FR2537294A1 - Level viewfinder for stereoscopic photographs - Google Patents
Level viewfinder for stereoscopic photographs Download PDFInfo
- Publication number
- FR2537294A1 FR2537294A1 FR8220523A FR8220523A FR2537294A1 FR 2537294 A1 FR2537294 A1 FR 2537294A1 FR 8220523 A FR8220523 A FR 8220523A FR 8220523 A FR8220523 A FR 8220523A FR 2537294 A1 FR2537294 A1 FR 2537294A1
- Authority
- FR
- France
- Prior art keywords
- camera
- viewfinder
- tube
- field
- view
- 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.)
- Granted
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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
- G03B35/00—Stereoscopic photography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
Abstract
Description
Wiscur à niveau pour la prise de vues stéréoscopiques
La présente invention concerne les instruments permet -tant de réaliser des photographies avec effet de relief au moyen de n'importe quel appareil photographique. a
Dans les dispositifs connus de ce genre la rélisation
de deux photos au cadrage identique s'obtient par un appareil photo spécial à double objectif fabriqué an petite sérias et qui de ce fait ne peut utiliser les avantages techniques et objec
-tifs perfectionnés des appareils mono beaucoup plus rependus. Wiscur level for stereoscopic shooting
The present invention relates to instruments allowing-tant to take photographs with relief effect by means of any photographic camera. at
In known devices of this kind, the realization
of two photos with identical framing is obtained by a special dual-lens camera manufactured in small series and which therefore cannot use the technical advantages and objec
-perfect features of mono devices that are much more widely available.
Les deux vues peuvent stobtenir aussi au moyen. de ca -dres ou de barrettes à glissière fixes à un pied.C2 dernier procédé est lourd, encombrant et d'un emploi mal aisé. Both views can also be obtained by means. of ca -dres or of slide bars fixed to a foot. The latter process is heavy, bulky and difficult to use.
Un troisième procéde consiste à annexer à l'appareii, pas toujours adapté à le recevoir, un système optique qui sépare
le cliché en deux. De plus dans tous ces cas la basa (écart entre
les prises de vues ) ne peut excéder les dimensions de l'instrume
nt, ce qui réduit à néant l'effet de relief sur les profondeurs de champ.A third procedure consists in annexing to the apparatus, not always adapted to receive it, an optical system which separates
the picture in two. Moreover in all these cases the basa (difference between
the shots) cannot exceed the dimensions of the instrument
nt, which reduces to nothing the effect of relief on the depths of field.
Le viseur selon l'invention permet d'éviter ces inconvé -nients et supprime aussi les parallaxes relativement gênantes entre les deux vues. La visée se fait sur le point central du c.adrage désiré par un oeilleton distant de SQ CM doun croisillon de visée . La ligne horizontale de celui-ci est constituée par un niveau à bulle. L'oeilleton et le croisillon situés aux extremi -tés du viseur sont maintenus soit par un tube soit par une trin -gle en métal ou en matière plastique. Une équerre et un écrou permettent de fixer l'ensemble a' l'appareil photo. The viewfinder according to the invention makes it possible to avoid these drawbacks and also removes the relatively annoying parallaxes between the two views. The aiming is done on the central point of the desired frame by an eyepiece distant from SQ CM or aiming crosspiece. The horizontal line of it is constituted by a spirit level. The eyepiece and the cross located at the extremi -ties of the sight are maintained either by a tube either by a trin -gle out of metal or plastic. A bracket and a nut allow to fix the whole to the camera.
Le dessin annexé est une vue en coupe. du dispositif lorsque le support est un tube. The accompanying drawing is a sectional view. of the device when the support is a tube.
