Optical instruments are a very important component category in the instrumentation industry, and are indispensable tools for observation, testing, analysis, control, recording and transmission in various fields of industrial and agricultural production, resource exploration, space exploration, scientific experiments, national defense construction and social life. . In particular, the function of modern optical instruments has become the extension and expansion of the function of human brain.
After a long period of development, optical instruments have formed illuminometers, melting point meters, eyepieces, objective lenses, ultraviolet radiation meters, theodolites, levels, colorimeters, spectrometers, photometers, other optical instruments, tool presetters, spectrometers, Vertical collimator, night vision device, imager, projector, refractometer, magnifying glass, microscope, telescope, prism, lens, filter, color filter, laser level, laser rangefinder and several other subcategories.