Polarizing Rotator Plate 

Material: For instance, quartz rotator plates are made from quartz crystals, which possess natural optical rotation properties. The light transmission range of the material should also be considered; for example, quartz crystals are suitable for a range of 200 - 2500nm. 

Dimensional Tolerance: For products with diameters up to 50.8mm, the dimensional tolerance is ±0.2mm. 

Rotation Angle Accuracy: Reflects the precision of the rotation angle. For some products, the rotation angle accuracy is less than 5 arc minutes. 

Parallelism: Some products exhibit parallelism of less than 10 arc seconds. 

Wavefront Distortion: For example, at a wavelength of 632.8nm, the wavefront distortion can reach λ/4.

 Surface Quality: Generally represented by numbers, such as 20/10. 

Coating: For instance, both sides are coated with anti-reflection coatings, resulting in a reflectivity R of less than 0.25% at the central wavelength.