DE700699C - Photographic lens - Google Patents

Photographic lens

Info

Publication number
DE700699C
DE700699C DE1938Z0024325 DEZ0024325D DE700699C DE 700699 C DE700699 C DE 700699C DE 1938Z0024325 DE1938Z0024325 DE 1938Z0024325 DE Z0024325 D DEZ0024325 D DE Z0024325D DE 700699 C DE700699 C DE 700699C
Authority
DE
Germany
Prior art keywords
lenses
glass
photographic lens
image
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
DE1938Z0024325
Other languages
German (de)
Inventor
Ludwig Bertele
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Priority to DE1938Z0024325 priority Critical patent/DE700699C/en
Application granted granted Critical
Publication of DE700699C publication Critical patent/DE700699C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/12Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only

Landscapes

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

Description

Photographisches Objektiv Die Erfindung geht aus von einem photographischen Objektiv, das aus wenigstens zwei in der Luft stehenden sammelnden Gliedern besteht, die einen nach dem Objekt zu durchgebogenen zerstreuenden Meniskus einschließen, von denen das bildseitige sammelnde Glied aus mehreren Einzellinsen zusammengesetzt ist. Zur Beseitigung restlicher Verzeichnungsfehler bei Objektiven der angegebenen Art, die eine im bildseitigen sammelnden Glied angebrachte .bikonkave Zerstreuungslinse zwischen zwei Sammellinsen angeordnet, von denen jede aus einem Glase besteht, das einen um eine Einheit der ersten Dezimale höheren Brechungsexponenten aufweist als derjenige des Glases der Zerstreuungslinse.Photographic lens The invention is based on a photographic lens Lens consisting of at least two collecting members standing in the air, which include a diffusing meniscus bent towards the object, of which the image-side collecting member is composed of several individual lenses is. To eliminate residual distortion errors in lenses of the specified Kind, which has a biconcave diverging lens attached to the collecting member on the image side arranged between two converging lenses, each of which consists of a glass that has a refraction exponent that is one unit of the first decimal higher than that of the glass of the diverging lens.

Ähnliche Maßnahmen hat man bereits an Hintergliedern von Kittflächen enthaltenden Tripletobjektiven durchgeführt. Jedoch ist der beabsichtigte Zweck in diesen Fällen ein anderer gewesen, als hei der vorliegenden Erfindung. Einerseits sollte nämlich lediglich der allgemeine Korrektionszustand verbessert werden 1)z-,v,. andererseits das 611nungsverhältnis eines solchen Objektivtypes gesteigert «-erden, ohne zu übermäßigen Ausbuchtungen der sphärischen Aberrationskurve Veranlassung zu geben. Da weiterhin bei solchen Objektiven infolge mehr oder weniger svnlmetrischen Aufbaues niemals die Beseitigung des Verzeichnungsfehlers Schwierigkeiten machte, so wurde diese Maßnabine hierfür gar nicht in Betracht gezogen.Similar measures have already been taken on the posterior links of putty surfaces containing triplet lenses carried out. However, it is the intended purpose in these cases was different from that of the present invention. On the one hand namely, only the general state of correction should be improved 1) z-, v ,. on the other hand, the aspect ratio of such a type of lens is increased "- without causing excessive bulges of the spherical aberration curve admit. Since furthermore with such lenses as a result of more or less svnlmetrischen Structure never made the elimination of the distortion error difficult, so this custom-made cabin was not even considered for this.

Bei dein Objektiv gemäß der Erfindung ist jedoch keine Steigerung der Schärfenleistmig notwendig. sondern die an sich bekannte Maßnahme wird lediglich angewendet, um eine wesentliche Verminderung des restlichen Verzeichnungsfehlers zu ermöglichen. In der Zeichnung ist ein Objektivtyp gemäß der Erfindung dargestellt und für eine bevorzugte Ausführungsform desselben das folgende Zahlenbeispiel ausgeführt: 1:2 F-loomm nd v R, ,- 67,54 d, 6,79 L, 1,6204 6o,3 R.= -[- 380,o8 1, 0,38 Rs -I- 3401 d.= 7,17 L, 1,7016 41,2 R,, + 63,22 d 3 7,55 L3 1,5400 59,6 R5 -4Sz,Sz d, 1,89 L, 1,6883 31,2 , R,; ,- 2:f,08 7,50 1..1 9,44 Blendenraum R; - 12876 1,9-1 d., 10,76 L; 1,6204 6o,3 R, - 4437 d,; 1,13 L,; 1.5174 52,4 Ra -f- 4114 d; 22,46 L; 1,6689 48,8 Rio- 89,32 With your lens according to the invention, however, no increase in sharpness is necessary. rather, the measure known per se is only used in order to enable a substantial reduction in the remaining distortion error. In the drawing, an objective type according to the invention is shown and the following numerical example is carried out for a preferred embodiment of the same: 1: 2 F-loomm nd v R, - 67.54 d, 6.79 L, 1.6204 6o, 3 R. = - [- 380, o8 1, 0.38 Rs -I- 3401 d. = 7.17 L, 1.7 0 16 41.2 R ,, + 63.22 d 3 7.55 L 3 1.5400 59.6 R5 -4Sz, Sz d, 1.89 L, 1.6883 31.2 , R ,; , - 2: f, 08 7.50 1..1 9.44 aperture space R; - 12876 1.9-1 d., 10.76 L; 1.6204 6o, 3 R, - 4437 d ,; 1.13 L; 1.5174 52.4 Ra-f- 4114 d; 22.46 L; 1.6689 48.8 Rio- 89.32

Claims (1)

PATENTANSPRUCH: Photographisches Objektiv aus wenigstens zwei in Luft stehenden sammelnden Gliedern, die einen nach dem Objekt zu durchgebogenen zerstreuenden Meniskus einschließen, von denen das bildseitige sammelnde Glied aus mehreren Einzellinsen zusammengesetzt ist, dadurch gekennzeichnet, daß eine iin bildseitigen sammelnden Glied angebrachte bikonkave Zerstreuungslinse zwischen zwei Sammellinsen angeordnet ist, von denen jede aus einem Glase besteht, das einen um eine Einheit der ersten Dezimale höheren Brechungsexponenten aufweist als derjenige des Glases der Zerstreuungslinse.PATENT CLAIM: Photographic lens made of at least two in air standing collecting limbs that disperse one bent towards the object Include meniscus, of which the image-side converging member consists of several individual lenses is composed, characterized in that an iin image-side collecting Link attached biconcave diverging lens arranged between two converging lenses each of which consists of a glass, the one around a unit of the first Has decimal higher refraction exponents than that of the glass of the diverging lens.
DE1938Z0024325 1938-01-09 1938-01-09 Photographic lens Expired DE700699C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938Z0024325 DE700699C (en) 1938-01-09 1938-01-09 Photographic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938Z0024325 DE700699C (en) 1938-01-09 1938-01-09 Photographic lens

Publications (1)

Publication Number Publication Date
DE700699C true DE700699C (en) 1941-01-03

Family

ID=7626125

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938Z0024325 Expired DE700699C (en) 1938-01-09 1938-01-09 Photographic lens

Country Status (1)

Country Link
DE (1) DE700699C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE847216C (en) * 1949-09-08 1952-08-21 Ludwig Bertele lens
DE847217C (en) * 1949-09-11 1952-08-21 Ludwig Bertele lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE847216C (en) * 1949-09-08 1952-08-21 Ludwig Bertele lens
DE847217C (en) * 1949-09-11 1952-08-21 Ludwig Bertele lens

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