Abstract: An active distance measuring apparatus with the remote control function is provided with a plurality of light projecting portions, a plurality of light receiving portions, a distance measuring device for effecting active distance measurement at one or more points in an image field by the use of all or some of the plurality of light projecting portions and the plurality of light receiving portions, and a remote control for performing, when the light receiving portions receive signal light from a remote control transmitter, a predetermined remote control operation by the use of the output of the light receiving portion which has received the signal light, the distance measuring device distance-measuring a distance measuring point corresponding to the light receiving portion which has received the signal light from the remote control transmitter.

Abstract: A portable power blower includes a body and a handle mounted on a top of the body. The body includes a prime mover, a fan volute chamber, a fan housed in the fan volute chamber and attached to one end of an output shaft of the prime mover, and an air inlet of the fan volute chamber formed in front of the fan. A main guard member is so mounted as to cover one side surface of the fan volute chamber on which the air inlet is formed, and a gap for radially introducing external air into the air inlet is formed between a rear side of the main guard member and the one side surface. The gap is in open communication with atmosphere at a top portion of the body. A bottom guard member connected to the main guard member and the fan volute chamber covers bottom portions of the fan volute chamber and the prime mover, and a sub-guard member connected to the bottom guard member and the fan volute chamber covers sides of the prime mover which oppose the main guard member and the bottom guard member, respectively.

Abstract: In a semiconductor memory device of the present invention, data read from a memory cell to a pair of complementary data lines or a pair of common data lines are fed directly to an output circuit not through any sense amplifier. As a result, the delay time of the sense amplifier itself is omitted from the address access time of the conventional semiconductor memory device using the sense amplifier, so that the semi-conductor memory device of the present invention can have its address access time made shorter than that of the conventional semiconductor memory device.

Abstract: An improvement in a starter of the type having a housing to be attached to an internal combustion engine and structure on the housing for rotating a crank shaft on the internal combustion engine to which the housing is attached. The improvement resides in structure for intermittently operating a decompression mechanism on the internal combustion engine to which the housing is attached as an incident of the crank shaft rotating structure being operated.

Abstract: There is provided a highly reliable decompression device of engine which is constructed relatively simply without forming an opening responsible for intrusion of dusts and dirts or foreign matter into a starter cover and/or clogging of foreign matter to ensure that defective operation of individual components due to dusts and dirts hardly occurs to permit steady decompression inside a combustion chamber in cooperation with cranking operation effected by a recoil starter. The decompression device is provided in an internal combustion engine with a recoil starter having a starter cover, a recoil drum housed in the starter cover, and a rotation transmission member movable in the axial direction in cooperation with rotation of the recoil drum to transmit torque from the recoil drum to a crank shaft of the engine.

Abstract: An encoder for generating a position signal in accordance with a position of a conductive slider comprises a non-conductive substrate, a first conductive pattern formed on the substrate, and at least three second conductive patterns formed on the substrate. The second patterns are independent from the first pattern. Each of the second patterns has a lead wire extending to an edge of the substrate. The slider is slidable on the substrate, and produces a conductive state signal when it abuts against the first pattern and produces a non-conductive state signal when it abuts against the second pattern or the substrate. The position signal is generated in accordance with the conductive state signal and the non-conductive state signal. One of the second patterns is surrounded by the first pattern, and the lead wire extending therefrom passes between the other two second patterns and extends to the exterior of the first pattern.

Abstract: An active distance measuring apparatus comprises a projector for projecting modulated light to an object, a photo-sensor for sensing the modulated light reflected by the object to produce a pair of alternating current signals in accordance with a distance to the object, and a signal processor for producing a distance signal in accordance with the pair of alternating current signals. The signal processor includes a detector means for detecting a voltage corresponding to each of the pair of alternating current signals a plurality of times and adding the results of such detection and repeating such detection and addition a plurality of times and a calculation for calculating the distance signal based on the output of the detector.

Abstract: An automatic film rewinding apparatus, for use in a camera, is provided with a stopping device for interrupting an automatic film rewinding operation while such rewinding operation is conducted by the automatic film rewinding apparatus, and an operation unit for activating the stopping device, wherein the automatic film rewinding is interrupted by the stopping device only during the operation of the operation unit, but is re-started after the termination of operation of the operation unit.

Abstract: A distance metering device of a camera eliminates a troublesome re-setting operation when a remote controller is used as a cable release and avoids the creation of defocused photograph when the remote controller is used as a self-timer.When a first remote control signal receiver is selected, that is, when the remote controller is to be used as the self-timer, a distance metering mode of a multi-point distance metering device is forcibly switched to a multi-point distance metering mode, and when a second remote control signal receiver is selected, that is, when the remote controller is to be used as the cable release, the forced switching is not done.

