Selenium-containing transparent optical material

摘要

PCT No. PCT/JP98/00714 Sec. 371 Date Oct. 19, 1998 Sec. 102(e) Date Oct. 19, 1998 PCT Filed Feb. 23, 1998 PCT Pub. No. WO98/37117 PCT Pub. Date Aug. 27, 1998A transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: wherein symbols are as defined in the specification.