Title:
A SPECTACLE WITH LENS AND PRISMS
Document Type and Number:
WIPO Patent Application WO/2000/072082
Kind Code:
A1
Abstract:
The present invention relates to a spectacle for the person to watch something close-up, of which the optical unit of the spectacles comprises of a lens and a certain number of prisms having bottom surfaces toward the nose integrally. The optical unit is made by informing integrally with molding optical thermoset or thermoplastic resin, hardening and coating film for anti-reflect. The power of the optical unit is showed by the diopter of lens D and diopter of prism $g(D).
Inventors:
XU SHUXIANG (CN)
XU XIAOGANG (CN)
XU XIAOGANG (CN)
Application Number:
PCT/CN2000/000126
Publication Date:
November 30, 2000
Filing Date:
May 22, 2000
Export Citation:
Assignee:
XU SHUXIANG (CN)
XU XIAOGANG (CN)
XU XIAOGANG (CN)
International Classes:
G02C7/02; G02C7/14; G02C5/00; (IPC1-7): G02C7/08; G02B3/08
Foreign References:
| US5204702A | 1993-04-20 | |||
| US5381191A | 1995-01-10 | |||
| US5076665A | 1991-12-31 | |||
| US4929075A | 1990-05-29 | |||
| US3904281A | 1975-09-09 |
Other References:
See also references of EP 1184710A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Centre 23 Harbour Roa, Wanchai Hong Kong Special Administrative Region, CN)
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