DE1089259B - A rangefinder for photographic cameras with a mirrored image field delimitation frame combined with an exposure meter - Google Patents
A rangefinder for photographic cameras with a mirrored image field delimitation frame combined with an exposure meterInfo
- Publication number
- DE1089259B DE1089259B DEK32606A DEK0032606A DE1089259B DE 1089259 B DE1089259 B DE 1089259B DE K32606 A DEK32606 A DE K32606A DE K0032606 A DEK0032606 A DE K0032606A DE 1089259 B DE1089259 B DE 1089259B
- Authority
- DE
- Germany
- Prior art keywords
- rangefinder
- image field
- photographic cameras
- exposure meter
- frame combined
- 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
Links
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
- G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera
-
- 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
- G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
Description
Die Erfindung betrifft einen mit einem Belichtungsmesser vereinigten Meßsucher für fotografische Kameras mit eingespiegeltem Bildfeldbegrenzungsrahmen, wobei objektseitig vor dem Ablenkspiegel eine Maske vorgesehen ist, in welcher sowohl der Bildbegrenzuügsrahmen als auch eine Öffnung für den Entfernungsmesserstrahlengang angeordnet sind. Eine derartige Einrichtung bei Kameras ist bekannt, jedoch insofern mit Nachteilen verbunden, als sie verhältnismäßig viel Raum und eine Anzahl Fenster im Kameragehäuse erfordert, wodurch die Unterbringung der Einrichtung bei kleineren Kameras auf Schwierigkeiten stößt.The invention relates to a range finder for photographic cameras combined with an exposure meter with reflected image field delimitation frame, with a mask on the object side in front of the deflecting mirror is provided in which both the picture frame and an opening for the range finder beam path are arranged. Such a device for cameras is known, but to this extent associated with disadvantages as they have a relatively large amount of space and a number of windows in the camera body requires, making it difficult to accommodate the device with smaller cameras.
Diese Nachteile werden durch die Erfindung dadurch beseitigt, daß die Maske als Fotozelle ausgebildet ist,These disadvantages are eliminated by the invention in that the mask is designed as a photocell is,
Durch die Ausbildung der Maske als Fotozelle werden nur noch zwei Fenster im Kameragehäuse und dementsprechend weniger Raum als bisher benötigt.By designing the mask as a photocell, only two windows are left in the camera housing and accordingly, less space is required than before.
Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in den Figuren dargestellt. Es zeigtAn exemplary embodiment of the subject matter of the invention is shown in the figures. It shows
Fig. 1 einen mit einem Belichtungsmesser vereinigten Meßsucher im Längsschnitt,1 shows a range finder combined with an exposure meter in longitudinal section,
Fig. 2 ein Belichtungsmesserfenster in Ansicht undFig. 2 is a light meter window in elevation and
Fig. 3 ein Fotoelement mit entsprechender Aussparung für Entfernungsmesserdurchblick und Leuchtrahmen. 3 shows a photo element with a corresponding cutout for the rangefinder view and light frame.
