Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Takami Ishida

Jiro Terada

Satoshi Ohuchi

Hideo Ohkoshi

Hiroyuki Aizawa

Ichirou Satou

Yohei Ashimori

Masaya Nakatani

Kazuki Komaki

Hiroyuki Nakamura

Kensaku Yamamoto

Masahiro Yasumi

Shigehiro Yoshiuchi

Katsuya Morinaka

Ryouichi Takayama

Takashi Imanaka

Daisuke Nakamura

A light control system includes an optical reflection element and a controller. The optical reflection element includes: a reflector; and a first swing portion and a second swing portion disposed at respective one of positions sandwiching the reflector. Each of the first swing portion and the second swing portion includes: a first connection portion coupled to the reflector; a first vibration portion; a second vibration portion; a first drive portion; a second drive portion; and a second connection portion that connects the first and second vibration portions to a base. The controller causes the first and second drive portions of the first swing portion to vibrate in the same phase, and causes the first and second drive portions of the second swing portion to vibrate in the same phase but in the opposite phase to the first swing portion.

Light control system and optical reflection element

An optical reflective element includes: a reflective body that rotationally oscillates about a first rotational axis; a first connector body that is coupled to the reflective body, and includes a groove portion provided in a position in which the first rotational axis is located; a first vibration body that is disposed in a direction intersecting the first rotational axis, and is coupled to a proximal end portion of the first connector body; a second vibration body that is disposed on a side opposite the first vibration body; a first driving body that causes the first vibration body to rotate; a second driving body that is coupled to the second vibration body; and a second connector body that connects the first vibration body and the second vibration body in a manner that allows the first vibration body and the second vibration body to vibrate.

Optical reflective element for causing an illumination position of light to reciprocate

A reflective optical element includes a reflector configured to reflect light, a first connection part connected with the reflector, first and second transmission parts connected with of the first connection part, first and second vibrator parts connected with respective base ends of the first and second transmission parts, first and second driver parts connected with respective head ends of the first and second vibrator parts, a base, and a second connection part connecting the first and second vibrator parts vibratably with the base.

Reflective optical element

An inertial force sensor includes a detecting device which detects an inertial force, the detecting device having a first orthogonal arm and a supporting portion, the first orthogonal arm having a first arm and a second arm fixed in a substantially orthogonal direction, and the supporting portion supporting the first arm. The second arm has a folding portion. In this configuration, there is provided a small inertial force sensor which realizes detection of a plurality of different inertial forces and detection of inertial forces of a plurality of detection axes.

Angular velocity sensor

Inertial force sensor

A sensor includes a circuit board, a wiring connection layer, a sensor element, and a conductive post. The circuit board has a first electrode. The wiring connection layer has second and third electrodes. The second electrode is connected to the first electrode. The sensor element has a fourth electrode. The conductive post connects the third electrode electrically with the fourth electrode. This sensor can be driven efficiently.

Sensor

A vibration piezoelectric acceleration sensor including a pair of beam shaped members linearly and oppositely disposed on a frame, a support body supporting the beam shaped member, and a holding part holding the support body moveably in a linear direction, and another pair of beam shaped members disposed linearly and oppositely crossing the pair of beam shaped members detecting acceleration in two axes, i.e. X and Y directions. The beam shaped members are extended and retracted by the acceleration transmitted to the support body through the holding part, changing a natural oscillation frequency. Accordingly, a high change ratio of resonance frequency can be provided with the detection of the acceleration, and the acceleration in the direction of two axes can be detected without being affected by a change in temperature.

Vibration piezoelectric acceleration sensor

The vibration-type piezoelectric acceleration sensor element includes a frame; and a diaphragm, support, and retentive part, provided in the frame. The diaphragm includes a bottom electrode layer, a piezoelectric thin-film layer formed on the bottom electrode layer, and a top electrode layer formed on the piezoelectric thin-film layer. A first end of the diaphragm is connected to the frame. The support retains a second end of the diaphragm. The retentive part retains the support so that the support is reciprocable only in a direction through the first end and the second end of the diaphragm.

Vibration-type piezoelectric acceleration sensor element and vibration-type piezoelectric acceleration sensor therewith

Growing community of inventors

Osaka, Japan

Takami Ishida