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DE3304115A1 - Pivotable lens tube for miniature camera and half-plate camera systems - Google Patents

Pivotable lens tube for miniature camera and half-plate camera systems

Info

Publication number
DE3304115A1
DE3304115A1 DE19833304115 DE3304115A DE3304115A1 DE 3304115 A1 DE3304115 A1 DE 3304115A1 DE 19833304115 DE19833304115 DE 19833304115 DE 3304115 A DE3304115 A DE 3304115A DE 3304115 A1 DE3304115 A1 DE 3304115A1
Authority
DE
Germany
Prior art keywords
lens
camera
lens tube
plate
camera systems
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.)
Withdrawn
Application number
DE19833304115
Other languages
German (de)
Inventor
Thomas 7554 Kuppenheim Fiege
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19833304115 priority Critical patent/DE3304115A1/en
Publication of DE3304115A1 publication Critical patent/DE3304115A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/06Swinging lens about normal to the optical axis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

The pivotable lens tube connects the lens to the camera housing, doing so as an integrated component or as an attachment. It consists of a tube section, which is cut obliquely relative to the longitudinal axis and can be recombined in such a way that both parts can be rotated with respect to one another in the sectional plane. The result of this is to enable the lens to be pivoted out of the normal optical axis and thus to influence the zone of the depth of field in the imaging. In connection with a device which permits the lens to be displaced parallel to the image plane, a device is produced which permits functions of mechanically and structurally complicated studio cameras to be transferred in a convenient and economic way to miniature camera and half-plate camera systems.

Description

Schwenkbarer Ob jektivtubus Swiveling lens barrel

Die Erfindung betrifft einen schwenkbaren Objektivtubus, der als integriertes oder zusätzliches Verbindungsglied zwischen Objektiv und Kameragehäuse dient. The invention relates to a pivotable lens barrel as integrated or additional connecting link between lens and camera housing serves.

Im allgemeinen wird der Objektivtubus nur in seiner Länge veränderbar ausgebildet, um die Entfernungseinstellung des Objektivs vornehmen oder den Vergrößerungsmaßstab der Abbildung verändern zu können, während er quer zu seiner Achse starr ausgebildet ist und dadurch das Objektiv lichtdicht und fest in der optischen Achse des Kamerasystems hält. Der Tubus unterscheidet sich somit vom Balgen, der in Richtung und quer zu seiner Längsachse flexibel ist und zur Erfüllung seiner Trag- und Einstellfunktionen tragfähiger und verstellbarer Hilfskonstruktionen bedarf. Bei entsprechender Ausbildung dieser Konstruktionen läßt sich das Objektiv parallel zur Bildebene des fotographischen Apparats verschieben und aus seiner optischen Achse herausschwenken, was ersteres zur Beeinflussung der Perspektive, letzteres zur Veränderung der Schärfentiefezone in der Abbildung dient. In general, the lens barrel can only be changed in length designed to adjust the distance of the lens or the magnification to be able to change the figure while it is rigid transversely to its axis and thereby the lens is light-tight and fixed in the optical axis of the camera system holds. The tube thus differs from the bellows, which are directed towards and across its longitudinal axis is flexible and to fulfill its support and adjustment functions stable and adjustable auxiliary structures are required. With appropriate training These constructions allow the lens to be parallel to the image plane of the photographic Move the apparatus and swing it out of its optical axis, what the former to influence the perspective, the latter to change the depth of field in the figure is used.

Großformatige Studiokameras weisen diese Konstruktionsmerkmale auf und verdanken ihnen ihre universelle Verstellbarkeit. Bei entsprechender Miniaturisierung lassen sich auch Balgengeräte als Zubehör für Kamerasysteme des Mittel-und des Kleinbildformats konstruieren, die diese Verstelimöglichkeiten bieten. Diese weisen allerdings einen annähernd so hohen konstruktiven und mechanischen Aufwand wie die großen Studiokameras auf, sind daher teuer in der Uerstellung und lassen sich nur mit Hilfe von Stativen verwenden. Ihre Unhandlichkeit hebt somit den Vorteil größerer Beweglichkeit der Mittelformat- und Kleinbildkameras wieder auf. Large format studio cameras have these design features and owe them their universal adjustability. With appropriate miniaturization Bellows devices can also be used as accessories for camera systems of medium and small format construct that offer these adjustment possibilities. However, these have one almost as high construction and mechanical effort as the large studio cameras on, are therefore expensive to produce and can only be set with the help of tripods use. Their unwieldiness thus highlights the advantage of greater mobility of the Medium format and 35mm cameras on again.

