Min. Order Reference FOB Price
1 Piece US$5.00-99.00 / Piece
Product Description
Product Description Plano Concave Lenses Microscope Lens Telescope Lens Optical Research Experiment D39mm F-80.4mm A plano-concave lens is a lens that has a flat surface on one side and a concave surface on the other side. The focal length of a plane-concave lens is negative, allowing the beam ...