The invention provides an optical material being excellent in balance between the heat resistance, Abbe number and refractive index by providing a compound represented by the general formula (1):
in the formula, k and n representing integers of 0 to 2 and 0 to 1, respectively, with the proviso that k and n are not simultaneously zero, and k=0 meaning that —(CH
2
)k- is not included in the formula.
该发明提供了一种光学材料,通过提供由通式(1)表示的化合物,在耐热性、阿贝数和折射率之间取得良好的平衡:
在该式中,k和n分别表示0到2和0到1之间的整数,但是k和n不能同时为零,且k=0表示该式中不包括—(
CH2)k-。