The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 1979
Filed:
May. 09, 1977
Applicant:
Inventor:
Walter Schmidt, Schaffhausen, CH;
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356 30 ; 356239 ;
Abstract
Inclusion in crystals, in particular in single crystals of gallium-gadolinium garnet, are detected by passing a beam e.g. a laser beam into the crystal perpendicular to the long axis of the crystal. The crystal can be rotated and the light scattered by the inclusions in the crystal are recorded photographically at right angles to the illuminating beam which is made to scan the rod shaped crystal along its long axis.