Everything about David L Fried totally explained
David L. Fried is a
scientist, best known for his contributions to
optics. Fried described what has come to be known as
Fried's seeing diameter, or
r0 (usually pronounced r-naught). The seeing diameter is effectively a limiting aperture due to atmospheric turbulence, and is found either empirically or statistically. The seeing diameter limits optical resolution. Note that it's a diameter, not a radius, even though r is used as the variable.
Typical values for Fried's seeing diameter in the visible spectrum may range from less than 1 cm (you can detect turbulence with your eye) to 20 cm on
Mt. Haleakala.
Honors
1993 - David L. Fried, Optical Sciences Company, SPIE Technology Achievement Award.
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