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
Antibodies to OX-2/CD200 and uses thereof
Spreading technique applied to broadband mobile communications by satelite relying on DVB-RCS
Security arrangements for extended USB protocol stack of a USB host system
Detection of procedural deficiency across multiple business applications
System and method to assess serviceability of device
Workflow-enabled client
  Randomly Featured Patents
Increasing knowledge sharing success rates using real time match making
Process for recovering metal values from materials containing arsenic
Photo-reactive norbornene-based copolymer, a method of preparing the same, and an alignment layer including the same
Docking station
Back scrubber
Carbon fiber reinforced concrete
Tethered throat liner for side curtain air bag
Tool holding circular toothed blades stationary while cutting or grooving rotating work
Liquid crystal display apparatus with repair structure
Side nozzle tracer system