Abstract: In an image pickup apparatus capable of setting the flash exposure amount of an external flash both in the camera and the standalone external flash, if a flash exposure compensation amount locally set in the external flash itself and that set in the camera exist, one of them is enabled. Display is changed depending upon the location of the enabled setting in order to give the user notice of the enabled flash exposure compensation amount.

Abstract: A power generation cell includes a membrane electrode assembly, with an anode side metal separator and a cathode side metal separator sandwiching the membrane electrode assembly. Flow field walls are provided within the coolant flow field for preventing coolant from flowing into an area corresponding to an oxygen-containing gas inlet buffer, while allowing the coolant to flow into an area corresponding to an oxygen-containing gas outlet buffer. Likewise, flow field walls contact each other for preventing the coolant from flowing into an area corresponding to a fuel gas inlet buffer, while allowing the fuel gas to flow into an area corresponding to a fuel gas outlet buffer.

Abstract: An imaging apparatus includes an image sensor configured to capture an object image, a selection unit configured to automatically select a sensitivity of the image sensor from a predetermined selectable range, and an image processing unit configured to execute correction processing in which a signal of an image captured by the image sensor which has the sensitivity selected by the selection unit is amplified. When the image processing unit is set to execute the correction processing, the selection unit sets an upper limit of the selectable range lower, compared with the upper limit thereof when the image processing unit is not set to execute the correction processing.

Abstract: An electric motor (10) has a field pole formed by a field current passing through a field winding (50). A voltage booting converter (120) converts output voltage of a battery (B) and outputs the voltage between a power source line (107) and a grounding line (105). Field winding (50) is electrically connected onto an electric current channel between battery (B) and power source line (107) and formed so that voltage switched by a switching element (Q1) is applied to both ends. A controller (100) controls the field current so as to adjust density of magnetic flux between a rotor and a stator by performing switching control on switching element (Q1) and a switching element (Q3) connected in parallel to field winding (50) and converts the output voltage of battery (B) into voltage in accordance with a voltage command value.

Abstract: A rotating electric motor includes a stator core, a rotational shaft capable of rotation, a field yoke allowing a flow of magnetic flux in an axial direction, first and second rotor cores fixedly installed on the rotational shaft, a first magnet fixedly installed between the first rotor core and the second rotor core, a first rotor teeth formed at the first rotor core, a second magnet provided alongside of the first rotor teeth in the circumferential direction of the first rotor core, a second rotor teeth formed at the outer surface of the second rotor core, protruding outwardly in the radial direction, a third magnet provided alongside of the second rotor core in the axial direction, and windings that can control the density of magnetic flux between at least one of the first rotor core and second rotor core and the stator core.

Abstract: In a case where a request for an operation related to photographic operation is input during an alien substance removing operation of removing an alien substance sticking to an optical element arranged in front of an image sensing element, the alien substance removing operation is interrupted, and then the processing corresponding to the request for the photographic operation is executed.

Abstract: A fuel cell according to the present invention includes a power generation unit. The power generation unit is formed by stacking a first metal separator, a first membrane electrode assembly, a second metal separator, a second membrane electrode assembly, and a third metal separator. The number of flow grooves in a first oxygen-containing gas flow field is different from the number of flow grooves in a second oxygen-containing gas flow field. The first oxygen-containing gas flow field and the second oxygen-containing gas flow field have the same length, and the flow grooves in the first oxygen-containing gas flow field and the flow grooves in the second oxygen-containing gas flow field have the same depth.

Abstract: An image pickup apparatus is provided that can switch between an optical viewfinder mode for identifying an object using an optical viewfinder and a live view mode for identifying an image of an object using a monitor. The apparatus includes an auto-focus unit able to be configured in the optical viewfinder mode; and a control unit configured to switch, in a case where a mode for performing exposure control in association with an auto-focus result obtained by the auto-focus unit is set, when the optical viewfinder mode is switched to the live view mode, to a mode for performing exposure control not in association with the auto-focus result.

Abstract: Each of power generation units of a fuel cell according to the present invention is formed by stacking a first metal separator, a first membrane electrode assembly, a second metal separator, a second membrane electrode assembly, and a third metal separator together. The power generation unit has therein a first oxygen-containing gas flow field, a first fuel gas flow field, a second oxygen-containing gas flow field, and a second fuel gas flow field. The number of flow grooves in the first oxygen-containing gas flow field is different from that of flow grooves in the second oxygen-containing gas flow field, and the number of flow grooves in the first fuel gas flow field is different from that of flow grooves in the second fuel gas flow field.

