双凹透镜
双凹透镜双凹透镜有两个向内的,相同的曲面构成并且有一个负焦距,它们被用作成缩小的像或是光线发散,所有直径都是以毫米为单位。技术数据订购信息标题产品号6mm Dia. x -6mm FL, Uncoated, Double-Concave Lens#32-9866mm Dia. x -9mm FL, Uncoated, Double-Concave Lens#48-9326mm Dia. x -12mm FL, Uncoated, Double-Concave Lens#48-6819mm Dia. x -9mm FL, Uncoated, Double-Concave Lens#48-3369mm Dia. x -12mm FL, Uncoated, Double-Concave Lens#48-9339mm Dia. x -18mm FL, Uncoated, Double-Concave Lens#48-68212mm Dia. x -12mm FL, Uncoated, Double-Concave Lens#32-98812mm Dia. x -18mm FL, Uncoated, Double-Concave Lens#48-93412mm Dia. x -24mm FL, Uncoated, Double-Concave Lens#48-68320mm Dia. x -20mm FL, Uncoated, Double-Concave Lens#32-99025mm Dia. x -25mm FL, Uncoated, Double-Concave Lens#32-99225mm Dia. x -50mm FL, Uncoated, Double-Concave Lens#32-99625mm Dia. x -100mm FL, Uncoated, Double-Concave Lens#32-994