Es stellt sich daher die Aufgabe, eine Vorrichtung zu entwickeln, die mit geringerem konstruktiven und mechanischen Aufwand, unter Bewahrung der größeren Beweglichkeit von Mit telformat- und Kleinbildkamerasystemen, dennoch die oben genannten Verstellmöglichkeiten, also zu der in Shiftobjektiven realisierten bildparallnlen Verschiebbarkeit zusätzlich das Schwenken des Objektivs aus der normalen optischen Achse des fotographischen ApDarats ermöglicht. The task is therefore to develop a device those with less constructive and mechanical effort, while preserving the larger ones Mobility of medium format and 35mm camera systems, but the above Adjustment options, i.e. to the image parallel realized in shift lenses Movability in addition, the pivoting of the lens from the normal optical Axis of the photographic ApDarat enabled.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daßdas Verbindungsglied zwischen dem Kameragehäuse und'dem Objektiv, der oben genannte Objektivtubus folgendermaßen hergestellt wird: Ein Rohr mit jeweils senkrecht zur Rohrachse stehenden Endflächen wird durch einen Schnitt schräg zur Rohrachse in zwei Teile geteilt, die jeweiligen Schnittflächen werden mit kreisförmigen Abschlußringen' versehen und mit einem Halterungsring gegeneinander dreh- wie arretierbar zusammengehalten. Das eine Rohrteil wird an seinem freien Ende an der Kamera befestigt, das andere Rohrteil trägt das Objektiv. This object is achieved according to the invention in that the connecting member between the camera body and the lens, the above-mentioned lens barrel as follows is produced: A pipe with end faces perpendicular to the pipe axis is divided into two parts by a cut at an angle to the pipe axis, the respective ones Cut surfaces are provided with circular end rings and a retaining ring held together so that they can be rotated and locked against each other. One pipe part is on its free end is attached to the camera, the other tube part carries the lens.

Durch Verdrehen eines Rohrteils gegen das andere schwenkt das Objektiv aus der Normallage heraus und wird um einen Winkel gekippt, der sich aus dem Grad der Drehung und dem Neigungswinkel der Schnittfläche ergibt. Eine Vierteldrehung verursacht einen Schwenk des Objektivs um den Betrag des Neigungswinkels der Schnittfläche, eine halbe Drehung entspricht dem doppelten Betrag des Neigungswinkels der Schnittfläche.By turning one tube part against the other, the lens swivels out of the normal position and is tilted by an angle that results from the degree the rotation and the angle of inclination of the cut surface. A quarter turn causes the lens to pivot by the amount of the inclination angle of the cutting surface, half a turn corresponds to twice the amount of the angle of inclination of the cut surface.

Somit wird die Tragfunktion und die Forderung, das Objektiv aus der normalen optischen Achse des fotographischen apparats herausschwenken zu können, von einem einzigen Bauglied erfüllt. Der reduzierte konstruktive und mechanische Aufwand führt zu einer handlicheren Lösung und vergrößert den Einsatzbereich von Kamerasystemen des Mittel- und Kleinbildformats zu wirtschaftlicheren Bedingungen als die bisher hierfür angewendeten Balgengeräte. Thus, the carrying function and the requirement to remove the lens from the to be able to pivot out the normal optical axis of the photographic apparatus, filled with a single component. The reduced constructive and mechanical Effort leads to a more manageable solution and increases the area of application of Camera systems of the medium and small picture format under more economical conditions than the bellows devices previously used for this purpose.

