Title:
【発明の名称】非点収差補正用眼鏡レンズ
Document Type and Number:
Japanese Patent JP3142127
Kind Code:
B2
Abstract:
PCT No. PCT/DE88/00443 Sec. 371 Date May 18, 1989 Sec. 102(e) Date May 18, 1989 PCT Filed Jul. 18, 1988 PCT Pub. No. WO89/00710 PCT Pub. Date Jan. 26, 1989.An ophthalmic lens for use in the correction of astigmation, wherein in order to reduce the critical thickness and/or the variation of the edge thickness along the circumference of the lens, the refractive index changes at least along the critical main section in such a manner that at least part of the cylindrical correction is attained by the refractive index variation.
Inventors:
Guirino Gunter
Pfeiffer. Herbert
Altheimer Helmut
Pfeiffer. Herbert
Altheimer Helmut
Application Number:
JP50598588A
Publication Date:
March 07, 2001
Filing Date:
July 18, 1988
Export Citation:
Assignee:
Optiche. Welke. G. Rodenstock
International Classes:
G02B3/02; G02B9/00; G02B13/18; G02C7/02; G02C7/06; (IPC1-7): G02C7/06; G02B3/02; G02B9/00; G02B13/18
Domestic Patent References:
| JP5710112A |
Other References:
【文献】米国特許3486808(US,A)
【文献】米国特許4561736(US,A)
【文献】英国公開2191017(GB,A)
【文献】米国特許4561736(US,A)
【文献】英国公開2191017(GB,A)
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