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Return To Microscope FAQ Archive   Search the Archives What are compound microscopes? Answered By Evan Mattensen, Editor A Compound Microscope is a microscope that consists essentially of two or more double convex lenses fixed in the two extremities of a hollow cylinder. The upper lens is the eyepiece and the lower lines in the objective. The cylinder is mounted upright on a screw device that permits it to be raised or lowered until the object is in focus and until a clear image is formed. When an object is in focus, a real inverted image is formed by the lower lens at a point inside the principal focus of the upper lens. This image serves as an object for the upper lens that produces another image larger still and visible to the eye of the observer. --- permission must be obtained from editor Evan Mattensen to re-publish --- Blue Microscope

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