SE443668B

SE443668B - DEVICE FOR RECORDING INFORMATION ON MOVIES

Info

Publication number: SE443668B
Application number: SE8305206A
Authority: SE
Inventors: R L Stalfors
Original assignee: Hasselblad Ab Victor
Priority date: 1983-09-27
Filing date: 1983-09-27
Publication date: 1986-03-03
Also published as: JPS6095521A; DE3435309A1; SE8305206D0; SE8305206L; DE3435309C2; JPH058811B2

Description

8505206-s 2 kelo<¿ 0 med normalen mot förflyttningsriktningen hos filmen och att i anordningen ingår organ för utstyrning av ljuskällorna i en viss. av vinkeln Wi beroende, konsekutiv följd. så att de i filmen under förflyttningen registrerade teckenraderna är belägna vinkelrätt mot förflyttningsriktningen. 8505206-s 2 kelo <¿0 with the normal to the direction of movement of the film and that the device includes means for controlling the light sources in a certain. of the angle Wi dependent, consecutive sequence. so that the character lines recorded in the film during the movement are located perpendicular to the direction of movement.

I de fall man vid kameror med utbytbara magasin an- vänder olika magasin med olika filmhastighet. kan upp- finningen också användas. Hos en för detta ändamål lämplig utföringsform av uppfinningen är organet för utstyrning av ljuskällorna anordnat att känna av film- hastigheten under förflyttningen och med ledning av denna bestämma storleken av tidsmellanrummen i den konsekutiva utstyrningen. I vissa kameror är inte filmhastigheten konstant, utan den varierar under transportcykeln. En för detta fal1_användbar utför- ingsform av uppfinningen kännetecknas av att organet för utstyrning av ljuskällorna är anordnat att känna av även hastighetsvariationer och i motsvarighet till dessa, eventuellt tidsförskjutet. variera tidsmellan- rummen.In cases where cameras with interchangeable magazines are used, different magazines with different film speeds are used. the invention can also be used. In an embodiment of the invention suitable for this purpose, the means for controlling the light sources is arranged to sense the film speed during the movement and on the basis of this determine the size of the time intervals in the consecutive equipment. In some cameras, the film speed is not constant, but varies during the transport cycle. An embodiment of the invention which can be used for this purpose is characterized in that the means for controlling the light sources is arranged to sense also speed variations and in corresponding thereto, possibly time-shifted. vary the time intervals.

Med en anordning enligt uppfinningen hâlles den maxi- mala strömförbrukníngen nere. trots att en vinkelrätt mot filmens förflyttningsriktning belägen rad av tecken blir resultatet.With a device according to the invention, the maximum power consumption is kept down. despite the fact that a row of characters perpendicular to the direction of movement of the film is the result.

Uppfinningen skall i det nedanstående förklaras och beskrivas i anslutning till bifogade ritning. varâ fig. 1 avser en i luften fritt tecknad film såsom den är belägen i en kamera. figur 2 visar en kamera för- sedd med en anordning enligt uppfinningen och figur 3 i överdriven skala visar lysdiodernas inbördes vinkel; li förskjutning. 8505206-8 Som tidigare nämnts, och som framgår av figur 1 och 2. är avsikten med uppfinningen att möjliggöra en in- skrivning av tecken 1 tvärs en fotografisk film 2. när denna dras fram i en kamera i pilens riktning efter det att en bild 3 exponerats. Tecknen 1 skrivs i punktmatrisform med 5 x 7 punkter av en rad 5 av små lysdioder 6, vilken rad sträcker sig något snett över filmen 2, i en vinkel ucgentemot dess tvärriktning.The invention will be explained and described below in connection with the accompanying drawing. Fig. 1 relates to a film drawn freely in the air as it is located in a camera. Figure 2 shows a camera provided with a device according to the invention and Figure 3 on an exaggerated scale shows the mutual angle of the LEDs; in displacement. 8505206-8 As previously mentioned, and as shown in Figures 1 and 2. the object of the invention is to enable an inscription of characters 1 across a photographic film 2. when this is pulled out in a camera in the direction of the arrow after an image 3 exposed. The characters 1 are written in dot matrix form with 5 x 7 points of a row 5 of small LEDs 6, which row extends slightly obliquely across the film 2, at an angle opposite to its transverse direction.

