DE665520C - Photographic lens - Google Patents
Photographic lensInfo
- Publication number
- DE665520C DE665520C DEL86619D DEL0086619D DE665520C DE 665520 C DE665520 C DE 665520C DE L86619 D DEL86619 D DE L86619D DE L0086619 D DEL0086619 D DE L0086619D DE 665520 C DE665520 C DE 665520C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- diaphragm
- positive
- negative meniscus
- meniscus
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Description
Photographisches Objektiv Für photographische und kinematographische Aufnahmezwecke bestimmte lichtstarke Objektive mit anastigmatischer Bildfeldebnung, die aus einer Zerstreuungslinse und zwei objektseitig vorgeschalteten samrnelnden Gliedern sowie einem auf der Bildseite angeordneten sammelnden Systemteil zusammengesetzt sind, der aus zwei an Luft grenzenden Einzelgliedern besteht, sind bereits bekannt. Durch die Ausbildung des bildseitigen sammelnden Systemteils aus zwei sammelnden Einzellinsen ließ sich in bekannter Weise für das Gesamtobjektiv bei gegebenur Brechkraft eine Verminderung der sphärischen Aberration und damit eine Steigerung der nutzbaren Systemöffnung erreichen. Von dieser Maßnahme hat man in neuerer Zeit zur Erzielung besonders hoher Lichtstärken verschiedentlich Gebrauch gemacht, obgleich dadurch oft eine Vergrößerung anderer Bildfehler in Kauf genommen werden mußte. So wurde die bildseitige Sammellinse zwecks Verminderung insbesondere der Koma in zwei Glieder entgegengesetzter Brechkraft zerlegt. Beide Glieder bestehen aus Gläsern gleicher mittlerer Brechung und haben ein achbarflächenpaar gleichen Vorzeichens von nur wenig verschiedener Krümmung. Das negative Element kehrt seine hohle Seite dem Bilde zu. Der Krümmungsunterschied der beiden "achbarradien ist absichtlich gering gehalten, um lediglich eine Beeinflussung der oberen Komastrahlen erzielen zu können.Photographic lens For photographic and cinematographic Certain bright lenses with anastigmatic image field flattening for recording purposes, the one consisting of a diverging lens and two collectors connected upstream on the object side Structures as well as a collecting system part arranged on the picture side are, which consists of two individual members bordering on air, are already known. Due to the formation of the image-side collecting system part from two collecting Individual lenses could be used in a known manner for the entire objective with a given refractive power a reduction in spherical aberration and thus an increase in usable Achieve system opening. This measure has recently been used to achieve this especially high luminous intensities made various use, albeit because of this often an enlargement of other image defects had to be accepted. So became the image-side converging lens for the purpose of reducing the coma in particular in two limbs opposite refractive power decomposed. Both links consist of glasses of the same type mean refraction and have a pair of adjacent surfaces of the same sign of only little different curvature. The negative element turns its hollow side into the picture to. The difference in curvature of the two "achbar radii is intentionally kept small, in order to only be able to influence the upper coma rays.
Die Erfindung bezweckt die Erreichung eines sehr lichtstarken Objektivs mit anastigmatischer Bildfeldebnung unter gleichzeitiger Einhaltung von nur kleinen Zonenresten. Sie geht aus von einem Objektiv, das vor der Blende aus einer Zerstreuungslinse und zwei objektseitigvorgeschalteten sammelnden Gliedern besteht, von denen das erste Glied ein positiver Meniskus und das andere Glied eine plan- oder bikonvexe Linse ist, die beide einen Luftraum in Form eines negativen Meniskus einschließen, dessen Mittendicke kleiner ist als '/lo der Dicke der zwischen dem objektseitigen positiven Meniskus und der Zerstreuungslinse liegenden plankonvexen oder bikonvexen Linse, während der hinter der Blende, also auf der Bildseite angeordnete Systemteil aus zwei durch einen Luftzwischenraum getrennten Gliedern entgegengesetzten Stärkevorzeichens und positiver Gesamtwirkung zusammengesetzt ist, von denen der zerstreuende Teil die Form eines negativen Meniskus besitzt und der Blende benachbart ist. Erfindungsgemäß ist dieser negative Meniskus so angeordnet, daß er seine Hohlfläche der Blende zukehrt, und die Summe der positiven Brechkräfte der zwei durch Luftabstand voneinander getrennten -Nachbarflächen der beiden Glieder des bildseitigen Systemteils beträgt etwa das r,;fache der Brechkraft des Gesamtobjektivs.The invention aims to achieve a very bright lens with anastigmatic flattening of the image field while maintaining only small Zone remnants. It is based on a lens, which in front of the diaphragm consists of a diverging lens and two collecting elements connected upstream on the object side, of which the first link a positive meniscus and the other link a flat or biconvex Lens, both of which enclose an air space in the form of a negative meniscus, whose center thickness is less than 1/10 of the thickness between the object-side positive meniscus and the diverging lens are plano-convex or biconvex Lens, while the system part arranged behind the diaphragm, i.e. on the image side of two members of opposite strength signs separated by an air gap and overall positive effect is composed of which the dispersive part is in the shape of a negative meniscus and is adjacent to the diaphragm. According to the invention this negative meniscus is arranged so that its hollow surface faces the diaphragm, and the sum of the positive powers of the two separated by an air gap -Adjacent areas of the two elements of the image-side system part is about that r,; times the refractive power of the entire lens.
