The two-step copolymerization of diethylene glycol bis(allyl carbonate) (CR-39) with methacrylic ester of fluorine containing alcohol (FMA), i.e., trifluoroethyl methacrylate (3FMA) and 1,1,3-trihydroperfluoropro-pyl methacrylate (4FMA), was carried out to prepare a light-focusing plastic rod. The relations between the preparation conditions and the optical characteristics of the resulting rods were considered in the following terms: (a) diffusibilities of CR-39 and FMA; (b) copolymerization of FMA with CR-39; (c) slower diffusion rate of 4FMA than that of 3FMA due to molecular size effect. Low chromatic aberration and the excellent imaging property of the CR-39-3FMA rod lens are also presented.
© 1981 Optical Society of America
Yasuji Ohtsuka, Toshiko Sugano, and Yukiko Terao, "Studies on the light-focusing plastic rod. 8: Copolymer rod of diethylene glycol bis (allyI carbonate) with methacrylic ester of fluorine containing alcohol," Appl. Opt. 20, 2319-2323 (1981)