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Title: Processing system utilizing a multi-purpose film handling cartridge
Claims: What is claimed is: 1. A film handling system capable of using a film cartridge comprising a film cartridge accommodating a strip of film therewithin and adapted to be utilized commonly in each process for exposure, development as well as projection of the film, said cartridge comprising a housing, a first reel means disposed within said housing for entwining a strip of film therearound at a predetermined position, a second reel means disposed within said housing for taking up said strip of film taken out from said first reel means, a means disposed within said housing for storing developer to develop said film, said means being provided with an opening wherefrom said developer is adapted to impinge selectively on the film path of said strip of film, an apparatus capable of effecting at least said development process for the film accommodated within said film cartridge, said apparatus comprising driving means for actuating said apparatus, said driving means being adapted to provide a driving force of nearly constant speed at all times, a film cartridge chamber for accommodating therewithin said film cartridge at a predetermined position, a film strip advance means for transporting said film in said film cartridge disposed within said film cartridge chamber, said means being arranged selectively to be mechanically linked with at least said second reel means and being actuated by the driving force of said driving means, a mechanical transducer means for decelerating the rotational speed of said film strip advance means with respect to the rotational speed of said driving means at a predetermined ratio corresponding to the amount of film taken around said second reel means, whereby the travelling speed of the film is substantially made constant when the film accommodated within said film cartridge is subjected to at least the development process. 2. A system, as described in claim 1, wherein said film cartridge includes an opening provided at a portion of said housing to expose the film accommodated within said cartridge, and an opening provided at a portion of said housing to permit the projection light flux to be incident upon said cartridge in order to project the film accommodated within said cartridge. 3. A system described in claim 2 wherein said developer storing means is provided with an opening for ejecting said developer, said opening housing having a means for obstructing the ejection of said developer. 4. A system as described in claim 3, wherein said film cartridge comprises an opening adapted to be accessible to a means for releasing the said means for obstructing the ejection of said developer from the outside of said housing. 5. A system as described in claim 1, wherein said mechanical transducer means comprises displacing means coordinated to correspond to the amount of the cartridge accommodating film which is wound up around said second reel means, and means for varying the transmission speed ratio disposed between said driving means and said film advance means in cooperation with said displacing means for varying the transmission speed ratio of said driving means for driving said film advance means with respect to said film advance means. 6. A system as described in claim 5, wherein said displacing means comprises a member for measuring the film, said member being operatively connected with said transmission speed ratio varying means. 7. A system as described in claim 6, wherein said transmission speed ratio varying means comprises first and second pulleys arranged parallel with each other, and an endless band running around said first and second pulleys operatively connected with said film measuring member so as to be displaceable on said pulleys along the axial directions thereof in cooperation with the displacement of said displacing means, said first pulley being formed to be continuously larger in diameter along the axial direction thereof and being rotatable by said driving means, said second pulley being formed to be continuously larger in diameter in the inverse direction to said first pulley and being rotatable with the help of the rotational motion of said first pulley through said endless band. 8. A film handling system capable of using a film cartridge comprising a film cartridge accommodating a strip of film therewithin and adapted to be utilized commonly in each process for exposure, development and projection of the film, said cartridge comprising a housing, a first reel means disposed within said housing for entwining a strip of film therearound at a predetermined position, a second reel means disposed within said housing for taking up said strip of film out from said first reel means, a means disposed within said housing for storing developer to develop said film, said means being provided with an opening through which said developer is adapted to impinge selectively on the film path of said strip of film, an apparatus capable of effecting at least the development process for the film accommodated within said film cartridge, said apparatus comprising a driving means for actuating said apparatus, said driving means being adapted to provide a driving force of nearly constant speed at all times, a film cartridge chamber for accommodating therewithin said film cartridge at a predetermined position, a film strip advance means for transporting said film in said film cartridge disposed within said film cartridge chamber, said means comprising a first pulley mechanically linked with said driving means, said pulley being formed to be continuously larger in diameter along the axial direction thereof and being rotated by said driving force of said driving