摘要:
Provided is an image shake correction apparatus including: an image taking optical system for taking an image of a subject; an angular velocity detection unit for detecting an angular velocity applied to the apparatus and outputting a first signal; an acceleration detection unit for detecting an acceleration applied to the apparatus and outputting a second signal; an axial rotation angular velocity calculation unit for calculating an axial rotation angular velocity component about a principal point of the image taking optical system based on the first signal; a revolution angular velocity calculation unit for calculating a revolution angular velocity component about the subject based on the second signal and a result of the calculating by the axial rotation angular velocity calculation unit; and a control unit for performing image shake correction control based on a difference between the axial rotation angular velocity component and the revolution angular velocity component.
摘要:
At least one exemplary embodiment is directed to a light quantity adjusting apparatus that can include a first blade member configured to be driven by a drive source, such as a motor, and a second blade member whose movement is configured to be related to the movement of the first blade member.
摘要:
There is provided a light control apparatus that maintains the overall apparatus size small, increases the number of stop stages, and is suitable for both the shutter and stop actions. A light control apparatus includes a first actuator, a second actuator, a first light shielding member driven by the first actuator, and a second light shielding member driven by the second actuator, wherein in a stop adjusting action, the first and second actuators drive the first and second light shielding members and adjust an aperture formed by the first and second light shielding members, and wherein in a shutter action, the second actuator drives the second light-shielding member for a light shielding action.
摘要:
An oscillation control signal generated by an inverter power source control circuit (12) includes a reference voltage setting signal for approximating the current waveform of the AC output form the AC power source (1) to a sinusoidal wave by making both sides of the waveform generate current according to the fluctuation of the PWM control signal, and a waveform shaping signal consisting of a peak adjustment signal of a sinusoidal waveform for approximating the waveform peak portion of the current waveform to a sinusoidal wave by subtraction. Accordingly, even if the PWM control signal fluctuates, it is possible to automatically improve the power factor of the power source circuit to a value higher than a predetermined value by approximating the current waveform of the AC output from the AC power source to the sinusoidal wave, thereby improving the efficiency of the power source.
摘要:
To provide a trigger switch having a simple structure that is capable of reducing bouncing when the contacts are switched ON/OFF, the trigger switch includes a switch mechanism integrated in a single assembly a power control unit that turns a plurality of switches provided on the switch mechanism ON/OFF depending on a degree of retraction of the control unit by moving a pressing member over a top of a seesaw-shaped switching bar, a motor brake and control element short-circuit unit that drives a movable armature having two short-circuit contacts and is sandwiched and held between two springs, and a speed control unit that slides a plurality of moving contacts disposed in parallel over sliding contacts disposed on a sliding circuit substrate so as to control both the supply of power and a control element, and thus control the rotation speed of a motor.
摘要:
A boosting transformer for a high-frequency heating apparatus includes an insulation member, and a primary winding and a secondary winding formed at the insulation member and mutually isolated by the insulation member, each winding having a width and a thickness as measured when the winding is stacked, the width being smaller than the thickness. As such, the boosting transformer can be reduced in height to readily ensure a distance for insulating locations having therebetween a large potential difference from each other in the transformer's internal structure in designing a structure in which the transformer is attached to a high-frequency heating apparatus. Thus the boosting transformer can be attached to the high-frequency heating apparatus at a location less restrictively and such designing can be facilitated.
摘要:
Each of element processors arranged in correspondence to pixels of a template block and a search window block respectively includes an A register and a B register provided in parallel with each other for storing search window block pixel data respectively, and a T register for storing template block pixel data. Motion vector evaluation value calculation is performed through a first one of the A and B registers and the pixel data stored in the T register, while operated data is transferred to the second one of the A and B registers from the first one of the A and B registers in parallel with the calculation operation, for storing head search window block pixel data of a next search window. A motion vector is detected at a high speed in excellent coding efficiency.
摘要:
A counter counts clock signals. When a count thereof coincides with the number of rows or columns in a memory cell array, a row or column count coincidence signal is generated and applied to a shift input of a row or column address pointer formed of shift registers. The row or column address pointer is responsive to the clock signals to sequentially shift the count coincidence signal applied to the shift input, so that row or column selecting lines in the memory cell array are sequentially set in the selected state. Since the outputs at final stages in the row and column address pointers are not fed back to the inputs at the first stage thereof, signal delay in a feed back path is not caused, and thus operations for selecting rows and columns are performed at high speed. Also, respective shift register stages in the row and column address pointers have the same construction, and thus regularity thereof is maintained.
摘要:
A chalcone derivative of the formula (I): ##STR1## in which R.sub.1 represents hydrogen or a methyl group, and R.sub.2 represents a linear or branched aliphatic hydrocarbon group having from 2 to 24 carbon atoms.The derivative is effective in protecting the skin when made into ultraviolet absorbing agents including an anti-sunburn oil, since it has the maximum absorbing capacity at a wave length in the vicinity of 350 nm, does not irritate the skin and is highly compatible with a cosmetic base.
摘要:
Provided is an image shake correction apparatus including: an image taking optical system for taking an image of a subject; an angular velocity detection unit for detecting an angular velocity applied to the apparatus and outputting a first signal; an acceleration detection unit for detecting an acceleration applied to the apparatus and outputting a second signal; an axial rotation angular velocity calculation unit for calculating an axial rotation angular velocity component about a principal point of the image taking optical system based on the first signal; a revolution angular velocity calculation unit for calculating a revolution angular velocity component about the subject based on the second signal and a result of the calculating by the axial rotation angular velocity calculation unit; and a control unit for performing image shake correction control based on a difference between the axial rotation angular velocity component and the revolution angular velocity component.