Semiconductor microscope based on double-back-group technology

The invention relates to the technical field of microscopes, and particularly discloses a semiconductor microscope based on a double-back-group technology, which comprises an objective lens, a differential interference comparison module, a first lens barrel, a second lens barrel, a third lens barrel, a first polarizer, a second polarizer, an optical filter, an eyepiece, an illuminating lens group and a light emitting diode, the objective lens, the differential interference comparison module, the first lens barrel, the third lens barrel, the second polarizer, the optical filter and the eyepiece are sequentially arranged along the direction of an optical axis; the first polarizer, the second lens cone, the illumination lens group and the light emitting diode are arranged in sequence along the direction of an optical axis; according to the semiconductor microscope based on the double-back-group technology, superposition of the depth of field is achieved through light beam superposition, the problem that the dept