- 56.8 «4«4 = 3,6= 3.6 Ho =Ho = - 28,6- 28.6 d6 d 6 = 3,2= 3.2 1,69891.6989 30,0530.05 Hx = Hx = - 198,3- 198.3 d7 d 7 = 11,3= 11.3 1,78991.7899 48,048.0 Hi =Hi = 39 239 2 = 0,66= 0.66 Hs —Hs - - 103,3- 103.3 d8 d 8 = 14,3= 14.3 1,74401.7440 44,944.9 Hi = Hi = - 66,8- 66.8
In Betracht gezogene Druckschriften: -Patentschrift Nr. 2 671 380.Documents considered: - Patent No. 2,671,380. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DENDAT1071977D 1957-10-01 Pending DE1071977B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1202765X 1957-10-01

Publications (1)

Publication Number Publication Date
DE1071977B true DE1071977B (en) 1959-12-24

Family

ID=7732422

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1071977D Pending DE1071977B (en) 1957-10-01

Country Status (2)

Country Link
DE (1) DE1071977B (en)
FR (1) FR1202765A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268405B (en) * 1963-10-31 1968-05-16 Zeiss Carl Fa Photographic lens
DE2304397A1 (en) * 1972-01-31 1973-08-16 Canon Kk REPRO LENSE WITH HIGH RESOLUTION AND THE ENLARGEMENT ONE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268405B (en) * 1963-10-31 1968-05-16 Zeiss Carl Fa Photographic lens
DE2304397A1 (en) * 1972-01-31 1973-08-16 Canon Kk REPRO LENSE WITH HIGH RESOLUTION AND THE ENLARGEMENT ONE

Also Published As

Publication number Publication date
FR1202765A (en) 1960-01-13

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