Soft contact lens apparatus

Details Soft contact lens apparatus Soft contact lens apparatus

1979-11-05

1981-07-07

Punter, William H.

Optics: measuring and testing

Sample, specimen, or standard holder or support

350245, 356125, G01N 2113

Patent

active

042771722

ABSTRACT:
Improved apparatus for transporting and positioning a contact lens immersed in a liquid for inspection is disclosed. The device has a plurality of supporting surfaces and a weight to biase the lens against the surfaces during immersion and prevent unintentional motion of the lens in the liquid during inspection.

REFERENCES:
patent: 2960909 (1960-11-01), Shipley, Jr.
patent: 3904276 (1975-09-01), Whitaker et al.
patent: 3985445 (1976-10-01), Tagnon
Birch, K. G., "The Construction & Proving of Three 50 mm Focal Length Standard Reference Lenses", Optica Acta 1971, pp. 139-147.

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