DE824558C - Mirror lens lens - Google Patents

Mirror lens lens

Info

Publication number
DE824558C
DE824558C DEL3689A DEL0003689A DE824558C DE 824558 C DE824558 C DE 824558C DE L3689 A DEL3689 A DE L3689A DE L0003689 A DEL0003689 A DE L0003689A DE 824558 C DE824558 C DE 824558C
Authority
DE
Germany
Prior art keywords
mirror
lens
mirror lens
lens objective
focal length
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
DEL3689A
Other languages
German (de)
Inventor
Walter Mandler
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 DEL3689A priority Critical patent/DE824558C/en
Application granted granted Critical
Publication of DE824558C publication Critical patent/DE824558C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0884—Catadioptric systems having a pupil corrector
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0804—Catadioptric systems using two curved mirrors
    • G02B17/0808—Catadioptric systems using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0852—Catadioptric systems having a field corrector only

Landscapes

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

Description

Die Erfindung betrifft ein Spiegellinsen-Objektiv, insbesondere für photographische Zwecke mit einer großen Brennweite f. Beispielsweise ist f = 6oo mm, das Öffnungsverhältnis 1: 5, die Schnittweite mindestens 113 mm und der nutzbare Bildwinkel 4°.The invention relates to a mirror lens objective, in particular for photographic purposes, with a large focal length f. For example, f = 600 mm, the aperture ratio 1: 5, the focal length at least 113 mm and the usable image angle 4 °.

Es ist bekannt, daß man das zur Behebung der dem sphärischen Spiegel anhaftenden Bildfehler häufig verwendete Korrektionselement nach Schmidt ersetzt durch ein aus sphärischen Flächen gebildetes Element. In der schweizerischen Patentschrift 255 151 ist ein derartiges Objektiv beschrieben, bei dem vor den sphärischen Spiegel ein Korrektionselement gestellt ist, das aus einem Meniskus und einer Positivlinse besteht, die beide aus der gleichen Glassorte gebildet sind und zusammen eine schwache positive Brechkraft ergeben. Wenn diese Brechkräfte klein genug sind, läßt sich erreichen, daß auch bei Verwendung nur einer Glassorte die chromatische Fehlerfreiheit des Spiegels fast ganz erhalten bleibt.It is known that one can do this to fix the spherical mirror Adhering image errors frequently used correction element after Schmidt replaced by an element formed from spherical surfaces. In the Swiss patent specification 255 151 such an objective is described in which in front of the spherical mirror a corrective element is provided, which consists of a meniscus and a positive lens consists, both of which are made of the same type of glass and together a weak one result in positive refractive power. If these refractive powers are small enough, can achieve that even if only one type of glass is used, there is no chromatic error of the mirror is almost completely preserved.

Die Erfindung hat zur Aufgabe, diese bekannten Mittel für ein Objektiv Cassegrainscher Bauart nutzbar zu machen. Sie besteht darin, daß in einem solchen Objektiv zwei aus je zwei nahe beieinanderstehenden sphärischen Linsen gebildete Korrektionselemente angeordnet sind, deren eines im Strahlengang vor dem sammelnden, deren anderes hinter dem streuenden Spiegel steht, daß ferner jedes der Korrektionselemente die Brechkraft Null h4t und daß alle Linsen aus der gleichen Glassorte bestehen. Insbesondere besteht die Erfindung ferner aus den in den Ansprüchen 2 und 3 angegebenen durchgerechneten Exemplaren, die im einzelnen für andere Brennweiten und Glassorten umgerechnet werden können.The invention has for its object these known means for an objective To make Cassegrain design usable. It consists in that in such a Objective two formed from two spherical lenses each close to one another Correction elements are arranged, one of which is in the beam path in front of the collecting, whose other is behind the diffusing mirror, that furthermore each of the correction elements the refractive power is zero and that all lenses consist of the same type of glass. In particular, the invention also consists of those specified in claims 2 and 3 calculated specimens, in detail for other focal lengths and types of glass can be converted.

In der Zeichnung sind zwei Ausführungen der Erfindung entsprechend den Daten, die in den Ansprüchen 2 und 3 angegeben sind, dargestellt.In the drawing, two embodiments of the invention are corresponding the data given in claims 2 and 3.

