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. 18, 1989
Filed:
Oct. 20, 1987
Applicant:
Inventor:
Alfred Fendt, Munich, DE;
Assignee:
Messerschmitt-Boelkow-Blohm GmbH, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ; G01B / ;
U.S. Cl.
CPC ...
356152 ; 244-313 ;
Abstract
The optical axis of a guide beam projector operating in accordance with the reticle field modulation method, is measured by projecting the guide beam through a retroreflector into the optical axis of a sighting instrument. When the two axes are coincident the two axes are harmonized. A non-coincidence is measured and evaluated in an electronic signal processing circuit to provide information to be used for harmonizing the two axes, for example, by a respective automatic adjustment.