We are veteran manufacturer and supplier of all dependable range of Economical Standard Biconcave Lens in New Delhi, Delhi, India. Bi-concave lenses have a negative focal length and are best used to diverge a converging beam. Bi-concave lenses can diverge a collimated beam to a virtual focus and are commonly used in Galilean-type beam expanders.
* Diameter 25 mm to 150 mm
Last updated on : 19 March 2018