Abstract: A first metal separator of one of adjacent power generation cells and a second metal separator of the other of the adjacent power generation cells are directly stacked together to form a coolant flow field. The first metal separator has a press line protruding toward the coolant flow field, between a fuel gas flow field and an inlet buffer. The second metal separator has a press line protruding toward the coolant flow field, between an oxygen-containing gas flow field and an inlet buffer. The press lines contact each other to limit flow of the coolant into a back surface buffer.

Abstract: Noise filtering data compression removes noise differences from successive frames in a video signal. This is accommodated by accessing successive frames corresponding to a video signal. Frequency domain representations, for example first row and first column coefficients in the quantized DCT result matrix, are used to determine whether the block in the current frame should be considered identical to the corresponding block in the previous frame. If such is the case, the block data is rendered identical such as by overwriting one for the other. This removes any noise differential between the corresponding blocks from the successive frames.

Abstract: An image pickup apparatus includes a display that displays photographing information. When the display is turned off in response to an operation performed by a user, the photographing information is prevented from being changed even if a button or a dial for changing a set value, such as a shutter speed or an aperture value, is operated.

Abstract: A rotating electric motor includes a rotary shaft capable of rotation, a stator core formed in a cylindrical configuration, a rotor core fixed to the rotary shaft, a magnet set at the rotor core such that a pair of magnetic poles of different magnetism are aligned in the radial direction of the rotor core, a field yoke provided at the perimeter of the stator core, and a winding that can control the magnetic flux density across the rotor core and the stator core by forming a magnetic circuit across the field yoke and the rotor core.

Abstract: In an image pickup apparatus capable of setting the flash exposure amount of an external flash both in the camera and the standalone external flash, if a flash exposure compensation amount locally set in the external flash itself and that set in the camera exist, one of them is enabled. Display is changed depending upon the location of the enabled setting in order to give the user notice of the enabled flash exposure compensation amount.

Abstract: A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.

Abstract: A fuel cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. A first cell voltage terminal for detecting a voltage generated in the membrane electrode assembly is formed integrally with an outer region of the first metal separator. The first cell voltage terminal extends outwardly from the first metal separator. A first seal member covers the outer region of the first metal separator, and includes a first extension seal which covers the first cell voltage terminal to a position near a tip end of the first cell voltage terminal.

Abstract: In a case where a request for an operation related to photographic operation is input during an alien substance removing operation of removing an alien substance sticking to an optical element arranged in front of an image sensing element, the alien substance removing operation is interrupted, and then the processing corresponding to the request for the photographic operation is executed.

Abstract: A unit cell of a fuel cell includes a membrane electrode assembly and an anode side metal separator and a cathode side metal separator sandwiching the membrane electrode assembly. A plurality of first supply holes and a plurality of second supply holes extend through a channel unit of the anode side metal separator, and the channel unit connects a fuel gas supply passage and a fuel gas flow field. A fuel gas from the fuel gas supply passage flows into the first supply holes, and flows through an inlet connection channel. The fuel gas flows into the second supply holes connected to an end of the inlet connection channel. The fuel gas flows toward the side of the membrane electrode assembly, and then, the fuel gas is supplied to an anode.

Abstract: A power generation cell includes a membrane electrode assembly, with an anode side metal separator and a cathode side metal separator sandwiching the membrane electrode assembly. Flow field walls are provided within the coolant flow field for preventing coolant from flowing into an area corresponding to an oxygen-containing gas inlet buffer, while allowing the coolant to flow into an area corresponding to an oxygen-containing gas outlet buffer. Likewise, flow field walls contact each other for preventing the coolant from flowing into an area corresponding to a fuel gas inlet buffer, while allowing the fuel gas to flow into an area corresponding to a fuel gas outlet buffer.

Abstract: A first seal member is formed integrally on both surfaces of a first metal plate. The first seal member is integrally formed on a cooling surface of the first metal plate, except a region corresponding to a reaction surface facing an electrode reaction surface, and except regions of inlet buffers and outlet buffers. The first seal member has an expansion. The position of an end surface of the expansion substantially matches the position of a wall surface of the outermost groove of a coolant flow field to prevent the flow of a coolant around the electrode reaction surface.