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Imaging polarimeter with high angle resolution

机译：高角度分辨率成像旋光仪

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Abstract: The polarizer and the analyzer of the polarimeter are realized by Glan-Thompson-prisms which are characterized by a very high extinction. In this set-up only the object under test is located between the prisms, i.e. the polarization properties of the light are not distributed by optical components and high angle resolution is achieved. The disadvantage of these prisms is the use of the extraordinary ray causing an axial astigmatism. In the paraxial domain this astigmatism can be corrected by a simple cylindrical lens. However, this leads to a distorted scaling in the image, because the scaling in the active and the inactive direction of this lens is different. This disadvantage can be omitted by using a cylindrical optic which consists of at least two lenses having opposite sign of their focal length. The calculated result for this optic are verified experimentally. !7
机译：摘要：偏光计的偏振器和检偏器是通过格兰-汤普森棱镜实现的，该棱镜具有很高的消光特性。在这种设置中，仅被测物体位于棱镜之间，即，光的偏振特性不由光学部件分布，并且实现了高角度分辨率。这些棱镜的缺点是使用超常射线会引起轴向像散。在近轴区域，可以通过一个简单的柱面透镜来矫正这种散光。但是，这会导致图像缩放比例失真，因为此镜头在活动方向和非活动方向上的缩放比例不同。通过使用由至少两个具有其焦距符号相反的透镜的柱面光学器件，可以消除该缺点。该光学器件的计算结果已通过实验验证。 ！7

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