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In bright light, the human eye's pupil diameter is about 2 mm. If diffraction were the limiting factor, what's the eye's minimum. angular resolution under these conditions, assuming 550-nm. light?

In bright light, the human eye's pupil diameter is about 2 mm. If diffraction were the limiting factor, what's the eye's minimum. angular resolution under these conditions, assuming 550-nm. light?

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In bright light, the human eye's pupil diameter is about 2 mm. If diffraction were the limiting factor, what's the eye's minimum angular resolution under these conditions, assuming 550-nm light?
Transcribed Image Text:In bright light, the human eye's pupil diameter is about 2 mm. If diffraction were the limiting factor, what's the eye's minimum angular resolution under these conditions, assuming 550-nm light?
Expert Solution
Concept and Principle:
  • The diffraction limit is the restriction on imaging distant or small objects. The resolving power of an optical instrument is its ability to image small details of an image clearly.

 

  • When there is a circular aperture the minimum angular separation that can be resolved will be given by,

θmin=(1.22)λD

Here θmin is the minimum angular separation, λ is the wavelength, and D is the aperture. This condition is known as the Rayleigh criterion.

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