FR2523321A3 - Film advancing device for filming or copying appts. - has combination of perforator for making single mark and IR detector - Google Patents
Film advancing device for filming or copying appts. - has combination of perforator for making single mark and IR detector Download PDFInfo
- Publication number
- FR2523321A3 FR2523321A3 FR8204650A FR8204650A FR2523321A3 FR 2523321 A3 FR2523321 A3 FR 2523321A3 FR 8204650 A FR8204650 A FR 8204650A FR 8204650 A FR8204650 A FR 8204650A FR 2523321 A3 FR2523321 A3 FR 2523321A3
- Authority
- FR
- France
- Prior art keywords
- film
- detector
- perforator
- appts
- combination
- 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
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
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
- G03B27/587—Handling photosensitive webs
-
- 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
- G03B17/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film, e.g. title, time of exposure
-
- 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
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film
- G03B2217/242—Details of the marking device
- G03B2217/245—Mechanical devices
-
- 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
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film
- G03B2217/246—Details of the markings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
Description
L'invention se rapporte à un dispositif d'avance, d'une pose à une autre, dans un appareil de prises de vues et de reproduction, dun film négatif, notamment lorsque celui-ci ne possède de crantage ou de perforations multiples sur aucun de ses côtés longitudinaux. The invention relates to a device for advancing, from one pose to another, in a camera for taking pictures and reproducing, a negative film, in particular when the latter does not have multiple notches or perforations on any on its longitudinal sides.
Elle se rapporte également àl'appareil pourvu de ce dispositif. It also relates to the device provided with this device.
Dans les appareils de ce type, le film est déplacé d'une pose à une autre, une première fois lors des prises de vues afin qu'elles se fassent successivement. In cameras of this type, the film is moved from one exposure to another, the first time when taking pictures so that they are done successively.
Après développement, le film sera à nouveau déplacé, d'une pose à une autre, à chaque fois que seront nécessaires des reproductions photographiques sur un support quelconque. After development, the film will be moved again, from one pose to another, whenever photographic reproductions on any medium are necessary.
Ces déplacements doivent être précis, non seulement, lors des prises de vues pour éviter tant un espacement excessif qu'une superposition des vues, mais aussi, lors des reproductions, pour que le cadrage soit correct. These movements must be precise, not only when taking pictures to avoid both excessive spacing and overlapping of views, but also, during reproductions, so that the framing is correct.
Dans les dispositifs recevant des films négatifs qui, pour l'ancrage des dents des moyens de commande de leur déplacement, sont pourvus au long de chaque vue d'un crantage ou de perforations multiples, il est aisé de déterminer l'arrêt du film à chaque fois qu'un certain nombre de crans ou de perforations aura été compté depuis sa mise en marche. In the devices receiving negative films which, for anchoring the teeth of the means for controlling their movement, are provided with each notch or multiple perforations along each view, it is easy to determine the stopping of the film at each time a certain number of notches or perforations have been counted since it was started.
Par contre, dans les dispositifs recevant des films négatifs dépourvus de ces crans ou perforations multiples, le contrôle de l'avance ne peut qu'être laissé à l'appréciation de l'opérateur sauf évidemment à créer ces mêmes perforations multiples qui n'auraient d'autre utilité que ce comptage. On the other hand, in the devices receiving negative films devoid of these notches or multiple perforations, the control of the advance can only be left to the appreciation of the operator except obviously to create these same multiple perforations which would not have of any other use than this count.
Le matériel exécutant avec régularité ces perforations multiples au long de chaque vue serait toutefois assez complexe et augmenterait fortement le prix de revient du dispositif. The material regularly performing these multiple perforations along each view would however be quite complex and would greatly increase the cost price of the device.
Un résultat que l'invention vise à obtenir est un dispositif d'avance précis ne nécessitant pas l'exécution, au long de chaque vue, des perforations multiples ni surtout leur comptage. A result which the invention aims to obtain is a precise advance device which does not require the execution, along each view, of multiple perforations nor especially their counting.
A cet effet, elle a pour objet, un dispositif du type cité plus haut notamment caractérisé en ce qu'il comprend, en combinaison, d'une part, un moyen apte à réaliser sur le film une seule marque par prise de vues et, d'autre part, en aval de ce moyen de marquage d'une distance égale au pas entre deux poses, un détecteur de cette marque. To this end, it relates to a device of the type mentioned above, in particular characterized in that it comprises, in combination, on the one hand, a means capable of producing a single mark on the film by taking pictures and, on the other hand, downstream of this means of marking a distance equal to the pitch between two exposures, a detector of this mark.
Elle a également pour objet, l'appareil pourvu de ce dispositif. It also relates to the device provided with this device.
L'invention sera bien comprise à l'aide de la description ci-après faite à titre d'exemple non limitatif, en regard du dessin ci-annexé, qui représente schématiquement le dispositif d'avance vu de dessus. The invention will be better understood with the aid of the description below given by way of nonlimiting example, with reference to the attached drawing, which schematically represents the advance device seen from above.
En se reportant au dessin, on voit que le film négatif 1 issu d'une bobine distributrice 2, est, pour son avance entre les prises de vues ou les reproductions 3, enroulé sur une bobine réceptrice 4 qui est mue en rotation autour de son axe 5 grâce à un groupe moto-réducteur 6. Referring to the drawing, we see that the negative film 1 from a distribution reel 2, is, for its advance between shots or reproductions 3, wound on a take-up reel 4 which is rotated around its axis 5 thanks to a geared motor group 6.
