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
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Microcapsules, their use and processes for their manufacture
Self-service administration of a database
Expressive grouping for language integrated queries
Composite materials comprising aggregate and an elastomeric composition
Auto-provisioning of network services over an Ethernet access link
Prioritizing application data for transmission in a wireless user device
  Randomly Featured Patents
Adjustable drill template
Closet ironing table
Feeding apparatus for paperboard sheets
Steering handle adapter for a camera dolly
Dialysis machine having multi-input voltage capable heater
Image display apparatus
Water line cathodic protection unit
Chemical process 632
Brush for cleaning the tongue root