Bi-convex lens
Tower Optical
Material: BK7, grade A, fine anneal, or K9 substitute | Design Wavelength:
632.8 nm | Diameter Tolerance: 0/-0.10 mm | Focal Length Tolerance: ±1% | Centering: ±3 arcmin | Clear Aperture: 90% of Diameter Surface Quality: 60-40 Scratch-Dig | Bevel: 0.25 mm x 45° | Coating: None
