Optional Features:

  • TempTrol automatic electronic heating and cooling 15° – 40°C ±0.2°
  • 365nm, 405nm, 436nm, 578nm, and 633nm wavelengths (a total of 2-4 wavelengths may be ordered initially or as needed)
  • AP accuracy option: 0.004° Arc optical rotation
  • AP resolution option: 0.01, 0.001° Arc selectable

The high quality polarizing prisms are two of the most critical optical components in the polarimeter. The Autopol I uses the same high quality Glan Thompson Calcite polarizers with excellent light transmission characteristics used in our high accuracy models. These polarizers are superior to the Polaroid Plastic Dichroic Sheet polarizers used by other manufacturers in this price range.


Constructed from polymeric plastic where the molecules are stretched and oriented in a specific direction so as to linearly polarize light, Dichroic Sheet polarizers are vulnerable to heat, warping and deterioration from moisture. They also have greater light absorption than Calcite Polarizers.

Plastic polarizers often need replacing after just 3 to 5 years. The Glan Thompson Calcite polarizers have a carbon crystalline structure similar to diamond and are guaranteed over the life of the polarimeter.

Subscribe to the QCL Polarimetry,Refractometry and Density Newsletter