China D25.4 mm Ar Coated Cemented Achromatic Triplets Focal Length 20mm Lenses for Telescope/Binocular/Microscope, Find details about China Doublet Lens, Achromatic Lens from D25.4 mm Ar Coated Cemented Achromatic Triplets Focal Length 20mm Lenses for Telescope/Binocular/Microscope
materials | BK7,quartz,or other optical glass |
diameter | 0.5-100mm |
radius | R0.2mm-∞ |
Center thickness tolerance | ±0.005 |
diameter tolerance | ±0.005 |
focal length tolerance | ±1% |
surface accuracy | λ/5@632.8nm |
deviation | 20'' |
surface quality | Better than10/5 |
coating | based on customer's needs |
application area | Medical endoscope, industrial endoscope, industrial lens, etc. |