Warranty: 3 months
Customized support: OEM
Place of Origin: Jilin, China
Brand Name: YT
Model Number: YT-Coating lens
Use: Optical
Structure: Singlet
Shape: Spherical
Product name: Coating plano convex / concave lens
Material: K9 Bk7 glass, fused silica
Diameter: 30mm, 40mm,50mm,60mm.70mm
Focal length: as requirements
Surface quality: 40/20
Flatness: L/4
Centration: 3 arc minutes;30 arcsec.
Tolerance: +-0.1mm
Chamfer: 0.25mm*45 degree
Coating: as request