W3

Third order wavefront aberration

Eq. (3.21)

w'

Full wavefront aberration taking account of cos n$ term

Eq. (3.192)

w2

Mean of the square of the wavefront aberration

(footnote 8)

(W)2

Square of the mean wavefront aberration

(footnote 8)

Wq

The wavefront aberration associated with Q

Eq. (3.459)

wQ

Average value of the nth power of Wq

Eq. (3.461)

AWq

Root-mean-square (rms) wavefront aberration

(W Q)rms

Eq. (3.470)

w

Angular separation in the image plane of the point Q from Q0 (diffraction theory)

ยง 3.10.3

w

Normalized form of the diffraction angle w

Eq. (3.444)

wo

Radius (angular) of the first dark ring in the Airy disk

Eq. (3.446)

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