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:
Feb. 02, 2021
Filed:
Jul. 12, 2019
Kyoto University, Kyoto, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Shunsuke Murai, Kyoto, JP;
Yusuke Yokobayashi, Tokyo, JP;
Yasuyuki Kawakami, Tokyo, JP;
Keijiro Takashima, Tokyo, JP;
Syousaku Kubo, Tokyo, JP;
Yosuke Maemura, Tokyo, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
KYOTO UNIVERSITY, Kyoto, JP;
Abstract
A wavelength conversion device includes: a wavelength conversion element having a phosphor plate that converts the wavelength of incident light upon a light incident surface to generate wavelength-converted light, and emits the wavelength-converted light from a light emission surface; an antenna array constituted of a plurality of optical antennas that are periodically arranged on the light emission surface of the phosphor plate; and a recessed structure including at least one recessed portion provided in the light emission surface of the phosphor plate.