Abstract: A mirror driving device has a simple configuration and is capable of accelerating and decelerating a mirror during a mirror down operation. The mirror driving device includes a mirror, a mirror box attached to be movable between a first position where the mirror is located in an optical path and a second position where the mirror is retracted from the optical path, a mirror driving member rotatably attached to the mirror box and configured to drive the mirror, and a link member rotatably attached to the mirror driving member. A cam portion is formed in the mirror box. The link member includes a follower portion configured to follow with the cam portion.

Abstract: An interchangeable lens connects in a prescribed position to a support surface on a camera of a camera system using a locking apparatus. A method and apparatus for identifying interchangeable lenses uses optical radiation. After the locking operation is performed, a defined optical radiation is directed from two or more, preferably six, light transmitters arranged in the support surface to reflecting or absorbing surfaces on the locking apparatus which are assigned to said light transmitters. The radiation returning from the respective reflecting/absorbing surfaces is picked up by light receivers arranged next to the light transmitters in the support surface. A binary coded signal for identifying the interchangeable lens is formed from the output signals of the light receivers.

Abstract: A camera film feed device is provided for enabling freely loadable placement of a film magazine which has a takeup shaft on which a film is wound and which has a film leader protruding from a film feeding opening. The camera film feed device includes a magazine chamber into which the film magazine is loaded, a fork which joins in mating fashion with the takeup shaft of the film magazine loaded into the magazine chamber, a takeup spool which is positioned on a side of a photographing aperture opposite the magazine chamber and which takes up the film, a sprocket which is positioned between the magazine chamber and the takeup spool, and a control circuit which controls the operations of the fork, takeup spool and sprocket.

Abstract: A camera in which a magazine can be loaded into a magazine chamber in the direction along a winding shaft thereof in a state in which a film leader is wound thereon. During such magazine loading, the film leader is inserted along the outer periphery of a film guide disposed in the magazine chamber. After the magazine has been loaded, the film leader is temporarily rewound into the magazine. Then, it is fed toward a spool chamber. The film leader that has reached the spool chamber is advanced by the spool and film loading is completed. By employing such a loading mechanism, it is possible to provide a camera incorporating a film loading mechanism with a simple structure which is capable of reliable film loading and making it possible, in cameras using 135-type film magazine, to load a magazine in the axial direction thereof.

Abstract: An electric current is supplied from a power source to a motor for transporting a film through a switching element (a transistor). A regenerate current is generated from the motor when the current supply is cut, and the regenerate current is returned to the motor through a switching element (a first MOS FET). The switching elements are turned on and off according to the state of a second MOS FET. When the second MOS FET is turned on, the transistor is turned on and the first MOS FET is turned off, and this drives the motor. When the second MOS FET is turned off, the transistor is turned off and the first MOS FET is turned on, and this stops the motor.

Abstract: This camera feed device is a camera film feed device enabling the freely loadable placement of a film magazine having a takeup shaft on which is wound film and in which the film leader protrudes from a film feeding opening; comprising a magazine chamber into which the film magazine is loaded, a fork which joins in mating fashion with the takeup shaft of the film magazine loaded into this magazine chamber, a takeup spool, on the other side of the photographing aperture opposite the magazine chamber, which takes up the film, and a control circuit which controls the operations of the fork, takeup spool and sprocket; and in which this control circuit starts an operation by the fork to rewind the film into the film magazine when the film magazine is loaded into the magazine chamber, stops the rewind operation when the film is rewound to a prescribed position, and then starts an operation by the sprocket to feed the film toward the takeup spool.

Abstract: In the camera according to the present invention, a magazine can be loaded into a magazine chamber in the direction along a winding shaft thereof in a state in which a film leader is wound thereon. During such magazine loading, the film leader is inserted along the outer periphery of a film guide disposed in the magazine chamber. After the magazine has been loaded, the film leader is temporarily rewound into the magazine. Then, it is fed toward a spool chamber. The film leader that has reached the spool chamber is advanced by the spool and film loading is completed. By employing such loading mechanism, it is possible to provide a camera incorporating a film loading mechanism with a simple structure which is capable of reliable film loading and making it possible, in cameras using 135-type film magazines, to load a magazine in the axial direction thereof.

Abstract: A camera having a data imprinting function, includes: a sprocket-hole detecting device for detecting when each consecutive sprocket hole of a film passes a predetermined position while the film is wound or rewound, the film being loaded into the camera; a data imprinting device for imprinting data on the film between two adjacent sprocket holes thereof; a film speed detecting device for detecting the speed of the film; and a controller for controlling the position of commencement of imprinting the data on the film between the two adjacent sprocket holes in accordance with the time of detection of the sprocket-hole detecting device and the film speed detected by the film speed detecting device.