Fig. i betrifft das Exemplar nach Anspruch 2; Fig. 2 betrifft das Exemplar nach Anspruch 3.Fig. I relates to the specimen according to claim 2; Fig. 2 relates to this Copy according to claim 3.

Mit i und 2 sind die beiden Spiegel bezeichnet, das erste Korrektionselement besteht aus dem Meniskus 3 und der Linse 4, das zweite Korrektionselement aus den Linsen 5 und 6. Mit 7 sind Blendenkörper bezeichnet, welche den Durchtritt unerwünschten Lichtes verhindern. Die Bildebene ist mit 8 bezeichnet.The two mirrors are designated by i and 2, the first correction element consists of the meniscus 3 and the lens 4, the second correction element of the Lenses 5 and 6. With 7 diaphragm bodies are designated, which the passage undesirable Prevent light. The image plane is denoted by 8.

Claims (3)

PATENTANSPRCCHE: i. Spiegellinsen-Objektiv Cassegrainccher Bauart mit sphärischen Spiegeln, dadurch gekennzeichnet, daß zwei aus je zwei nahe beieinander stehenden sphärischen Linsen gebildete Korrektionselemente vorgesehen sind, deren eines vor dem sammelnden, deren anderes hinter dem streuenden Spiegel steht, daß ferner jedes Korrektionselement die Brechkraft Null hat und daß alle Linsen aus gleicher Glassorte bestehen. CLAIMS: i. Cassegrain-type mirror lens objective with spherical mirrors, characterized in that two out of two close together standing spherical lenses formed correction elements are provided one in front of the collecting, the other behind the diffusing mirror, that furthermore, each correction element has the refractive power zero and that all lenses are off consist of the same type of glass. 2. Spiegellinsen-Objektiv nach Anspruch i, gekennzeichnet durch folgende Daten: Dicken Abstände r, = + 659,1 d, = 13,6 r._ bis r.; = 15,7 r2 = + 1669,7 dz = i1,5 r4 - r,; = 9,4 r3 = - 296,1 d:, = 4,2 r,, - r,; = 125,5 r4 = - 413,6 d, = 6,3 r, - r-, = 134,9 r:, = - 4442 r,., - r; = 125,5 r,; = - 307,6 r., - r" = 3,1 r7 = + 104,6 rn = -1- 81,6 r,, = + 221,8 rio = + 429,8 n = 1,5141/64, f = 6oo mm, Schnittweite = 123 mm, Öffnungsverhältnis _-_ i : 5, Bildwinkel = 4°.
2. mirror lens objective according to claim i, characterized by the following data: Thick spaces r, = + 659.1 d, = 13.6 r._ to r .; = 15.7 r2 = + 1669.7 dz = i1.5 r4 - r ,; = 9.4 r3 = - 296.1 d: = 4.2 r ,, - r ,; = 125.5 r4 = - 413.6 d, = 6.3 r, - r-, = 134.9 r :, = - 4442 r,., - r; = 125.5 r ,; = - 307.6 r., - r "= 3.1 r7 = + 104.6 rn = -1- 81.6 r ,, = + 221.8 rio = + 429.8 n = 1.5141 / 64, f = 600 mm, Back focal length = 123 mm, Focal ratio _-_ i: 5, Angle of view = 4 °.
3. Spiegellinsen-Objektiv nach Anspruch i, gekennzeichnet durch folgende Daten: Dicken Abstände r, _ +476,9 d, = 13,6 r2 bis r3 = 21,0 r2 = + 712,6 d._ = 12,6 r, - rf, = o r3 = -249,3 4 = 4,2 r. - r,; = 125,8 r4 = -308,1 d, = 6,3 r4 - y; = 125,8 r@ _ -444,9 r'; - rs = 125,8 r,; _ - 3o8,1 r,, - r" = 3,1 r; _ -+- 104,8 r4 = + 81,7 rs, _ + 209,4 r,o = + 402,1 n = 1,514/64, f = 6oo mm, Schnittweite = 121,75, Offnungsverhältnis = 1 : 5, Bildwinkel = 4°.
3. mirror lens objective according to claim i, characterized by the following data: Thick spaces r, _ +476.9 d, = 13.6 r2 to r3 = 21.0 r2 = + 712.6 d._ = 12.6 r, - rf, = o r3 = -249.3 4 = 4.2 r. - r ,; = 125.8 r4 = -308.1 d, = 6.3 r4 - y; = 125.8 r @ _ -444.9 r '; - rs = 125.8 r ,; _ - 3o8.1 r ,, - r "= 3.1 r; _ - + - 104.8 r4 = + 81.7 rs, _ + 209.4 r, o = + 402.1 n = 1.514 / 64, f = 600 mm, Back focal length = 121.75, Opening ratio = 1: 5, Angle of view = 4 °.
DEL3689A 1950-09-12 1950-09-12 Mirror lens lens Expired DE824558C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL3689A DE824558C (en) 1950-09-12 1950-09-12 Mirror lens lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL3689A DE824558C (en) 1950-09-12 1950-09-12 Mirror lens lens

