Abstract: Provided is an ultrasonic actuator on which tuning that has little effect on vibration characteristics of a vibrator is performed. The ultrasonic actuator includes an ultrasonic vibrator (12), a housing (16) that rotates with vibration of the ultrasonic vibrator, and pantograph preload mechanisms (150, 151) that hold the ultrasonic vibrator at a node of vibration of the ultrasonic vibrator and generate pressure with which the ultrasonic vibrator is pressed against the housing.

Abstract: Provided is an actuator that is able to adjust a ratio of a speed in a rectilinear-direction and a speed in a rotation-direction of an operation element. A differential drive mechanism (110A) includes a front conveyance roller (1112) and a rear conveyance roller (1113) that are able to convey a rod-shaped insertion unit in a long axis direction thereof and rotate the insertion unit about the long axis, and an angle changing mechanism that changes crossing angles of the front conveyance roller and the rear conveyance roller with respect to the insertion unit.

Abstract: A heating cooking device 1 includes: a heating unit 5 which heats an object to be heated C; an electromagnetic wave generation unit 15 which radiates electromagnetic waves E having a frequency of 100 GHz to 120 THz towards the object to be heated C for determining a cooking state of the object to be heated C; an electromagnetic wave detection unit 16 which detects the electromagnetic waves E radiated by the electromagnetic wave generation unit 15; and a CPU 13 which determines a cooking state of the object to be heated C based on a signal output by the electromagnetic wave detection unit 16 which detects the electromagnetic waves E. The heating cooking device 1 detects the electromagnetic waves E, an intensity of which is changed by striking the object to be heated C and determine the cooking state of the object to be heated C.

Abstract: View-switching glasses of the present invention are liquid crystal shutter glasses for switching how a viewer views through a left eye and a right eye, including an inclination sensor for detecting an amount of inclination of the liquid crystal shutter glasses when a face of a viewer wearing the liquid crystal shutter glasses is inclined.