Lysdiodraden 5 är infäst i ett kamerahus 7, som är försett med en motor 8, som drar fram filmen 2 i dess magasin (ej visat). l det i figur 3 visade fallet är dioderna 6 hos varje grupp om fem, som hör till en viss teckenposition, belägna vinkelrätt mot filmens framdragningsriktning, medan grupperna inbördes är förskjutna sä att en lutning erhålles av en tänkt "tyngdpunktslinje" genom grupperna, Vid inexponeríng av en teckenrad i en förbipasserande filmbana eller filmruta styres först lysdioderna i grupp 9 ut och sedan, allteftersom filmen dras fram. de övriga grupperna. Under filmens frammatning styrs dioderna ut återkommande successivt så, att slutresultatet på filmen blir en teckenrad, som är vinkelrät mot filmens framdragningsriktning. Förskjutningsavstândet mellan grupperna är på figuren för tydlighets skull överdri- vet. För utstyrningen av dioderna svarar i och för sig känd elektronik (ej visad), vilken i beroende av filmens avancemang styr ut lysdioderna. l det fall hastigheten hos filmframmatningen inte alltid är densamma, måste elektroniken känna av denna via något givarsystem av känt slag och i motsvarighet härtill välja tidsmellanrummen hos lysdiodernas utstyrning.The LED wire 5 is attached to a camera housing 7, which is provided with a motor 8, which pulls out the film 2 in its magazine (not shown). In the case shown in Figure 3, the diodes 6 of each group of five belonging to a certain character position are located perpendicular to the direction of advance of the film, while the groups are offset from each other so that a slope is obtained by an imaginary "center of gravity line" through the groups. of a character string in a passing movie path or movie box, the LEDs in group 9 are first controlled out and then, as the movie is pulled forward. the other groups. During the advancement of the film, the diodes are successively controlled out so that the end result of the film becomes a line of characters which is perpendicular to the direction of advance of the film. The displacement distance between the groups is exaggerated in the figure for the sake of clarity. For the equipment of the diodes is known per se known electronics (not shown), which depending on the advancement of the film controls the LEDs. In case the speed of the film supply is not always the same, the electronics must sense this via some sensor type of known type and correspondingly select the time intervals of the LED equipment.

Uppfinningen är inte begränsad till ovan visade och förklarade utföringsform. utan många modifieringar är möjliga inom ramen för de efterföljande patentkraven.The invention is not limited to the embodiment shown and explained above. without many modifications being possible within the scope of the appended claims.

Exempelvis kan lysdioderna vara belägna i en enda rak. 8505206-8 lutande rad. Detta medför dock ett annat utförande av styrelektroniken. Vidare kan i stället för displayer för punktskrift displayer av 7-segments- eller 15-seg- mentstyp användas. Lysdiodraden kan placeras så. att texten hamnar i bilden i stället för vid sidan av. och givetvis kan flera rader text skrivas. I en utförings- form, som medger plats för långa texter. upphör inte frammatningen, när bildframmatningen är avslutad. utan först när textinformatíonen är slutskriven. vilket i princip innebär att hela resterande filmremsan efter en bild kan fyllas med text. Uppfinningen fungerar lika bra vid film i form av ark som vid rullfilm- Grupperna av lysdioder kan lämpligen vara av modultyp för enkelt utbyte. Diodraden kan även vara anordnad i filmmagasinet.For example, the LEDs may be located in a single straight line. 8505206-8 inclined row. However, this entails a different design of the control electronics. Furthermore, instead of Braille displays, 7-segment or 15-segment type displays can be used. The LED wire can be placed like this. that the text ends up in the image instead of next to it. and of course several lines of text can be written. In an embodiment that allows space for long texts. the feed does not stop when the image feed is completed. but only when the text information is finalized. which in principle means that the entire remaining film strip after an image can be filled with text. The invention works just as well with film in the form of sheets as with roll film. The groups of LEDs may suitably be of the module type for easy replacement. The diode line can also be arranged in the film magazine.

Alternativt kan lysdiodraden vara_anordnad på en lin- jal, som svepes över den stillastående filmen. före dess transport.Alternatively, the LED wire may be arranged on a ruler, which is swept over the stationary film. before its transport.

Claims

8305206-8 rßrrsnrxnêy

1. 1. Device for recording information (1) on film (2) of photographic cameras and comprising light sources (6) placed in a row (5) and means connected to the light sources for providing the same to be activated in such a figuration and sequence that the film (2), when the film portion present in the exposure mode is changed during its movement to pass the light sources, obtains an optical exposure of a Lex. points or dashes consisting of information in the film, characterized in that the light sources (6), which are arranged for writing a line of characters across the direction of movement of the film, are located in a distance across the intended path across the film (2). its direction of movement and such that the light sources individually or in groups into which the light sources are divided are offset by or against the direction of movement from an imaginary line across the same with one for each individual light source or group of light sources specifically assigned the offset steps with its distance (S) is angled by cx in 0 to the normal to the direction of movement, and that said means for controlling the light sources is arranged to activate the light sources individually and in groups in a successive sequence, so that it is preferably substantially perpendicular across the film. extending area, in which the registration is to be performed during the movement, reaches the individual lj the source or group of light sources upon its activation, whereby the character line or lines recorded in the film during the movement are located in said area across the direction of movement.

Device according to claim 1, characterized in that the means for controlling the light sources (6) is arranged to sense the film speed during the movement and on the basis of this determine the magnitude of the time intervals which form the successive Activation sequence in the control. .

Device according to claim 2, characterized in that the means for equipping the light sources (6) is arranged to sense also speed variations and in corresponding thereto, possibly time-shifted, varying the time intervals.

Device according to one of the preceding claims, characterized in that the means for moving the film is controlled by the means for equipping the light sources (6) so that feeding continues until all the information is ready.