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 manufacturing photoelectric conversion device
Method and apparatus for visual neural stimulation
Systems, methods and computer program products supporting provision of web services using IMS
System and method for confirming delivery of an electronic message
Channel estimating method and device
2-aryl-4-quinazolinones and their pharmaceutical compositions
  Randomly Featured Patents
Low-power DC voltage generator system
Norovirus detection, methods and compositions therefor
Expandable manifold for water delivery system
Apparatus for stacking and delivering paper napkins, paper towels, and the like
Snake trap
Systems and methods for implementing real estate future market value insurance
Flowmeter transducer magnetic clamping
Convertible water bed
Narrow row cotton harvester and picker unit
Projection device with a folded optical path and wire-grid polarizer