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 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
Electronic device and recording medium
Techniques for generating and displaying a visual flow of user content through a social network
Control apparatus and control method
Stool
Method of treating cancer using a survivin inhibitor
Techniques for data assignment from an external distributed file system to a database management system
Method and system for processing dictated information
  Randomly Featured Patents
Garment with hydrophobic forearms
Double heart cross
Flotation process for deinking printed waste paper
Method and system for operating a field programmable line card using a country coded template
Insulated retainer for a beverage container
Semiconductor device
Electrical power saving system
Damper
Semiconductor storage device
Oscillation generator for an ultrasonic liquid atomizer