optical path difference

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optical path difference

optics

Also known as: OPD

Learn about this topic in these articles:

light waves and lenses

In optics: Seidel sums
…is generally called OPD, meaning optical path difference. It can be shown that OPD is related to x₀ and y₀ by five constants S₁ through S₅, and the quantity h′_o,Each of these five terms is considered to be a separate “aberration,” the coefficients S₁
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