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:
Dec. 16, 2014
Filed:
Jul. 17, 2012
Jay R. Winkler, Pasadena, CA (US);
Gates R. Winkler, Pasadena, CA (US);
Jay R. Winkler, Pasadena, CA (US);
Gates R. Winkler, Pasadena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
An LED-based materials analysis apparatus that measures the photoelectrochemical response of materials to illumination. The apparatus uses an array of light sources such as a plurality of LEDs that provide light of desired wavelengths to illuminate one or more samples of materials of interest that are immersed in an electrolyte. A measurement circuit is connected between a transparent conductor attached to each sample of interest and a counter electrode. In some measurements, a third, standard electrode may be connected to the measurement circuit. A pulsing circuit that operates the LEDs causes each sample to be tested according to a predetermined sequence. Data is collected using a programmable computer operating under the control of instructions recorded on a machine readable medium. The data is analyzed and is available to be displayed to a user, recorded in a database, or communicated to another apparatus or process.