CASTING CUP ASSEMBLY FOR FORMING AN OPHTHALMIC DEVICE

Disclosed in this specification is a casting cup assembly (300) comprising frontcurve (302) and basecurve (304) molds which includes a ring (314, 324) that circumscribes the respective concave and convex mold surface (306, 316). When the casting cup is assembled, the rings align and minimize de-cent...

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Bibliographische Detailangaben
Hauptverfasser:	MCCONNELL, MARK, BURKILL, TIMOTHY, BERCKMILLER, GREGORY L, ANSELL, SCOTT F, BARRE, VINCENT H
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Disclosed in this specification is a casting cup assembly (300) comprising frontcurve (302) and basecurve (304) molds which includes a ring (314, 324) that circumscribes the respective concave and convex mold surface (306, 316). When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.