请问相位膜的含义是什么？有什么用处？

liunan2567

请问：望远系统中屋脊棱镜的两个90°面需镀相位膜，相位膜的含义是什么？有什么用处？

darkspace4321

http://www.pentaxusa.com/news/news_display.cfm?pressid=71

What is phase coating and what does it do?

By design, roof prism binoculars split the light entering the barrels into two separate paths. Although they are subsequently forced back together when they reach the viewer's eye, this results in reduced contrast and image resolution . . . sometimes referred to as "out of phase" or "phase shift." PENTAX has incorporated a thin coating on the roof prism surface in its DCF WP binoculars, which forces the light beams back into phase, thus creating enhanced contrast and a sharper view.

liunan2567

非常感谢!!

coatingzhang

可以和上海光机所薄膜中心黄博士联系，他专门研究相位膜

勤学好问

请问黄博士的联系方式是？？？我有事相商．黄博士可以和我联系．

　　　　　　　kaixinmaliu999@163.com.

请指教，谢谢．

d2ma

以下是引用liunan2567在2004-5-19 8:36:33的发言： 请问：望远系统中屋脊棱镜的两个90°面需镀相位膜，相位膜的含义是什么？有什么用处？

你若知道园偏振光和椭圆偏振光对成像不同的效果，就会知道相位膜的用途拉

eagle1

也请告知黄博士的联系方式，或者黄博士看到后能够联系我：

lianwen_zh@163.com

xiaolan125

急需相位膜设计及工艺 ，请教下啊