Ray transfer matrix analysis: Difference between revisions

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| Thin lens
| align="center" | <math> \begin{pmatrix} 1 & 0 \\ -\frac{1}{f} \\ 0 & 1 \end{pmatrix} </math>
| ''f'' = focal length of lens where ''f'' > 0 for convex/positive (converging) lens.
Only valid if the focal length is much greater than the thickness of the lens.