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Hoofbeat
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#1
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#1
How does diffraction limit the image formed by a lens?

Thanks

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anchemis
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err.... because the diffraction is limited by the quality of the glass on the lens... the energy loss caused by diffraction is great when the light passes through the glass....

hint... do the experiement by shining a thin beam of light through a lens in the dark... you see that the lens border glows due to the scattering of light creating energy loss...
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elpaw
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look up the rayleigh criterion.

you're effectively shining light through a hole with the same diameter as the lens.
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