De part et d'autre de sa zone cfferte aux prises de vues ou aux reproductions, le film peut également être maintenu par des rouleaux presseurs 7, 8. On either side of its area taken for shots or reproductions, the film can also be held by pressure rollers 7, 8.
Afin de contrôler la présence du film, le dispositif comprend un détecteur 9 tel, par exemple, un détecteur à infra-rouge. In order to control the presence of the film, the device comprises a detector 9 such, for example, an infrared detector.
Selon une caractéristique essentielle de l'invention, le dispositif comprend aussi, en combinaison, d'une part, un moyen 10 apte à réaliser sur le film 1 une seule marque 11 par prise de vues et, d'autre part, en aval du moyen de marquage 10 d'une distance égale au pas P entre deux poses 3, un détecteur 12 de cette marque 11. According to an essential characteristic of the invention, the device also comprises, in combination, on the one hand, a means 10 capable of producing on the film 1 a single mark 11 by taking pictures and, on the other hand, downstream of the marking means 10 of a distance equal to the pitch P between two exposures 3, a detector 12 of this mark 11.
Dans un mode préféré, le moyen de marquage 10 consiste en une perforatrice et le détecteur de la perforation est un détecteur à infra-rouge. In a preferred embodiment, the marking means 10 consists of a perforator and the perforation detector is an infrared detector.
Un détecteur complémentaire 13 pourra être prévu afin de contrôler le retrait par rapport au film de l'outil de marquage avant d'autoriser l'avance du dit film. A complementary detector 13 could be provided in order to control the withdrawal with respect to the film of the marking tool before authorizing the advance of said film.
Grâce à cette combinaison du moyen de marquage 10 et du détecteur 12 des marques 11 et à leur espace d'un pas P, il n'est pas nécessaire de compter les perforations. Thanks to this combination of the marking means 10 and of the detector 12 of the marks 11 and to their space of a pitch P, it is not necessary to count the perforations.
Lors de chaque prise de vue, l'opérateur réalise une perforation 11. During each shot, the operator makes a perforation 11.
Lorsque la prise de vues est terminée, il commande l'a vance du film dont l'arrêt sera lié à la détection de la perforation 11 qui vient d'être faite. When the shooting is finished, it controls the advance of the film, the stopping of which will be linked to the detection of the perforation 11 which has just been made.
Une nouvelle prise de vues et perforation peuvent alors être faites. A new shot and perforation can then be made.
Lorsque seront faites des reproductions, après donc développement du film, le détecteur retrouvera chacune des perforations et commandera de même manière l'arrêt du film. When reproductions will be made, after therefore developing the film, the detector will find each of the perforations and will likewise control the stopping of the film.
Evidemment, la perforatrice 10 et/ou le détecteur 12 de perforation pourront être montés de manière telle que leur écartement P soit réglable en fonction de la largeur des vues. Obviously, the perforator 10 and / or the perforation detector 12 can be mounted in such a way that their spacing P is adjustable as a function of the width of the views.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204650A FR2523321A3 (en) | 1982-03-11 | 1982-03-11 | Film advancing device for filming or copying appts. - has combination of perforator for making single mark and IR detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204650A FR2523321A3 (en) | 1982-03-11 | 1982-03-11 | Film advancing device for filming or copying appts. - has combination of perforator for making single mark and IR detector |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2523321A3 true FR2523321A3 (en) | 1983-09-16 |
FR2523321B3 FR2523321B3 (en) | 1984-01-27 |
Family
ID=9272151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8204650A Granted FR2523321A3 (en) | 1982-03-11 | 1982-03-11 | Film advancing device for filming or copying appts. - has combination of perforator for making single mark and IR detector |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2523321A3 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1399965A (en) * | 1964-06-29 | 1965-05-21 | Leitz Ernst Gmbh | Device for the marking of cinematographic films |
US3623808A (en) * | 1969-04-25 | 1971-11-30 | Agfa Gevaert Ag | Photographic-copying apparatus |
US3700908A (en) * | 1971-08-25 | 1972-10-24 | Eastman Kodak Co | Apparatus for placing marks on a web |
FR2180524A1 (en) * | 1972-04-19 | 1973-11-30 | Cgr | |
FR2406224A1 (en) * | 1977-10-13 | 1979-05-11 | Agfa Gevaert Ag | METHOD AND DEVICE FOR THE RECORDING AND RESTORATION OF MOVING IMAGES AND STILL IMAGES |
-
1982
- 1982-03-11 FR FR8204650A patent/FR2523321A3/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1399965A (en) * | 1964-06-29 | 1965-05-21 | Leitz Ernst Gmbh | Device for the marking of cinematographic films |
US3623808A (en) * | 1969-04-25 | 1971-11-30 | Agfa Gevaert Ag | Photographic-copying apparatus |
US3700908A (en) * | 1971-08-25 | 1972-10-24 | Eastman Kodak Co | Apparatus for placing marks on a web |
FR2180524A1 (en) * | 1972-04-19 | 1973-11-30 | Cgr | |
FR2406224A1 (en) * | 1977-10-13 | 1979-05-11 | Agfa Gevaert Ag | METHOD AND DEVICE FOR THE RECORDING AND RESTORATION OF MOVING IMAGES AND STILL IMAGES |
Also Published As
Publication number | Publication date |
---|---|
FR2523321B3 (en) | 1984-01-27 |
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ST | Notification of lapse |