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 of purifying crude acetone stream
Implant free extremely thin semiconductor devices
Method for manufacturing photoelectric conversion device
Method and apparatus for controlling cardiac resynchronization therapy using cardiac impedance
Display screen with graphical user interface
Reception system including a mechanism countering pulsed interference
Push mechanism for efficiently sending aggregated data items to client
  Randomly Featured Patents
Method and system for collaborative document markup using coded marks
Amplifying optical fiber and method for fabricating the same
Duck in flight air freshener
Elastic support element or belt for stuffing of furniture pieces or car seats
One-piece safety cleat
Process for manufacturing booklets
Grip strength analyzer apparatus and method of using same
Open MRI magnet
Adjustable window tinting system
Liquid pollutant skimming system