Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 12, 2011
Patent Application Number
12389097
Date Filed
February 19, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a light direction sensor for determining the direction of a light source. The system includes an image sensor; a spacer attached to the image sensor, and a pattern mask attached to said spacer. The pattern mask has a slit pattern that as light passes through the slit pattern it casts a diffraction pattern onto the image sensor. The method operates by receiving a beam of light onto a patterned mask, wherein the patterned mask as a plurality of a slit segments. Then, diffusing the beam of light onto an image sensor and determining the direction of the light source.
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