| abstract |
PROBLEM TO BE SOLVED: To provide an optical element in which a response speed is not lowered and reversible repetitive characteristics are not deteriorated. A polymer gel comprising a pair of opposing substrates, a polymer gel sandwiched between the pair of substrates and having a property of reversibly changing the volume by absorbing and releasing the liquid by stimulation, and the liquid. An optical element having a composition layer, wherein at least one of the pair of substrates has a partition that divides the polymer gel composition layer. [Selection figure] None |