METHOD OF LENS PRODUCTION, METHOD OF PRODUCTION OF COMPLETELY MACHINED LENS AND ITS BLANKS Russian patent published in 1998 - IPC

Abstract RU 2116891 C1

FIELD: production of lenses. SUBSTANCE: lens blank is positioned relative to mold 13 with formation of narrow cavity 14, 16 for molding the external surface of lens with optical properties. This cavity is fed with resin of material having optical properties which contains initiator activated by ultraviolet radiation. Resin does not contain thermal initiators. Then resin is consolidated by supplying of ultraviolet radiation and heating. Heat supply is controlled to balance degree of consolidation of resin sections which have different thickness. EFFECT: enhanced producing process. 24 cl, 12 dwg, 9 expo

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RU 2 116 891 C1

Authors

Ronal'D D.Bljum

Dates

1998-08-10—Published

1992-10-16—Filed