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DE1117381B - Camera with exposure controller - Google Patents

Camera with exposure controller

Info

Publication number
DE1117381B
DE1117381B DEG22844A DEG0022844A DE1117381B DE 1117381 B DE1117381 B DE 1117381B DE G22844 A DEG22844 A DE G22844A DE G0022844 A DEG0022844 A DE G0022844A DE 1117381 B DE1117381 B DE 1117381B
Authority
DE
Germany
Prior art keywords
aperture
measuring mechanism
cables
diaphragm
camera
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.)
Pending
Application number
DEG22844A
Other languages
German (de)
Inventor
Otto Nette
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.)
P Gossen and Co GmbH
Original Assignee
P Gossen and Co 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 P Gossen and Co GmbH filed Critical P Gossen and Co GmbH
Priority to DEG22844A priority Critical patent/DE1117381B/en
Publication of DE1117381B publication Critical patent/DE1117381B/en
Pending 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
    • G03B7/081—Analogue circuits
    • G03B7/085—Analogue circuits for control of aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)

Description

Kamera mit Belichtungsregler Es sind fotoelektrische Belichtungsregler für Aufnahmekameras jeglicher Art bekannt, bei denen die Blendenlamellen jeweils am Ende eines doppelarmigen Hebels angebracht sind und direkt vom Meßwerk des Belichtungsmessers über Seilzüge betätigt werden.Camera with exposure controller They are photoelectric exposure controllers known for recording cameras of any kind, in which the aperture blades each are attached at the end of a double-armed lever and directly from the measuring mechanism of the light meter be operated via cables.

Die im folgenden beschriebene Erfindung bezieht sich nun darauf, mit Hilfe besonders einfacher Mittel die Charakteristik von Fotoelement und Meßwerk dem Verhältnis der Blendenhebelarme zueinander und der tatsächlichen Größe der jeweiligen Blendenöffnung anzupassen. Dies wird erfindungsgemäß dadurch erreicht, daß die Seilzüge sowohl an den Blendenhebeln wie auch an der Drehspule des Meßwerks über entsprechend geformte Leitbleche geführt werden.The invention described below now relates to Using particularly simple means, the characteristics of the photo element and measuring mechanism the ratio of the shutter lever arms to each other and the actual size of each Adjust aperture. This is achieved according to the invention in that the cables on the diaphragm levers as well as on the moving coil of the measuring mechanism shaped baffles are guided.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt.An embodiment of the invention is shown schematically in the drawing shown.

Im oder am nicht mitgezeichneten Kameraverschluß sind die beiden zweiarmigen Hebel 1 und 2 aus leichtem Flachmaterial um die Spitzen 3 und 4 leicht drehbar gelagert. Ihre gekreuzten unteren Enden 5 und 6 bilden zusammen eine Zweischeibenblende, die in der gezeichneten Stellung ihre größte Öffnung besitzt.The two two-armed shutters are in or on the camera shutter, which is not shown Lever 1 and 2 made of light flat material, mounted around tips 3 and 4 so that they can easily be rotated. Their crossed lower ends 5 and 6 together form a double-pane diaphragm, the has its largest opening in the position shown.

An den oberen Hebelenden sind die kurvenförmigen Leitbleche 7 und 8 angebracht, an deren nach außen gerichteten Enden jeweils ein Seilzug 9 und 10 aus dünnem und biegsamem Material befestigt ist. Diese Seilzüge sind mit ihren anderen Enden an zwei weiteren kurvenförmigen Leitblechen 11 und 12 befestigt, die am Rähmchen 13 des Belichtungsmessermeßwerks angebracht sind.At the upper ends of the lever are the curved guide plates 7 and 8 attached, at the outwardly directed ends of each a cable 9 and 10 made of thin and flexible material. These cables are with their others Ends of two other curved guide plates 11 and 12 attached to the frame 13 of the light meter measuring mechanism are attached.

Am letzteren befindet sich außerdem noch der Zeiger 14, dessen abgeknöpftes Ende über der Skala 15 spielt, die mit den Werten der Blendenöifnungen versehen ist.On the latter there is also the pointer 14, its unbuttoned End over the scale 15 plays, which are provided with the values of the diaphragm openings is.

In der gezeichneten Stellung befindet sich die gesamte Anordnung bei geöffneter Blende in Ruhestellung. Dieses wird dadurch bewirkt, daß die Federdrehmomente der Stromzuführungsfedern 16 und 17 am Drehspulrähmchen und die entgegengesetzten Momente der Rückholfedern 18 und 19 an den Drehpunkten der Blendenhebel einander aufheben.In the position shown, the entire arrangement is in the rest position with the aperture open. This is caused by the fact that the spring torques of the power supply springs 16 and 17 on the winding frame and the opposite moments of the return springs 18 and 19 at the pivot points of the diaphragm lever cancel each other out.

