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:
Jun. 09, 1981
Filed:
Oct. 30, 1979
Applicant:
Inventor:
N Balasubramanian, Cupertino, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350-66 ; 350-68 ; 346108 ;
Abstract
An apparatus is described which provides optical scanning with both high resolution and high speed. A low resolution acousto-optic deflector is scan-center coupled with a rotating scanner to allow high scanning speed without degrading the resolution characteristics associated with a rotating scanner. A mirror having a parabolic reflective surface exhibiting spherical aberration cooperates with a rotating multi-faceted cylindrical mirror to maintain the imaging focal point of the beam provided by the apparatus in a flat image field as the beam is caused to scan the field.