Asahi Kogaku Kogyo Kabushiki Kaisha

Yuzo Noguchi

Kiyoshi Itoh

Hironobu Nagashima

Teruo Sakai

A laser output measuring device for a laser knife having a flexible manipulator in which the output power at the operating end of the manipulator is accurately displayed at all times independent of changes in the transmissivity of the manipulator. A measuring hole member is provided in a housing in which is positioned a laser oscillator, a shutter device and a power detecting device. When the end of the manipulator is inserted in the measuring hole member, the shutter is positioned such that the output laser beam is directed onto the power detecting unit while when the end of the manipulator is free, the position of the shutter is determined by a foot switch such that the output laser beam from the laser oscillator can either be directed into the manipulator or to the power detecting unit. An arithmetic circuit is provided which measures the output power at the end of the manipulator when the end of the manipulator is positioned in the measuring hole member and which scales the output power measured when the end of the manipulator is free and the output beam of the laser oscillator is directed by the shutter to the power detecting unit such that the measured power always corresponds accurately to the output power at the end of the manipulator.

Growing community of inventors

Kawagoe, Japan

Yuzo Noguchi