Abstract: An image capturing apparatus includes an image capturing unit; a division photometry unit that detects a brightness of an object in each of a plurality of divided areas; a weighting unit that weights a photometric value of each of the divided areas; an exposure determination unit that determines exposure based on weighting; and a control unit that performs control such that a degree of reflection of the condition of the object on weighting is different between a case where object image capture is performed intermittently by the image capturing unit in order to generate a time-lapse movie, and a case where object image capture is performed by the image capturing unit in order to generate a movie whose ratio of playback time to image capture time is larger than the time-lapse movie.

Abstract: An exposure control technique that makes it possible, even when photographing is performed in an enlarged display state of live view, to obtain an image photographed with correct exposure, by causing a setting shifting function to operate. When an enlargement instruction is received from a user when images acquired by an image pickup device are being sequentially displayed on an image display section, a camera control circuit causes an enlarged image corresponding to a partial area of an object area to be displayed on the image display section. If an exposure is to be changed when the enlarged image is being displayed, the camera control circuit changes the exposure, based on a result of photometry of the image acquired by the image pickup device before the enlarged image is displayed on the image display section.

Abstract: An electric motor includes a rotor and a stator including a stator core, a plurality of armature windings, a plurality of field windings, and a plurality of bonded magnets. The stator core has a plurality of teeth alternately defining field slots and armature slots along a circumferential direction, and a stator yoke magnetically coupling the plurality of teeth opposite the rotor. Each armature winding is wound around two of the teeth sandwiched between an adjacent pair of the armature slots. Each field winding is wound around two of the teeth sandwiched between an adjacent pair of the field slots. The magnets are individually located in the field slots while opposing the field windings in the radial direction. Each adjacent pair of the magnets along the circumferential direction respectively has an adjacent pair of pole surfaces, with the adjacent pair of pole surfaces having a same polarity.

Abstract: An image pickup apparatus includes an image pickup element configured to photoelectrically convert an optical image, and a controller configured to control a drive of a focus lens based on a signal outputted from the image pickup element and control a frame rate to drive the image pickup element, and the controller is configured to detect an in-focus position based on a signal outputted from the image pickup element which is driven at a first frame rate, and to switch the frame rate of the image pickup element to a second frame rate lower than the first frame rate while performing a first operation to drive the focus lens to the in-focus position.

Abstract: An exposure control apparatus prevents exposure from being influenced by false detection and instability of face detection and prevents exposure from being influenced by an object that has cut across in front of a subject. Detection results are obtained by detecting at least one specific region, which is predetermined in advance, in a taken image of the subject. When at least one specific region is detected, one of detection results is selected based on selecting conditions determined in advance to obtain a selected detection result. When it is judged that exposure is not being controlled using the selected detection result, whether or not the selected detection result has changed in a predetermined period is judged. When the selected detection result has not changed, a latest detection result is regarded as the selected detection result, and when the selected detection result has changed, the selected detection result is not changed.

Abstract: An exposure control technique that makes it possible, even when photographing is performed in an enlarged display state of live view, to obtain an image photographed with correct exposure, by causing a setting shifting function to operate. When an enlargement instruction is received from a user when images acquired by an image pickup device are being sequentially displayed on an image display section, a camera control circuit causes an enlarged image corresponding to a partial area of an object area to be displayed on the image display section. If an exposure is to be changed when the enlarged image is being displayed, the camera control circuit changes the exposure, based on a result of photometry of the image acquired by the image pickup device before the enlarged image is displayed on the image display section.

Abstract: In order to solve a problem that a local optical characteristic-changed region inside an object cannot be accurately estimated, an object observing apparatus includes: a light intensity information acquiring unit that acquires light intensity information received by each light-receiving probe; a light intensity change information acquiring unit that acquires, for each probe set, light intensity change information, from reference light intensity information and light intensity information; an estimating unit that acquires three-dimensional optical characteristic-changed region information, using the light intensity change information; and an output unit that outputs the optical characteristic-changed region information; the estimating unit including a correcting part that performs correction according to sensitivity attenuation in accordance with a depth; and a sparseness applying part that introduces sparseness for improving a space resolution, thereby acquiring the optical characteristic-changed region infor

Abstract: A lens apparatus includes an aperture stop unit that adjusts light intensity, a terminal configured so that a voltage is applied in a state of connecting to an image pickup apparatus, a drive circuit that drives the aperture stop unit, and a controller that controls the drive circuit, the controller controls the drive circuit in a drive mode that drives the aperture stop unit from a first position to a second position without driving the aperture stop unit to an open position.

Abstract: An image pickup apparatus includes an image pickup element configured to photoelectrically convert an optical image, and a controller configured to control a drive of a focus lens based on a signal outputted from the image pickup element and control a frame rate to drive the image pickup element, and the controller is configured to detect an in-focus position based on a signal outputted from the image pickup element which is driven at a first frame rate, and to switch the frame rate of the image pickup element to a second frame rate lower than the first frame rate while performing a first operation to drive the focus lens to the in-focus position.

Abstract: An image pickup apparatus includes an image pickup element configured to photoelectrically convert an optical image, and a controller configured to control a drive of a focus lens based on a signal outputted from the image pickup element and control a frame rate to drive the image pickup element, and the controller is configured to detect an in-focus position based on a signal outputted from the image pickup element which is driven at a first frame rate, and to switch the frame rate of the image pickup element to a second frame rate lower than the first frame rate while performing a first operation to drive the focus lens to the in-focus position.

