Apparatus and method for detecting lens thickness

Optics: measuring and testing – Lens or reflective image former testing

Reexamination Certificate

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C356S613000, C356S632000

Reexamination Certificate

active

07433027

ABSTRACT:
The present invention relates to a non-contact
on-destructive method and apparatus for measuring the thickness of an ophthalmic lens. The present invention also provides a method for inspecting or measuring the base curve of a lens.

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