Abstract: The present invention relates to a power source used in a camera having a circuit for detecting a focused condition determining the distance at which the focused condition is established. The invention is particularly suited; for preventing careless opening of the power source by providing an operating member on the lens barrel or a light or temperature sensing element either in the lens barrel or in the view finder respectively. In this manner the power supply switch is functionally engaged in the operating member or operates in response to the output of either the light or temperature sensing element so as to close the current supply circuit.

Abstract: The present invention is directed to an operation detecting device of a camera for detecting the operation of an operation member such as the shutter member. The operation detecting device functions by detecting the electrical signal produced at the time at which a closed magnetic circuit is opened when a magnet operates so as to actuate or release the operation member.

Abstract: In a camera having an electric motor and a flash device incorporated within the housing thereof, in order that simultaneous electrical power supply to the motor and the flash device from one and the same battery never occurs, there are provided a switch cooperative with a shutter button upon depression to inhibit electrical power supply to the flash device, and another switch arranged to be closed when each cycle of film winding operation is completed, thereby the motor is disconnected from the battery and the flash device is connected thereto.

Abstract: In the disclosed folding camera, a built-in flash is disabled and displaced into an inoperative position within the regular contours of the camera housing when the housing is folded. When the housing is extended, the flash may be set either in an operative enabled position outside the regular housing contours or in the inoperative disabled position within the contours.

Abstract: In the disclosed camera exposure control device, a first control automatically controls the camera exposure on the basis of a signal generated by a first brightness sensor. A second control automatically controls an exposure on the basis of a manual setting that responds to a second brightness sensor. A mode selector enables either an electromagnetic actuator that operates the first exposure control or a mechanical actuator that operates the second control.

Abstract: A camera wherein a front housing which contains a photographing optical system, an exposure device, etc. is connected by a foldable connecting device such as a bellows or the like to a rear housing which contains a photosensitive material to be exposed to light, a view finder optical system, etc. During photographing, the foldable connecting device is stretched to adjust the distance between the front and rear housings to a distance suitable for photographing. When the camera is not in use, the connecting device is contracted to being the front and rear housings very close to each other. An electrical wiring arrangement of a flexible material is either provided on the surface of the bellows or formed together with the bellows as an integral part of the bellows when it is formed in such a way as to be stretchable and contractable together with the bellows, the wiring service to electrically connect the components disposed in the front housing to those disposed in the rear housing.

Abstract: A camera comprises an exposure meter having a pointer deflected to a position dependent upon the brightness level of an object to be photographed, a scanning mechanism actuated by a camera release to scan the position of the deflected pointer with the scanning result being introduced to a lens aperture mechanism, an automatic focus adjusting device actuated by the camera release to control the focusing of an objective lens in accordance with a photoelectrically sensed distance from the camera to the object, and a control mechanism. Since the photoelectric elements in measuring the object distance have a relatively long time lag, the control mechanism functions upon actuation of the camera release to defer the actuation of the scanning mechanism and the autofocusing device, pending completion of the detection of the object distance. In this manner, an exposure setting accurately corresponding to the prevailing lighting conditions is obtained.

Abstract: A data recording camera capable of recording a data image on film as well as observing the data image through the view finder is disclosed. A beam splitter directs the light beam coming from the data to the film and view finder. The inner surface reflector of the beam splitter forms a ghost beam which forms a ghost image of the data on the film. The ghost image of the data is removed by a polarization filter (polar screen), wedge prism or thick glass plate.

Abstract: The present invention relates to a camera using a photo-sensitive sheet material of self developing process type, which can actuate a photo-sensitive material take out device to take out the exposed photo-sensitive material sheet material to outside of the camera while conducting self developing process thereon, selectively by an electric motor or manually, and has a checking device to check whether or not the voltage of a battery to drive said electric motor is at a level to be able to properly activate said photo-sensitive material take out device, further has a means to direct to stop power supply to said motor when the voltage of said battery is below said level and to activate said photo-sensitive take out device manually.

Abstract: In an instant, self-developing, and folding camera, a built-in flash unit is disabled as long as the camera is folded. According to another aspect, the flash is disabled after each photograph until the feed motor that drives the film during development has completed its operation. A collapsible bellows forms a dark space between first and second housing sections. When the bellows are folded the flash is drawn to the first section by coupling means. When the bellows are extended the coupling means draws the flash into an operative position.

