DE535883C - Photographic system in the manner of a Petzval lens - Google Patents

Photographic system in the manner of a Petzval lens

Info

Publication number
DE535883C
DE535883C DEG76828D DEG0076828D DE535883C DE 535883 C DE535883 C DE 535883C DE G76828 D DEG76828 D DE G76828D DE G0076828 D DEG0076828 D DE G0076828D DE 535883 C DE535883 C DE 535883C
Authority
DE
Germany
Prior art keywords
manner
photographic system
petzval
lens
petzval 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
DEG76828D
Other languages
German (de)
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.)
HUGH IVAN GRAMATZKI
Original Assignee
HUGH IVAN GRAMATZKI
Publication date
Priority to DEG76828D priority Critical patent/DE535883C/en
Application granted granted Critical
Publication of DE535883C publication Critical patent/DE535883C/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 -
    • G02B9/04Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only

Description

Photographisches System nach Art eines Petzval-Objektivs Objektive vom Petzval-Typus mit verkittetem Hinterglied sind bekannt, und zwar auch ein solches, dessen Hinterglied entsprechend dem Erfindungsgegenstande aus drei miteinander verkitteten Linsen besteht. In. diesem bekannten System sind beide Kittflächen des Hintergliedes zerstreuend, so daß eine Verbesserung des Astigmatismus und eine Korrektion der Koma für größere öffnungsverhältnisse nicht möglich ist.Photographic system in the manner of a Petzval lens. Lenses of the Petzval type with cemented hind limb are known, including one the rear part of which is cemented to one another according to the subject matter of the invention from three Lentils. In. This known system is both cemented surfaces of the rear link diffusing, so that an improvement in astigmatism and a correction of the Coma for larger opening ratios is not possible.

Demgegenüber besteht das wesentliche Merkmal des Erfindungsgegenstandes darin, daß in dem hinteren, aus drei verkitteten Linsen bestehenden Gliede ein negativer Meniskus und eine bikonvexe Linse aus hochbrechenden Gläsern einen positiven Meniskus aus einem Glase mit niedriger Brechzahl einschließen, dessen Flächen gegen das Vorderglied zu gewölbt sind.In contrast, there is the essential feature of the subject matter of the invention in the fact that in the posterior limb consisting of three cemented lenses there is a negative one Meniscus and a biconvex lens made of highly refractive glasses form a positive meniscus from a glass with a low refractive index enclose its faces against the fore limb are too curved.

So ist es möglich, durch die sammelnde Kittfläche den Astigmatismus zu vermindern und die Koma trotz kurzer Bauart für das große Öffnungsverhältnis x : i,25 zu beheben und mit einem Restfehler vbn o,2 mm pro hundert Millimeter Brennweite. Bei dieser Lichtstärke ist auch die Kinematographie des Röntgenschattenbildes möglich.So it is possible to reduce the astigmatism through the collecting cement surface to reduce and the coma despite the short design for the large aperture ratio x: i, 25 fix and with a residual vbn 0.2 mm per hundred millimeters of focal length. With this light intensity, the cinematography of the X-ray silhouette is also possible.

In der Abbildung ist ein Ausführungsbeispiel der Erfindung für f - ioo dargestellt. Das Objektiv ist chromatisch für die Wellenlängen 486 und 435 # 9 ,uu korrigiert. Die Daten sind: y1 + %522 d, 31 nr 1,524 z' = 59,0 6o,6 d., 2,2 ytr 1,632 Y = 37,0 267,6 7s + 150,9 di 3,5- nF i,632 v --- 37,0 yti@7 + 3366 d,4 8,0 nr 1,524 v = 59,0 y@!@ + 57,8 d5 i2,o nr 1,621 v --- 56,3 710 -i28,28 Der Abstand a zwischen den beiden Linsensystemen ist 35,5 mm.The figure shows an exemplary embodiment of the invention for f - ioo. The lens is chromatically corrected for the wavelengths 486 and 435 # 9 , if necessary. The data are: y1 +% 522 d, 31 nr 1.524 z '= 59.0 6o, 6 d., 2.2 ytr 1.632 Y = 37.0 267.6 7s + 150.9 di 3.5- nF i, 632 v --- 37.0 yti @ 7 + 3366 d, 4 8.0 1.524 nr v = 59, 0 y @! @ + 57.8 d5 i2, o no 1.621 v --- 56.3 710 -i28.28 The distance a between the two lens systems is 35.5 mm.

Claims (1)

PATENTANSPRUCH: Photographisches System nach Art eines Petzval ' -k-tv-s@ das aus zwei positiv nn Gl iedern besteht, von denen das Hinterglied aus drei miteinander verkitteten Linsen zusammengesetzt ist, dadurch gekennzeichnet, daß in dem hinteren Gliede ein negativer Meniskus und eine bikonvexe Linse aus hochbrechenden Gläsern einen positiven Meniskus aus einem Glase mit niedriger Brechzahl einschließen, dessen Flächen gegen das Vorderglied zu gewölbt sind.PATENT CLAIM: Photographic system in the manner of a Petzval '-k-tv-s @ which consists of two positive nn members, of which the posterior member consists of three together cemented lenses, characterized in that in the rear Divide a negative meniscus and a biconvex lens made of highly refractive glasses include a positive meniscus made from a low refractive index glass, its Surfaces are arched against the foreleg.
DEG76828D Photographic system in the manner of a Petzval lens Expired DE535883C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG76828D DE535883C (en) Photographic system in the manner of a Petzval lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG76828D DE535883C (en) Photographic system in the manner of a Petzval lens

Publications (1)

Publication Number Publication Date
DE535883C true DE535883C (en) 1933-02-04

Family

ID=7136321

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG76828D Expired DE535883C (en) Photographic system in the manner of a Petzval lens

Country Status (1)

Country Link
DE (1) DE535883C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086911B (en) * 1953-11-04 1960-08-11 Paillard Sa Petzval photographic lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086911B (en) * 1953-11-04 1960-08-11 Paillard Sa Petzval photographic lens

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