Earlier as an example we used d c Î»Ì 0 /θ s to calculate the approximate lateral

Earlier as an example we used d_c‰ˆ λ̅₀/θ_sto calculate the approximate lateral coherence distance for sunlight. Now find that same quantity, the diameter of the coherence area for a circular thermal source, using the more conservative notions that lead to Eq. (12.31).

Transcribed Image Text:

RAo h = 0.32 D (12.31)