fay 发表于 2004-10-29 00:27:00

who can supply standard Fresnel lens?

<P>who can provide standard Fresnel lens? I have to buy from www.fresneltech.com/ which is very expensive. you can find their catalog at http://www.fresneltech.com/pdf/FresnelLenses.pdf</P>
<P>please send me your catalog to fwang@asmpt.com. you can find we are a worthy customer. </P>
<P>Please don't ask me for the mass production, what we need is small amount but versatility. </P>

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stevenwu 发表于 2004-11-10 20:36:00

我知道山东有一家在给3M配套做书写投影仪上的fresnel透镜，实力应该不错。

妩点依依 发表于 2004-11-10 22:33:00

<P>这是一个什么样的产品啊？有什么作用？</P>

sun8-1-1978 发表于 2004-11-23 02:37:00

<P>成像</P>

liuhk 发表于 2004-12-5 20:28:00

<P>了解的人越來越多,應用也越來越廣,但是光損失的部份不知道有沒有人能解決?</P>
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