PLASTIC LENS AND PROCESS OF MAKING PLASTIC LENS Russian patent published in 2006 - IPC G02C7/10 G02B1/04 C08K5/07 B29D11/00 

Abstract RU 2271026 C1

FIELD: ophthalmology.

SUBSTANCE: process of making plastic lens related to techniques used for making lenses which can be applied in ophthalmology and optical engineering. Plastic lens proposed is capable if absorbing UV radiation. Lens has light yellow color. Plastic lens has plastic substrate based on derivation of benzophenone which is presented by formula I given in the description, where R is linear or branched alkyl group having 2 to 12 atoms of carbon or alkoxyl group having 2 to 12 atoms of carbon.

EFFECT: improved absorption.

11 cl, 11 dwg

Similar patents RU2271026C1

Title Year Author Number
PLASTIC LENS AND METHOD FOR MAKING THE SAME 2004
  • Itokh Sinsuke
  • Kosaka Masakhisa
RU2283765C2
MANUFACTURING OPTICAL COMPLEX LENSES AND LENS MANUFACTURED BY THIS METHOD 1995
  • Amitava Gupta
  • Ronal'D D.Bljum
  • Venkatramani S.Ajer
  • Pol Dzh.Nehgg
RU2136497C1
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 MANUFACTURING PHOTOCHROMIC COMPOSITE PLASTIC LENSES (VERSIONS), COMPOSITE PLASTIC OPTICAL LENS 1994
  • Amitava Gupta
  • Ronal'D D.Blum
RU2150388C1
STABLE POLYMERISABLE UV-ABSORBING DYE FOR INTRAOCULAR LENS 2013
  • Tamura Masakhiro
  • Osita Takakhide
RU2635918C1
METHOD OF MANUFACTURE OF THE PLASTIC LENSES AND THE PLASTIC LENS 2004
  • Kosaka Masakhisa
  • Janagida Tomoaki
  • Kitakhara Esitaka
RU2275302C1
SILICONE HYDROGEL CONTACT LENSES 2018
  • Zhang, Steve Yun
  • Wu, Daqing
  • Ge, Junhao
  • Breitkopf, Richard Charles
  • Qian, Xinming
  • Munoz, Zach
  • Nelson, Matthew D.
  • Kumi, Augustine Twum
  • Lang, Weihong
  • Zheng, Ying
  • Jing, Feng
  • Chang, Frank
RU2769703C2
MULTIFOCAL CONTACT LENS SHOWING IMPROVED VISUAL PERFORMANCE 2020
  • Makhadevan, Shivkumar
  • Rajt, Don D.
  • Klark, Ronald Dzh.
  • Karkkainen, Tomas R.
  • Nenkivil, Derek
RU2825122C1
SILICONE HYDROGEL CONTACT LENSES 2018
  • Wu, Daqing
  • Ge, Junhao
  • Zhang, Steve Yun
  • Breitkopf, Richard Charles
  • Qian, Xinming
  • Munoz, Zach
  • Nelson, Matthew D.
  • Kumi, Augustine Twum
  • Lang, Weihong
  • Zheng, Ying
  • Jing, Feng
  • Chang, Frank
RU2766412C2
OPHTHALMIC LENS 2013
  • De Ajgvavives Fransisko
  • Mori Elen
RU2627954C2

RU 2 271 026 C1

Authors

Kosaka Masakhisa

Itokh Sinsuke

Dates

2006-02-27Published

2004-08-04Filed