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US 7,079,239 B2Granted
Ophthalmic lens transportation and inspection cell
AssigneeBausch & Lomb Incorporated
InventorsMarc Bergendahl, David Lewison, Raymond H. Puffer, Jr.
Life of this patent
Estimating the term…
Abstract
A method and apparatus for an inspection cell that allows contact lenses to be presented in a known orientation to an operator or vision system for inspection. The cell can be tipped to allow the inspected lens to be placed into a known pick-cup location upon passing inspection, or if the lens does not pass inspection, it can be discarded. The placement or discarding of the lens can be readily automated by selecting the rate at which the cell is tipped.
Claims13
An inspection cell for optical devices comprising:
- a block of optically transparent material having a concave bowl and a spillway formed in an exterior surface thereof, said spillway integrated with the bowl;
- and
- a retainer for holding the block via a pivot point that allows the block to tip.
A method for inspecting lens comprising the steps of:
- providing a block of optically transparent material having a concave bowl and a spillway formed in an exterior surface thereof, said spillway integrated with the bowl;
- pivotally mounting the block within a retainer that allows the block to tip;
- filling the bowl with a fluid;
- placing a lens in the bowl;
- and
- tipping the bowl to empty the fluid and the lens.
3 more elements
Dependencies are inferred from the claim text.