Lens inspection system using phase contrast imaging

Details Lens inspection system using phase contrast imaging Lens inspection system using phase contrast imaging

2006-11-21

2010-02-16

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

Lens or reflective image former testing

C356S239200

Reexamination Certificate

active

07663742

ABSTRACT:
The present invention relates to an inspection system for the automatic inspection of ophthalmic lenses, preferably in an automated lens manufacturing line. The inspection system provides a phase contrast imaging unit and an inspection method using said phase contrast imaging unit designed to recognize defective lenses with an improved degree of reliability but that does not falsely sort out perfect lenses.

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