Abstract: A camera with a too-close-subject-distance alarm display device, further comprising a flash device for flashing the light to a subject to be photographed; a selection device for selecting at least the flash exposure mode in which the flash device is permitted to flash or the flash inhibit mode in which the flash device is inhibited to flash; a subject-distance measuring instrument for measuring a subject distance; a decision device for detecting whether the subject distance measured by said distance measuring instrument is less than a predetermined distance or not; an alarm device for alarming when said subject distance measured by said subject-distance measuring instrument is detected to be shorter than said predetermined subject distance by said decision device; and a setting device for setting said predetermined distance to a first predetermined distance when said selection device has selected the flash exposure mode and for setting said predetermined distance to a second predetermined distance longer than

Abstract: An electronic flash apparatus uses a voltage-controlled switching device, such as an insulated gate bipolar transistor, for controlling the start and termination of flash emission from a flash discharge tube. A peak voltage of an oscillation generated in a resonant circuit, produced in response to a flash emission start command, is clamped by a clamping circuit and is used to turn on the voltage-controlled switching device. Another resonant circuit may be used for doubling the voltage between the anode and cathode of the flash discharge tube when the flash discharge tube is triggered.

Abstract: An electronic flash apparatus is capable of discriminating the presence or absence of connection to a camera, and also the state of a connected camera. When the flash apparatus is connected to a camera capable of information transfer, the time required to transfer information is minimal. At least some of the terminals that connect the flash apparatus to the camera perform multiple functions. Different currents are supplied to certain terminals depending upon whether a connected camera is in an information transfer state or a flash photographing state. Terminal voltage detection controls certain functions, including varying certain terminal voltage.

Abstract: In a camera system comprising a camera and a flash device, a first synchronizing signal is generated when the camera shutter starts an exposure, and a second synchronizing signal is generated when the exposure is about to be terminated. First and second synchro control modes may be selected. A light emission control is responsive to the first synchronizing signal to drive the flash device when the first synchro control mode is selected and is responsive to the second synchronizing signal to drive the flash device when the second synchro control mode is selected. A shutter control makes possible the driving of the shutter at shutter speeds up to a first limit speed when the first synchro control mode is selected and makes possible the driving of the shutter at shutter speeds up to a second limit speed when the second synchro control is selected, the second limit speed being lower than the first limit speed.

Abstract: An electronic flash device is detachably mountable on a camera and capable of data communication with said camera. The electronic flash device comprises a display unit for automatically setting photographing information upon receiving relevant data from the camera or manually setting photographing information. The display unit is set in a first display state when the device is mounted on a camera capable of data communication and data are transmitted therefrom, or is set in a different display unit when the device is mounted on a camera incapable of data communication and no data are transmitted therefrom.

Abstract: An exposure control device for a camera is so structured that the film information recorded on the film or the cartridge is read, the reflection coefficient of the loaded film is determined based on the read film information and the termination of light emission of an electronic flash device or the start of run of a shutter curtain is controlled in accordance with the reflection coefficient so that the proper exposure is always obtained by the light emission control or the shutter control by the TTL direct light detection irrespective of the change of the reflection coefficient of the film.

Abstract: Driving device for illuminating lamp of flash apparatus comprises means for detecting supplied voltage supplied to the illuminating lamp and generating a detection signal corresponding to thus detected voltage, power supply means for supplying power to the illuminating lamp according to the supplied voltage, and means for controlling the period of power supply from the power supply means to the illuminating lamp according to the detection signal.

Abstract: An electronic flash unit for emitting flashlight toward an object to be photographed in order that a camera may obtain proper exposure comprises flash means having a flash tube which emits flashlight, means for driving the flash tube in order that the flash tube may emit flashlight, and means for applying light to the interior of the flash tube prior to the driving means causing the flash tube to emit flashlight.

Abstract: An automatic control type electronic flash apparatus comprises means for emitting flashlight and flashlight emission stopping means. The stopping means receives the flashlight emitted by the flashlight emitting means and reflected by an object to be photographed and stops the emission of the flashlight by the flashlight emitting means when a quantity of the flashlight received reaches a predetermined value. The flash unit includes integrating means for integrating a current corresponding to the flashlight emitted by the flashlight emitting means in place of the flashlight reflected by the object and comparing means. The comparing means compares an integrated value from the integrating means with a reference value and generates a first output when the integrated value is smaller than the reference value and a second output when the integrated value is greater than the reference value. The flash unit includes indicating means for showing an over-exposure in response to the first output.

Abstract: In an electronic flash apparatus, electric power is alternately supplied by a same power source to the voltage elevating circuit for charging the main capacitor for flash emission and to other circuits provided in the flash unit or in the camera, such as a light emission control circuit for controlling the quantity of emitted light, an indicator circuit for indicating the completion of the charging of the main capacitor, an indicator circuit for indicating whether the light emission control is in operation, an alarm circuit for indicating an inadequate setting of the flash unit etc.