Stereo microscopes can be classified in many ways according to different standards. The following are detailed classifications and their characteristics:
Classification by magnification:
Low-power stereo microscopes: The magnification is between 7X-45X, suitable for electronic product welding, circuit board inspection, etc.
Medium-power stereo microscopes: The magnification is between 20X-100X, suitable for biological dissection, specimen observation, etc.
High-power stereo microscopes: The magnification is above 100X, suitable for precision parts inspection, material analysis, etc.
Classification by optical path system:
Greenough optical path system: The imaging is three-dimensional and has high resolution, which is suitable for occasions with high image quality requirements, such as jewelry identification, antique restoration, etc.
CMO optical path system: The structure is simple and the cost is low, which is suitable for routine observation and inspection, such as electronic component inspection, printed product quality inspection, etc.
Galilean optical system: It has a wide field of view and a large depth of field, and is suitable for situations where larger samples need to be observed, such as PCB board inspection, textile inspection, etc. Classification by illumination method: Transmitted illumination: It is suitable for observing transparent or translucent samples, such as biological slices, LCD panels, etc. Reflected illumination: It is suitable for observing opaque samples, such as metal parts, mineral specimens, etc. Annular illumination: It provides uniform lighting effects and reduces shadows, and is suitable for precision parts inspection, surface defect inspection, etc. Classification by use: Industrial stereo microscope: It is mainly used for industrial production and inspection, such as electronic manufacturing, precision machining, etc. Biological stereo microscope: It is mainly used for biological research and teaching, such as anatomical experiments, specimen observation, etc. Gem identification stereo microscope: It is mainly used for gem identification and evaluation, such as diamond grading, jade identification, etc.
