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The Simple Microscope

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-492

2025-12-23

726

 is merely a convex lens, usually of short focal length. The object is placed between the principal focus and the lens, and the image is virtual, upright, and larger than the object. If the object AB (Fig. 1) is placed as shown, the position of the image of the point A is determined by the intersection, at A', of aF and AO. B' is found in a similar way, and the positions of these two points determine the position of the whole image. The distance from the eye to the image is the distance of distinct vision and varies with different eyes.