Tag Archive for: lens
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Lenses and Pinholes: What Does “In Focus” Mean?
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In introductory physics, the optics unit often teaches about virtual and real images, focal lengths, indexes of refraction, etc. Some questions that are…
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The Diffraction Limited Spot Size with Perfect Focusing
Purpose:
The purpose of this Insights article is to give the reader a brief introduction to the principles behind diffraction-limited focusing. The…