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:
Jul. 01, 1997
Filed:
Mar. 16, 1995
Applicant:
Inventors:
Fred V Richard, Scottsdale, AZ (US);
Marc H Wildy, Phoenix, AZ (US);
Assignee:
Motorola, Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359569 ; 359570 ; 359728 ; 359737 ; 359900 ;
Abstract
A single fold optical magnifier including a plurality of optical elements having an aspheric field flattening light inlet with a light outlet directed at an angle to the inlet and a reflecting surface positioned to direct light from the inlet to the outlet. The optical elements define a light path from the inlet to the outlet with a total average optical length of approximately 15 to 35 millimeters. At least one aspheric surface and one diffractive optical element are positioned in the light path to provide aberration correction, and the optical elements are constructed to angularly magnify images by at least a power of ten.