In der Zeichnung ist ein Objektiv nach der Erfindung schematisch dargestellt. Darin bedeuten in Übereinstimmung mit dem nachfolgenden Zahlenbeispiel R die Radien, d die Dicken und a die Abstände der Linsen L. Die Gläser sind durch die mittlere Brechzahl no und die Abbesche Zahl v gekennzeichnet. Zur Erzielung besonderer Wirkungen ist es in an sich bekannter Weise möglich, an einer oder mehreren Linsen Kittflächen einzuführen. Eine solche Kittfläche ist in der Zeichnuhg und der Zahlentafel vorgesehen.In the drawing, an objective according to the invention is shown schematically. Here, in accordance with the numerical example below, R denotes the radii, d denotes the thicknesses and a denotes the distances between the lenses L. The glasses are characterized by the mean refractive index no and the Abbe number v. In order to achieve special effects, it is possible in a manner known per se to introduce cemented surfaces on one or more lenses. Such a putty surface is provided in the drawing and the number table.
f = 3,ooo. Relative öffnung i : 1,35 R, = + 2,616 dl = 0,340 yirt -- 1,623o v =-= 57,1 R., = +9,712 a1 = 0,0486 R3 = +1,426 d2 = 0,492 n1) = 2,623o v = 57, 1 R4 = plan a2 = 0,0486 R5 = -I9,42 d3 = o,067 ni., = 1,5490 v = 457 R, = -t- o,886 a3 = o6430 R; = _I,214 d4 = 0,492 n1, = 1,648o v = 33.8 RS = -- 1,700 a4 = o,oo6l R,, = -fi 3398 4 = 0,492 nD = i,6io6 v -- 55,6 R'9 = -:2,069 d5"= 0,o67 nD = 1,6480 v = 46,5 R1,= - 2,461 Die Gesamtkorrektion dieses Linsensystems erlaubt es, die Krümmungsradien des objektseitig vorgeschalteten positiven Meniskus I_1 unter Einhaltung einer geringen Dicke im Verhältnis zueinander so zu wählen, daß eine Anfangsöffnung des Systems von I : 1,35 erreichbar ist. Die anastigmatische Bildfeldebnung kann dabei über einen Bildwinkel von etwa 36° gut durchgeführt «-erden.f = 3, ooo. Relative opening i: 1.35 R , = + 2.616 dl = 0.340 yirt - 1.623o v = - = 57.1 R., = +9.712 a1 = 0.0486 R3 = +1.426 d2 = 0.492 n1) = 2.623o v = 57, 1 R 4 = R 5 = 0.0486 plan a2 = -I9,42 d3 = o, 067 ni = 1.5490 v = 457 R, = -t o, 886 a3 = o6430 R. = _I, 214 d4 = 0.492 n1, = 1.648ov = 33.8 RS = - 1.700 a4 = o, oo6l R ,, = -fi 3398 4 = 0.492 nD = i, 6io6 v - 55.6 R'9 = - : 2.069 d5 "= 0.067 nD = 1.6480 v = 46.5 R1, = - 2.461 that an initial opening of the system of I: 1.35 can be achieved. The anastigmatic image field flattening can be carried out well over an image angle of about 36 °.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL86619D DE665520C (en) | 1934-09-20 | 1934-09-20 | Photographic lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL86619D DE665520C (en) | 1934-09-20 | 1934-09-20 | Photographic lens |
Publications (1)
Publication Number | Publication Date |
---|---|
DE665520C true DE665520C (en) | 1938-09-27 |
Family
ID=7286125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL86619D Expired DE665520C (en) | 1934-09-20 | 1934-09-20 | Photographic lens |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE665520C (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2622478A (en) * | 1950-01-09 | 1952-12-23 | Leitz Ernst Gmbh | Photographic objective lens system |
US2627205A (en) * | 1950-01-13 | 1953-02-03 | Voigtlander & Sohn Ag | Corrected four-unit photographic objective comprising two half systems enclosing thediaphragm |
