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. 02, 2013
Filed:
Feb. 25, 2011
Masaki Suzuki, Miyagi, JP;
Masashi Enomoto, Tokyo, JP;
Hironori Yoshida, Miyagi, JP;
Tsutomu Nagahama, Miyagi, JP;
Toru Yatabe, Miyagi, JP;
Masamitsu Kageyama, Miyagi, JP;
Masaki Suzuki, Miyagi, JP;
Masashi Enomoto, Tokyo, JP;
Hironori Yoshida, Miyagi, JP;
Tsutomu Nagahama, Miyagi, JP;
Toru Yatabe, Miyagi, JP;
Masamitsu Kageyama, Miyagi, JP;
Dexerials Corporation, Tokyo, JP;
Abstract
An optical element has a first optical layer; a reflective layer; and a second optical layer. The reflective layer includes at least five layers of high refractive-index layers and metal layers alternately laminated. When a thickness L of the entire reflective layer is 80 nm, a ratio α of an optical thickness of the entire metal layers to that of the entire high refractive-index layers and a ratio β of an optical thickness of a third high refractive-index layer to that of a first high refractive-index layer are included in a first region, when the thickness L is 90 nm, the ratios α and β are included in a second region, and when the thickness L is 80 to 90 nm, the ratios α and β are included in a space enclosed by the first region, the second region, and straight lines derived from these regions.