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:
Oct. 31, 2023
Filed:
Aug. 24, 2017
Riken, Wako, JP;
Kentaro Takatori, Wako, JP;
Takayuki Okamoto, Wako, JP;
RIKEN, Saitama, JP;
Abstract
In order to realize a light absorber wherein the wavelengths absorbed can be adjusted, an embodiment of the present invention provides a light absorberprovided with a group of dielectric protrusions, a conductive thin film, and a conductive thick film. The group of dielectric protrusions has each dielectric protrusion protruding at a random position on a dielectric surface. A dielectric thin film is disposed on or above at least part of the surface of the dielectric protrusions and on or above at least part of the dielectric surface where the dielectric protrusions are not present; and the dielectric thick film spreads out along the dielectric surface and being kept separate from the dielectric thin film. The group of dielectric protrusions can be provided by disposition of dielectric particles in an in-plane random arrangement on the surface. The present invention also provides a bolometer, an infrared light absorber, a solar thermal power generating device, and a radiative cooling film adopting the light absorber above as well as a method for manufacturing the light absorber.