means, a second pulley mechanically linked with said second reel means selectively to be rotated, said pulley being formed to be continuously larger in diameter along the inverse direction to said first pulley, an endless band running around said first and second pulleys, and continuously displaceable on said pulleys along the axial directions thereof, and means for controlling the displacement of said endless band corresponding to the total rotational frequency of said second pulley, said control means comprising means rotatable in association with said second pulley whereby the running path of said endless band is adapted to be displaced corresponding to the amount of the film entwined around said second reel means so as to render the film transportation speed substantially constant at the time of passing on said opening for appearance of said developer by virtue of varying the speed ratio of said second pulley to said first pulley. 9. A system as described in claim 8, wherein said film cartridge includes an opening provided at a portion of said housing to expose the film accommodated within said cartridge, and an opening provided at a portion of said housing to permit the projection light flux to be incident upon said cartridge in order to project the film accommodated within said cartridge. 10. A system as described in claim 9, wherein said developer, storing means is provided with an opening for ejecting said developer said opening having a means for obstructing the ejection of said developer. 11. A system as described in claim 10, wherein said film cartridge comprises an opening, means for releasing said means for obstructing the ejection of said developer accessible through said opening from the outside of said housing. 12. A system as described in claim 11, wherein said control means comprises a member for measuring the film, said member being operatively connected with said endless band. 13. A film handling system capable of using a film cartridge comprising a film cartridge accommodating a strip of film therewithin and adapted to be utilized commonly in each process for exposure, development and projection of the film, said cartridge comprising a housing, a first reel means disposed within said housing for entwining a strip of film therearound at a predetermined position, a second reel means disposed within said housing for taking up said strip of film taken out from said first reel means, a means disposed within said housing for storing developer for developing said film, said means being provided with an opening wherefrom said developer is adapted to impinge selectively on the film path of said strip of film, an apparatus capable of effecting at least said development process for the film accommodated within said film cartridge, said apparatus comprising a film cartridge chamber accommodating said film cartridge therewithin at a predetermined position, driving means for rotating said second reel means, said driving means being mechanically linked at least with said second reel means when said film cartridge is in said film cartridge chamber, means for controlling the rotational speed of said driving means, said control means comprising a tacho-generator means, said tacho-generator means being engaged selectively with a portion of said film and comprising a rotation means having a part thereof made of a ferromagnetic material to be rotatable in response to the transportation of said film, and a coil means engaged with said rotation means electromagnetically to generate electrical signals corresponding to the rotational speed of said rotation means, switching means arranged electrically between said coil means and said driving means, said switching means being actuated in response to electrical signals from said coil means so as to control the supply of electric current to said driving means, whereby said switching means is controlled by electrical signal from said coil means, said signal of which is generated in response to the film transportation speed at least in the development process for the film accommodated within said film cartridge so as to render the film transportation speed substantially constant. 14. A system as described in claim 13, wherein said film cartridge includes an opening provided at a portion of said housing to expose the film accommodated within said cartridge and an opening provided at a portion of said housing to permit the projection light flux to be incident upon said cartridge in order to project the film accommodated within said cartridge. 15. A system as described in claim 14, wherein said developer storing means is provided with an opening for ejecting said developer, said opening having a means for obstructing the ejection of said developer. 16. A system as described in claim 15, wherein said film cartridge comprises an opening, a means for releasing said means for obstructing the ejection of said developer through said opening accessible from the outside of said housing. 17. A system as described in claim 13, wherein said rotation means includes a sprocket wheel which is adapted to be rotatable in engagement with perforation holes of said film. 18. A system as described in claim 17, wherein said rotation means includes a permanent magnet mounted coaxially with said sprocket wheel to be rotatable with said sprocket wheel, said coil means being arranged around said permanent magnet. 19. A system as described in claim 13, wherein said switching means comprises a transistor circuit. 