Method for improving the imaging properties of at least two...

Details Method for improving the imaging properties of at least two... Method for improving the imaging properties of at least two...

2006-04-11

2006-04-11

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000, C359S811000

Reexamination Certificate

active

07027237

ABSTRACT:
A method for improving imaging properties of two or more optical elements comprises the step of determining for at least one of the two optical elements a polarization-dependent perturbation. In a further step a polarization-independent perturbation is determined for at least one of the two optical elements. Then a target position for the at least one movable optical element is calculated such that, in the target position, the total perturbation of the at least two optical elements which is made up of the polarization-dependent perturbations and polarization-independent perturbations of the two optical elements, is minimized. Finally the at least one movable optical element is moved the to the calculated target position.

REFERENCES:
patent: 2003/0128349 (2003-07-01), Unno
patent: 2003/0168597 (2003-09-01), Webb et al.
patent: 1 063 684 (2000-12-01), None
U.S. Appl. No. 10/709,098, Apr. 13, 2004, Kurz et al.

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