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

Similar patents RU2116891C1

Title Year Author Number
MANUFACTURING OPTICAL COMPLEX LENSES AND LENS MANUFACTURED BY THIS METHOD 1995
  • Amitava Gupta
  • Ronal'D D.Bljum
  • Venkatramani S.Ajer
  • Pol Dzh.Nehgg
RU2136497C1
METHOD OF MANUFACTURING PHOTOCHROMIC COMPOSITE PLASTIC LENSES (VERSIONS), COMPOSITE PLASTIC OPTICAL LENS 1994
  • Amitava Gupta
  • Ronal'D D.Blum
RU2150388C1
LENS WITH VARIABLE REFRACTIVE INDEX 1997
  • Bljum Ronal'D D.
  • Gupta Amitava
RU2193225C2
COMPOSITIONS AND METHODS FOR MANUFACTURING OPHTHALMOLOGICAL LENSES 2000
  • Nunez Ajven
  • Sekkharipuram Venkat
  • Ehlton Mishel'
RU2257396C2
OPTICAL WORKPIECE, PART OF OPTICAL DEVICE, OPTICAL DEVICE ( VARIANTS ) AND PROCESS OF ITS MANUFACTURE 1997
  • Gupta Amitava
  • Blum Ronal'D D.
RU2178576C2
SEGMENTAL MULTIFOCAL CONTACT LENS AND METHOD OF ITS MANUFACTURE VARIANTS 1992
  • Dzheffri Kh.Roffman[Us]
  • Ehdgar Menezes[Us]
  • Robert Labell'[Us]
  • Dzhon Skrajvener[Gb]
RU2099760C1
POLYMER COMPOSITION FOR MANUFACTURING CONTACT LENS, METHOD OF MANUFACTURING CONTACT LENS, AND METHOD OF IMPROVING VISIBILITY OF AN OBJECT BY HUMAN EYE EQUIPPED BY THIS CONTACT LENS 1995
  • Ehngardio Tomas Dzh.
  • Dalsin Filip D.
  • Kang Dae Ki
  • Li Dzhin S.
RU2142151C1
METHOD OF MAKING OPHTHALMOLOGIC LENS WITH CONDUCTING MATERIAL 2009
  • P'Ju Rehndall B.
  • Otts Dehniel B.
RU2501653C2
METHOD OF OBTAINING MATERIAL FOR PRODUCING THERMOCHROMIC CONTACT LENS MATERIAL 2011
  • Al'Vares-Karrigan Najibi
  • D'Juis Donni Dzh.
  • Grehmmer Kholli L.
  • Kindt-Larzen Ture
  • Molok Frehnk F. Ml.
  • Pehtton Jakunda
  • Pedersen Kim Sander
  • Dzhordzh Ehrik R.
RU2564052C2
OPHTHALMIC LENS WITH IMPROVED SURFACE 2011
  • Pyu Rendall B.
  • Fadli Zokhra
  • Nataradzhan Sriram
  • Kuper Kevin
  • Viakarnam Merti N.
RU2592718C2

RU 2 116 891 C1

Authors

Ronal'D D.Bljum

Dates

1998-08-10Published

1992-10-16Filed