Abstract: An electric current is supplied from a power source to a motor for transporting a film through a switching element (a transistor). A regenerate current is generated from the motor when the current supply is cut, and the regenerate current is returned to the motor through a switching element (a first MOS FET). The switching elements are turned on and off according to the state of a second MOS FET. When the second MOS FET is turned on, the transistor is turned on and the first MOS FET is turned off, and this drives the motor. When the second MOS FET is turned off, the transistor is turned off and the first MOS FET is turned on, and this stops the motor.

Abstract: This invention provides a camera with a data exposure function comprising: a dot LED; a film winding mechanism provided with a film feeding motor; a film winding operation detecting portion for outputting a motor pulse signal corresponding to a rotation of the film feeding motor; a perforation detecting portion for detecting a perforation to output a perforation signal; and a main microcomputer for determining a lighting interval pulse by counting the number of motor pulses during detection of plural perforations, calculating a correction time corresponding to a decimal portion of the lighting interval pulse with reference to the cycle of a motor pulse signal and controlling a lighting interval of the dot LED based on an integer portion of the lighting interval pulse and correction time.

Abstract: A camera and a cartridge indicator setting apparatus adapted to a film cartridge including an indicator operatively coupled to a film supply spool provided in the film cartridge. The camera and the cartridge indicator setting apparatus includes a storage device which stores information to be indicated by the indicator of the film cartridge; and a setting device for driving, in response to an operation for ejecting the film cartridge which has been loaded on the camera, the film supply spool of the film cartridge which has been stopped after completion of rewinding of a film, and for setting the indicator of the film cartridge in accordance with the information stored by the storage device.

Abstract: A manual-wind camera is provided having a wind lever in which a film having no sprocket holes is loaded, the film being wound on a take-up spool, frame by frame, by manually operating the wind lever. The camera includes a pulse generator which generates pulses in accordance with movement of the film wound by the wind lever, and a counter which detects and counts the pulses generated by the pulse generator, the pulse generator and the counter are connected to a control device. The control device detects a film winding speed of the film in accordance with the number of the pulses counted by the counter, wherein the control device adjusts a reference pulse number, which corresponds to a predetermined appropriate winding amount of the film, in accordance with a the film winding speed detected by the control device. An engagement of the wind lever with the take-up spool is released at the moment the adjusted reference pulse number becomes equal to the number of the pulses counted by the counter.

Abstract: An apparatus for coping with positional deviations of a film includes a determination circuit for determining a positional deviation of the film which is at a stop, a time measuring circuit for measuring time, and a positional deviation correcting part for correcting the positional deviation of the film in response to the determination circuit and the time measuring circuit.

Abstract: A camera using a roll film (Brownie film) having an identification mark, on one half of the width of the film strip, is provided with a pair of spool compartments in a camera body. The film can be loaded in one of the spool compartments. The film loaded in one spool compartment can be wound into the other spool compartment. The camera body is provided with a pair of code sensors, wherein at least one code sensor corresponds to the identification mark, regardless of the winding direction of said film.

Abstract: A camera has a motor, a camera mechanism driven by rotation of the motor, a detector for detecting the rotation direction of the motor, and a controller for driving the camera mechanism by energizing the motor in such a way that the motor rotates in a forward direction. To stop the motor, the controller energizes the motor in such a way that the motor rotates in a reverse direction and then, in response to a rotation direction inversion detecting output fed from the detector, energizes the motor in such a way that the motor rotates in the forward direction again for a predetermined period of time.

Abstract: A camera for thrusting a film from a film cartridge by rotationally driving a spool in the film cartridge has a measuring construction for measuring the amount of the film thrust from the film cartridge, a sensing construction for sensing the position of a leader of the film thrust from the film cartridge, and a determining circuit for determining whether the film is moving properly, based on the measured thrust amount of the film and the sensed position of the leader of the film.

Abstract: In a film feed device using a film having two perforations per frame, a perforation width and a perforation interval which are detected by one perforation sensor during a film feed operation are measured as times by timers in a microcomputer or as film moving amounts by a perforation detection circuit. When the time or the film moving amount measured as this perforation interval is less than the value obtained by multiplying the perforation width by a predetermined value, the film feed operation is stopped by a motor driving circuit and a motor. With this operation, even if the film position deviates from a predetermined position at the start of a film feed operation, the film can be accurately aligned with a correct position by using one perforation sensor.

