Patents by Inventor Alexander I. Erokhin

Alexander I. Erokhin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for creating an image by a pulsed laser beam inside a transparent material
    Patent number: 5637244
    Abstract: A method of creating an image inside a transparent material with the aid of a pulsed laser beam involves use of a diffraction limited Q-switched laser, in particular, a solid-state single-mode TEM.sub.00 laser; sharp focusing of the laser beam to provide an adjustable microdestruction in the material being treated; and mutual displacement of the laser beam and the material being treated after each laser shot to a next point of the image being reproduced. The microdestruction induced in the material at a pre-set point is adjustable in size by varying the actual aperture of the focusing lens and laser radiation power simultaneously.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: June 10, 1997
    Assignee: Podarok International, Inc.
    Inventor: Alexander I. Erokhin