Optical element, optical instrument, and imaging device

The invention relates to an optical element, an optical instrument, and an imaging apparatus. An optical element includes a transparent substrate and a cured product disposed on the transparent substrate. The cured product contains a (meth) acrylate compound having an alicyclic skeleton. The amount of the (meth) acrylate compound contained in the cured product is 70% by mass or more and 99.5% by mass or less. 本公开涉及一种光学元件、光学仪器和摄像装置。一种光学元件，其包括透明基底和设置在透明基底上的固化产物。所述固化产物包含具有脂环骨架的(甲基)丙烯酸酯化合物。所述固化产物中包含的(甲基)丙烯酸酯化合物的量为70质量％以上且99.5质量％以下。