Abstract: A camera having a data recording device wherein there are provided an optical path for photographic insertion of data and an optical path for displaying data. Each of these optical paths has a light inlet disposed, independently of the other, in the same light flux emitted from a data source. Photographing data are photographically applied to a film surface and are also displayed inside a view finder by means of a data signal of light which is introduced directly into each of the optical paths.

Abstract: A camera having an electronic flash unit either incorporated therein or removably attached thereto is provided with a flash mode selector and a flash energy supply control switch both arranged to be rendered operative when the shutter cocking lever is pulled from the retracted position to an initial position effective for shutter cocking operation, and, upon detection of occurrence of a lower light value beyond an automatically operating daylight diaphragm aperture range, to be simultaneously closed in automatic response to an actuation of a shutter release trigger in excess of a normal stroke length. This is done while still preventing the shutter from running. When the voltage on a storage capacitor reaches a trigger level for the flash tube in a time interval measuring from the closure of the switch, a flash exposure diaphragm aperture is automatically formed depending upon the flash exposure value and the voltage of the storage capacitor.

Abstract: A flash unit is slidable between a retracted position in a camera body and a pop-up position outside the body. A switch enables a flash exposure control in response to movement of the flash unit out of the camera body and disables the exposure control when the flash unit is moved into the camera body. An override switches the switch to the disabling position when the flash unit is moved outside of the body and forms a discharge circuit for the flash main capacitor.

Abstract: The present invention relates to a power source used in a camera having a circuit for detecting a focused condition determining the distance at which the focused condition is established. The invention is particularly suited, for preventing careless opening of the power source by providing an operating member on the lens barrel or a light or temperature sensing element either in the lens barrel or in the view finder respectively. In this manner the power supply switch is functionally engaged in the operating member or operates in response to the output of either the light or temperature sensing element so as to close the current supply circuit.

Abstract: The present invention relates to an exposure control device for a camera for obtaining a proper exposure taking the differences of the films to be used into consideration, so designed that an exposure amount control circuit for controlling an exposure amount by means of a first light measuring circuit for measuring the light reflected from the film plane is provided, while a second light measuring circuit for measuring the light reflected from the shutter plane and/or the film plane is provided in such a manner that by means of the output of the second light measuring circuit the control output value of the exposure amount control circuit is compensated so as to obtain a proper exposure amount.

Abstract: In the disclosed arrangement, an energy storage device such as a capacitor is discharged through a flash lamp. A sensing device produces a signal when the storage voltage is sufficient to fire the lamp. A switchover device normally permits the shutter and exposure aperture to be set for daylight operation, but automatically responds to the signal to switch the shutter speed and the exposure aperture to suitable values for flash operation.

Abstract: In an automatic focusing screen unit transparent photoelectric transducing means at a central portion of the image receiving surface area of a glass plate are capable of generating an output signal commensurate with the sharpness of an image formed thereon by an objective lens of a camera. An electrical circuit for processing the output signal of the transducing means produces an output during sharp focus. In a preferred embodiment, this circuit is constructed in the form of an integrated circuit chip for incorporation in the unit together with indicating means responsive to the output signal of the circuit for indicating a sharp focus condition.

Abstract: The present invention relates to an aperture setting device for camera at the time of photographing under day light as well as under flashlight. The device presents an aperture setting ring rotatable from the range of photographing under daylight to that under flashlight, being switched over according to the then photographing conditions, an information setting means to be moved according to the set information for photographing under flashlight such as information of the distance and an aperture ring for setting aperture, whereby the aperture ring is moved in engagement with the aperture setting ring in case the aperture setting ring is set for the range of photographing under daylight while the aperture ring is moved in engagement with the information setting means in case the aperture setting ring is set for the range of photographing under flashlight. In this way the aperture is set for photographing under daylight as well as under flashlight.

Abstract: The disclosed automatic flash photography apparatus operates with a camera having a shutter in which a diaphragm blade serves as a shutter blade, and the diaphragm diameter is varied by varying the time interval from the moment its blades start opening till the moment they start closing. A switch switches over between separate time constant circuits, one for artificial-light photography, the other for natural-light photography. For flash photography, a resistor which is variable in response to the distance from a light source to an object and the film sensitivity controls the time constant circuits for closing the diaphragm blades. Thus a flash device is illuminated and the amount of light passing the diaphragm aperture is established.