In a compound microscope, the sample is illuminated from the bottom to observe transmitted light, or from the top to observe reflected light. Light from the sample is collected by an optical system ...

Optical microscopy is a technique employed to closely view a sample through the magnification of a lens with visible light. This is the traditional form of microscopy, which was first invented before ...

Fundamentally, a microscope comprises two subsystems: an illumination system to illuminate the sample and an imaging system that produces a magnified image of the light that has interacted with the ...