Canon Kabushiki Kaisha

Hitoshi Nishitani

Hideki Kawashima

Gen Kitamura

Tomokazu Mori

Yoshihiro Kobayashi

Akitaka Yoshizawa

Naoki Nakamura

Kenji Ito

Naoki Nakanishi

Makoto Kubota

Yoshinori Hayashi

Hiroyuki Takahashi

Takanori Matsuda

Tatsuo Furuta

Toru Matsumoto

Hideaki Takahashi

Jumpei Hayashi

Takayuki Watanabe

Takao Ogata

Miki Ueda

Shinya Koyama

Keiko Fujita

Akira Uebayashi

Shunsuke Ninomiya

Teruaki Tsurusaki

Yu Narita

Kazuharu Osawa

Tomotaka Uekusa

Koichi Sasaki

Atsushi Munakata

Yukiteru Yano

Dai Miyauchi

The present invention provides a vibrator made of a non-lead-based piezoelectric material and capable of being driven at a sufficient speed with low power consumption, and provides a vibration wave drive device and an electronical device each using the vibrator. To that end, the vibrator according to the present invention includes a piezoelectric element including a piezoelectric material and electrodes, and an elastic body, wherein a Pb component contained in the piezoelectric material is less than 1000 ppm, and a resonance frequency fin a vibration mode A and a resonance frequency fin a vibration mode B satisfy a relation of an absolute value of (f&#x2212;f)&#x3e;2 (kHz), the vibration mode A and the vibration mode B generating vibration waves in the elastic body with wave fronts of the vibration waves intersecting each other.

Vibrator, vibration wave drive device, vibration wave motor, and electronical device

A stage device capable of performing piercing vibration and translational driving by using one actuator, and performing very low-speed driving in the translational driving with high accuracy. The stage device includes an X stage having a vibration actuator that includes an vibration element and a contact body, one of which is a movable body connected to an object to be driven, and drives the object to be driven in an X-axis direction, and a control section that controls driving of the vibration actuator. The control section causes two-phase AC voltages to be applied to an electromechanical energy conversion element to thereby excite predetermined vibrations in the vibration element, to drive the vibration actuator by switching between a movement mode for moving the object to be driven in the X-axis direction and a vibration mode for vibrating the object to be driven in the X-axis direction.

Stage device, minute operation device, and method of controlling same

An electronic apparatus includes an internal speaker, a communication unit configured to perform a wireless communication with a wearable external speaker, and a control unit. The control unit establishes wireless connection with the external speaker through the communication unit and the control unit continuously performs a control operation for preventing an output of an audio signal from the internal speaker in a case where the wireless connection with the external speaker is disconnected by a first factor in a state where the control unit performs the control operation. The control unit cancels performance of the control operation in a case where the wireless connection with the external speaker is disconnected by a second factor different from the first factor in a state where the control unit performs the control operation for preventing the output of the audio signal from the internal speaker.

Electronic apparatus, control method thereof, and storage medium

An image capturing apparatus with a mechanical shutter, an output unit that outputs a sound, and a setting unit that sets whether the output unit outputs sound includes an image capturing mode where image capturing occurs without the mechanical shutter and an image capturing mode where image capturing is automatically switched between using the mechanical shutter and not using the mechanical shutter, where during image capturing without the mechanical shutter the output unit outputs sound based on the setting made by the setting unit, and where during image capturing without the mechanical shutter when image capturing switches between using and not using the mechanical shutter, the output unit outputs sound regardless of the setting made by the setting unit.

Image capturing apparatus, control method thereof, and recording medium thereof

An electronic device includes an internal speaker, a connection unit configured to connect an external speaker, an operation unit configured to receive a user operation, and a control unit, wherein, in a case where the external speaker is connected via the connection unit in a state in which the internal speaker is controlled not to output an electronic sound, the control unit controls the operation unit to receive an instruction to change a setting for switching whether to output an electronic sound, and wherein, in a case where the external speaker is not connected via the connection unit in a state in which the internal speaker is controlled not to output an electronic sound, the control unit controls the operation unit not to receive an instruction to change a setting for switching whether to output an electronic sound.

Electronic device and control method and storage medium

An electronic apparatus including an imaging unit, an operation unit, an output unit, and a control unit, wherein the control unit outputs a sound relating to a first warning using the output unit, in a case where a condition for issuing the first warning is satisfied, wherein the control unit stops outputting the sound relating to the first warning, in a case where an instruction is received by the operation unit, wherein the control unit doesn't output the sound relating to the first warning even when the condition for issuing the first warning is satisfied, in a case where the output of the sound relating to the first warning is stopped, and wherein the control unit outputs a sound relating to a second warning, when a condition for issuing the second warning is satisfied, in a case where the output of the sound relating to the first warning is stopped.

Electronic apparatus, control method, and storage medium

An imaging apparatus capable of capturing two images which may not be obtained by the general HDR imaging by simultaneously capturing two images of different exposures by changing exposure change rates of a low exposure image and a high exposure image is provided. The imaging apparatus includes a calculation unit configured to calculate a first exposure for obtaining a first image included in the plurality of images under a first condition and calculate a second exposure for obtaining a second image included in the plurality of images under a second condition which is different from the first condition, and a setting unit configured to set an exposure for obtaining the first and second images based on the first and second exposures calculated by the calculation unit.

