DE1764846U

DE1764846U - PHOTOGRAPHIC LENS.

Info

Publication number: DE1764846U
Application number: DE1958Z0005186
Authority: DE
Original assignee: Carl Zeiss SMT GmbH
Current assignee: Carl Zeiss SMT GmbH
Priority date: 1958-02-20
Filing date: 1958-02-20
Publication date: 1958-04-10

Description

Photographisches Objektiv Die Erfindung betrifft lichtstarke photographische Objekt tive bestehend aus vier Gliedern, und zwar zwei inneren meniskenförmigen zerstreuenden Gliedern, die einander die hohle Seite zukehren und die Blende einschließen und zwei äußeren sammelnden Gliedern, wobei das zweite und das vierte Glied unverkittete Einzellinsen sind, während das erste und das dritte Glied meniskenförmige Verbundglieder sind, die je aus zwei miteinander verkitteten Linsen entgegengesetzter Brechkraft bestehen, wobei die Zerstreuungslinse jeweils der Blende zugekehrt ist.Photographic Lens This invention relates to high speed photographic lenses Objective consisting of four members, two inner meniscus-shaped dissipating limbs that turn the hollow side towards each other and enclose the diaphragm and two outer collecting links, the second and fourth links being uncut Individual lenses are, while the first and third members are meniscus-shaped composite members are made up of two lenses of opposite refractive power that are cemented together exist, with the diverging lens facing the diaphragm.

(Vgl. brit. PS 480 643, US PS 2 748 656).(See British PS 480,643, US PS 2,748,656).

Der Erfindung liegt die Aufgabe zugrunde, lichtstarke Ob jektive der genannten Bauart zu schaffen, bei denen die Schnittweite mindestens 70 % der Brennweite beträgt. Die Objektive gemäß der Erfindung besitzen eine derartige Schnittweite und weisen die folgenden Merkmale auf : 0.62'f I ! Î. OO. f - 6 < : r, + i'rgj- 1. 00'f 0.4Scf'0. 7So'f 1.5-'-t 0.42, f d + d d + d 0. 65-f 4 5 6 7 0.15-f d5 0. 30-f . 111 + V 1. b5------ n 2, 0 Z iogo 1 Hierbei sowie in den beiden nachfolgenden Tabellen I und II, in denen die Zahlenwerte für zwei Beispiele von Objektiven gemäß der Erfindung angegeben sindy sind bezeichnet . mit L die Linsen, mit r die Radien mit d die Scheitelabstände, mit n die Brechzahlen ; mit v die Abbeschen Zahlen, mitdn, Xr die Plächeribrechkräfte, mita'die Schnittweite und mit f die Brennweite. In der beifolgenden Abbildung ist das Linsenschema die- serObjektive wiedergegeben. Die angegebenen Tabellenwerte sind auf eine Brennweite f = 1. 00 bezogen. Das Of Snt vez ältnis-oeträgt bei beiden Objektivbeispielen 1 : 2. Tabelle1 Scheitel- Linsen Radien abstände n v l r = + 0. 99395 LI d = 0. 11615 1. 71300 53. 89 r2=-3. 09812 L. d = 0. 06050 1. 59551 39. 20 2 r= + 3. 28173 d = 0. 00332 r4 =.)-0, 35520 LIII d4 == 0, 11270 1. 67270 32. 23 r5 = + von26256 d== 0, 23763 r6=-0. 30759 L. .'d = 0. 04840 1, 7870 26. 10 0 r'7 = + 4. 2520 LV d = 0. 14779 1. 744CO 44. 90 r 4101 8 dr, = 0. 00302 o r = + 3. 40194 L . dg = 0. 11494 1.'74400 44. 90 r=-0. 88584 s'=-0. 8022-f TabelleII Scheitel- Linsen Radien abstände 11 v ru = + 0. 92627 L'd = 0. 11632 1. 71300 53.89 r2=-3. 05836 d2 = 0. 06058 1. 59551 39.20 r3 = + 4.13749 d3 = 0. 00303 r4 = + 0. 37141 LIII d4 = 0. 11268 1.66892 44.98 r5 =i-0. 27852 d = 0. 18781 r6-0. 31704 LIV d6 : : : 0. 04847 1. 78470 26. 10 r7 = + 4.25829 LV d = 0. 13328 1. 744-00 44.90 rg =-0. 41674 d8 = 0. 00303 r = + 3.76799 Ly-dq =0. 09693 1.73520 41. 00 mio=-0. 93294 s'0. 7585 f The invention is based on the object of creating bright objects of the type mentioned, in which the back focus is at least 70% of the focal length. The objectives according to the invention have such Back focus and have the following characteristics: 0.62'f I! Î. OO. f - 6 <: r, + i'rgj- 1. 00'f 0.4Scf'0. 7So'f 1.5 -'- t 0.42, fd + dd + d 0. 65-f 4 5 6 7 0.15-f d5 0. 30-f . 111 + V 1. b5 ------ n 2, 0 Z iogo 1 Here as well as in the two following Tables I and II, in which the numerical values for two examples of objectives according to the invention are given, are denoted. with L the lenses, with r the radii with d the vertex distances, with n the refractive indices; with v the Abbe numbers, mitdn, Xr the frictional forces, mita'the back focal length and with f the focal length. In the figure below, the lens scheme is the serObjectives reproduced. The table values given are based on one focal length f = 1. 00 related. The Of Snt vez alten-o contributes both lens examples 1: 2. Table 1 Apex Lens radius spacing n / a l r = + 0. 99395 LI d = 0.1615 1. 71300 53.89 r2 = -3. 09812 L. d = 0. 06050 1. 59551 39. 20 2 r = + 3.28173 d = 0. 00332 r4 =.) - 0.3520 LIII d4 == 0, 11270 1. 67270 32. 23 r5 = + of 26256 d == 0, 23763 r6 = -0. 30759 L. .'d = 0. 04840 1, 7870 26. 10 0 r'7 = + 4. 2520 LV d = 0.14779 1. 744CO 44.90 r 4101 8 dr, = 0. 00302 O r = + 3. 40194 L. dg = 0.11494 1.'74400 44.90 r = -0. 88584 s' = - 0. 8022-f Table II Apex Lens radius spacing 11 v ru = +0.92627 L'd = 0.1632 1. 71300 53.89 r2 = -3. 05836 d2 = 0. 06058 1. 59551 39.20 r3 = + 4.13749 d3 = 0. 00303 r4 = + 0. 37141 LIII d4 = 0.11268 1.66892 44.98 r5 = i-0. 27852 d = 0.18781 r6-0. 31704 LIV d6::: 0. 04847 1. 78470 26. 10 r7 = + 4.25829 LV d = 0.13328 1. 744-00 44.90 rg = -0. 41674 d8 = 0. 00303 r = + 3.76799 Ly-dq = 0. 09693 1.73520 41.00 mio = -0. 93294 s'0. 7585 f

