Abstract: A laser radar device performs control to make a focus distance of transmission light equal to a measurement distance by switching a plurality of laser light sources that emit beams of oscillation light having wavelengths different from each other to switch emission directions of the transmission light while maintaining the focus position of optical antennas, and changing the wavelength of the beams of oscillation light according to the measurement distance.

Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a setter, and a controller. The setter is configured to modifiably set a change characteristic in changing a rotational state of the motor from a low speed rotation to a high speed rotation. The high speed rotation is greater than the low speed rotation in rotational frequency of the motor.

Abstract: A laser radar device performs control to make a focus distance of transmission light equal to a measurement distance by switching a plurality of laser light sources that emit beams of oscillation light having wavelengths different from each other to switch emission directions of the transmission light while maintaining the focus position of optical antennas, and changing the wavelength of the beams of oscillation light according to the measurement distance.

Abstract: A push cart includes a wheel, a motor, an obstacle detector, and a controller. The motor is configured to generate a rotational force that rotates the wheel. The obstacle detector is configured to detect an obstacle. The controller is configured to execute, in response to detection of the obstacle by the obstacle detector, avoidance control to control driving of the motor such that a movement of the push cart is limited. The controller is configured to disable execution of the avoidance control in response to a determination that a specified disabling condition is satisfied.

Abstract: A light source system (26) illuminating an optical system to be inspected (3) and making light fluxes of a plurality of wavefront measurement visual fields be emitted from the optical system to be inspected; a single wavefront sensor (28) calculating wavefront aberration on a basis of measurement of the light fluxes of the plurality of wavefront measurement visual fields emitted from the optical system to be inspected (3); and an optical path optical system (31) are included. The optical path optical system selectively makes the light fluxes of the plurality of wavefront measurement visual fields emitted from the optical system to be inspected (3) be incident on the wavefront sensor (28).

Abstract: A light source system (26) illuminating an optical system to be inspected (3) and making light fluxes of a plurality of wavefront measurement visual fields be emitted from the optical system to be inspected; a single wavefront sensor (28) calculating wavefront aberration on a basis of measurement of the light fluxes of the plurality of wavefront measurement visual fields emitted from the optical system to be inspected (3); and an optical path optical system (31) are included. The optical path optical system selectively makes the light fluxes of the plurality of wavefront measurement visual fields emitted from the optical system to be inspected (3) be incident on the wavefront sensor (28).

Abstract: A wind turbine device including: a blade rotation speed calculator to calculate a blade rotation speed of blades of a wind turbine, the blades crossing laser light emitted by a wind measurement lidar device installed on a wind turbine nacelle of the wind turbine; a coming wind velocity calculator to calculate a coming wind velocity on a basis of a wind velocity in line-of-sight direction of the laser light, the wind velocity being obtained from the wind measurement lidar device; and a start assist controller to control a start assist for starting rotation of the blades on a basis of the blade rotation speed calculated by the blade rotation speed calculator and the coming wind velocity calculated by the coming wind velocity calculator.

Abstract: An optical transmitter 1 includes an optical phase modulator 131 that performs phase modulation on a continuously oscillating light, a light intensity modulator 132 that performs pulse modulation on the light on which the phase modulation is performed, to output the light as a transmission light, a first signal generator 133 that generates a pulse modulation driving signal in which on and off time intervals are repeated periodically, to drive the optical intensity modulator 132, and a second signal generator 134 that generates a saw tooth wave driving signal having an amplitude equal to an integral multiple of a driving voltage needed to acquire a modulation phase of 2? of the optical phase modulator 131, and having a constant period, to drive the optical phase modulator 131.

Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a setter, and a controller. The setter is configured to modifiably set a change characteristic in changing a rotational state of the motor from a low speed rotation to a high speed rotation. The high speed rotation is greater than the low speed rotation in rotational frequency of the motor.

Abstract: A push cart includes a wheel, a motor, an obstacle detector, and a controller. The motor is configured to generate a rotational force that rotates the wheel. The obstacle detector is configured to detect an obstacle. The controller is configured to execute, in response to detection of the obstacle by the obstacle detector, avoidance control to control driving of the motor such that a movement of the push cart is limited. The controller is configured to disable execution of the avoidance control in response to a determination that a specified disabling condition is satisfied.

Abstract: Provided is a piston push rod assembly which can prevent discomfort from being imparted during the operation of a brake pedal by a driver. A piston push rod assembly, wherein: a second piston is provided with a piston slide section which is housed in a cylinder and which slides relative to the cylinder, and a connection tube section which is connected to a push rod; the piston slide section is covered by metal plating; the connection tube section has a non-plated section; and the second piston and the push rod are connected by the caulking of the connection tube section when the push rod has been inserted inside the connection tube section.

Abstract: A trigger switch has a case member, a cover member, and an operation member configured to be used to carry out an operation. The case member and the cover member are combined with each other to form a waterproof case. When the operation member is operated, the operation member is displaced inward of the waterproof case. An internal pressure of the waterproof case changes in accordance with displacement of the operation member. The case member has a case base that is made from an inelastic body. The case base does not deform in accordance with a change in internal pressure of the waterproof case. The case base has at least one hole part. The case member has at least one deformation section that seals the at least one hole part. The deformation section is made from an elastic body.

Abstract: Provided is a stroke simulator in which the piston operates smoothly without being inhibited from displacement thereof by the negative pressure generated in the closed space, even if the piston is configured to be displaced so as to close the space in which the elastic member is housed, and to elastically deform the elastic member. A stroke simulator, in which a simulator piston presses a first return spring, which is housed in a bottomed cylindrical portion, from an opening portion side of the cylindrical portion, to cause the first return spring to be elastically deformed, and to generate a brake reaction force. When the opening portion is closed by the simulator piston, a brake fluid filled in the cylinder portion is taken into the inside of the cylindrical portion via a flow path leading to the inside of the cylindrical portion from a second cylinder.

Abstract: An optical transmitter 1 includes an optical phase modulator 131 that performs phase modulation on a continuously oscillating light, a light intensity modulator 132 that performs pulse modulation on the light on which the phase modulation is performed, to output the light as a transmission light, a first signal generator 133 that generates a pulse modulation driving signal in which on and off time intervals are repeated periodically, to drive the optical intensity modulator 132, and a second signal generator 134 that generates a saw tooth wave driving signal having an amplitude equal to an integral multiple of a driving voltage needed to acquire a modulation phase of 2? of the optical phase modulator 131, and having a constant period, to drive the optical phase modulator 131.