Method and apparatus for illuminating and imaging eyes through e

Details Method and apparatus for illuminating and imaging eyes through e Method and apparatus for illuminating and imaging eyes through e

1997-11-04

2000-05-30

Mehta, Bhavesh

Image analysis

Applications

Personnel identification

348 78, 351206, 351219, G06K 900, A61B 314

Patent

active

060699671

ABSTRACT:
A reliable method of illuminating and imaging an eye through eyeglasses uses a monochromatic light source with the smallest possible source area, 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. In an alternative embodiment, a partially-transparent mirror is used to make the light source appear to be on the optical axis of the camera as viewed from the subject's eye.

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