What is inversion?As in inversion related to microscopes or overall, what is inversion?

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ncchemist | eNotes Employee

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Inversion is the reversal of an image projected by a microscope. Most microscopes used today are compound microscopes, meaning they have more that one lens involved in the magnification process. A light source underneath the sample projects light upward through the sample and into an objective lens.  The objective lens is curved, thus causing the light that passes through it to cross over, thus inverting the image.  The light then passes through the ocular lens, or the lens that you actually look through with your eyes.  Because the ocular lens is usually a simple lens, the inversion remains and you see the image inverted.

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