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. 24, 2001
Filed:
Oct. 22, 1999
Fred Vincent Richard, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An optical display system for magnifying the image of a liquid crystal display cell (,) used in a portable electronic device (,) such as a cellular phone or smart card reader having a light focusing and deflecting array (,), a light coupling element (,) and a magnifying lens element (,). The light focusing and deflecting array (,) includes an array of lenslets (,) that receive light rays from the liquid crystal display cell (,) and impart an angular component to the light rays. The magnitude of this angular component increases moving radially outward along the light focusing and deflecting array. The light coupling element (,) couples the deflected light rays to the magnifying lens element without substantial refraction thereof. The magnifying lens element (,) has a unitary lens having a biaxial gradient index of refraction, which causes the light rays to be bent initially outward then inward. The combination of light focusing and deflecting array (,), light coupling element (,) and magnifying lens element (,) produce a magnified image of liquid crystal display cell (,) within a very low profile package.