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:
Jan. 23, 1996
Filed:
Mar. 01, 1993
Applicant:
Inventor:
Gerd Hausler, Erlangen, DE;
Assignee:
MAHO Aktiengesellschaft, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
356375 ; 356372 ; 356376 ;
Abstract
A method and device is disclosed wherein a subject is excited by electromagnetic radiation in a locally limited range to emit radiation that is not coherent with the exciting radiation. The radiation of atoms lying close to one another on the surface of the subject is not correlated, i.e., the excited point of light radiates incoherently in space, and generally also in time. Since only this incoherent radiation emitted by the point of light is analyzed in distance determination, no speckle structure occurs in the point of light, which makes it possible more accurately to find the position of the point of light and thus also to find the distance much more accurately.