摘要:
A film winding spool for a photographic camera has an inner cylindrical member driven in rotation and provided with engaging formations for engaging an initial portion of the film, and an outer cylindrical member surrounding the inner member so as to form a space therebetween and having a slot for introducing the initial portion of a film into this space and an outer surface for winding successive coils of the film, wherein the outer member has at least one opening arranged so that a piece of the film separated from a remaining part of the film can be withdrawn from the space between the inner and outer members through the opening.
摘要:
A photographic camera has a housing the front wall of which is provided with a view finder having an inlet window and with a lens. A manually slidable first cover is movable to and from a position in which it covers the inlet window, and the second cover is movable to and from a new position in which it covers the lens. An arrangement is provided which links the covers for joint movement so that when the view finder cover moves to a position in which it uncovers the view finder the lens cover automatically also moves to a position to which it uncovers the lens, and vice versa.
摘要:
A camera has an objective which can be moved from an extended, operative position to an inoperative position retracted into the camera housing for dimensional compactness. The objective is driven by a motor from one to the other of those two positions and moved by hand back in the other direction, or is motor driven in both directions. The motor employed is the film transport motor anyway present. The objective is coupled to and decoupled from the drive motor in dependence upon the setting of a manual selector, so that the objective not be driven at improper times, and is preferably coupled and decoupled in automatic response to the setting of a manual selector used to implement other camera functions, so that extension and/or retraction of the camera objective occur automatically as a logical incident to the other camera functions selected by the user.
摘要:
Relatively short sections of photographic roll films (such sections can consist of a single film frame or of two or another small number of film frames) are provided with elongated strip-shaped extensions for convenient transport through a copying machine. Extensions are severed from the leader of a roll of convoluted flexible material having a width matching the desired length of an extension, and one end of a freshly severed extension is caused to overlap one end of a film section so that the extent of overlap is not more than the width of a frame line between two neighboring frames of a roll film. One side of each extension is fully coated with a layer of hotmelt, and the extension is sealed to the respective film section by a narrow elongated heating element which is moved against the overlapping ends of the film section and the properly oriented extension. The roll can be subdivided into wider or narrower extensions, depending upon the width of film sections which are to be connected with extensions.
摘要:
A camera for roll film which can be wound into a film cassette has a central subassembly forming a light-tight inner body in which a film cassette chamber which receives the film cassette is contained and in which a film guidance device is contained, and has an outer body which surrounds the central subassembly, wherein the film cassette chamber of the central subassembly can be closed by a removable cassette chamber cover which is accessible through an opening in the outer body.
摘要:
A slide member is slid by the user for adjusting the value of an exposure parameter, such as exposure-aperture size or exposure duration. The slide member has an inoperative setting and various operative settings, some of which are associated with different exposure-parameter values, others of which are additionally or alternatively associated with other functions and/or operating modes, the user necessarily often referring to the slide member because of its multi-purpose control actions. Electrical switch means are furthermore responsive to the setting of the slide member. A mechanical indicator mechanism of simple design, involving in the preferred embodiment a blocking blade coupled to the slide member and moving into and out of a little indicator window, quickly indicates to the user whether the slide member is in its inoperative setting or one of its various operative settings. Preferably, battery-connect action for a variety of camera circuits occurs when the slide member is moved out of its inoperative setting.
摘要:
An arrangement for setting camera functions in dependence upon a characteristic of film being used in the camera. The arrangement includes a manually operable setting knob which can be turned to a plurality of settings and is arrested in each by an arresting device. This knob is used when the film cassette employed in the camera has no film-characteristic (e.g., film speed) mark. When the cassette does have such a mark, the insertion of the cassette into the film chamber of the camera causes disengagement of the arresting device and automatic turning of the knob to a position corresponding to the detected mark. Since the knob is visible to the user it serves as an indicator of the film in the camera, whether the camera setting is manually or automatically made.
摘要:
A photographic apparatus wherein the objective is movable by a focusing mechanism in response to manual rotation of a ring from a starting position. A spring biases the ring to the starting position through the medium of a follower which carries a blocking lever for the focusing mechanism. The blocking lever is moved from the path of a reciprocable spring-biased toothed rack of the focusing mechanism prior to unlocking of the rack by a lever which is disengaged from the rack during that stage of movement of the ring from its starting position which follows retraction of the blocking lever from the path of the rack. The focusing mechanism has a certain amount of inertia so that it does not change the position of the objective during movement of the photographic apparatus between different positions in which the objective is or may be trained upon objects located at different distances from the apparatus.
摘要:
A film transport arrangement for a cassette has a film transport handle, a perforation wheel having a plurality of keys and arranged to engage a perforated film accommodated in a cassette having a film mouth and inserted or insertable in the camera and to move the film from the cassette, and an adjusting device for adjusting the perforation wheel and arranged between the film transport handle and the perforation wheel so that the perforation wheel is always held or brought into such an angular position in which one of its teeth engages in a perforation hole of a film initial portion lying in a film mouth of the cassette insertable or inserted in the camera.
摘要:
A still-camera film transport system includes a perforation feeler and cooperating perforation-detecting switch generating a perforation signal. A time-delay circuit initiates a time delay upon the commencement of film transport and generates a time-delay-elapsed signal when the time delay has elapsed. The duration of the delay is greater than the time required for the film transport motor to transport film from the last film perforation to the actual end of the film. A shutter-state switch generates a signal indicating whether the shutter is in set or unset state. A motor-control switch is controlled from the output of a logic-circuit stage which receives the above three signals. During normal operation before the last perforation is passed, the perforation signal is used to generate a deenergize-motor signal, but in dependence upon the shutter-state signal. When the last film perforation is passed, another perforation signal will not be generated, but after the elapse of the predetermined time interval, the time-delay-elapsed signal causes the film transport motor to be deenergized, but not before the actual end of the film has been reached.