1,Material: optical glass 2,Surface: spherical 3,Specifications: 30-300mm 4,Structure: plano-concave, double concave

1, Material: optical glass, such as BK7(K9), ZF, ZK...

2, Diameter tolerance: +/-0.1mm

3, Surface quality: 80-50, 60-40

4, Coating: MC AR

5, Production procedure

6, Applications