Purchase Qty. Reference FOB Price
1-99 Pieces US$35.00
100+ Pieces US$3.60
Product Description
Product Description Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.They are available in either plano concave or plano convex configurations. Plano-Concave Cylindrical lenses have a negative focal ...