DE680308C - Light meter for cinema recorders - Google Patents

Light meter for cinema recorders

Info

Publication number
DE680308C
DE680308C DEN41971D DEN0041971D DE680308C DE 680308 C DE680308 C DE 680308C DE N41971 D DEN41971 D DE N41971D DE N0041971 D DEN0041971 D DE N0041971D DE 680308 C DE680308 C DE 680308C
Authority
DE
Germany
Prior art keywords
cinema
exposure meter
cell
recorders
exposure
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
DEN41971D
Other languages
German (de)
Inventor
Georg Kraemer
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.)
Niezoldi & Kraemer GmbH
Original Assignee
Niezoldi & Kraemer 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 Niezoldi & Kraemer GmbH filed Critical Niezoldi & Kraemer GmbH
Priority to DEN41971D priority Critical patent/DE680308C/en
Application granted granted Critical
Publication of DE680308C publication Critical patent/DE680308C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Description

Belichtungsmesser für Kinoaufnahmeapparate Bei Anordnung von Beliichtungsmessern an Kinoaufnahmeapparaten mit Objektivrevolvern oder Objektivschiebern finit mehreren wählweise benutzbaren Objektiven bereitet aus auf der Hand liegenden Gründen die Kupplung der Belichtungsmesser- und Objektivblenden Schwierigkeiten. Diese Schwierigkeiten werden dadurch vermieden, daß ge- mäß, der Erfindung .auf der Objektivträgerplatte ,auch die Zelle des Belichtungsmessers vorgesehen ist und ihr Blendeneinstellring mit der dazugehörigen Einstellmechanik der Ob- jektivblenden derart gekuppelt ist, daß die Blendenringe beim. Objektivwochsel in festem Eingriff bleiben. Die neuartige Konstruktion ist im folgenden beschrieben und auf der Zeichnung dargestellt.Exposure meters for cinema recorders When arranging exposure meters on cinema recorders with objective revolvers or lens slides finitely several optionally usable lenses, the coupling of the exposure meter and lens diaphragms causes difficulties for obvious reasons. These difficulties are avoided by the invention .on the lens supporting plate, the cell is provided ACCORDING of the meter and its associated aperture ring with the adjustment mechanism of the Obwalden jektivblenden is coupled such that the aperture rings upon. Remain firmly engaged lens week. The novel construction is described below and shown on the drawing.

In Fig. i ist ein drehbarer Objektivrevolver darg :estellt. Es ist Teil i das Apparatgehäuse, Teil 2 der Objektivrevo.lver, auf welchen die beiden Objektive 3 und q. aufgesetzt sind. Teil 5 ist die Zelle des Belichtungsmessers, deren Abblendung in bekannter Weise .durch die Einstellräder 9, i o und i i erfolgt.In Fig. I a rotatable nosepiece is darg: estellt. It is Part i the apparatus housing, part 2 the objective revolver on which the two Lenses 3 and q. are put on. Part 5 is the light meter cell, whose dimming takes place in a known manner .by the setting wheels 9, i o and i i.

In Fig.2 ist die gleiche Anordnung auf einer Schieberplatte montiert, welche wahlweise für lotrechte :oder waagerechte Verschiebung angebaut werden kann. Die Platte 6 ist in Fihrungen 7 und 8 verschiebbar. Die übrigen Teile haben gleiche Bezugzeichen wie in Fig. i. Bei Einstellung des Revolvers oder der Schieberplatte macht die auf diesen aufgesetzte Zelle für den Belichtungsmesser alle Bewegungen mit und bleibt auch während dieser Bewegungen mit den gekuppelten Objektiven in festem Eingriff.In Fig. 2 the same arrangement is mounted on a slide plate, which can optionally be added for vertical or horizontal displacement. The plate 6 is displaceable in guides 7 and 8. The other parts are the same Reference symbols as in Fig. I. When setting the turret or the slide plate the cell for the light meter placed on it makes all movements with and remains in during these movements with the coupled lenses fixed engagement.

Claims (1)

hATENTANSYRÜC1iL: i. Belichtungsmesser für Kino!aufnahmLeapparate mit mehreren wahlweise benutzbaren Objektiven. ,auf einem gemeinsamen Träger, dadurch gekennzeichnet, daß auf der Objektivträgerplatte ,auch die Zelle des Belichtungsmessers angebracht und ihr Blendeneinstellring reit demjenigen der Objektive derart gekuppelt ist; daß sie beim Objektiwyechsel in festem Eingriff bleiben. z. Belichtungsmesser nach Anspruch i, dadurch gekennzeichnet, daß der Objektivträger mit der Zelle für den Belichtungs,-m:esser als Revolver ausgebildet ist (Fig. i ). 3. Belichtungsmesser nach Anspruch i; dadurch gekennzeichnet, daß der Objektivträger mit der Zelle für den Belichtungsmesser als lotrecht oder waagerecht verstellbarer Schieber ausgebildet ist.HATENTANSYRÜC1iL: i. Exposure meters for cinema! Recording apparatus with several optionally usable lenses. , on a common carrier, characterized in that on the lens support plate, the cell of the exposure meter is also attached and its aperture setting ring is coupled to that of the lenses in this way; that they remain in firm engagement when changing the object. z. Exposure meter according to claim i, characterized in that the objective carrier with the cell for the exposure meter is designed as a revolver (Fig. I ) . 3. Exposure meter according to claim i; characterized in that the lens carrier with the cell for the exposure meter is designed as a vertically or horizontally adjustable slide.
DEN41971D 1938-05-17 1938-05-17 Light meter for cinema recorders Expired DE680308C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN41971D DE680308C (en) 1938-05-17 1938-05-17 Light meter for cinema recorders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN41971D DE680308C (en) 1938-05-17 1938-05-17 Light meter for cinema recorders

Publications (1)

Publication Number Publication Date
DE680308C true DE680308C (en) 1939-08-26

Family

ID=7348475

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN41971D Expired DE680308C (en) 1938-05-17 1938-05-17 Light meter for cinema recorders

Country Status (1)

Country Link
DE (1) DE680308C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124344B (en) * 1958-03-07 1962-02-22 Contina Ag Motion picture camera with a common holder for at least two lenses of different focal lengths

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124344B (en) * 1958-03-07 1962-02-22 Contina Ag Motion picture camera with a common holder for at least two lenses of different focal lengths

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