US2627204A (en) * | 1950-04-29 | 1953-02-03 | Voigtlander & Sohn Ag | Four-component gauss-type photographic objective of high lighttransmitting capacity |
US2645155A (en) * | 1950-01-16 | 1953-07-14 | Voigtlander & Sohn Ag | Photographic objective of high light-transmitting capacity of the gauss type |
US2646721A (en) * | 1950-01-16 | 1953-07-28 | Voigtlander & Sohn Ag | Gauss type photographic objective having two lens systems on opposite sides of a diapragm |
US2649023A (en) * | 1950-01-27 | 1953-08-18 | Voigtlander & Sohn Ag | Modified gauss-type four-component photographic objective |
US2662447A (en) * | 1951-06-21 | 1953-12-15 | Voigtlaender Ag | Modified gauss-type high-speed photographic objective with anastigmatic flattened field |
US2672788A (en) * | 1950-07-26 | 1954-03-23 | Agfa Camera Werk Ag | Photographic objective comprising two outer positive single element members enclosing two meniscal shaped negative members |
US2673491A (en) * | 1950-09-14 | 1954-03-30 | Voigtlaender Ag | Photographic objective comprising four lens members separated by air spaces and enclosing the diaphragm |
US2676517A (en) * | 1951-10-29 | 1954-04-27 | Taylor Taylor & Hobson Ltd | Optical objectives comprising six air spaced components enclosing a diaphragm |
US2677989A (en) * | 1952-02-02 | 1954-05-11 | Voigtlaender Ag | Four-component objective of the modified gauss-type |
US2683395A (en) * | 1951-04-23 | 1954-07-13 | Schneider Co Optische Werke | Optical objective system of the gauss type comprising four air-spaced members |
US2683396A (en) * | 1951-04-30 | 1954-07-13 | Schneider Co Optische Werke | Optical objective system of the gauss type comprising five airspaced members |
DE931501C (en) * | 1950-01-27 | 1955-08-11 | Voigtlaender A G | Fast photographic lens of the modified Gauss type |
US2733636A (en) * | 1956-02-07 | Four component optical objective system | ||
US2735340A (en) * | 1956-02-21 | aklin | ||
US2748656A (en) * | 1954-02-12 | 1956-06-05 | Zeiss Carl | Four component gauss type photographic objective |
DE949690C (en) * | 1951-05-01 | 1956-09-27 | Schneider Co Optische Werke | Optical system made up of five elements separated from one another by air gaps |
US2831397A (en) * | 1955-02-15 | 1958-04-22 | Zeiss Carl | Photographic objective |
DE1048043B (en) * | 1953-12-03 | 1958-12-31 | Freiberger Praez Smechanik Veb | Photographic lens with two dispersing menisci lying between two converging links |
DE972279C (en) * | 1950-07-20 | 1959-06-25 | Voigtlaender A G | Fast lens of the modified Gauss type with anastigmatic image field flattening |
DE1064251B (en) * | 1952-02-02 | 1959-08-27 | Voigtlaender Ag | Modified Gauss system with anastigmatic image field flattening |
DE1069399B (en) * | 1959-11-19 | |||
DE1107414B (en) * | 1955-02-15 | 1961-05-25 | Zeiss Carl Fa | Photographic lens |
DE2315071A1 (en) * | 1973-03-27 | 1974-10-03 | Zeiss Carl Fa | STRONG LENS WITH SHORT SECTION AND COMPACTLY BUILT BACK LINK |
JPS57151910A (en) * | 1981-03-17 | 1982-09-20 | Konishiroku Photo Ind Co Ltd | Xenoter type macrolens |
-
1934
- 1934-09-20 DE DEL86619D patent/DE665520C/en not_active Expired
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735340A (en) * | 1956-02-21 | aklin | ||
DE1069399B (en) * | 1959-11-19 | |||
US2733636A (en) * | 1956-02-07 | Four component optical objective system | ||
