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. 19, 1982
Filed:
Aug. 04, 1975
Applicant:
Inventor:
Wayne H Keene, Medfield, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G02B / ;
U.S. Cl.
CPC ...
356152 ; 250236 ; 350-64 ; 356-5 ;
Abstract
A scanning laser doppler system in which the change in angle between transmitted and received beams caused by the finite transit time to the target is automatically compensated. The scanning beam is produced as a downward looking Palmer scan pattern by an expanded laser beam transmitted through a rotating wedge. The rotating wedge is tilted in accordance with the invention to align the received beam with a portion of the transmitted beam upon a detector.