Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Base station apparatus and method for use in mobile communication system
Method and system for imaging a cross section of a specimen
Electronic control apparatus
Basket for a dishwasher
Integrated transmit/receive switch
Down-drawable, chemically strengthened glass for cover plate
Simulation tool for air traffic communications security
  Randomly Featured Patents
Method of making a threaded hole
Paraffin ammoxidation process
Process for producing unsaturated glycol diester
Exposure device for platemaking apparatus
Paper stacker device for receiving fanfold paper without assistance
Method to drill and tap a hollow underwater member
Container dumping system
Armature for bicycle saddles
Protective frangible dispensing enclosure for article
Low resin content unidirectional fiber tape