Claims

Claims for protection 1. Fast photographic lens, consisting of four members, namely two inner meniscus-shaped diffusing members, the hollow side facing each other and enclosing the diaphragm, and two outer collecting members, whereby the second and fourth members are cemented individual lenses, while the first and the third member are meniscus-shaped composite members, each consisting of two cemented lenses of opposite refractive power, the diverging lens in each case facing the diaphragm, characterized9 that the the following characteristics are met in common

0. 62'f <r + jrg 1. 001 4th 0.45'f '<- r5 + jr61 <0. 75, f 0. 42'f <d4 + d- + d6 + d. y 0. 65'f 4 5 6 0.15. f '<. d5- <: O .. 30'f TTT + V 165 <nIII + ny- ('. 2 nIV 2.0 ----- <L 10, 0 -. 1

2. Photographic lens according to claim 1 thereby indicates that its design data with those of the values to be taken from the following table insofar agree 'that every sphere (n / r) within a range of + 0. 35 / f and each vertex distance (d) within a range front-0. 07'f on both sides of the in the value given in the following table.

Apex Lens radius spacing n / a r = + 0.99395'f + 0.717340 / f LI d1 = O. 11615of 1 071300 53.89 r2 = -3. 09812-f + 0. 037923 / f LIId2 = 0. 06050f 1. 59551 39.20 r3 = + 3.28173'f "0. 18162 / f d3 = 0. 00302of r4 = + 0. 35520-f + 1. 893847 / f Lrrr d. = 0. 11270f 1, 67270 32. 23 r = + 0.26256'f-2. 562091 / f d5 = 0.23763'f r6 = -0. 30759'f.-2. 551107 / f L-ry d = u. U4-J40f 1. 78470 25. 10 iv 6 r7 = + 4.25209'f-0. 009572 / f LV d7 = 0.14779'f 1. 74400 44.90 r8 = -0. 41018. f + 1.813829 / f d8 = 0. 00302oft erg = + 3.40194ob + 0. 218699 / f 9 LVI dg = 0. 11494. f 1.74400 44. 90 r = -O. 88584'f + 0.839877 / f

s' = 0. 8022'f

3 n photographic lens according to claim 1, characterized in that indicates that its design data match those of the uu values to be taken from the following table insofar . i following Ta'be-L agree that every sphere (, n / r) within of a range of 0. 35 // f and every vertex distance (d) within a range of -0. 07'f on both sides of the in the value given in the following table:

Parting " Lens radii spaced D .. 'n / r r, = -r 0.92627 ° f + 0. 769754 / T L d. = 0. 11632f 1, 71300 53. 89 r? - 3. 05856 "fr 0, 058416 / f 0, 060580-'L '41, 59551 3920 r = +, 1379. f-0, 143930 / f d = 0.00303-f ru. 1 + 0. 371-1 --- T '+ 1. 801028 /' LrrTd, = 0.11268f 1. 66892 44.98 r = -0. 27852. f-2. 401695 / f d -6 24-75082 / '- P. L dg = 0. 04847-'f 1. 78470 26. 10 iv r = + 4. 25829-f "- 0.009558 / f L. yd = 0.13328f 1. 74400 44.90 rg = -0. 41674. f + 1. 785286 / f 8 = O41674 -'- . dg = 0. 00303'f r = + 3. 76799't + 0. 19511. 7 / f 9 L'd 0. 09693of 1. 73520 41.00 r. Q = -0. 93294'f + 0. 788046 / f

s <= 0.7585 ° i '