Melipal 发表于 2003-6-19 23:59

透过冰晶的偏振光

Frizion Illume
Credit & Copyright: Peter Wasilewski (Goddard Space Flight Center)

Explanation: Scientific images of cosmic dust clouds or even frozen water can be esthetic too. In fact, this picture of thin layers of forming ice crystals uses a scientific understanding of light's wave properties solely for artistic purposes. Titled "Illume", the picture was created by astrophysicist Peter Wasilewski. To make the picture, the crystals were illuminated by light shining through a polarizing filter -- a filter that restricts the otherwise randomly oriented light waves to vibrate in only one direction. While passing through the ice, different colors of the polarized light are then refracted and reflected along slightly different paths by the delicate crystalline layers. Viewing the scene with a second polarizing filter brings out the wondrous display of structure and color. Painting with "light, the laws of physics, and an attitude" Wasilewski has created a series of these evocative ice images that he refers to as Frozen Vision or Frizion.

Astronomy ying 发表于 2003-6-21 14:44

这是一幅想象图吗？

宝宝星 发表于 2003-6-21 14:47

有点意思

不错不错

Melipal 发表于 2003-6-21 15:59

不是想象图，是NASA搞的什么鬼玩意，倒是挺有意思的……

portiff 发表于 2003-6-22 16:11

炫

qqyishan 发表于 2003-6-24 13:08

是肉眼可以看到的还是经过特殊处理后的效果？

qqyishan 发表于 2003-6-24 13:10

哪是哪呀，下面那个尖尖的就是冰晶吗？

Astronomy ying 发表于 2003-7-4 14:30

偏振光是什么来的？

Melipal 发表于 2003-7-10 23:19

这幅照片名叫Frizion Illume，是让经过偏振镜的光线透过一薄层冰，之后再通过一片偏振镜而拍摄的。
在Goddard Space Flight Center的网站上还有若干张类似的照片。
偏振镜的作用是滤去其他方向上杂乱照射的光线，只允许一个方向的光线传播。
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