摘要:
A lens barrel in accordance with the present invention has a stationary frame, a cam frame, a first lens frame, and a second lens frame. The cam frame has an external cam formed on the external surface thereof and an internal cam formed on the internal surface thereof. The first lens frame is freely movable in directions along an optical axis relative to the stationary frame when driven by the external cam of the cam frame. The second lens frame can freely slide in the optical-axis directions with its rotation restrained by the internal surface of the first lens frame when driven by the internal cam of the cam frame.
摘要:
Improved efficiency of deposition work between a protection trimming and a clip seat of an automobile is provided with an automatic deposition machine having wire heating elements (3a and 3b), a first connection member (1) connected to one end of the wire heating elements (3a and 3b), a movement mechanism for moving the first connection member (1), a second connection member (2) that can be connected to the other end side of the wire heating elements (3a) and (3b) and a bending jig (5) for overlapping the clip seat the member for the protection trimming. The dip seat and the protection trimming are interconnected, to the rear face of the protection trimming via the wire state heating elements (3a and 3b), the retainer member (4) for retaining the said overlapped clip seats, and the power source for carrying the electric current between the said first connection member and the said second connection member. In addition, the wire heating element is designed with a pipe structure. The cooling gas is passed inside the pipe structured heating element after the deposition between the clip seat and the protection trimming by the electrification.
摘要:
A portable terminal machine which controls the execution of a downloaded program depending on a usage time limit when a sub program downloaded from a video game machine is stored in the storage device, the time of communication with the video game machine obtained from the clock is recorded in the sub program as a time stamp. At the time of the startup of the sub program, the portable terminal machine calculates the usage time limit based on the time of communication and compares this usage time limit against the current time obtained from the clock and stops the startup of the sub program if the usage time limit has been exceeded.
摘要:
A positioning system for obtaining information concerning a current position of a device even when one is in an underground center or inside a building includes a portable terminal is equipped with a radio-call-reception part having a radio-call-reception function that is a receiving unit which receives data sent from the base station and a positioning function to obtain the primary position data indicating the current position of the device based on data sent from the base station, a GPS-reception part having a positioning function to obtain the secondary position data on measuring the current position of the device based on signals sent from GPS satellites, and a position-data-correction function to correct the secondary position data using the position-correction data sent from the base station, and an information-processing part having a function to perform information processing using position data obtained from the radio-call-reception part and the GPS-reception part.
摘要:
A number of embodiments of engines that improve engine performance and lean running stability by employing internal EGR controlled by controlling the volume of the intake passage between the throttle valve and the intake port in relation to the maximum combustion chamber volume.
摘要:
A molded product is thermally bonded mutually with another molded product by disposing the resistance heating element (20) to the bonding face of product molded with the thermoplastic resin, making the bonding electrode (10) contact the resistance heating element (20) and by impressing the voltage for its heat generation. The heat generation temperature of the resistance heating element (20) at the voltage impressed portion (21) is suppressed to the level lower than the fusion temperature of resin by blowing the cooling gas toward the voltage impressed portion (21) from a vent hole (11) provided on the bonding electrode (10).
摘要:
An intake system for an engine is disclosed. The intake system is arranged to selectively provide exhaust gas recirculation for improving emission quality. The engine has at least one combustion chamber and an exhaust valve controlled exhaust passage leading from the combustion chamber for routing exhaust therefrom. The intake system includes an intake passage leading to the combustion chamber, an intake valve arranged to control the flow of air into the combustion chamber and a throttle valve positioned in the intake passage upstream of the intake valve. A mechanism is provided for changing the volume of the intake passage between the throttle valve and intake valve for selectively inducing exhaust gas recirculation during an opening overlap of the exhaust and intake valves.
摘要:
A control system and method for a multi-combustion chamber internal combustion engine. Balance running between the combustion chambers is achieved by varying the engine operating parameters or the parameters of a load driven by the engine. In addition, knocking can be detected and corrected by also sensing the rate of acceleration of the engine output shaft at certain crank angles.
摘要:
An optical recording and reproducing apparatus uses a laser to form one or more spots on an information recording medium preformatted with wobbling guide grooves, and detects tracking error. If the differential push-pull method of detecting tracking error is used, a center spot is flanked by satellite spots distant by an odd multiple of half the repeating period of tile wobble. If the three-beam method is used, the distance is an odd multiple of one-fourth the repeating period of the wobble. If the push-pull method is used, a split photodetector generates a pair of electrical signals. The sum and difference of these signals are filtered, then synchronously detected, and the result is combined with the difference signal to generate a corrected tracking error signal.
摘要:
A band limiter connected between output lines of a differential amplifier. The band limiter includes a bipolar transistor connected to the output lines via capacitors, and includes a temperature detecting device for detecting ambient temperature. Transistor capacitance is connected to or disconnected from the output lines in response to a bandwidth limiting signal. The transistor constitutes a low-pass filter functioning as a band limiter when it is closed, whereas it functions as a variable capacitor which varies its capacitance in accordance with the ambient temperature when it is opened. The high-band frequency characteristic of the differential amplifier is temperature compensated by the transistor functioning as a variable capacitance.