Abstract: A rotary electric machine includes a rotor core, a stator, a field yoke, and a field winding. The rotor core is fixed to a rotary shaft, which includes a magnetic body for forming a magnetic path, and magnetic salient poles. The stator has teeth and a stator winding wound around the teeth by concentrated winding. A slot is formed between adjacent ones of the teeth in a circumferential direction. The field yoke magnetically connects the stator and the magnetic body. The field winding is located in proximity to at least one of the winding ends of the stator winding in an axial direction of the rotary shaft. The field winding generates a magnetic pole on the magnetic salient poles when energized.

Abstract: In order to solve a problem that a local optical characteristic-changed region inside an object cannot be accurately estimated, an object observing apparatus includes: a light intensity information acquiring unit that acquires light intensity information received by each light-receiving probe; a light intensity change information acquiring unit that acquires, for each probe set, light intensity change information, from reference light intensity information and light intensity information; an estimating unit that acquires three-dimensional optical characteristic-changed region information, using the light intensity change information; and an output unit that outputs the optical characteristic-changed region information; wherein the estimating unit includes: a correcting part that performs correction according to sensitivity attenuation in accordance with a depth; and a sparseness applying part that introduces sparseness for improving a space resolution, thereby acquiring the optical characteristic-changed regi

Abstract: An electric motor driving device that drives an electric motor including a field winding, a rotor and a stator, wherein the rotor and the stator each form a field pole by passing a field current through the field winding, includes: a power supply device; a converter including a reactor that at least partially serves as the field winding shared with the electric motor, and configured to receive a voltage from the power supply device to carry out voltage conversion between first and second power lines and to pass the field current through the field winding during voltage conversion operation; an inverter configured to convert a direct-current power received from the converter to an alternating-current power for driving the electric motor; and a controller controlling the converter so that a current flows through the field winding in the same direction both during power running and regeneration of the electric motor.

Abstract: An image pickup apparatus includes an image pickup element configured to photoelectrically convert an optical image, and a controller configured to control a drive of a focus lens based on a signal outputted from the image pickup element and control a frame rate to drive the image pickup element, and the controller is configured to detect an in-focus position based on a signal outputted from the image pickup element which is driven at a first frame rate, and to switch the frame rate of the image pickup element to a second frame rate lower than the first frame rate while performing a first operation to drive the focus lens to the in-focus position.

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 capturing apparatus capable of switching between an optical viewfinder and live view which involves periodically reading out an image signal out of an image sensor and sequentially displaying the image signal on a display unit, comprises a phase difference focus control unit that performs auto focus control using a phase difference detection method; a selection unit that selects one of a plurality of focus detection areas used for the auto focus control; an electronic zoom unit that changes an angle of view; and a control unit that causes the phase difference focus control unit to perform auto focus control by the phase difference detection method using the selected focus detection area if the selected focus detection area is located within the changed angle of view, otherwise not to perform auto focus control by the phase difference detection method using the selected focus detection area.

Abstract: After a shutter drive motor drives a shutter to a holding mode, if a first determination unit determines that a mirror is not ready to move to a mirror up mode, a control unit switches the shutter drive motor to a first braking mode. After the shutter drive motor is switched to the first braking mode, if the first determination unit determines that a mirror is ready to move to the mirror up mode before a second determination unit determines that the shutter drive motor is to be switched to a second braking mode, the control unit switches the shutter drive motor to an open mode until a predetermined period of time has elapsed since the first determination unit determined that the mirror was ready to move to a mirror up mode.

Abstract: A lens apparatus includes an aperture stop unit that adjusts light intensity, a terminal configured so that a voltage is applied in a state of connecting to an image pickup apparatus, a drive circuit that drives the aperture stop unit, and a controller that controls the drive circuit, the controller controls the drive circuit in a drive mode that drives the aperture stop unit from a first position to a second position without driving the aperture stop unit to an open position.

Abstract: An image capturing apparatus capable of switching between an optical viewfinder and live view which involves periodically reading out an image signal out of an image sensor and sequentially displaying the image signal on a display unit, comprises a phase difference focus control unit that performs auto focus control using a phase difference detection method; a selection unit that selects one of a plurality of focus detection areas used for the auto focus control; an electronic zoom unit that changes an angle of view; and a control unit that causes the phase difference focus control unit to perform auto focus control by the phase difference detection method using the selected focus detection area if the selected focus detection area is located within the changed angle of view, otherwise not to perform auto focus control by the phase difference detection method using the selected focus detection area.

Abstract: An image capturing apparatus capable of switching between an optical viewfinder and live view which involves periodically reading out an image signal out of an image sensor and sequentially displaying the image signal on a display unit, comprises a phase difference focus control unit that performs auto focus control using a phase difference detection method; a selection unit that selects one of a plurality of focus detection areas used for the auto focus control; an electronic zoom unit that changes an angle of view; and a control unit that causes the phase difference focus control unit to perform auto focus control by the phase difference detection method using the selected focus detection area if the selected focus detection area is located within the changed angle of view, otherwise not to perform auto focus control by the phase difference detection method using the selected focus detection area.