Publications (1)

Publication Number Publication Date
DE824558C true DE824558C (en) 1951-12-13

Family

ID=7256296

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL3689A Expired DE824558C (en) 1950-09-12 1950-09-12 Mirror lens lens

Country Status (1)

Country Link
DE (1) DE824558C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701983A (en) * 1953-11-25 1955-02-15 Back Catadioptric telephoto systems
DE936424C (en) * 1952-05-29 1955-12-15 Askania Werke Ag Mirror lens objective, especially for X-ray screen photography
US2730926A (en) * 1954-08-25 1956-01-17 Back Frank Gerard Catadioptric telephoto objective systems
US2748658A (en) * 1951-12-29 1956-06-05 Optische Ind De Oude Delft Nv Tele-objective of the catadioptric type
US2793564A (en) * 1952-04-29 1957-05-28 Optische Ind De Oude Delft Nv Optical image forming lens and mirror system comprising a spherical mirror and two meniscus corrector lenses
DE1184112B (en) * 1960-07-01 1964-12-23 Farrand Optical Co Inc Mirror-lens system of the CASSEGRAIN design
DE1199515B (en) * 1961-12-23 1965-08-26 Rodenstock Optik G Mirror lens
DE2157058A1 (en) * 1971-11-17 1973-05-24 Zeiss Carl Fa MIRROR LENS LENS FOR AN IMAGE WITH A COMMON OBJECT AND IMAGE SIDE
DE102010029062A1 (en) * 2010-05-18 2011-11-24 Carl Zeiss Ag Optical system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748658A (en) * 1951-12-29 1956-06-05 Optische Ind De Oude Delft Nv Tele-objective of the catadioptric type
US2793564A (en) * 1952-04-29 1957-05-28 Optische Ind De Oude Delft Nv Optical image forming lens and mirror system comprising a spherical mirror and two meniscus corrector lenses
DE936424C (en) * 1952-05-29 1955-12-15 Askania Werke Ag Mirror lens objective, especially for X-ray screen photography
US2701983A (en) * 1953-11-25 1955-02-15 Back Catadioptric telephoto systems
US2730926A (en) * 1954-08-25 1956-01-17 Back Frank Gerard Catadioptric telephoto objective systems
DE1184112B (en) * 1960-07-01 1964-12-23 Farrand Optical Co Inc Mirror-lens system of the CASSEGRAIN design
DE1199515B (en) * 1961-12-23 1965-08-26 Rodenstock Optik G Mirror lens
DE2157058A1 (en) * 1971-11-17 1973-05-24 Zeiss Carl Fa MIRROR LENS LENS FOR AN IMAGE WITH A COMMON OBJECT AND IMAGE SIDE
DE102010029062A1 (en) * 2010-05-18 2011-11-24 Carl Zeiss Ag Optical system
GB2482041B (en) * 2010-05-18 2013-09-18 Zeiss Carl Optronics Gmbh Optical system
DE102010029062B4 (en) * 2010-05-18 2020-02-20 Carl Zeiss Ag Optical system, data transmission system and system for the acquisition of electromagnetic radiation

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