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. 14, 2009
Filed:
Dec. 08, 2005
Takanobu Osaka, Kanagawa, JP;
Atsushi Takaura, Tokyo, JP;
Kazuhiro Fujita, Tokyo, JP;
Kazuya Miyagaki, Kanagawa, JP;
Takanobu Osaka, Kanagawa, JP;
Atsushi Takaura, Tokyo, JP;
Kazuhiro Fujita, Tokyo, JP;
Kazuya Miyagaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A micro-optical device includes a plurality of minute optical elements each having a curved surface operable to condense incident light. The minute optical elements are arranged at constant intervals. The curved surface is expressed by two or more F values. Each of the minute optical elements is a transmission lens element having the curved surface including a substantially flat part at a center of the transmission lens element, wherein the curved surface is convex or concave.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile