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Optics Letters

Optics Letters


  • Vol. 36, Iss. 9 — May. 1, 2011
  • pp: 1701–1703

Two Lagrange-like optical invariants and some applications

Fabio Corrente and Pasquale Onorato  »View Author Affiliations

Optics Letters, Vol. 36, Issue 9, pp. 1701-1703 (2011)

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Geometric optics can be completely derived from Fermat’s principle, as classical mechanics can be obtained by the application of the Hamilton principle. In Lagrangian optics, for optical systems with rotational symmetry, is known the invariant L 3 , the Lagrange optical invariant. For systems built only with spherical lenses, we demonstrate there are two other optical invariants, L 1 and L 2 , analogous to L 3 . A proof based on Snell’s law, the Weierstrass–Erdman jump condition, and the expression of the ray between two optical surfaces in the Hamiltonian formalism is reported. The presence of a conserved vector, L, allows us to write the equation of an emerging ray without any approximation.

© 2011 Optical Society of America

OCIS Codes
(000.3860) General : Mathematical methods in physics
(080.0080) Geometric optics : Geometric optics
(220.3630) Optical design and fabrication : Lenses

Original Manuscript: February 2, 2011
Manuscript Accepted: March 22, 2011
Published: April 29, 2011

Fabio Corrente and Pasquale Onorato, "Two Lagrange-like optical invariants and some applications," Opt. Lett. 36, 1701-1703 (2011)

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