摘要:
In the disclosed camera, which is operable with a rechargeable electronic flash and an automatic winding mechanism, a photographic mode selector is arranged to switch from a continuous photographic mode in which successive photographs are taken as long as the shutter button is depressed to a single photographic mode in which a single photograph is taken every time the shutter button is depressed, in response to the rechargeable electronic flash being set to an operative condition.
摘要:
A camera exposure mode setting device including a dial which can be moved to select a number of different exposure modes, one of which is controlled by a self-timer circuit in the camera. The device also includes circuitry coupled to the dial which operates to prevent the self-timer circuit from operating unless the dial is maintained in a self-timer exposure mode position. In a preferred embodiment, a push button extends from the dial, the button being arranged to prevent the dial from being moved to select the self-timer mode unless the button is first pushed down by the user.
摘要:
A camera exposure mode setting device including a dial which can be moved to select a number of different exposure modes, one of which is controlled by a self-timer circuit in the camera. The device also includes circuitry coupled to the dial which operates to prevent the self-timer circuit from operating unless the dial is maintained in a self-timer exposure mode position. In a preferred embodiment, a push button extends from the dial, the button being arranged to prevent the dial from being moved to select the self-timer mode unless the button is first pushed down by the user.
摘要:
A picture image recording device using a recording medium which permits setting a plurality of recording tracks separately from each other for recording picture image signals on each of them. In the improvement made by this invention, the operating mode of the device is shiftable at least between two modes including a first mode in which image recording is performed only on one recording track and a second mode in which image recording is performed continuously or sequencially on a plurality of recording tracks.
摘要:
A voltage detecting means is provided in a flash lamp firing circuit for detecting the attainment of the voltage of a storage capacitor to a satisfactory lamp firing voltage level to assure that a photographic camera associated with the flash lighting unit operates in a flash exposure range switched from a daylight exposure range only when a sufficient voltage is available to fire the lamp at the time of striking of the lamp. In one embodiment, the detecting means comprises two transistorized circuits having output terminals one of which is connected to the gate lead of a SCR in a discharge circuit of the lamp, and another output terminal which is arranged to be connectable to a light-emitting diode of the camera and therefrom connected to the gate lead of an electronic change-over switch for selection of the operating ranges of the camera, the light-emitting diode being arranged to be visible from the outside of the camera so that the operator is immediately aware if the storage capacitor voltage has attained the satisfactory firing level.
摘要:
In the disclosed device, a signal forming circuit produces a signal having a frequency corresponding to the voltage of a power source. A level detector detects the level of the voltage of the power source and is arranged to produce a signal when the voltage of the power source drops below a predetermined level. A control circuit coupled to the signal forming circuit is arranged to change the frequency of the signal produced by the signal forming circuit in response to the signal produced by the detector. An indicator operates at the frequency of the signal produced by the signal forming circuit. In a specific embodiment, a detector detects whether the voltage of a battery is at and below a first level, between the first level and a second higher level, and at and higher than the second level. A signal former responds to the detector for producing a first signal having a frequency below a first frequency when the voltage is below the second level, a second signal having a frequency twice the first frequency when the voltage is at the second level, and a signal having a frequency higher than the frequency of the second signal when the voltage is above the second level. An indicator responds to the signal former to operate at the frequency of the signal former.
摘要:
The present invention relates to a camera with the main circuit boards and the sub-circuit boards comprising electrical circuit constructions having resistance-conductor laminated constructions so designed that the insulating support on which a resistance material layer and a conductor material layer are laminated are processed by means of selective etching. This is done in such a manner that the resistance members are constituted with the resistance material layer while the conductor parts such as wiring, terminals and so on are constituted with the conductor material layer.
摘要:
The present invention relates to a camera having a sound-making element provided at a suitable position thereof in which sound signals are used as warning signals or confirming signals for operation of a self-timer.Sound control of said sound-making element is done by using counting signals of a binary counter which digitally controls the camera.Sound signals as warning signals and those as confirming signals for operation of a self-timer are distinguished by a difference in oscillation pulses.
摘要:
A digital camera with five automatic exposure modes is provided with corresponding individual cards upon selective insertion into the camera to effect the operation of either or both of the shutter and diaphragm in accordance with the digital output of a computer through logic selection circuits as the mode information on the inserted card is read into a binary coded decimal counter controlling operation of the logic circuits. When the card is absent from the camera, a first controlling push button for sequential display of the modes is rendered effective to pass a pulse train to the counter so that upon release of the button, the current mode displayed can be set. The card further includes information relating to the determination of whether or not to give a sound warning signal which occurs, in one embodiment, when the film nears the terminal end of footage. In another embodiment, the buzzer is utilized to assist in releasing not only a first but also an additional three buttons for setting exposure factors and a number of film frames available just after a desired symbol or digital value appears in the display as they are sequentially presented.
摘要:
A single lens reflex camera capable of the high speed continuous photographing. It achieves high speed continuous photography by means of an automatic winding up device, designed so that, in order to shorten the photographing time, the mirror and the diaphragm are kept in the state wherein the first photograph is taken during the continuous photography.