Abstract: Apparatus for enhancing signal-to-noise ratio in reading a film magnetic recording part includes a reproducing device which reproduces a signal recorded on the magnetic recording part of the film and a signal processing device which performs at least one of causing the reproducing device not to reproduce the signal and disabling the signal reproduced by the reproducing device, in at least one of a case where a predetermined signal is included in the signal reproduced by said reproducing device during transportation of the film and a case where the presence and time position of the predetermined signal in the signal reproduced by said reproducing device during transportation of the film are predicted.

Abstract: A film position detection apparatus and a method for precisely detecting a film position are provided. An image film projection apparatus is also provided for correcting deflections of images through precisely detecting a film position and thereby projecting images recorded on the film in a good condition. A film position detection means has a ground electrode attached to a movable picture gate; detection electrodes placed in a fixed picture gate; and auxiliary electrodes placed around the detection electrodes. The auxiliary electrodes suppress erroneous variations in electrostatic capacitance generated between the ground electrode and the detection electrodes. As a result, accuracy in film position detection by the detection electrodes is improved for achieving precise detection.

Abstract: An apparatus capable of using a film cartridge in a manner that a lead portion of a film contained in the cartridge is fed out therefrom by the film thrusting, wherein a controller judges that an initial loading is not executed normally when a perforation is not detected although a fed film amount on an initial loading reaches a first predetermined amount, and stops a detector from detecting a perforation until the fed film amount reaches a second predetermined amount which is less than the first. Thus, a detector does not wrongly detect a notch on a film's lead portion as a perforation, and a leading frame is fed normally with a reliable judgment on an initial loading.

Abstract: An apparatus for transporting a film in an APS camera and for magnetically writing data on the film includes a release switch, a single perforation sensing unit, a controller, a film transporting unit, and a data writing unit. After a frame of the film is exposed, the controller starts to write data after a first perforation is sensed and stops the film transport operation after a second perforation is sensed. The controller decreases a pulse period of a transport signal controlling the film transport operation when the second perforation is being sensed, and stops to output the signal after the second perforation has been sensed.

Abstract: An apparatus, such as a camera, adapted for a film having an information recording part, includes a recording device which records information on the information recording part of the film, an operation device which issues an instruction for rewinding the film, and a changing device which changes, in response to the film rewinding instruction issued by the operation device, the information recorded on the information recording part of the film by the recording device.

Abstract: A camera for use with a Brownie roll film having a bar code containing data about a roll film, such as a film speed and a roll film type. The bar code is printed on an adhesive tape which secures light-shielding paper to a leading end of a photo filmstrip of the roll film. As soon as the roll film is loaded with its leading end of the light-shielding paper secured to a take-up spool of the camera, the camera starts rotating the take-up spool and, simultaneously, a reflective photo sensor starts scanning. Based on output signal from the photo sensor and the transport amount of the filmstrip, a first frame exposure portion of the filmstrip is automatically positioned behind an exposure aperture. The number ofavailable exposures is derived from the roll film type data read from the bar code, and is displayed on an LCD panel. An automatic exposure control is effected while taking the film speed read from the bar code into consideration.

Abstract: An APS (Advanced Photo System) film of new type has a plurality of image recording areas along the center thereof, a first longitudinal side edge of the film is formed to have perforations corresponding to the image recording areas, and a second longitudinal side edge of the film is formed to have optical information recording areas corresponding to the image recording areas. While the APS film is being conveyed in its longitudinal direction the perforations are sensed and optical information in the optical information recording areas is read with the sensed perforations serving as a reference.

Abstract: A film position detection apparatus and a method for precisely detecting a film position are provided. An image film projection apparatus is also provided for correcting deflections of images through precisely detecting a film position and thereby projecting images recorded on the film in a good condition. A film position detection means has a ground electrode attached to a movable picture gate; detection electrodes placed in a fixed picture gate; and auxiliary electrodes placed around the detection electrodes. The auxiliary electrodes suppress erroneous variations in electrostatic capacitance generated between the ground electrode and the detection electrodes. As a result, accuracy in film position detection by the detection electrodes is improved for achieving precise detection.

Abstract: A camera is used with a Brownie photo film, which has a photo filmstrip on which plural frames are formable serially. A light-shielding leader is disposed on a front end of the photo filmstrip. A light-shielding trailer is disposed on a rear end of the photo filmstrip. The Brownie photo film is wound about a supply spool with the trailer positioned inside and with the leader positioned outside. In the camera, a photo film supply chamber is formed for loading of the Brownie photo film. A photo film take-up chamber has a take-up spool disposed in a rotatable manner, for winding the Brownie photo film from the photo film supply chamber. The take-up spool has a spool core, and an insertion slit for receiving insertion of the leader through the spool core. A drive shaft in the photo film supply chamber rotates the take-up spool, to transport the Brownie photo film to the photo film take-up chamber and wind the Brownie photo film about the take-up spool. A motor rotates the drive shaft.

