发明名称 |
Method of making light polarizer |
摘要 |
There is described a method for making visible range dichroic polarizer material comprising a uniaxially stretched film of polyvinyl alcohol stained with iodine and treated with a borating solution containing a zinc salt. The method comprises the steps of staining a uniaxially stretched sheet of polyvinyl alcohol and further stretching the stained sheet while it is being treated with a borating solution containing a zinc salt. High efficiency visible range dichroic polarizer elements having good neutrality, very high extinction and high transmittance can be made according to the method.
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申请公布号 |
US4591512(A) |
申请公布日期 |
1986.05.27 |
申请号 |
US19850694921 |
申请日期 |
1985.01.25 |
申请人 |
POLAROID CORPORATION |
发明人 |
RACICH, JAMES L.;SCHULER, NORMAN W.;TRAPANI, GIORGIO B. |
分类号 |
G02B5/30;B05D3/12;B05D5/06;B05D7/04;B29C55/04;B29D11/00;B29K29/00;B29L11/00;(IPC1-7):B05D5/06 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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