Patents by Inventor D. M. Fishman

D. M. Fishman 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 measurement of reflectivity for high quality mirrors
    Patent number: 5313270
    Abstract: An apparatus and methods are suggested for measuring reflectivity R of highly reflecting coatings, and, in particular, of very high reflectivity {(1-R)<0.001} mirrors based on the simultaneous measurement of power reflected from and transmitted through an optical cavity bounded by a mirror of unknown reflectivity and a reference mirror of predetermined reflectivity. To confirm the obtained results the reference mirror is replaced by another mirror of unknown reflectivity manufactured together with the first examined mirror in the same coating run.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: May 17, 1994
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: D. M. Fishman, Paul I. Haar