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:
Mar. 08, 2022
Filed:
Oct. 17, 2018
Lumileds Llc, San Jose, CA (US);
Erno Fancsali, Aachen, DE;
Rob Engelen, Aachen, DE;
Lumileds LLC, San Jose, CA (US);
Abstract
The invention describes a device () and a method () for bio metric identification of an object with a significantly improved signal-to-noise ratio. The device comprises an optical image sensor element () at least sensitive to an infrared spectrum to take at least one picture () of the object () under ambient light conditions (ALC) with additional infrared light conditions (ILC), an infrared light source () to provide additional infrared light (IR) for the infrared light conditions (ILC), and a processing unit () to provide an image or image code () for the bio metric identification obtained from the picture (), where the infrared light source () emits a narrow infrared light spectrum with a peak wavelength () between 925 nm to 955 nm and with a full width of half maximum of less than 5 nm, and where an infrared bandpass filter () is arranged in the light path (LP) between the object () and a sensor array of the optical image sensor element () having a transmission window () between 925 nm and 955 nm covering at least the peak wavelength () of the infrared light source ().