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. 02, 2009
Filed:
Sep. 24, 2004
Yasuhiro Kume, Kawachinagano, JP;
Noriaki Ohnishi, Nara, JP;
Naoko Mizusaki, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A dioptric element array substrateincludes: a first dioptric element arrayhaving a plurality of first dioptric elementsarranged two-dimensionally; a second dioptric element arrayhaving a plurality of second dioptric elements 4a having a first refractive index arranged two-dimensionally in one-to-one correspondence with the first dioptric elements; and a third dioptric element arrayhaving a second refractive index different from the first refractive index. Principal rays of beams incident on the first dioptric element array at different angles and converged with the first dioptric element array are collimated with the second and third dioptric element arrays.