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:
Dec. 22, 2009
Filed:
Aug. 09, 2006
Randall B. Sprague, Carnation, WA (US);
Wyatt O. Davis, Bothell, WA (US);
Dean R. Brown, Lynnwood, WA (US);
Yoshiro Koga, Shiojiri, JP;
Nobumasa Abe, Matsumoto, JP;
Yujiro Nomura, Shiojiri, JP;
Randall B. Sprague, Carnation, WA (US);
Wyatt O. Davis, Bothell, WA (US);
Dean R. Brown, Lynnwood, WA (US);
Yoshiro Koga, Shiojiri, JP;
Nobumasa Abe, Matsumoto, JP;
Yujiro Nomura, Shiojiri, JP;
Microvision, Inc., Redmond, WA (US);
Abstract
An electrophotographic printer includes an exposure unit having a MEMS scanner operable to scan a beam of light across a photoconductor. The MEMS scanner includes a mirror having an aspect ratio similar to the shape of the facets of a conventional rotating polygon scanner. In a preferred embodiment, the scan mirror has a length of about 750 microns in a dimension parallel to its axis of rotation and a length of about 8 millimeters in a dimension perpendicular to its axis of rotation. The MEMS scanner is operable to scan at a frequency of about 5 KHz and an angular displacement of about 20 degrees zero-to-peak mechanical scan angle.