Three surface freeform aplanatic systems


We address, in detail, the system of differential equations determining a freeform aplanatic system with illustrative examples. We also demonstrate how two optical surfaces, in general, are insufficient in achieving freeform aplanatism through the use of integrability condition for a given reflective freeform aplanatic configuration. This result also alludes to the fact that a freeform aplanatic system fulfills a broader set of conditions than its rotationally symmetric counterpart. We also elaborate on the above results with two illustrative examples,  a semi aplanatic system which satisfies the generalized sine condition in only one direction and  a fully freeform aplanatic reflective system.

Publication type: 
JRC-SCI Magazine
Published in: 
Optics Express, Vol. 25 ,Issue 10, pp. 10710-10715
Publication date: 
May 2017
CeDInt Authors: