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:
May. 23, 2000
Filed:
Jun. 08, 1998
Applicant:
Inventor:
Joseph F Rando, Los Altos Hills, CA (US);
Assignee:
Levelite Technology, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
3561521 ; 348141 ; 3561391 ; 3561415 ;
Abstract
A system for checking alignment of laser beam projecting instruments, and for enabling accurate calibration of an instrument, includes a high resolution video camera positioned to receive a laser beam from the instrument. The spot from the detected laser beam is compared on a video monitor to a spot or target position showing the location corresponding to accurate alignment of the beam. Multiple orthogonal beams from an instrument may be directed to the same video sensor using mirrors. By use of the described system the need for long beam paths to check beam alignment accuracy is avoided.