Imaging apparatus and imaging method using first and second images for generating high dynamic range image

In a linear driving apparatus including a vibration wave motor, a sliding guide method is used as a guiding method for a moving member. The apparatus further includes a driving target body movable in a moving direction, a transmission member configured to engage with the driving target body, abut against the abutment part of the moving member, and transmit the driving force of the vibration wave motor to the driving target body, and a biasing member configured to apply a biasing force between the transmission member and the abutment part. The direction of a frictional contact force that the vibrator receives from the friction member and the direction of a biasing contact force that the abutment part receives from the biasing member are parallel and opposite, and the load center of the distribution load of the biasing contact force exists in the range of the outside shape of the vibrator.

Vibration wave motor, linear driving apparatus using vibration wave motor, and optical apparatus

An image capturing apparatus includes an image sensor, a frame configured to support the image sensor, and one or more driving members configured to move the frame in a direction parallel with an imaging plane of the image sensor. The driving members include a vibration unit that generates vibration. The vibration unit of at least one of the driving members overlaps a center of the imaging plane of the image sensor, when viewed in a direction orthogonal to the imaging plane of the image sensor.

Image capturing apparatus to address shake

To improve both of the mechanical reliability and electrical reliability of an electronic apparatus including a piezoelectric body, a vibrator, and a vibration wave motor. The piezoelectric body is configured by bonding a piezoelectric element and a flexible printed circuit substrate FPC, a coverlay has an end N made up of a first outline part and a second outline part that intersect with wiring layers, the first outline part coming in contact with an electrode Fof electrodes F, and the second outline part coming in contact with another electrode of the electrodes F. Length Lfrom an outer-shape line M of the piezoelectric element that intersects with the FPC to the first outline part is shorter than length Lfrom the outer-shape line M to the second outline part, and the electrode Fis located closer to the outer-shape line than the other electrode of the electrodes F.

Piezoelectric body, vibration wave motor and electronic apparatus

In a linear driving apparatus including a vibration wave motor, a driving target body movable in a moving direction, a transmission member which is held by the driving target body and abuts against an abutment part of a moving member to synchronously move the vibration wave motor and the driving target body, and a biasing member which gives a biasing force between the transmission member and the abutment part, the direction of a pressure contact force which a vibrator receives from a friction member and the direction of a biasing contact force which the abutment part receives from the biasing member are parallel and opposite to each other, and the load center of the distribution load of the biasing contact force falls within the range of the vibrator.

Linear driving apparatus using vibration wave motor and optical apparatus

The dimension in a moving direction of a vibration wave motor is shortened without impairing the thrust force, and the size of a driver is reduced. The vibration wave motor includes a vibrating plate having a substantially rectangular outline, a piezoelectric element bonded to the vibrating plate and configured to vibrate, and a protrusion provided to the vibrating plate or the piezoelectric element. The vibrating plate has a section not covered with the piezoelectric element inside a rectangular region encompassing the piezoelectric element within a plane where the piezoelectric element is bonded, and also has a notched portion along a straight line which passes through the section and is parallel to one side of the outline of the vibrating plate.

Vibration wave motor and driver utilizing the vibration wave motor

A vibration wave motor includes a vibrating plate having a rectangular surface; a piezoelectric device bonded to the vibrating plate, and configured to vibrate at high frequency; and a projection provided on the vibrating plate or the piezoelectric device. In the vibration wave motor, a natural vibration mode, which has a resonant frequency equal to or adjacent to a resonant frequency of torsional vibration in a natural vibration mode under a state in which the vibrating plate, the piezoelectric device, and the projection are integrated, is a natural vibration mode of bending vibration in a direction parallel to or orthogonal to a torsion center axis of the torsional vibration in the natural vibration mode. The projection is provided at a position closer to an antinode than to a node, which are in the direction orthogonal to the torsion center axis of the torsional vibration in the natural vibration mode.

Vibration wave motor and driving apparatus using the vibration wave motor

This invention prevents an adhesive portion between a piezoelectric element and a conducting member of a small vibrator from peeling off. In a vibrator, a conducting member includes at least one first adhesive portion adhered to an electrode, at least one second adhesive portion adhered to an elastic member, and a feed portion electrically connected to means for applying an external voltage. In the conducting member, a path length from the feed portion to the first adhesive portion is longer than a path length from the feed portion to the second adhesive portion.

Vibrator and ultrasonic motor

A driving apparatus has a vibration plate, a vibrator having a piezoelectric element that excites vibration of the vibration plate, and first and second contact parts, and a friction member being in contact with the contact parts. The vibrator and the friction member relatively move with respect to each other, and the contact parts are provided at positions with and interpose an odd number of antinodal lines of vibration generated in a first direction of the vibrator along with excitation, and provided at positions with and interpose an odd number of nodal lines of vibration generated in a second direction of the vibrator along with excitation.

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Tokyo, Japan

Hitoshi Nishitani