摘要:
A camera is disclosed which is capable of winding and rewinding a film and adjusting a focal distance by use of a single motor. In the camera, the forward rotation of the motor is used to wind the film, and when the film winding operation is completed after termination of photographing, on detecting the end of the film, a torque detect mechanism switches a planetary clutch mechanism to connect the motor with a film rewinding mechanism. Thus, it is possible to perform both the film winding and rewinding operations by use of the rotation of the motor in the same direction. Also, when, with the planetary clutch mechanism connected with the film winding mechanism, the motor is rotated reversely, then the power transmission system is switched over to a focal distance varying mechanism, whereby the focal distance can be adjusted.
摘要:
A display arrangement for the charging condition in a strobing circuit of a photographic camera with a built-in strobe-flash device includes a display lamp, serving to indicate that charging in the strobing circuit has been completed, and a controller for a main switch of the camera. The display lamp is covered by the controller as the controller is moved to turn the main switch OFF, and uncovered again as the controller is moved to turn the main switch ON, in order to bring the camera in a state ready for photographing. Thus, the display lamp is invisible even though the display lamp is on when the main switch is in the OFF state. In this manner, the strobing circuit can be arranged so as to be always charged, and thereby to make charging in the strobing circuit independent from the ON-OFF state of the main switch.
摘要:
A camera has a spool drive shaft disposed to project from an inside of a cassette holder chamber, connected with a spool of a photo film cassette coaxially, to feed a photo film from a cassette, and to wind the photo film back into the cassette. A sun and planet gear mechanism includes a sun gear for rotating in a first direction in response to forward rotation in a first direction in response to forward rotation of a motor, and for rotating in a second direction in response to the backward rotation of the motor. A feeding planet gear and returning planet gear are meshed with the sun gear. Two feeding transmission gears are meshed with the feeding planet gear for rotating in the first direction in response to forward rotation. A returning transmission gear is meshed with the returning planet gear for rotating in the first direction in response to backward rotation, to cause a spool drive shaft to rotate in the winding direction. The two feeding transmission gears and returning transmission gear are disposed coaxially with one another.
摘要:
A photographic camera has a cartridge chamber in which is loaded a film cartridge having a roll film entirely rolled to its leading end around a spool in a cartridge body and a light-shielding shutter member for opening and shutting a film exit slit formed in the cartridge body, an entrance opening to the cartridge chamber, and a chamber lid which is mounted on the camera to be moved between an opening position where it opens the entrance opening and a closed position where it closes the entrance opening. A shutter lock member moves to a shutter locking position, where it prevents release of the shutter of the camera, in response to operation of a rewind button. A holding member holds the shutter lock member in the shutter locking position, and a release member causes the holding member to release the shutter lock member after closure of the light-shielding shutter member of the film cartridge in response to opening of the chamber lid.
摘要:
The present invention provides a camera enabling effective use of parts retrieved from a used lens-mounted film. Members retrieved from a lens-mounted film and responsible for film feed and release operation; such as, a sprocket, a sprocket axis with a charge cam attached, a drive lever, and a locking lever are mounted in a camera as they are. A release mechanism is included to release a frame stop state set for frame-by-frame film feed and a state in which the turn of a film wind knob is disabled, whereby film rewind is enabled. A strobe circuit board containing a strobe flashing unit and a control circuit is recycled for a camera permitting film rewind. In this case, a flashing capacitor mounted on the retrieved strobe circuit board is angled at lead wires so that the flashing capacitor can be placed in any state different from the one in a lens-mounted film. Moreover, electric connections for the retrieved strobe circuit board are made readily by adding coupling means having contacts and connecting the strobe circuit board to a battery via the coupling means.
摘要:
After loading a film cassette into a cassette chamber, a lid of the cassette chamber is closed. Interlocking with the lid, a lid lock member is moved to a lock position to lock the lid. When the lid lock member is moved to the lock position, a shutter lock member allows to operate a shutter release button. When the shutter release button is operated, a shutter is driven and a photo film is advanced. When the lid lock member is moved to an unlock position, the lid is opened. When the cassette chamber is opened, the shutter lock member prevents the operation of the shutter release button to prohibit the advancing of the photo film.
摘要:
A film initial-advance apparatus for a camera which enables the initial advance of a film by a reciprocating feeding claw, and in which a gear train for film feeding and driving members are disposed on the same side of a spool. A feeding member is disposed on a reciprocating driving member which reciprocates in the direction of film feeding. A gear train for feeding the film is connected to the driving gear on the side of the reciprocating driving member, and the rotational driving force of the driving gear is transduced to the reciprocating movement for reciprocating the reciprocating driving member. A cam groove is formed in the reciprocating driving member, and the feeding claw is advanced toward and withdrawn from a perforation of the film. The speed of the reciprocating movement of the reciprocating driving member is set to be lower than the film feeding speed.
摘要:
A camera includes a cassette holder chamber for receiving insertion of a photo film cassette. A take-up chamber takes up photo film drawn from the photo film cassette. An exposure chamber is disposed between the cassette holder chamber and the take-up chamber, for introducing object light to the photo film to provide an exposure. A part holder chamber is disposed between the cassette holder chamber and the exposure chamber. A main capacitor for flash emission has a tubular shape, and is contained in the part holder chamber. A through opening is formed between the cassette holder chamber and the part holder chamber, for internally connecting the cassette holder chamber and the part holder chamber to one another.
摘要:
A camera, which is loaded with a film cartridge having a light lock door for closing and opening a film egress/ingress slot and an indicator attached to a cartridge spool for providing a visible indication that a filmstrip in the cartridge is exposed at a specific angular position of rotation of the cartridge spool, is provided, at the bottom of a cartridge chamber of the camera, with a bottom lid for opening and closing the cartridge chamber and a lock/unlock key movable between lid lock position and a lid unlock position. The movement of the lock/unlock key toward the lid unlock position is accompanied by rotation of the cartridge spool into the specific angular position and movement of the light lock door to the film egress/ingress slot closed.
摘要:
A lens barrel for a zoom lens having front and rear lens groups has a rotary barrel which is rotatable about the optical axis and moves the front lens group in the direction of the optical axis in response to its rotation. A focusing cam groove formed on the inner surface of the rotary barrel guides the rear lens group to focus the zoom lens in response to rotation of the rotary barrel, and a zooming can groove formed on the inner surface of the rotary barrel in parallel to the focusing cam groove guides the rear lens group to zoom the zoom lens in response to rotation of the rotary barrel.