DE1861822U - SINGLE-EYE REFLECTIVE CAMERA WITH ELECTRIC EXPOSURE METER. - Google Patents
SINGLE-EYE REFLECTIVE CAMERA WITH ELECTRIC EXPOSURE METER.Info
- Publication number
- DE1861822U DE1861822U DEK42356U DEK0042356U DE1861822U DE 1861822 U DE1861822 U DE 1861822U DE K42356 U DEK42356 U DE K42356U DE K0042356 U DEK0042356 U DE K0042356U DE 1861822 U DE1861822 U DE 1861822U
- Authority
- DE
- Germany
- Prior art keywords
- prism
- pentagonal
- camera
- rod
- viewfinder
- 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
Links
- 239000011521 glass Substances 0.000 claims description 6
- 230000011514 reflex Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 5
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- 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
- G03B13/02—Viewfinders
-
- 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
- G03B13/02—Viewfinders
- G03B13/06—Viewfinders with lenses with or without reflectors
-
- 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
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Viewfinders (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Kodak AktiengesellschaftKodak Public Company
Stuttgart-WangenStuttgart-Wangen
Hedelfinger Strasse 51+? 60 und 70 30. August 1962Hedelfinger Strasse 5 1 +? 60 and 70 August 30, 1962
GebrauchsmusteranmeldungUtility model registration
Einäugige Spiegelreflexkamera mit elektrischem BelichtungsmesserSingle lens reflex camera with electric light meter
Die Neuerung betrifft eine einäugige Spiegelreflexkamera mit elektrischem Belichtungsmesser und/oder -regler mit einer Anzeige im Sucher und gegebenenfalls an anderer Stelle der Kamera.The innovation relates to a single-lens reflex camera with an electric light meter and / or regulator with a display in the viewfinder and possibly elsewhere on the camera.
Kameras dieser Art sind in zahlreichen Ausführungsformen bekannt. Bei einem Vorschlag ist der Zeiger des Belichtungsmessers dicht unter der Mattscheibe angeordnet. Bei einigen Vorschlägen erfolgt die Anzeige im Sucher mittels Einspiegelung. Gemäss einem weiteren Vorschlag ist eine Stelle der sonst spiegelnden Fläche einer der Dachkanten des Pentaprismas für die auf diese Stelle treffenden Strahlen durchsichtig gemacht, zur Sichtbarmachung des Messwerkzeigers. Entsprechend einem anderen Vorschlag ist am Rand des bildauffangenden Mittels eine optisch wirksame Fläche angeordnet, welche es ermöglicht, die Anzeige des Messinstrumentes sowohl im Sucher als auch von der Oberseite der Deckkappe her abzulesen. Eine schrägliegende, reflektierende Fläche der Bildfeldlinie sowie weitere zwischen BiId-Cameras of this type are known in numerous embodiments. One suggestion is the pointer of the light meter placed just below the screen. Some suggestions are displayed in the viewfinder by means of reflection. According to Another suggestion is a place on the otherwise reflective surface of one of the roof edges of the pentaprism for this Place of incident rays made transparent to make the measuring device pointer visible. According to another suggestion is an optical one at the edge of the image-capturing means effective area arranged, which makes it possible to display the measuring instrument both in the viewfinder and from the top read off the top cap. An inclined, reflective surface of the image field line as well as others between the image
feldlinse und Belichtungsmesswerk befindliche optische Mittel gestatten bei einer anderen Kamera dasselbe.The optical means located in the field lens and exposure meter allow the same thing with another camera.
Die Aufgabe der Neuerung ist es, ohne Änderung des Pentadachkantprismas und/oder der Bildfeldlinse die Anzeige des elektrischen Belichtungsmessers im Sucher sichtbar zu machen. Diese wird bei der Spiegelreflexkamera mit Pentadachkantprisma, bei der die Anzeige des vorzugsweise eingebauten elektrischen Belichtungsmessers und/oder -reglers im Suchergesichtsfeld oder am Rande desselben abgelesen werden kann, neuerungsgemäss dadurch gelöst, dass direkt unter der unteren Glasfläche des Pentadachkantprismas ein um l8o° ablenkendes Spiegelsystem, beispielsweise ein Porroprisma und ein lichtdurchlässiger Stab aus Glas oder Kunststoff angeordnet sind. Durch diese Ausbildung ist es möglich, ohne Änderung des normalen Suchersystems, lediglich durch das Hinzufügen von einfachen optischen Mitteln, die von aussen, vorzugsweise am Kameradeckel, ablesbare Anzeige des Messwerks im Sucher sichtbar zu machen.The task of the innovation is without changing the pentagonal prism and / or to make the display of the electric light meter visible in the viewfinder of the image field lens. These is used in the case of the SLR camera with a pentagonal prism, in which the display of the preferably built-in electric light meter and / or regulator can be read in the viewfinder field of view or on the edge thereof, according to the innovation solved that directly under the lower glass surface of the pentagonal prism a mirror system deflecting by 180 °, For example, a Porro prism and a translucent rod made of glass or plastic are arranged. Through this training it is possible without changing the normal viewfinder system, just by adding simple optical means, to make the display of the measuring mechanism visible in the viewfinder, which can be read from the outside, preferably on the camera cover.