+.^ Als AusfiIhrungsbeisiel für die im Patentanspruch genannten Anwendungsmöglichkeiten der Erfindung wird im folgenden ein Zwischenring mit den beschriebenen Merkmalen, der als Zubehör für Kleinbildkamerasysteme konzipiert ist, dargestellt, - Leerseite - +. ^ As AusfiIhrungsbeisiel for the application possibilities mentioned in the claim the invention is an intermediate ring with the features described below, which is designed as an accessory for 35mm camera systems is shown, - Blank page -

Claims (1)

Schwenkbarer Ob3ektivtubus,. der als einem fotographischen Apparat oder einer Objektivkonstruktion integriertes oder zusätzliches Verbindungsglied zwischen Objektiv und Kameragehäuse dadurch gekennzeichnet ist, daß er aus einem in zwei Teile geschnittenen Rohrstück besteht, dessen beide Teile in der Schnittfläche, die nicht senkrecht sondern schräg zur Längsachse des Rohres liegt, gegeneinander verdrehbar verbunden sind. Swiveling lens tube. as a photographic apparatus or an integrated or additional connecting element in a lens construction between lens and camera body is characterized in that it consists of one consists of a piece of pipe cut in two parts, the two parts of which in the cut surface, which is not perpendicular but inclined to the longitudinal axis of the pipe, against each other are rotatably connected.
DE19833304115 1983-02-08 1983-02-08 Pivotable lens tube for miniature camera and half-plate camera systems Withdrawn DE3304115A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833304115 DE3304115A1 (en) 1983-02-08 1983-02-08 Pivotable lens tube for miniature camera and half-plate camera systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833304115 DE3304115A1 (en) 1983-02-08 1983-02-08 Pivotable lens tube for miniature camera and half-plate camera systems

Publications (1)

Publication Number Publication Date
DE3304115A1 true DE3304115A1 (en) 1984-08-09

Family

ID=6190218

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833304115 Withdrawn DE3304115A1 (en) 1983-02-08 1983-02-08 Pivotable lens tube for miniature camera and half-plate camera systems

Country Status (1)

Country Link
DE (1) DE3304115A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359193A1 (en) * 2003-12-17 2005-07-28 Hella Kgaa Hueck & Co. Camera arrangement and method for adjusting a camera arrangement
US7800680B2 (en) 2003-10-07 2010-09-21 Lensbabies, Llc Flexible lens mount system for rapid tilt photography
US8075201B2 (en) 2006-08-30 2011-12-13 Lensbaby, Llc Movable lens systems and associated methods
DE102016121646B3 (en) 2016-11-11 2018-04-26 Jos. Schneider Optische Werke Gmbh Adapter for pivoting a lens
EP4564090A1 (en) * 2023-12-01 2025-06-04 Institut National Polytechnique de Toulouse Compact adjustment device for an optical lens of a camera for a scheimpflug application

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7800680B2 (en) 2003-10-07 2010-09-21 Lensbabies, Llc Flexible lens mount system for rapid tilt photography
US8289436B2 (en) 2003-10-07 2012-10-16 Lensbaby, Llc Flexible lens mount system for rapid tilt photography
US8773571B2 (en) 2003-10-07 2014-07-08 Lensbaby, Inc. Flexible lens mount system for rapid tilt photography
DE10359193A1 (en) * 2003-12-17 2005-07-28 Hella Kgaa Hueck & Co. Camera arrangement and method for adjusting a camera arrangement
US7817205B2 (en) 2003-12-17 2010-10-19 Hella Kgaa Camera array and method for adjusting a lens with respect to the image sensor
US8075201B2 (en) 2006-08-30 2011-12-13 Lensbaby, Llc Movable lens systems and associated methods
DE102016121646B3 (en) 2016-11-11 2018-04-26 Jos. Schneider Optische Werke Gmbh Adapter for pivoting a lens
WO2018087170A1 (en) 2016-11-11 2018-05-17 Jos. Schneider Optische Werke Gmbh Adapter for pivoting a lens
US10560619B2 (en) 2016-11-11 2020-02-11 Jos. Schneider Optische Werke Gmbh Adapter for pivoting a lens
EP4564090A1 (en) * 2023-12-01 2025-06-04 Institut National Polytechnique de Toulouse Compact adjustment device for an optical lens of a camera for a scheimpflug application

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