Polarization and Interference Colors
偏振与干涉色
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Selected thicknesses of birefringent materials can be used to form colorful shapes like this butterfly when placed between crossed polarizers. The segments change color when you rotate the front polarizer, but are colorless in ordinary light. These are examples of interference colors. 选定的双折射材料的厚度可以用来制作如这只蝴蝶般的彩色形状，当将其置于交叉偏振器之间时即可呈现。当旋转前侧的偏振器时，这些段会改变颜色，但在普通光下却是无色的。这些是干涉色的例子。 |
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This material shows a fan-shaped color variation when the polariod is rotated. 这种材料在偏振片旋转时会呈现出扇形的色彩变化。 |
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This sample appears to be ordinary cellophane tape, but it shows a dramatic change in color as the second sheet of polaroid is rotated.
这种样品看起来像是普通的胶带，但当第二张偏振片旋转时，它显示出颜色的显著变化。
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This sample is taken to be a thin slice of a mineral. It shows color changes as it is rotated between crossed polarizers.
这块样本被视为矿物的一个薄片。当它在交叉偏振器之间旋转时，会显示出颜色变化。
| Crossed polarizers
交叉偏振器 |
Polarization concepts
Hecht
Optics, Sec 8.9
索引偏振概念 Hecht光学，第8章第9节
| HyperPhysics***** Light and Vision
HyperPhysics ***** 光与视觉 | R Nave |
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