1.
Appl Opt
; 45(3): 484-8, 2006 Jan 20.
Article
in English
| MEDLINE
| ID: mdl-16463732
ABSTRACT
Linear astigmatism of a confocal off-axis reflective imaging system when the object plane is tilted and located at a finite distance from the imaging system is derived. We show that linear astigmatism can be eliminated by proper configuration of the parent mirror axes in confocal off-axis two-mirror systems. The tilt angle of the image plane is also derived. The developed theory is verified by ray-tracing analysis of an example system.