Abstract: An imaging apparatus has an image sensor that captures the optical image of an object formed by an imaging optical system and converts the optical image into the electrical still image signal, a signal processor for dividing a representation of the image signal into a plurality of areas, and for determining a color characteristic for each area of the plurality of areas, the color characteristic consisting of a hue and/or chroma saturation, a selector for selecting at least one area of the plurality of area for which its respective color characteristic substantially corresponds to a preset color characteristic, and a focus controller for determining focus parameters of the imaging apparatus for the selected area and generating a focus control signal for adjusting the image optical system based on the focus parameters.

Abstract: An imaging apparatus has an image sensor that captures the optical image of an object formed by an imaging optical system and converts the optical image into the electrical still image signal, a signal processor for dividing a representation of the image signal into a plurality of areas, and for determining a color characteristic for each area of the plurality of areas, the color characteristic consisting of a hue and/or chroma saturation, a selector for selecting at least one area of the plurality of area for which its respective color characteristic substantially corresponds to a preset color characteristic, and a focus controller for determining focus parameters of the imaging apparatus for the selected area and generating a focus control signal for adjusting the image optical system based on the focus parameters.

Abstract: In a circuit breaker in which an interrupting device, a resistor device and a capacitor device are connected in parallel, a shield device is arranged to shield the interrupting device and the resistor device and comprises a first shield for shielding the stationary main contact and stationary resistor contact and a second shield for shielding the movable main contact and movable resistor contact. Each of the first shield and the second shield comprises a large shield portion and a small shield portion, and the small shield portions are arranged between the large shield portions. The small shield portion terminates in the vicinity of the top of the main contact and of the top of the resistor contact. The small shield portion comprises wide portions situated substantially in the direction of an axis joining centers of the main contact and resistor contact and narrow portions situated substantially in the direction perpendicular to the axis.

Abstract: The present invention relates to a puffer type circuit breaker having a high voltage and large capacity, which is provided with an insulating nozzle for blowing a arc-extinguishing gas of high pressure generated by separating a movable contactor from a fixed contactor. The fixed contactor has a larger diameter portion formed on the base portion thereof and a smaller diameter portion formed at the tip end thereof, and the insulating portion has a first throat portion adjusted by the smaller diameter portion and a second throat portion located at the downstream side of the first throat portion and adjusted by the larger diameter portion, thereby allowing the gas inlet portion to be formed by the diameter difference between the first throat portion and the smaller diameter portion which is in such manner that the second throat portion is adjusted by the larger diameter portion.