NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Dynamic optical filtrationA dynamic optical filtration system and method effectively blocks bright light sources without impairing view of the remainder of the scene. A sensor measures light intensity and position so that selected cells of a shading matrix may interrupt the view of the bright light source by a receptor. A beamsplitter may be used so that the sensor may be located away from the receptor. The shading matrix may also be replaced by a digital micromirror device, which selectively sends image data to the receptor.
Document ID
20080005117
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Chretien, Jean-Loup
Lu, Edward T.
Date Acquired
August 24, 2013
Publication Date
March 8, 2005
Subject Category
Instrumentation And Photography
Report/Patent Number
Patent Number: US-PATENT-6,864,473
Patent Application Number: US-PATENT-APPL-SN-988855
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-6,864,473
Patent Application
US-PATENT-APPL-SN-988855
No Preview Available