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. 08, 2021
Filed:
Sep. 28, 2018
Dexerials Corporation, Tokyo, JP;
Akio Takada, Tokyo, JP;
Kazuyuki Shibuya, Tokyo, JP;
Shigeshi Sakakibara, Tokyo, JP;
Toshiaki Sugawara, Tokyo, JP;
Yusuke Matsuno, Tokyo, JP;
Dexerials Corporation, Tokyo, JP;
Abstract
To provide a polarizing plate and an optical apparatus capable of improving durability while maintaining excellent optical characteristics. Provided is a polarizing platewith a wire grid structure, including: a transparent substrate; and a grid-shaped convex portionwhich is arranged on the transparent substrateat a pitch P shorter than a wavelength of light of a use band, extends in a predetermined direction, and includes a reflection layerformed of a light reflective material, wherein a surface of the grid-shaped convex portionand a surface of a bottom surface portion of a groove formed between the grid-shaped convex portionsare provided with a protection filmwhich covers the surfaces thereof and the protection filmis formed by two kinds or more of protection films including an organic film formed of an organic material.