Min. Order Reference FOB Price
10 Pieces US$1.00-10.00 / Piece
Product Description
Wholesale Spherical K9 glass positive meniscus lens Suppliers Product Description Meniscus lens Meniscus lens is a lens which has two spherical curved surfaces, convex on one side and concave on the other side. It is thicker at the center than at the edges. The lens provides a smaller beam ...