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FLAT CONCAVE LENS

$ 30.10 USD$ 28.60 USDSave 5%

SKU: AG-ME-K0373 Category:

Description

Outer diameter (¦Õmm): 20
Focus distance (mm): -80
Bag focus (mm): -80.67
Medium thickness (mm): 1
Koba meat (mm): 2.18
Material: BK-7
Design wavelength: 587.6nm
Refractive index: 1.51680/nd
Chamfer (45¡ã): 0.2 – 0.5mm
Tolerance range
Outer diameter: ¦Õ+0/-0.1mm
Center thickness: ¡À0.2mm
Focal length: ¡À2£¥
Surface quality: MIL60-40
Eccentricity: within 3 minutes (3′)