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:
Sep. 29, 2009
Filed:
Sep. 07, 2006
Youngsman Bae, Gardena, CA (US);
Sohrab Mooasser, Santa Monica, CA (US);
Harish Manohara, Arcadia, CA (US);
Choonsup Lee, Pasadena, CA (US);
Kungsam Bae, Gardena, CA (US);
Youngsman Bae, Gardena, CA (US);
Sohrab Mooasser, Santa Monica, CA (US);
Harish Manohara, Arcadia, CA (US);
Choonsup Lee, Pasadena, CA (US);
Kungsam Bae, Gardena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
Described is a device having an anti-reflection surface. The device comprises a silicon substrate with a plurality of silicon spikes formed on the substrate. A first metallic layer is formed on the silicon spikes to form the anti-reflection surface. The device further includes an aperture that extends through the substrate. A second metallic layer is formed on the substrate. The second metallic layer includes a hole that is aligned with the aperture. A spacer is attached with the silicon substrate to provide a gap between an attached sensor apparatus. Therefore, operating as a Micro-sun sensor, light entering the hole passes through the aperture to be sensed by the sensor apparatus. Additionally, light reflected by the sensor apparatus toward the first side of the silicon substrate is absorbed by the first metallic layer and silicon spikes and is thereby prevented from being reflected back toward the sensor apparatus.