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. 13, 2021
Filed:
Mar. 02, 2018
Kyoto University, Kyoto, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Shunsuke Murai, Kyoto, JP;
Yusuke Yokobayashi, Tokyo, JP;
Masaru Kuramoto, Tokyo, JP;
Keijiro Takashima, Tokyo, JP;
Syousaku Kubo, Tokyo, JP;
KYOTO UNIVERSITY, Kyoto, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Abstract
An illumination device includes a light source configured to generate primary light having a Gaussian intensity distribution, an intensity-distribution converting member configured to convert the primary light to generate secondary light having a top-hat type intensity distribution, a wavelength converter configured to receive the secondary light from a light-receiving surface, generate tertiary light including the secondary light and wavelength-converted light in which a wavelength of the secondary light has been converted, and emit the tertiary light from an emission surface, and an antenna array having a plurality of optical antennas formed on the emission surface of the wavelength converter and arranged at a period larger than an optical wavelength of the secondary light in the wavelength converter.