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:
Jan. 03, 2017
Filed:
Feb. 13, 2013
Hoya Lens Manufacturing Philippines Inc., Cavite, PH;
Yuta Hoshino, Shinjuku-ku, JP;
Yuko Imai, Shinjuku-ku, JP;
EHS LENS PHILIPPINES, INC., Cavite, PH;
Abstract
To provide an optical member, formed without generating cracks in a hard coat layer of desired film thickness, and a method of manufacturing an optical member that permits the manufacturing of the above optical member. The optical member of the present invention is characterized by comprising a lens substrate having a curved surface, a porous intermediate layer formed so as to cover an edge portion of the lens substrate in a planar view along an optical axis of the optical member, and a hard coat layer formed so as to cover the lens substrate and the intermediate layer in the planar view; as well as characterized in that the hard coat layer comprises a thick film portion, formed on the edge portion of the hard coat layer and thicker than a center portion of the hard coat layer in the planar view, and when a maximum film thickness of the intermediate layer is denoted as A (μm) and a maximum film thickness of the thick film portion is denoted as B (μm), a relation of A/B being equal to or greater than 3% but equal to or less than 20% is satisfied.