Abstract: A film feed apparatus detects the feed speed of a film having one perforation formed in a leader, and two perforations respectively formed at positions corresponding to the leading and trailing ends of each photographing frame. The apparatus includes a driving source for feeding the film, a sensor for detecting the passage of the perforation when the film is fed, a time measuring circuit for measuring the time between the instant at which the sensor detects the passage of the first perforation positioned at the leader (or the leading end of the photographing frame) and the instant at which the sensor detects passage of the second perforation positioned at the leading end of the photographing frame (or the next photographing frame), and an arithmetic circuit for calculating the feed speed of the film on the basis of the measurement result obtained by the time measuring circuit.

Abstract: In a film feed device using a film having two perforations per frame, a perforation width and a perforation interval which are detected by one perforation sensor during a film feed operation are measured as times by timers in a microcomputer or as film moving amounts by a perforation detection circuit. When the time or the film moving amount measured as this perforation interval is less than the value obtained by multiplying the perforation width by a predetermined value, the film feed operation is stopped by a motor driving circuit and a motor. With this operation, even if the film position deviates from a predetermined position at the start of a film feed operation, the film can be accurately aligned with a correct position by using one perforation sensor.

Abstract: When exposure of the entire film is completed, the time period until rewinding is begun is read from an EEPROM and set in a timer, and the timer is then started. If the switch to change the data recorded before the time period set in the timer elapses is switched to ON, revision mode to rewrite the print number data for the final frame is entered. If the switch to perform revisions is not operated during the time period set in the timer, and the set time period elapses, or if the rewind switch is switched to ON before the time period set in the timer elapses, the film is rewound and camera operation is completed with the completion of rewinding.

Abstract: An apparatus for magnetically recording photographic data for an advanced photo system camera comprises a film transport sensing unit for sensing perforations in a film and for generating a signal per each perforation, an operation control unit for controlling the operation of the magnetic recording according to the signal from the film transport sensing unit, and a magnetic recording unit for magnetically recording photographic data on the film, based on the signals from the operation control unit. The apparatus further comprises a film transport unit for advancing successive frames of the film according to the signals from the operation control unit.

Abstract: A camera provided with a magnetic head for effecting at least one of writing information into a magnetic portion of a film and reading information from the magnetic portion. The camera includes a detection circuit for detecting a feed speed of the film and a prohibiting circuit for prohibiting a photographing operation of the camera when the feed speed of the film detected by the detection circuit is lower than a predetermined speed.

Abstract: A power drive device is disclosed that includes a motor, a control device coupled to the motor, and a rotatable reference axle member rotatably interlocked with the rotation of the motor. A first detection member detects a first phase and a third phase of rotation of the reference axle member wherein the first phase corresponds to a rotation starting position of the reference axle member and the third phase corresponds to a near completion position of the reference axle member. The device also includes a second detection member that detects a second phase and a fourth phase of rotation of the reference axle member, wherein the fourth phase of rotation corresponds to a rotation completion position of the reference axle member. The control device drives the motor in accordance with the detected phases of the first and second detection members, and in particular, can control the velocity of the motor and the timing of the operation of the motor in relation to a second motor.

Abstract: A film driving circuit that is capable of normal driving and reverse driving to drive-control a first motor and a second motor each rotating in only one direction. The motor driving circuit is structured so the first motor driving and the second motor driving is controlled by four switching elements composing a bridge circuit. The first motor connects to the connecting points of two of the switching elements. The second motor connects to the connecting points of the other two of the four switching elements. A CPU controls the first motor and the second motor by controlling the on-off status of the four switching elements.

Abstract: A camera is provided having a film transport device that performs accurate detection of an end of film, even if there is a change in the electric power voltage or film transport mechanism load, e.g., because of a temperature change in the camera. The film transport device includes a film advance device that winds the film onto the spool of a camera, a motor, and first and second edge detectors that detect perforations in the film by detecting edges of the perforations. The film perforations are arranged before and after the film frame in a direction of the film advancement. A film transport controller stops the winding of the film by the film advance device when the film transport controller determines that the film has been wound to its end. The film transport controller determines that the film end has been reached when a perforation is detected by the first edge detection device prior to the detection of a specified number of perforations by the second edge detection device.

