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
Method, apparatus, and system for synchronizing contents
Apparatus and method for an iterative cryptographic block
Soybean EF1A promoter and its use in constitutive expression of transgenic genes in plants
Reducing voltage stress in a flyback converter design
Process for preparing substituted aromatic carboxylic acids
System and method of automatic piloting for in-flight refuelling of aircraft, and aircraft comprising said system
Method for automatically estimating inertia in a mechanical system
  Randomly Featured Patents
Plate-link chain
Method of preserving a composite material cased solid propellant rocket motor
Soybean variety A1016137
Transistors having a channel semiconductor alloy formed in an early process stage based on a hard mask
System and method for secure communication of collected amphibious data
Device for applying formatted adhesive applications on a transfer roller
Rate-adaptive pacemaker with compensation for long-term variations in average exertion level
Armchair
Fastener tool support
Providing a visual representation of various resources related to passages of classic literature