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. 26, 2011
Filed:
Sep. 22, 2009
Akiko Miyakawa, Sagamihara, JP;
Hirofumi Ishiyama, Isehara, JP;
Akiko Miyakawa, Sagamihara, JP;
Hirofumi Ishiyama, Isehara, JP;
Nikon Corporation, Tokyo, JP;
Abstract
The present invention provides a resin-cemented optical element comprising a base memberand a resin layerformed on the surface of the base member; the resin layerbeing in a thickness of 300 μm or smaller at least at some part of a peripheral portion (i.e., a region within 1 mm from the peripheral edge faceof the resin layer, or a region outside an effective-diameter region), and being in a thicknessof 850 μm or larger at a position which is thickest in the resin layer; a mold therefore; a manufacturing method thereof; and an optical article having this optical element.