Abstract: A right angle reflection prism includes first and second surfaces that form a right angle, and a third surface connected to the first and second surfaces. The right angle reflection prism causes a laser beam, which is made incident on the first surface and with which a material to be processed is irradiated, to be totally reflected by the third surface so as to be emitted from the second surface. A sensor detects a power of a laser beam that has passed through the third surface.

Abstract: The present laser processing device has a laser oscillator, a laser power supply, a control unit, an optical fiber cable, an electric cable, a processing head, an operation panels and a laser processing monitor unit. The laser processing monitor unit includes the control unit, the operation panel a sensor signal processing unites and a sensor unites as a basic configuration for a main function, that is, a monitoring function, and additionally includes a reference beam source, a reference beam source power supply, an optical measuring instrument and an optical path switching unit as a calibration unites for calibrating an optical sensor incorporated in the sensor unit.

Abstract: When a material to be welded is irradiated with a laser beam emitted by a processing head, a beam receiving units receive a radiated beam including a reflected beam of the laser beam and a monitoring beam that is caused by thermal radiation and is a beam having a wavelength different from that of the reflected beam. A spectrometer unit spectrally separates the reflected beam and the monitoring beam, and converts the monitoring beam into a first electric signal. A trigger unit converts the reflected beam into a second electric signal, and outputs a trigger signal when a level of the second electric signal is a predetermined threshold value or higher. When the trigger signal is input, a laser welding monitor starts, based on the first electric signal, a determination of whether or not laser welding of the material to be welded is normally performed.

Abstract: The present laser processing monitoring device is a monitoring device of a laser processing machine that performs desired laser processing by irradiating a given metal-based workpiece with a laser beam LB and melting the workpiece by means of laser energy, and includes a laser oscillator, a laser power supply, a controller, a guide beam generation unit, delivery optical fibers, a head (an emission unit and a sensor unit, an operation panel, and a monitoring unit. The monitoring unit is a laser monitoring device in the present embodiment, and is configured to mainly include the controller, the operation panel, a sensor signal processing unit, the sensor unit, and the like.

Abstract: A vehicle pillar structure is provided including a pillar frame that configures framework of a pillar and that includes a flange portion configuring an attachment counterpart for a weather strip at a vehicle front-rear direction rear end portion of the pillar frame, a garnish that is attached to a vehicle width direction inner side of the pillar frame and that configures a styling face of a vehicle cabin interior, and plural ribs that are integrally formed to a face of the garnish on the pillar frame side, that are supported by the flange portion through the weather strip, and that are arrayed in a pillar length direction.

Abstract: A vehicle pillar structure is provided including a pillar frame that configures framework of a pillar and that includes a flange portion configuring an attachment counterpart for a weather strip at a vehicle front-rear direction rear end portion of the pillar frame, a garnish that is attached to a vehicle width direction inner side of the pillar frame and that configures a styling face of a vehicle cabin interior, and plural ribs that are integrally formed to a face of the garnish on the pillar frame side, that are supported by the flange portion through the weather strip, and that are arrayed in a pillar length direction.

Abstract: A control circuit comprises a rectifier unit for performing full wave rectification on an AC power source, a switching element for switching a current flowing through a light emitting device which emits light in response to a voltage having been full wave rectified in the rectifier unit, a voltage dividing circuit for dividing the voltage having been full wave rectified in the rectifier unit to obtain a reference voltage Vref, a comparator for comparing a comparison voltage Vcmp corresponding to the current flowing through the light emitting device with the reference voltage Vref, and a control unit for controlling switching of the switching element based on a comparison result obtained in the comparator.

Abstract: A control circuit comprises a rectifier unit for performing full wave rectification on an AC power source, a switching element for switching a current flowing through a light emitting device which emits light in response to a voltage having been full wave rectified in the rectifier unit, a voltage dividing circuit for dividing the voltage having been full wave rectified in the rectifier unit to obtain a reference voltage Vref, a comparator for comparing a comparison voltage Vcmp corresponding to the current flowing through the light emitting device with the reference voltage Vref, and a control unit for controlling switching of the switching element based on a comparison result obtained in the comparator.