摘要:
This invention is applicable to a camera having a cartridge chamber into which a film cartridge is detachably insertable along its axis direction. The camera is equipped with a cartridge-load detection switch for outputting a load signal when the cartridge is loaded in the cartridge chamber, and outputting a non-load signal when the loaded cartridge is drawn out from the cartridge chamber by at least a predetermined amount. When the photographed cartridge is partially drawn out from the cartridge chamber and then reloaded into the cartridge chamber as it is, the output of the load signal is continued if the draw-out amount is below the predetermined amount, thereby preventing an erroneous judgment that a new cartridge is loaded into the cartridge chamber. Therefore, for example, the double exposure can be prevented.
摘要:
The present invention is directed to a camera having a cartridge chamber, which is formed as a hole in the body of the camera, into which a film cartridge is inserted along its axial direction through an access opening of the hole. The cartridge has an identifying mechanism for indicating whether the film in the cartridge has been used. The camera includes a load prevention member provided in the cartridge chamber that engages the identifying mechanism of the cartridge and prevents insertion of the cartridge into the chamber when the identifying mechanism indicates that the film has been used. The camera also includes a signal output circuit for outputting a load signal when the cartridge is loaded into the cartridge chamber and a non-load signal when the cartridge is unloaded from the cartridge chamber. The signal output circuit outputs the load signal before the cartridge engages the load prevention member.
摘要:
An electronic camera includes: an image-capturing element that captures an image formed with subject light; a shielding member that allows the subject light to pass through to the image-capturing element or blocks the subject light; a first electromagnetic actuator used for opening/closing drive of the shielding member; a holding member that holds the shielding member at least either an open state in which the shielding member allows the subject light to pass through or a closed state in which the shielding member blocks the subject light; a second electromagnetic actuator used for holding drive and hold release drive of the holding member; and a control device that controls driving of the first electromagnetic actuator and the second electromagnetic actuator.
摘要:
A shutter device includes: a base plate having a photographic aperture and a front surface and a rear surface; a shutter blade group that closes and opens the photographic aperture to light; a rear cover having an opening portion that corresponds to the photographic aperture, provided to the rear surface of the base plate with the shutter blade group between the rear cover and the rear surface of the base plate, and having a front surface and a rear surface; and a reflection prevention member fitted to the rear surface of the rear cover.
摘要:
An electronic camera comprises an image-capturing element; a recording device that records image data constituted of image capturing signals output from the image-capturing element into a data recording medium; a frame number calculating device that calculates a number of frames of image data that have been recorded or can be recorded into the data recording medium; a display device at which the number of frames is displayed; and a control device that controls the display device so as to display at least the number of frames when a main switch is in an OFF state.
摘要:
Disclosed is a burner apparatus comprising an inner tube defining a second channel and an outer tube defining a first channel surrounding the inner tube air supplying means for supplying air to the first channel and the second channel, and gas supplying means for supplying fuel gas to the first channel and the second channel, either the first channel or the second channel being used as a main combustion channel and the other being used as a pilot combustion channel, the main combustion channel and the pilot combustion channel receiving the supply of fuel gas for combusting it. The burner apparatus including a common channel formed at one end of the inner tube and the outer tube for supplying the oxygen-containing gas to the main combustion channel and the pilot combustion channel. A common supply opening discharges the fuel gas of the gas channel in the common channel from the upstream side in the flow direction of the oxygen-containing gas of the pilot combustion channel to the upstream side in the flow direction of the oxygen-containing gas of the main combustion channel. A common shielding member adjusts the inflow amount of the oxygen-containing gas for a common gas supply area which extends in a discharging direction of the fuel gas from the upstream side in the oxygen-containing gas flow direction of the common supply opening and from this common supply opening to the common channel.
摘要:
Disclosed is a burner apparatus comprising an inner tube defining a second channel and an outer tube defining a first channel surrounding the inner tube, air supplying means for supplying air to the first channel and the second channel, and gas supplying means for supplying fuel gas to the first channel and the second channel, either the first channel or the second channel being used as a main combustion channel and the other being used as a pilot combustion channel, the main combustion channel and the pilot combustion channel receiving the supply of fuel gas for combusting it. The main combustion channel includes a mixing promoting member against which the fuel gas discharged from the first supply opening into the main combustion channel is collided to be diffused in the main combustion channel. Alternatively, the pilot combustion channel includes a mixing promoting member against which the fuel gas discharged from the second supply opening for supplying the fuel gas into the pilot combustion channel is collided to be diffused in the pilot combustion channel.
摘要:
A lid for a film cartridge chamber that can open and close in the direction of the spool shaft of a film cartridge that is loaded into a cartridge chamber. The lid of the cartridge chamber includes a movable component attached so as to be able to advance into or retract from a loading/extraction path of the film cartridge when the lid is opened to a position at which the film cartridge can be extracted from the cartridge chamber. The movable component is acted upon by a forcing component so as to advance the movable component into the loading/extraction path.
摘要:
A film feeding apparatus in a camera comprises a feeding device for feeding film from a film cartridge, a take-up spool device for taking up the film fed by the feeding device, and a judgment device for judging on the basis of a variation in the movement speed of the film whether the film has been taken up by the take-up spool. The movement speed of the film is determined by the feeding device before the film extending from the film cartridge is taken up by the take-up spool device, and the movement speed of the film is determined by the take-up spool device after the film has been taken up by the take-up spool device. The movement speed of the film driven by the feeding device differs from the movement speed of the film driven by the take-up spool device.
摘要:
A winding/rewinding apparatus for a camera comprises a winding spool on which a film advanced thereto is wound when the winding spool rotates; a rewinding shaft for engaging a spool of a film cartridge loaded into the camera so as to rotate the spool; a motor; a transmission for transmitting the drive force of the motor to the winding spool and the rewinding shaft so as to advance the film from the cartridge to the winding spool, the transmission transmitting the drive force of the motor so that a speed at which the film is advanced by the rewinding spool is higher than a speed at which the film is advanced by the rewinding shaft; and a clutch which disengages so as not to transmit the drive force of the motor to the rewinding shaft when the rewinding shaft is driven at an increased speed by the film which is being wound by the winding spool.