Ophthalmic lens inspection system and method

Details Ophthalmic lens inspection system and method Ophthalmic lens inspection system and method

1996-07-29

1998-04-28

Pham, Hoa Q.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

206 51, G01B 900

Patent

active

057452300

ABSTRACT:
A lens inspection method and apparatus comprising a pallet having wells for receiving one or more lens containers at the receiving point. A conveyor achieves uniformity of pallet motion when transporting the lens. The pallet wells includes holes that pass through the pallet. These holes, along with a side driven transport system, make possible an arrangement of a lamp and camera on opposite sides of the lens for capturing an image of a lens. A computer implemented algorithm processes the digitized image to determine the acceptability of the lenses. A lens disposition mechanism uses a signal generated by the computer and indicates lens acceptability to disposition the lens by physically separating a container with an acceptable lens from an unacceptable lens. After disposition of containers, the pallet is returned by conveyor to the lens receiving point.

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