Mit 1 ist das Fenster des Belichtungsmessers bezeichnet, das als Gitterlinse ausgebildet ist und in der Mitte eine Planfläche 1 α aufweist, die unverzerrtes Durchtreten einfallender Bildstrahlen gestattet. Mit 2 ist die dahinterliegende Gitterblende bezeichnet, die in Verbindung mit der Gitterlinse dem Zweck dient, nur vom Aufnahmeobjekt kommendes Licht zum Fotoelement zu leiten. Die Gitterblende 2 weist in der Mitte eine entsprechende, in der Zeichnung nicht dargestellte Aussparung auf, so daß der durch die Planfläche der Gitterlinse hindurch einfallende Bildstrahl nicht behindert wird. Hinter der Gitterblende 2 ist ein Fotoelement 3 angeordnet, das in der Mitte eine Aussparung 3 a aufweist, die zweckmäßig im Durchmesser etwas kleiner ist als die Planfläche 1 α und durch die die in der Mitte einfallenden Bildstrahlen ungehindert hindurchtreten. Ein hinter dem Fotoelement 3 angeordneter Silberspiegel 4 leitet die ein-Mit einem Belichtungsmesser1 with the window of the exposure meter is designated, which is designed as a grating lens and has a flat surface 1 α in the center, which allows undistorted passage of incident image rays. The grid diaphragm located behind it is denoted by 2, which, in conjunction with the grating lens, serves the purpose of only guiding light coming from the subject to the photo element. The grating diaphragm 2 has in the middle a corresponding recess, not shown in the drawing, so that the image beam incident through the plane surface of the grating lens is not obstructed. Behind the grille 2, a photo element 3 is arranged, which has a recess 3 a in the middle, which is suitably slightly smaller in diameter than the plane surface 1 α and through which the incident image rays in the center pass unhindered. A silver mirror 4 arranged behind the photo element 3 initiates the input with an exposure meter
vereinigter Meßsucher
für fotografische Kameras
mit eingespiegeltem Bildfeldbegrenzungsrahmen united rangefinder
for photographic cameras
with reflected image field delimitation frame
Anmelder:Applicant:
Wilhelm Kunze,
Bünde (Westf.), Südring 104Wilhelm Kunze,
Bünde (Westphalia), Südring 104
Wilhelm Kunze, Bünde (Westf.),
ist als Erfinder genannt wordenWilhelm Kunze, Bünde (Westphalia),
has been named as the inventor
fallenden Bildstrahlen rechtwinklig in Richtung des Suchers. Den sucherseitigen Abschluß sowie die Abdichtung des Belichtungsmessergehäuses bildet eine durchsichtige Glasscheibe 5. Durch zusätzliche Aussparungen 3 & im Fotoelement in Form eines Rahmens können auf einfache Weise mit denselben Mitteln die Voraussetzungen für die Einspiegelung eines Leuchtrahmens geschaffen werden.falling image rays at right angles in the direction of the viewfinder. The end of the viewfinder and the seal of the light meter housing forms a transparent pane of glass 5. With additional cutouts 3 & in the photo element in the form of a frame, the Conditions for the reflection of a light frame are created.
Claims (1)
Deutsche Patentschrift Nr. 655 674;
deutsche Auslegeschrift Nr. 1 007 612.Considered publications:
German Patent No. 655,674;
German interpretation document No. 1 007 612.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK32606A DE1089259B (en) | 1957-08-01 | 1957-08-01 | A rangefinder for photographic cameras with a mirrored image field delimitation frame combined with an exposure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK32606A DE1089259B (en) | 1957-08-01 | 1957-08-01 | A rangefinder for photographic cameras with a mirrored image field delimitation frame combined with an exposure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1089259B true DE1089259B (en) | 1960-09-15 |
Family
ID=7219496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK32606A Pending DE1089259B (en) | 1957-08-01 | 1957-08-01 | A rangefinder for photographic cameras with a mirrored image field delimitation frame combined with an exposure meter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1089259B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1210319B (en) * | 1964-11-12 | 1966-02-03 | Leitz Ernst Gmbh | Light metering device in photographic cameras |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE655674C (en) * | 1935-04-26 | 1938-01-20 | I G Farbenindustrie Akt Ges | Unified distance and light meter |
| DE1007612B (en) * | 1956-10-03 | 1957-05-02 | Braun Camera Werk | Rangefinder for photographic cameras |
-
1957
- 1957-08-01 DE DEK32606A patent/DE1089259B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE655674C (en) * | 1935-04-26 | 1938-01-20 | I G Farbenindustrie Akt Ges | Unified distance and light meter |
| DE1007612B (en) * | 1956-10-03 | 1957-05-02 | Braun Camera Werk | Rangefinder for photographic cameras |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1210319B (en) * | 1964-11-12 | 1966-02-03 | Leitz Ernst Gmbh | Light metering device in photographic cameras |
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