Optical lens 1) Material: BK7, B270 2) Spherical lens, cylinder lens, window lens, prism lens 3) surface quality: 10/20

Optical lens1) Material: BK7, B2702) Spherical lens,  cylinder lens, window lens, prism lens3) Surface quality: 10/20

4) Diameter: 2mm to 20mm

5) Coating is available

optical lens