An optical microscope that uses polarized light as the light source. The crystal phase microstructure of materials is studied by the interference principle of polarized light. If combined with compensator, the degree of orientation of materials can also be measured. Under conditions similar to bright field, isotropic and anisotropic materials can be distinguished, absorption light and optical path limit, and structure and composition of materials. Observe the size range of 0.2-100fim. The polarized light microscopy has two polarizers. A device located between the light source and the object being tested is called a "polarizing mirror"; Another device between the objective and eyepiece is called The "polarizer" can be combined into a single polarized light, orthogonal polarized light, cone light and other optical analysis systems by using various parts of the polarized light microscopy to identify the optical properties of crystal. When using the single polarizing lens to identify the optical properties of crystal, only the lower polarizing lens in the polarized light microscopy can be used to observe the white content: crystal shape, crystal particle size, percentage content, cleavage, protrusion, rough surface, beck line, color and polychromaticity Light mirror - refers to the combination of a lower polarizer and an upper polarizer. And the vibration surfaces of the two polarizers are in perpendicular positions to each other. Because the properties of crystal and the direction of slicing are different. Optical phenomena such as extinction and interference will occur.
Organic polymer materials -> Properties of polymer materials and their testing methods