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:
Apr. 16, 1991
Filed:
Aug. 28, 1989
Mohan L Bobba, Eugene, OR (US);
Howard H Nojiri, Eugene, OR (US);
Spectra-Physics, Inc., San Jose, CA (US);
Abstract
A method and apparatus for sweeping a laser beam in a laser scanner is disclosed wherein a laser beam traveling along a path from a laser beam source is directed upon a scanner mirror which reflects the beam into scan pattern mirrors to project a scanning pattern for each sweep of the laser beam. A rotary actuator supports and rotates the scanner mirror to sweep the laser beam onto the scan pattern mirrors and a linear actuator in turn supports and linearly moves the rotary actuator and scanner mirror generally along the path of the laser beam to vary the point of focus of the laser beam and thereby expand the effective depth of field of the laser scanner.