Resources Contact Us Home
Laser emission head, laser beam transmission device, laser beam transmission device adjustment method and preventive maintenance/repair device of structure in nuclear reactor

Image Number 19 for United States Patent #6881925.

A laser emitting head for irradiating a portion to be machined with laser beams outputted from a laser unit (624) incorporates an emitting head body having a light guide member (625) in the head for guiding the laser beams; a light converging lens (677) for converging the laser beams transmitted from the light guide member in the head; a reflecting mirror (678) for irradiating the portion to be machined with the converged laser beams; mirror rotating means (684) for holding the reflecting mirror to be rotative around the optical axis of the laser beam; distance-adjustment means (674) for adjusting the relative distance between the reflecting mirror and the converging lens; and moving means (665) for moving the reflecting mirror and the converging lens such that the relative distance is maintained so that the light guide member in the head. The converging lens and the reflecting mirror can be introduced/discharged with respect to a portion to be machined and formed in a narrow gap in an incore structure. As a result, a preventive-maintenance/repair operation using laser beams and arranged to be performed in a narrow gap in the incore structure can safely and efficiently be performed.

  Recently Added Patents
Anomalous data detection method
Power converter for an LED assembly and lighting application
Porous objects having immobilized encapsulated biomolecules
Phosphoinositide 3-kinase inhibitor with a zinc binding moiety
Systems and methods for providing a collaboration place interface including data that is persistent after a client is longer in the collaboration place among a plurality of clients
Apparatus and method for controlling semiconductor die warpage
Reactor core of liquid metal cooled reactor
  Randomly Featured Patents
Process for the preparation of a cellular polyurethane
Method and system for wireless configuration, control, and status reporting of devices in a fire alarm system
Detection and use of low molecular-weight modulators of the cold-menthol receptor TRPM8
Banding machine
Semiconductor laser module and method of manufacturing the same
Microwave oven
Modeling an event using linked component modules provided in a spreadsheet environment
Electric power supply connection for submersible capacitor-start motor apparatus
Apparatus for level winding tubing