Tel qu'il est représenté le dispositif comporte:un oeillston 1 solidaire d'un tube 2 opposé à un croisillon 3 dont la partie horizontale est constituée par un niveau à bulle. Une équerre 4 est fixée au tube .Un écrou 5 permet de fixer l'ensemble à un appareil photographique. As shown, the device comprises: an eyelet 1 secured to a tube 2 opposite a cross 3 whose horizontal part is constituted by a spirit level. A square 4 is fixed to the tube. A nut 5 makes it possible to fix the assembly to a camera.
Apràs avoir choisi dans le viseur de cet appareil le cadrage désiré, on prend pour point de repère un détail du champ, peint central correspondan-t à l'intersection des diagonales. After having chosen the desired framing in the viewfinder of this camera, we take as a point of reference a detail of the field, painted central corresponding to the intersection of the diagonals.
Dans une deuxième opérations le viseur selon l'invention étant fixé à l'appareil photographique, lorsque l'oeilleton, le centre du croisillon st le point central se trouvent sur la mê- -me ligne on prend un premier cliché, Pendant cette opération
l'ensemble est bien sûr maintenu de niveau.In a second operation, the viewfinder according to the invention being fixed to the camera, when the eyecup, the center of the crosspiece and the central point are on the same line, a first picture is taken. During this operation
the whole is of course kept level.
Dams une troisième opération et suivant le m8me procédez on -carte plus ou moins selon l'effet de relief désiré et on prend un deuxième cliché. In a third operation and following the same procedure, proceed on a map more or less depending on the desired relief effect and we take a second shot.
Le dispositif objet de l'invention, permet de réaliser une phatographie stéréo avec ntimporte quel appareil mono et présente , en autre ,l'avantage tres important d'obtenir le re -lief dans toute la profondeur du champ grace à la possibilité d'agrandir la hase à volonté. The device which is the subject of the invention makes it possible to carry out stereo phatography with any mono device and has, in addition, the very important advantage of obtaining the re-lief in all the depth of the field thanks to the possibility of enlarging hase at will.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8220523A FR2537294A1 (en) | 1982-12-06 | 1982-12-06 | Level viewfinder for stereoscopic photographs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8220523A FR2537294A1 (en) | 1982-12-06 | 1982-12-06 | Level viewfinder for stereoscopic photographs |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2537294A1 true FR2537294A1 (en) | 1984-06-08 |
FR2537294B1 FR2537294B1 (en) | 1985-03-01 |
Family
ID=9279874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8220523A Granted FR2537294A1 (en) | 1982-12-06 | 1982-12-06 | Level viewfinder for stereoscopic photographs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2537294A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632425A1 (en) * | 1988-06-01 | 1989-12-08 | Chelly Sylvain | Method for taking stereoscopic images and device for implementing this method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH109909A (en) * | 1924-04-25 | 1925-06-01 | Waeger Karl | Aids for aiming with firearms. |
CH190752A (en) * | 1937-03-18 | 1937-05-15 | Raeber Alfons | Aiming device for firearms. |
DE879765C (en) * | 1950-06-30 | 1953-07-02 | Zeiss Opton | Geodetic instrument |
US4291982A (en) * | 1979-04-19 | 1981-09-29 | Chin Hsue S | Multi-purpose surveying instrument |
-
1982
- 1982-12-06 FR FR8220523A patent/FR2537294A1/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH109909A (en) * | 1924-04-25 | 1925-06-01 | Waeger Karl | Aids for aiming with firearms. |
CH190752A (en) * | 1937-03-18 | 1937-05-15 | Raeber Alfons | Aiming device for firearms. |
DE879765C (en) * | 1950-06-30 | 1953-07-02 | Zeiss Opton | Geodetic instrument |
US4291982A (en) * | 1979-04-19 | 1981-09-29 | Chin Hsue S | Multi-purpose surveying instrument |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632425A1 (en) * | 1988-06-01 | 1989-12-08 | Chelly Sylvain | Method for taking stereoscopic images and device for implementing this method |
Also Published As
Publication number | Publication date |
---|---|
FR2537294B1 (en) | 1985-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address | ||
ST | Notification of lapse |