06252977 is referenced by 81 patents and cites 8 patents.

A reliable method of illuminating and imaging an eye through eyeglasses uses a carefully selected subset of multiple monochromatic light sources, a camera with an imager that exhibits minimal blooming, and a narrow-bandwidth optical bandpass filter to filter out most of the ambient illumination while passing most of the light from the system's own illuminator.

Title
Method and apparatus for illuminating and imaging eyes through eyeglasses using multiple sources of illumination
Application Number
9/550845
Publication Number
6252977 (B1)
Application Date
April 17, 2000
Publication Date
June 26, 2001
Inventor
Keith James Hanna
Princeton
NJ, US
Marcus Salganicoff
Philadelphia
PA, US
Agent
Woodcock Washburn Kurtz Mackiewicz & Norris
US
Assignee
Sensar
NJ, US
IPC
G06K 9/00
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