DE629930C - Photographic camera with built-in photoelectric light meter - Google Patents

Photographic camera with built-in photoelectric light meter

Info

Publication number
DE629930C
DE629930C DEZ22421D DEZ0022421D DE629930C DE 629930 C DE629930 C DE 629930C DE Z22421 D DEZ22421 D DE Z22421D DE Z0022421 D DEZ0022421 D DE Z0022421D DE 629930 C DE629930 C DE 629930C
Authority
DE
Germany
Prior art keywords
photographic camera
built
viewfinder
light meter
pointer
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
DEZ22421D
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
Publication date
Priority to DEZ22421D priority Critical patent/DE629930C/en
Application granted granted Critical
Publication of DE629930C publication Critical patent/DE629930C/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)

Description

Der Gegenstand der Erfindung bezieht sich auf einen photographischen oder kinematographischen Aufnahmeapparat, bei dem zur Bestimmung der Belichtungszeit ein photoelektrischer Belichtungsmesser im Innern des Apparates eingebaut ist. Es ist bekannt, den Zeiger des photoelektrischen Belichtungsmessers in das Blickfeld des Durchsichtssuchers anzuordnen. Bei der Verwendung optischer Durch-Sichtssucher bereitet die Anordnung der Ableseeinrichtung insofern Schwierigkeiten, als die Skala sich nicht unmittelbar in die Laufbahn des beweglichen Zeigers bringen läßt. Durch den bestehenden Zwischenraum zwischen Skala und Zeiger entstehen, je nachdem die Durchsicht durch den Sucher erfolgt, Differenzen in der Ablesung. Dieser Übelstand wird bei photographischen oder kinematographischen Apparaten dadurch beseitigt, daß man den Zeiger des Meß-The object of the invention relates to a photographic or cinematographic Recording apparatus in which a photoelectric one is used to determine the exposure time Light meter is built into the interior of the apparatus. It is known the pointer of the photoelectric light meter to be arranged in the field of view of the see-through viewfinder. When using optical see-through viewfinder the arrangement of the reading device causes difficulties insofar as the scale is not directly in the career path the movable pointer can bring. Because of the gap between the scale and Pointers arise, depending on the view through the viewfinder, differences in the reading. This disadvantage is caused by photographic or cinematographic apparatus eliminates the need to move the pointer of the measuring

instrumentes bei einem optischen Bildsucher, bei dem das eine Glied aus einer plankonkaven Linse besteht, unmittelbar an der gekrümmten Linsenfläche entlang gleiten läßt, wobei die Ableseskala ebenfalls auf der gekrümmten Fläche der Linse angeordnet ist.instrument in an optical viewfinder, in which the one link from a plano-concave Lens is, can slide along directly on the curved lens surface, the The reading scale is also arranged on the curved surface of the lens.

In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel in Abb. 1 bis 3 dargestellt, bei dem der Zeiger des Meßinstrumentes im Blickfeld eines optischen Bildsuchers angeordnet ist, welcher gleichzeitig mit der Schauöffnung eines Spiegelbasis-Entfernungsmessers zusammenfällt.In the drawing, the invention is shown in one embodiment in Figs. 1 to 3, in which the pointer of the measuring instrument is arranged in the field of view of an optical viewfinder which is at the same time as the viewing port of a mirror base rangefinder coincides.

ι ist die photographische Kamera. 2 und 3 sind die beiden Spiegel des Basis-Entfernungsmessers. 4 und .5 ist der optische Bildsucher. Durch den Krümmungsmittelpunkt der Linse 4 verläuft die Drehachse des Zeigers 5 des Meßinstrumentes 6 des photoelektrischen Belichtungsmessers. Das Meßinstrument 6 befindet sich zweckmäßig unterhalb des Sucherschachtes. Die Ableseskala 8 für· den Zeiger 5 ist auf der konkaven Fläche 7 der Linse 4 angeordnet.ι is the photographic camera. 2 and 3 are the two mirrors of the basic rangefinder. 4 and .5 is the optical viewfinder. Through the center of curvature of the lens 4 runs the axis of rotation of the pointer 5 of the measuring instrument 6 of the photoelectric exposure meter. The measuring instrument 6 is conveniently located below the finder shaft. The reading scale 8 for the pointer 5 is on the concave surface 7 of the lens 4 arranged.

Claims (3)

Patentansprüche:Patent claims: 1. Photographische Kamera mit eingebautem photoelektrischem Belichtungsmesser, bei dem der Zeiger des Meßinstrumentes im Blickfeld des Suchers angeordnet ist, dadurch gekennzeichnet, daß die Drehachse des Zeigers (5) des Belichtungsmessers durch den Krümmungsmittelpunkt der hohlen Fläche der Sucherlinse (4) geht.1. Photographic camera with built-in photoelectric light meter, in which the pointer of the measuring instrument is arranged in the field of view of the viewfinder, thereby characterized in that the axis of rotation of the pointer (5) of the exposure meter passes through the center of curvature of the hollow Area of the viewfinder lens (4) goes. 2. Photographische Kamera nach Anspruch i, dadurch gekennzeichnet, daß die Ableseskala für die Belichtungszeiten auf der Sucherlinse (4), und zwar zweckmäßig auf deren konkaven Fläche, angeordnet ist.2. Photographic camera according to claim i, characterized in that the Reading scale for the exposure times on the viewfinder lens (4), useful on the concave surface thereof. 3. Photographische Kamera nach Anspruch i, dadurch gekennzeichnet, daß das Meßinstrument (6) unterhalb des Suchers angeordnet ist.3. Photographic camera according to claim i, characterized in that the Measuring instrument (6) is arranged below the viewfinder. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEZ22421D Photographic camera with built-in photoelectric light meter Expired DE629930C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ22421D DE629930C (en) Photographic camera with built-in photoelectric light meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ22421D DE629930C (en) Photographic camera with built-in photoelectric light meter

Publications (1)

Publication Number Publication Date
DE629930C true DE629930C (en) 1936-05-15

Family

ID=7625628

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ22421D Expired DE629930C (en) Photographic camera with built-in photoelectric light meter

Country Status (1)

Country Link
DE (1) DE629930C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963375C (en) * 1950-09-02 1957-05-09 Hans Carl Opfermann Electric exposure meter with a measuring mechanism designed as a profile instrument
US3479591A (en) * 1965-09-29 1969-11-18 Simmonds Precision Products Indicator housing with a pointer driving means having a front face concave scale member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963375C (en) * 1950-09-02 1957-05-09 Hans Carl Opfermann Electric exposure meter with a measuring mechanism designed as a profile instrument
US3479591A (en) * 1965-09-29 1969-11-18 Simmonds Precision Products Indicator housing with a pointer driving means having a front face concave scale member

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