國立自然科學博物館

偏振鏡由兩片光學玻璃夾著一片有定向作用的微小偏光性質晶體（如雲母）組成。還有另一種製造方法，兩片光學玻璃之間的夾層塗有聚乙烯膜或聚乙烯氰一類的結晶物，這一聚合物塗層可產生極細的柵欄狀的結構，好像是一道細密的柵欄，只允許振動方向與縫隙相同的光通過。再將這兩片玻璃各自獨立地安裝在可以旋轉的環圈裡，通過旋轉其中一鏡片便可以消除被攝物體表面的偏振反射光。通過偏振光可以把透明材料的干涉顏色拍出來

A polarizer consists of two pieces of optical glass sandwiching a piece of crystal with a small polarizing property (such as mica) that has a directional effect. There is another method of creating a polarizer. The interlayer between the two pieces of optical glass can be coated with a crystal such as polyethylene film or polyvinyl cyanide. This polymer coating can produce a very fine fence-like structure, which acts like an actual fence and only allows light with the same vibration direction and gap to pass through. The two pieces of glass are then independently installed in a rotatable ring. By rotating one of the lenses, the polarized reflected light on the surface of the object can be eliminated. A light polarizer can capture the interference colours of transparent materials.

拍攝地點家中，這幾張照片我是用了面積更大的偏振膜替代了覆蓋在光源上的偏振鏡。拍攝的過程是把偏振膜放在玻璃桌上，然後把塑膠製品擺成自己想要的形狀放在偏振膜上，架好三腳架，將相機垂直對著偏振膜，在相機鏡頭前裝好偏振鏡，在玻璃桌下方正對著偏振膜放一盞燈，打開燈，然後關閉其他現場光源。這時一邊在相機取景窗裡看著塑膠製品，一邊旋轉鏡頭前的偏振鏡，你會發現神奇的事情：本來是透明的塑膠製品和晶體卻變成了七彩的顏色，我們接著慢慢旋轉偏振鏡，直到旋轉到某一點的時候背景會完全變黑，這時就是給這些塑膠製品拍攝藝術照的時候了。iso64，百微，F8

The shooting location was at home. In these pictures, I used a larger polarizing film instead of the polarizer covering the light source. The process of shooting involves putting the polarizing film on a glass table, and then putting the plastic products in the preferred form on the polarizing film, setting up a tripod, pointing the camera perpendicularly to the polarizing film, and installing a polarizer in front of the camera, putting a light source directly under the glass table facing the polarizing film, turning on the light, and then turning off the other on-site light sources. At the same time, while looking at the plastic product in the camera viewfinder, rotate the polarizer in front of the lens. A magical view will appear: the plastic products and crystals that were originally transparent turn into various colours, and we then slowly rotate the polarizer, until the background is completely dark when rotated to a certain point, then it is time to take artistic photos of these plastic products. Equipment: iso64, 100mm, F8.