Panasonic Intellectual Property Management Co., Ltd.

Shinya Domoto

Ryo Ishikawa

Naoya Kato

Hideaki Yamaguchi

Takayuki Yamashita

Doukei Nagayasu

Kiyotaka Eizumi

Kenji Hoshino

Laser processing head () of the present disclosure includes housing (), transparent protector (), and temperature sensor (). Housing () includes an optical path of processing laser light (LB). Transparent protector () is detachably fixed to housing (), passes processing laser light (LB), and suppresses dust of work material (W) entering into housing (). Here, the dust is generated from the work material (W) irradiated with processing laser light (LB). Temperature sensor () detects the temperature of transparent protector ().

Laser processing head and laser processing system using same

A laser device includes a laser oscillator configured to emit a laser beam, and an optical unit configured to receive the laser beam and emit the laser beam outside. The optical unit includes: a partially transmissive mirror configured to reflect a part of the laser beam toward the outside and transmit a remaining part of the laser beam; a diffusion plate configured to diffuse the laser beam which has passed through the partially transmissive mirror and deflect the laser beam in a predetermined direction, at a predetermined diffusion angle; and a photodiode configured to receive the laser beam deflected by the diffusion plate, and output an electric signal. The laser device is configured such that deviation of an optical axis of the laser beam is monitored based on the electric signal of the photodiode.

Laser device and laser processing device using same

A laser oscillator includes a plurality of laser modules, beam coupler () that couples a plurality of laser beams (LBto LB) emitted from the plurality of laser modules to form a coupled laser beam, beam coupler () emitting the coupled laser beam, and a condensing lens unit having a condensing lens, the condensing lens unit condensing the coupled laser beam to have a given beam diameter and guiding the condensed coupled laser beam to a transmission fiber. Beam coupler () has optical members (OCto OC) configured to change optical paths of laser beams (LBto LB). By changing the optical paths of laser beams (LBto LB) by optical members (OCto OC,) a beam profile of the coupled laser beam emitted from the transmission fiber is changed without adjusting a position of the condensing lens.

Laser oscillator, laser machining device in which same is used, and laser oscillation method

A laser device includes a laser oscillator that generates a laser beam, condenser lens that condenses laser beam emitted from the laser oscillator, transmission fiber that includes at least core that transmits laser beam condensed by condenser lens, and cladding provided around core, and a lens driving unit that adjusts a position of condenser lens. The lens driving unit automatically adjusts the position of condenser lens to reduce light intensity of laser beam incident on cladding.

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Osaka, Japan

Shinya Domoto