Wird dem Drehspulrähmchen 13 ein dem Lichteinfall auf das nicht mitgezeichnete Fotoelement proportionaler Fotostrom zugeführt, so dreht es sich in Richtung des Pfeiles 20. Dadurch wickeln sich die Seilzüge 9 und 10 auf den entsprechenden Leitblechen auf und drehen dabei die Hebel l und 2 so, daß sich die Blendenscheiben 5 und 6 einander nähern und somit die Blendenöffnung kleiner wird.If the moving coil frame 13 is the incidence of light on the not shown Photo element supplied with proportional photo current, so it rotates in the direction of the Arrow 20. As a result, the cables 9 and 10 wind on the corresponding guide plates and turn the levers l and 2 so that the diaphragm disks 5 and 6 approach each other and thus the aperture becomes smaller.

Die Kurvenform der Leitbleche 7 und 8 bzw. 11 und 12 richtet sich sowohl nach der Charakteristik von Fotoelement und Anzeigemeßwerk wie auch nach dem Verhältnis der Hebelarme zueinander und zur Größe der tatsächlichen Öffnung der Blende.The curve shape of the guide plates 7 and 8 or 11 and 12 is directed both according to the characteristics of the photo element and display measuring mechanism as well as according to the ratio of the lever arms to each other and the size of the actual opening the aperture.

Claims (1)

PATENTANSPRUCH: Anordnung zur Blendenverstellung bei Kameras jeglicher Art, bei denen die Blendenlamellen jeweils am Ende eines doppelarmigen, spitzengelagerten Hebels angebracht sind und direkt vom Meßwerk des Belichtungsmessers über Seilzüge betätigt werden, dadurch gekennzeichnet, daß die Seilzüge an den Blendenhebeln und auch an der Drehspule des Meßwerks über kurvenförmige Leitbleche geführt werden, deren Form sowohl von der Charakteristik von Fotoelement und Meßwerk wie auch von dem Verhältnis der Blendenhebelarme zueinander und der tatsächlichen Größe der jeweils einzustellenden Blendenöffnung bestimmt wird. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 216 966; USA: Patentschriften Nr. 2 013 362, 2 206 086, 2209639. PATENT CLAIM: Arrangement for diaphragm adjustment in cameras of any kind, in which the diaphragm blades are each attached to the end of a double-armed, pointed lever and are operated directly from the meter of the exposure meter via cables, characterized in that the cables on the aperture levers and also on the rotating coil of the Measuring mechanism are guided over curved guide plates, the shape of which is determined both by the characteristics of the photo element and measuring mechanism as well as by the ratio of the aperture lever arms to one another and the actual size of the aperture to be set in each case. Documents considered: Swiss Patent No. 216 966; USA: Patent Nos. 2,013,362, 2,020,086, 2209639.
DEG22844A 1957-08-31 1957-08-31 Camera with exposure controller Pending DE1117381B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG22844A DE1117381B (en) 1957-08-31 1957-08-31 Camera with exposure controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG22844A DE1117381B (en) 1957-08-31 1957-08-31 Camera with exposure controller

Publications (1)

Publication Number Publication Date
DE1117381B true DE1117381B (en) 1961-11-16

Family

ID=7122043

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG22844A Pending DE1117381B (en) 1957-08-31 1957-08-31 Camera with exposure controller

Country Status (1)

Country Link
DE (1) DE1117381B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013362A (en) * 1935-09-03 Automatic diaphragm
US2206086A (en) * 1939-03-09 1940-07-02 Eastman Kodak Co Camera lens diaphragm
US2209639A (en) * 1938-12-08 1940-07-30 Tonnies Hans Ferdinand Camera diaphragm
CH216966A (en) * 1939-04-28 1941-09-30 Zeiss Ikon Ag Camera with lens diaphragm moved by the power fluctuations of a photocell.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013362A (en) * 1935-09-03 Automatic diaphragm
US2209639A (en) * 1938-12-08 1940-07-30 Tonnies Hans Ferdinand Camera diaphragm
US2206086A (en) * 1939-03-09 1940-07-02 Eastman Kodak Co Camera lens diaphragm
CH216966A (en) * 1939-04-28 1941-09-30 Zeiss Ikon Ag Camera with lens diaphragm moved by the power fluctuations of a photocell.

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