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 13 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
Method for identifying modulators of GPCR GPR1 function
Camera system, video processing apparatus, and camera apparatus
Undercabinet plug-in mount
Retrievable outgoing audio messaging
Maize variety hybrid X13A495
Hybrid asynchronous transmission process
Sensing during magnetic resonance imaging
  Randomly Featured Patents
Hybrid maize plant and seed 36B08
Flexible raised pavement marker, mounting device and method
Method for the preparation and recovery of alkali metal citrates
Jewish religious ornament
Process for producing thermoplastic graft copolymer resin containing nitrile
Vacuum filtration system
Ultra-accelerated natural sunlight exposure testing
High efficiency backlight assembly for flat panel display assembly and method for the manufacture thereof
3-substituted-2-oxindole derivatives
Gate and gate post assembly