Lens screening device
AssigneeHon Hai Precision Industry Co., Ltd.
InventorChung-Pei Wang
Life of this patent
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Abstract
An lens screening device for controlling diameters of lenses within a range from a lower threshold to a upper threshold. The lens screening device includes a number of connecting poles and two screening plates. Each of the screening plates includes a tray and a scraper slidably disposed on the tray and configure for scraping the tray. The tray defines a number of through holes of same diameter therein. The diameter of the through holes in an upper screening plate is larger than that of the through holes in a lower screening plate.
Claims7
A lens screening device for screening lenses having a diameter within a range from a lower threshold to an upper threshold, the lens screening device comprising:
- a plurality of supporting poles;
- and
- two screening plates, each of which comprises:
- a tray supported by the poles and defining a plurality of through holes of a same diameter;
- and
- a scraper slidably disposed on the tray and configured for scraping the tray;
- wherein the diameter of the through holes in an upper screening plate is greater than that of the through holes in a lower screening plate.
Dependencies are inferred from the claim text.