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:
Aug. 03, 1993
Filed:
Apr. 19, 1991
Applicant:
Inventors:
Melvin P French, Barkhamsted, CT (US);
R Norris Keeler, McLean, VA (US);
Michael V Finn, Silver Spring, MD (US);
Assignee:
Kaman Aerospace Corporation, Bloomfield, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ; H04N / ;
U.S. Cl.
CPC ...
358 95 ; 356-5 ;
Abstract
An imaging lidar system is presented which utilizes internal or external transmitter beam pattern referencing for improved imaging lidar performance. In general, the present invention samples the laser output at or near the source to obtain a reference of the signal intensity distribution. This reference signal includes any anomalous spatial intensity distributions (associated with the output of the laser transmitter) which can then be discounted or subtracted out from the signals received from the target area of interest.