Abstract: A camera, which uses a film with a magnetic memory portion, or a control apparatus for such a camera, includes a first detection sensor for detecting a perforation of the film, arranged at a first position where the perforation of the film passes, a second detection sensor for detecting the perforation of the film, arranged at a second position where the perforation of the film passes and which is shifted from the first position in the direction in which the film is transported, and a control circuit for determining a starting time, a first stopping time, a writing frequency of writing information to the magnetic memory portion of the film, and a second stopping time to stop transporting the film, in response to the first and second detection sensors.

Abstract: A camera has a feeding motor by use of which photo film is fed. 24 groups of perforations are arranged along one edge of the photo film, and regularly at a distance L2 one group from another. Each of the perforation groups is associated with one frame, and includes two perforations arranged at a distance L1 therebetween. To control the photo film feeding, pulses are generated in synchronism with the photo film feeding. The perforations are detected through a sensor. The pulses are counted while the photo film is fed by the distance L1 or L2, and during a period started upon movement of a first one of the perforations past the sensor and finished upon detection of a second one of the perforations at the sensor. A counted number of the pulses is compared with a reference value upon finish of counting the pulses. If the counted number is equal to or more than the reference value, the feeding motor is decelerated.

Abstract: A film feeding cessation adjusting device for cameras is capable of accurately stopping to a predetermined stopping position each frame of a film having a minimum number of perforations in order to ensure a sufficient data recording area. The film feeding cessation adjusting device includes a film feeding device for feeding a film, a perforation detection device for detecting a perforation of the film, a timer device for measuring a time required for film feeding, a stopping signal generating device for obtaining a time which is delayed by a predetermined period from the time at which the perforation detection device detects the perforation, on the basis of the results of the measurement of the timer device and for generating a feeding stopping signal at the obtained time, and a control device for stopping film feeding of the film feeding device when it receives the feeding stopping signal.

Abstract: This invention relates to a camera for reading out and/or reading information from a magnetic recording portion provided to a film using a magnetic head.This invention provides a camera, wherein the film feed speed until the film passes the head position is set to be lower than a predetermined speed, so that the film can be prevented from colliding against the head portion with a shock.

Abstract: Apparatus for use in an automatic film winding camera for determining, during film loading, the presence of a film leader portion having a notch therein. First and second film perforation sensors positioned apart along a film advancing path of the film in first and second sensor positions are enabled and disabled in a sequence in which the first and second sensors successively detect the advancement of the film's leading edge at the first and the second sensor positions. The first sensor is then enabled for sensing the film perforations when the notch in the film leader portion is positioned between the first and second sensor positions.

Abstract: A camera has a recording apparatus for magnetically recording finished photograph information, indicating exposure of a film frame, and for magnetically recording other photograph information for each film frame. The finished photograph information is recorded at a designated film area, while a film feed motor is in a transient speed state. Other photograph information is recorded in a designated film area when the film feed motor speed is constant. Appropriate positioning of the designated recording areas for recording information therein is determined by counting film perforations or by measuring a period of time during film feed subsequent to an exposure.

Abstract: An information recording device of a camera permits recording of more information with an appropriate recording density without monitoring the film feeding speed constantly. The information recording device includes a feeding assembly to feed film mounted in a camera by a motor. A recording assembly records photographic information in the film recording area during film feeding. A feeding speed control assembly starts duty-driving of the motor to reduce the film feeding speed at the first timing and to stop the motor to halt film feeding at a later second timing. The recording control assembly permits recording of the photographic information by the recording assembly until a third timing that is later than the first timing but earlier than the second timing.

Abstract: A camera equipped with a device, for photoelectrically detecting perforations formed in a film margin, which comprises two elements, one of which is disposed in a space with at least one end slope formed between inner and outer film guide rails so as to keep a film traveling across the back of the camera away and isolated from coming into contact with the element.

Abstract: A film feeding cessation adjusting device for cameras is capable of accurately stopping to a predetermined stopping position each frame of a film having a minimum number of perforations in order to ensure a sufficient data recording area. The film feeding cessation adjusting device includes a film feeding device for feeding a film, a perforation detection device for detecting a perforation of the film, a timer device for measuring a time required for film feeding, a stopping signal generating device for obtaining a time which is delayed by a predetermined period from the time at which the perforation detection device detects the perforation, on the basis of the results of the measurement of the timer device, and for generating a feeding stopping signal at the obtained time, and a control device for stopping film feeding of the film feeding device when it receives the feeding stopping signal.