Purchase Qty. Reference FOB Price
5-99 Pieces US$59.00
100-499 Pieces US$53.00
500+ Pieces US$43.00
Product Description
Product Description The plano-concave lens converts a beam of parallel light into divergent light rays, and the divergent light rays are reversely focused on the virtual focal point of the plano-concave lens. The focal length is negative, and one side is flat and the other is concave. Plano-concave ...