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zernike fringe/standard coefficient

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Celeste Lee

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Aug 11, 2003, 2:47:25 AM8/11/03
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Hi All,

Consider myself new in optics, may I understand what are zernike fringe or
standard coefficient?

Thank you.

Rgds...
Celeste


Repeating Decimal

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Aug 11, 2003, 1:59:47 PM8/11/03
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in article 10605844...@cswreg.cos.agilent.com, Celeste Lee at
fo...@pd.jaring.my wrote on 8/10/03 11:47 PM:

The term *fringe* is probably improperly used. There is or was a program
named FRINGE that analyzed fringes from an interferometer and calculated
Zernike coefficients.

An arbitrary function defined over a circle can be expanded into a sum of
orthogonal functions in the similar fashion to how a periodic function can
be expanded into a sum of sines and cosines. Certain coefficients describe
well known properties. Some are tilt, focus, spherical aberration and higher
order terms. The higher order terms are aberrations that can be important
but are usually given their own names.

Bill

Acme Optics

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Aug 11, 2003, 2:16:25 PM8/11/03
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Related to the FRINGE program were 37 Zernike polynomial terms, which
in CODE-V were, and may still be, refered to as "Fringe Zernike's"
These are also available in Roadrunner www.acmeoptics.com and the
functional forms are documented in the Roadrunner manual.

Acme Optics

Celeste Lee

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Aug 11, 2003, 9:31:29 PM8/11/03
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Thank you people :)

"Celeste Lee" <fo...@pd.jaring.my> wrote in message
news:10605844...@cswreg.cos.agilent.com...

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