20. A film handling system capable of using a film cartridge comprising a film cartridge accommodating a strip therewithin and adapted to be utilized commonly in each process for exposure, development and projection of the film, said cartridge comprising a housing, a first reel means disposed within said housing for entwining a strip of film therearound at a predetermined position, a second reel means disposed within said housing for taking up said strip of film taken out from said first reel means, a means disposed within said housing for storing developer to develop said film, said means being provided with an opening through which said developer is adapted to impinge selectively on the film path of said strip of film, an apparatus capable of effecting at least the development process for the film accommodated within said film cartridge, said apparatus comprising a film cartridge chamber for accommodating therewithin said film cartridge at a predetermined position, driving means for actuating said apparatus, said driving means being adapted to be mechanically linked at least with said second reel means when said film cartridge is in said film cartridge chamber and including a rotation driving means for rotating said second reel means, a tacho-generator means, said tacho-generator means comprising a sprocket wheel adapted to be rotatable in engagement with perforation holes of said film, said sprocket wheel being rotated in cooperation with the travelling action of said film. a permanent magnet rotatable with said sprocket wheel, a coil means engaged electromagnetically with said permanent magnet, said coil means generating electric signals corresponding to the rotational speed of said permanent magnet, a switching means actuated in response to electrical signals emitted from said coil means and adapted to control the supply of electric current to said driving means as well as to maintain the rotational speed of said rotation driving means constant, said switching means arranged electrically between said coil means and said rotation driving means, whereby, at the time of effecting at least the development process for the film accommodated within said film cartridge, said switching means is controlled by electric signals emitted from said coil means and generated in response to the film transportation speed which is to be rendered substantially constant. 21. A system as described in claim 20, wherein said film cartridge includes an opening provided at a portion of said housing to permit the projection light flux to be incident upon said cartridge in order to project the film accommodated within said cartridge. 22. A system as described in claim 21, wherein said developer storing means is provided with an opening for ejecting said developer, said opening having a means for obstructing the ejection of said developer. 23. A system as described in claim 22, wherein said film cartridge comprises an opening adapted to be accessible to a means for releasing the said means for obstructing the ejection of said developer from the outside of said housing. 24. A system as described in claim 20, wherein said switching means contains a transistor circuit. 25. A film handling system which can use a film cartridge comprising a film cartridge accommodating a strip of film therewithin and adapted to be utilized commonly in each process for exposure, development and projection of the film, said cartridge comprising a housing, a first reel means disposed within said housing for entwining a strip of film therearound at a predetermined position, a second reel means disposed within said housing for taking up said strip of film taken out from said first reel means, a means disposed within said housing for storing developer to develop said film, said means being provided with an opening wherefrom said developer is adapted to impinge selectively on the film path of said strip of film, an apparatus capable of effecting at least the development process for the film accommodated within said film cartridge, said apparatus comprising a driving means for rotating and driving said second reel means, said driving means being adapted to rotate said first reel means in cooperation with the backward feeding movement of said film entwined around said first reel means when said second reel means is driven for rotational motion, a braking means engaged with said first reel means, said braking means comprising a governor of the wind mill type for controlling the rotational speed of said first reel means with the help of air resistance corresponding to the rotational speed of said second reel means when said first reel means is rotated for effecting the backward feeding of said film, whereby the film transportation speed is rendered substantially constant when carrying out the development process for the film accommodated within said film cartridge. 26. A system as described in claim 25, wherein said film cartridge includes an opening provided at a portion of said housing to expose the film accommodated within said cartridge, and an opening provided at a portion of said housing to permit the projection light flux to be incident upon said cartridge in order to project the film accommodated within said cartridge. 27. A system as described in claim 26, wherein said developer storing means is provided with an opening for ejecting said developer, said opening having a means for obstructing the ejection of said developer. 28. A system as described in claim 27, wherein said film cartridge comprises an opening adapted to be accessible to a means for releasing said means for obstructing the ejection of said developer from the outside of said housing. Other info: Inventors: Hosoe, Kazuya (Machida, JA) Komine, Yoshio (Tokyo, JA) Application Number: 474155 Filing Date: 1974-05-29 Publication_date: 1976-01-20 Assignee: Canon Kabushiki Kaisha (JA) Primary Class(es): 352/130 352/182 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Hayes, Monroe H. Assistant Examiner: Attorney: Toren, McGeady and Stanger |
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