Weitere Einzelheiten der Neuerung sind der Beschreibung eines Ausführungsbeispiels, ohne sich jedoch darauf zu beschränken, sowie den Schutzansprüchen zu entnehmen.Further details of the innovation can be found in the description of an exemplary embodiment, without, however, being limited to as well as the protection claims.
Die zeichnerischen Darstellungen zeigen in derThe graphic representations show in the
Abb. 1 eine Seitenansicht der optischen Teile, Fig. 1 is a side view of the optical parts,
Abb. 2 eine Ansicht der optischen Teile in Verbindung mit dem Messwerk und Kameradeckel in Teildarstellung. Fig. 2 is a partial view of the optical parts in connection with the measuring mechanism and camera cover.
Das Pentadachkantprisiia 1 1st innerhalb des Kameradeckels 2 angeordnet, in dessen Ausschnitt 2 a der Zeiger 3 des Messwerks k bei Draufsicht auf den Kameradeckel 2 sichtbar ist. Der unteren Fläche 1 a des Pentadachkantprlsmas 1 ist direkt ein Porroprisma J? zugeordnet. Vorzugsweise mit dem Porroprlsma 5 verbunden, ist zwischen diesem und dem Messwerkzeiger 3 der lichtdurchlässige Stab 6 angeordnet. Damit das Sucherbild und Belichtungsanzeige gleichzeitig scharf gesehen werden, 1st es zweckmässig, eine der lichtbrechenden Flächen 5 a oder 6 a kuglig auszubilden, ebenso 1st der Glasweg des Porroprismas und Stabs6 entsprechend abgestimmt. Die Flächen 5 b und 5 c des Porroprismas 5 reflektieren und machen die Anzeige des Belichtungsmesswerks k im Sucher sichtbar. Sowohl das Porroprisma 5 als auch der Stab 6 sind zweckmässlgerweise aus Kunststoff, gegebenenfalls einstückig, hergestellt. The pentadachkantprisiia 1 is arranged within the camera cover 2, in the section 2 a of which the pointer 3 of the measuring mechanism k is visible when the camera cover 2 is viewed from above. The lower surface 1 a of the penta roof prism 1 is directly a Porro prism J? assigned. Preferably connected to the Porroprlsma 5, the translucent rod 6 is arranged between this and the measuring tool 3. So that the viewfinder image and exposure display can be seen sharply at the same time, it is expedient to make one of the refractive surfaces 5 a or 6 a spherical, and the glass path of the Porro prism and rod 6 is matched accordingly. The surfaces 5 b and 5 c of the Porro prism 5 reflect and make the display of the exposure meter k visible in the viewfinder. Both the Porro prism 5 and the rod 6 are expediently made of plastic, optionally in one piece.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK42356U DE1861822U (en) | 1962-08-31 | 1962-08-31 | SINGLE-EYE REFLECTIVE CAMERA WITH ELECTRIC EXPOSURE METER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK42356U DE1861822U (en) | 1962-08-31 | 1962-08-31 | SINGLE-EYE REFLECTIVE CAMERA WITH ELECTRIC EXPOSURE METER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1861822U true DE1861822U (en) | 1962-11-08 |
Family
ID=33144246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK42356U Expired DE1861822U (en) | 1962-08-31 | 1962-08-31 | SINGLE-EYE REFLECTIVE CAMERA WITH ELECTRIC EXPOSURE METER. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1861822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267081B (en) * | 1966-12-15 | 1968-04-25 | Nippon Kogaku Kk | Single lens reflex viewfinder with roof prism |
| DE1797288B1 (en) * | 1968-08-30 | 1971-01-14 | Elbe Kamera Gmbh | SLR camera with prism viewfinder and light meter |
-
1962
- 1962-08-31 DE DEK42356U patent/DE1861822U/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267081B (en) * | 1966-12-15 | 1968-04-25 | Nippon Kogaku Kk | Single lens reflex viewfinder with roof prism |
| DE1797288B1 (en) * | 1968-08-30 | 1971-01-14 | Elbe Kamera Gmbh | SLR camera with prism viewfinder and light meter |
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