发明授权
- 专利标题： Seamless master and method of making same
- 专利标题（中）： 无缝主人和制作方法
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申请号： US09656681申请日： 2000-09-07
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公开(公告)号： US06675863B1公开(公告)日： 2004-01-13
- 发明人: San Zhuang Wang , Gajendra D. Savant , Ed Kaiser , Kang S. Lee
- 申请人： San Zhuang Wang , Gajendra D. Savant , Ed Kaiser , Kang S. Lee
- 主分类号： B22D2300
- IPC分类号： B22D2300
摘要：
Hollow, cylindrical, seamless metal master for producing seamless diffuser sheets of preselected length and width. Additional aspects of the invention include a hollow cylindrical seamless invertable elastomeric master and method of making the same and an apparatus and process for effecting variable diffuser recording in photosensitive medium.
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