Abstract: A power supply device in a camera system having an accessory arranged to be mountable and dismountable on and from a camera body which includes a power source. The camera body includes an electronic circuit arranged to communicate with the accessory by a first connection terminal arranged to permit a first power supply to the accessory, a second connection terminal arranged to permit a second power supply to the accessory, a third connection terminal arranged to permit communication with the accessory, and a detector for detecting mounting of the accessory on the camera body.

Abstract: A connector for a camera having a camera body side mount and a rotatively mountable-dismountable type optical accessory side mount capable of being coupled and uncoupled by the rotation thereof relative to the camera body side mount and in which a plurality of camera body side connection terminals are formed on the peripheral area of the camera body side mount and a plurality of optical accessory side connection terminals adapted to contact the camera body side connection terminals during rotative coupling are formed on the peripheral area of the optical accessory side mount to thereby enable the communication therebetween includes at least one level difference provided at the height of the camera body side connection terminals in the direction of contact, and a level difference provided at the height of the optical accessory side connection terminals in the direction of contact.

Abstract: An optical accessory includes a bayonet mount attachable to a camera body side mount and accessory side connection terminals which contact the camera body side connecting terminals when the accessory side bayonet mount is attached to the camera body side bayonet mount. The accessory side connecting terminals have their end portions arranged to project in the direction of the optical axis behind the accessory side bayonet mount. In one preferred embodiment, the optical accessory further includes a member having a projection projecting in the direction of the optical axis behind the accessory side connecting terminals. The projection is positioned on the inner circumference side of the accessory side connecting terminals and is arranged near to the accessory side connection terminals. In another preferred embodiment, the end portions of the connecting terminals have plural height differences, and a contact seat also is provided for holding the accessory side connecting terminals.

Abstract: A power supply device in a camera system having an accessory arranged to be mountable and dismountable on and from a camera body which includes a power source. The camera body includes an electronic circuit arranged to communicate with the accessory by a first connection terminal arranged to permit a first power supply to the accessory, a second connection terminal arranged to permit a second power supply to the accessory, a third connection terminal arranged to permit communication with the accessory, and a detector for detecting mounting of the accessory on the camera body.

Abstract: A connector structure for a camera having bayonet mounts on the side of a camera body and on the side of an accessory, the camera body and the accessory being interconnected by rotating the mounts round relative to each other and being disconnected by reversely rotating the mounts. A group of contact pins is arranged at a camera body side connector to be slidingly brought into contact with a group of contact pins arranged at an accessory side connector by the rotational mounting action. The group of contact pins at the accessory side connector being in paired contact with the pins of the group of contact pins at the camera body side connector to permit communication between the camera body and the accessory upon completion of the mounting action. A first conductive member is arranged to be electrically connected in parallel with a first contact pin among the group of contact pins arranged at one of the connectors.

Abstract: The disclosed apparatus determines optically whether an object is located within a first range of distances from the apparatus or a second range of distances from the apparatus. A radiation projecting arrangement projects a beam towards the object and a receiving arrangement disposed a predetermined distance transverse to the object direction receives the radiation reflected from the object. A pair of radiation sensors in the receiving arrangement each produce an electrical output corresponding to the received radiation. A circuit responds to the outputs of the sensors to determine whether the object is located within a first range or a second range. The circuit arrangement connects the radiation sensors so as to subtract their outputs, and one of the sensors is provided with a more extensive radiation receiving area than the other. This extends one of the range of distances.

Abstract: In the camera disclosed, a control circuit responds to a focus detecting circuit to energize first display portions to produce a first mark representing the detected distance, and responds to a setting arrangement to energize other display portions to produce a second different mark representing a set distance. According to an embodiment, the control circuit displays a third mark when the first and second marks coincide.

Abstract: The disclosed camera sequentially controls the operations of two or more units, for example, an exposure control circuit and a film advance motor. An arrangement senses whether or not an operation has been completed normally and stores the result. When the succeeding operation is to start, the condition of the storage is sensed. If the memory indicates that the operation has not been normal, then the following operation is disabled.

