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
Horizontal cable manager
Semiconductor device and method of forming discontinuous ESD protection layers between semiconductor die
Wireless control system for a patient support apparatus
Avalanche photo diode and method of manufacturing the same
Fabrication of thin pellicle beam splitters
Fluid conduit with PTC fabric heating
Motion estimation for a video transcoder
  Randomly Featured Patents
Intelligent occupancy monitoring using premises network
Combined child stroller and infant carrier
Tester for structural integrity of building materials and method
Method for designing an electronic circuit
Memory enhancing-R-N-(1-azabicyclo[2.2.2.]oct-3-yl)benzamides and thiobenzamides
Nucleating system for poly(chlorofluoroethylene) and articles formed therefrom
Disc cutter
Dynamically right-sizing prefixes for network and application performance
Automatic document transportation device