Lenses Because of its special imaging principle, spherical lens can diverge and converge light, and is widely used in imaging, laser, microscopy, biological medicine and other fields.   PWT can provide: ◆Plano convex lens        ◆Plano-concave lens     ◆Double Convex lens ◆Double concave lens   ◆Meniscus Lens             ◆Achromatic Lens   Specification： Material： Dimensional tolerance： Surface flatness： 半径公差 光洁度： 镀膜： H-K9L/Fused Silica/CaF2/Ge/Silicon etc. +0/-0.02mm 1/4λ~1/10λ@632.8nm +/-0.5%~+/-0.1% 10-5 根据客户需求提供镀膜