Abstract: A spool drive type camera in which the taking up of the film is carried out only by the rotative force of the spool, while the one-frame advancement of the film is controlled by the revolution of the sprocket as it is driven by the film transportation is provided with automatic switching means for selection of a mode in which the above-described one-frame advancement is effected by the rotative force of the winding up system when a film is not loaded in the above-described camera.

Abstract: In the disclosed camera exposure control, data recording and film winding are performed sequentially and the system is protected from battery voltage drop arising from the effective increase in consumption of electrical energy necessary to make each exposure as compared with the ordinary camera, by detecting the battery level upon occurrence of a prescribed phase of the operating cycle. In one embodiment, the battery is also checked at a subsequent step of the cycle (for example, film winding operation is permitted only when the battery level is above the predetermined level). According to an embodiment of the invention, a sequence control circuit controls the photographic operation sequentially.

Abstract: An auto-focus built-in camera characterized by the arrangement of a range finding system for auto-focus utilizing the space between the film supply chamber and the film takeup chamber.

Abstract: In the disclosed automatic focus detection device, two image forming lenses have optical axes fixedly spaced a predetermined distance. Distance measuring elements are arranged near the focal points behind each image forming lens. A holding member holding one of the distance measuring elements is rotated around a shaft outside of the space between the optical axes of the two lenses so as to alter the distance between the distance measuring element and the image forming lens. According to an embodiment, one of the measuring elements is a light source which scans the object through one of the lenses when the holding member is rotated. Rotation of the holding member refocuses the light source throughout its scan.

Abstract: In a mark finder for an auto-focus camera provided with a photographic field mark indicating a picture frame within the field of view of the finder, and a distance measuring area mark indicating the light metering field of a photo-electric in-focus detecting device, the above-described phototgraphic field mark and the above-described distance measuring area mark are formed to be adjustable independently of each other.

Abstract: In the disclosed flash camera, a flash unit is movable between protruding and stowed positions, and a sensor senses whether a capacitor that flashes the unit is adequately charged. A switch and a control circuit enable the flash only when the unit is in the protruding position and the sensor simultaneously senses an adequate charge.

Abstract: In a camera using 35 mm cartridge-contained film and having incorporated therein an automatic winding and rewinding mechanism with the height of the camera housing reduced to a minimum value depending upon the longitudinal length of the film cartridge, the finder portion is arranged between the cartridge chamber at one of the shorter sides of the exposure aperture opening of the camera and the outer side panel of the camera housing, and a battery chamber capable of accommodating penlight (size AA) batteries is arranged between the winding chamber at the other shorter side of the exposure aperture opening and the outer side panel of the camera housing.

Abstract: In a camera using 35 mm cartridge-contained film and having incorporated therein an automatic winding and rewinding mechanism, between the cartridge chamber arranged along one of the shorter sides of the exposure aperture of the camera and the outer side panel of the camera housing there are arranged an Albada type finder and a battery chamber capable of accommodating penlight (size AAA) batteries, in superimposed relation, while along the other shorter side of the exposure aperture there is arranged a film takeup chamber. The film advancing and shutter charge mechanisms are arranged in a space between the lower or longer side of the exposure aperture and the bottom panel of the camera housing. The film footage and release mechanisms are arranged in a space between the upper longer side of the exposure aperture and the top panel of the camera housing.

Abstract: The present invention is to provide a focus adjusting device for a camera, particularly a focus adjusting device capable of fine adjustment of the position of the focal plane with ease.One of the characteristic features of the present invention is that the lens barrel is provided with an adjusting member such as a screw in screw-threaded relation thereto, so that all that is necessary to effect a fine adjustment of the initial position of the lens barrel relative to the camera body is to rotate the screw to adjust the length of that portion of the screw which projects outwardly of the lens barrel.

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.