US2622478A (en) * | 1950-01-09 | 1952-12-23 | Leitz Ernst Gmbh | Photographic objective lens system |
US2627205A (en) * | 1950-01-13 | 1953-02-03 | Voigtlander & Sohn Ag | Corrected four-unit photographic objective comprising two half systems enclosing thediaphragm |
US2645155A (en) * | 1950-01-16 | 1953-07-14 | Voigtlander & Sohn Ag | Photographic objective of high light-transmitting capacity of the gauss type |
US2646721A (en) * | 1950-01-16 | 1953-07-28 | Voigtlander & Sohn Ag | Gauss type photographic objective having two lens systems on opposite sides of a diapragm |
DE931501C (en) * | 1950-01-27 | 1955-08-11 | Voigtlaender A G | Fast photographic lens of the modified Gauss type |
US2649023A (en) * | 1950-01-27 | 1953-08-18 | Voigtlander & Sohn Ag | Modified gauss-type four-component photographic objective |
US2627204A (en) * | 1950-04-29 | 1953-02-03 | Voigtlander & Sohn Ag | Four-component gauss-type photographic objective of high lighttransmitting capacity |
DE972279C (en) * | 1950-07-20 | 1959-06-25 | Voigtlaender A G | Fast lens of the modified Gauss type with anastigmatic image field flattening |
US2672788A (en) * | 1950-07-26 | 1954-03-23 | Agfa Camera Werk Ag | Photographic objective comprising two outer positive single element members enclosing two meniscal shaped negative members |
US2673491A (en) * | 1950-09-14 | 1954-03-30 | Voigtlaender Ag | Photographic objective comprising four lens members separated by air spaces and enclosing the diaphragm |
US2683395A (en) * | 1951-04-23 | 1954-07-13 | Schneider Co Optische Werke | Optical objective system of the gauss type comprising four air-spaced members |
US2683396A (en) * | 1951-04-30 | 1954-07-13 | Schneider Co Optische Werke | Optical objective system of the gauss type comprising five airspaced members |
DE949690C (en) * | 1951-05-01 | 1956-09-27 | Schneider Co Optische Werke | Optical system made up of five elements separated from one another by air gaps |
US2662447A (en) * | 1951-06-21 | 1953-12-15 | Voigtlaender Ag | Modified gauss-type high-speed photographic objective with anastigmatic flattened field |
US2676517A (en) * | 1951-10-29 | 1954-04-27 | Taylor Taylor & Hobson Ltd | Optical objectives comprising six air spaced components enclosing a diaphragm |
US2677989A (en) * | 1952-02-02 | 1954-05-11 | Voigtlaender Ag | Four-component objective of the modified gauss-type |
DE1064251B (en) * | 1952-02-02 | 1959-08-27 | Voigtlaender Ag | Modified Gauss system with anastigmatic image field flattening |
DE1048043B (en) * | 1953-12-03 | 1958-12-31 | Freiberger Praez Smechanik Veb | Photographic lens with two dispersing menisci lying between two converging links |
US2748656A (en) * | 1954-02-12 | 1956-06-05 | Zeiss Carl | Four component gauss type photographic objective |
US2831397A (en) * | 1955-02-15 | 1958-04-22 | Zeiss Carl | Photographic objective |
DE1107414B (en) * | 1955-02-15 | 1961-05-25 | Zeiss Carl Fa | Photographic lens |
DE2315071A1 (en) * | 1973-03-27 | 1974-10-03 | Zeiss Carl Fa | STRONG LENS WITH SHORT SECTION AND COMPACTLY BUILT BACK LINK |
JPS57151910A (en) * | 1981-03-17 | 1982-09-20 | Konishiroku Photo Ind Co Ltd | Xenoter type macrolens |
JPS6161652B2 (en) * | 1981-03-17 | 1986-12-26 | Konishiroku Photo Ind |
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