| 摘要 |
PROBLEM TO BE SOLVED: To provide a radical curable composition for a wafer level lens allowing for forming a cured material excellent in optical properties and exhibiting quite superior shape holding properties even in a high temperature environment.SOLUTION: A radical curable composition for a wafer level lens of the present invention comprises, as radical curable compounds, a radical curable compound (A) represented by the following Formula (1) and a radical curable compound (B) represented by a fluorene-group-containing diacrylate, a viscosity at 25°C being not more than 3600 mPa s. (In Formula (1), R1 indicates a single bond, a methylene group, a sulfonyl group, a sulfur atom, or an oxygen atom, and R2, R3 are identical or different and indicate hydrogen atoms or methyl groups. X, X' are identical or different and indicate sulfur atoms or oxygen atoms. R, R' are identical or different and indicate alkyl groups having a carbon number of 1 to 5, and n, n' are identical or different and indicate 0 or 1.)SELECTED DRAWING: None |
