Dark reference in CCD image sensors

US8760543B2 · kind B2 · utility

Assignee

• Truesense Imaging, Inc. · US

Inventors

• John P. McCarten · Penfield, US
• Eric J. Meisenzahl · Ontario, US

Key dates

• Filing date: Aug 30, 2012
• Grant date: Jun 24, 2014
• Expiry date: Feb 23, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/1515

Abstract

In various embodiments, image sensors include an imaging array of optically active pixels, a dark-reference region of optically inactive pixels, and two light shields disposed over the dark-reference region and having openings therein.