Title:
レンズしるしおよびレンズにしるしを形成する方法
Document Type and Number:
Japanese Patent JP2007508170
Kind Code:
A
Abstract:
A contact lens 10 is molded with indicia 64 that are etched into a mold tool 1. In one embodiment, the tool is made of stainless steel and is masked and electrochemically etched with a solution of sodium chloride. The voltage and current are DC and they and the time and temperature are controlled to provide a desired depth of etch.
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Inventors:
Borden, Ronald E.
Durres-Terra Nova, Susan
Durres-Terra Nova, Susan
Application Number:
JP2006535629A
Publication Date:
April 05, 2007
Filing Date:
October 13, 2004
Export Citation:
Assignee:
BAUSCH & LOMB INCORPORATED
International Classes:
B29D11/00; B29C33/38; B29C33/42; G02C7/00; B29C39/02; B29L11/00
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita