Light-focusing plastic rod with low chromatic aberration

Abstract

Chromatic aberration of the light-focusing plastic rod (LFR) prepared by the two-step copolymerization technique of a M1-M2 monomer pair is discussed theoretically. It is found that the chromatic aberration depends on the respective optical properties of the M1 polymer and M2 polymer alone, and that the selection of a M1-M2 monomer pair is the most important determinant for low chromatic aberration. The requisites for low chromatic aberration are shown. Furthermore, we prepared a LFR with low chromatic aberration by using diethylene glycol bis (allyl carbonate) as M1 and 1,1,3-trihydroperfluoropropyl methacrylate or 1,1,5-trihydroperfluoropentyl methacrylate as M2; the chromatic aberration parameter is in good agreement with the theoretical value.