BI-BCV-18-27-N2, 18mm Bi-Convex lens, N2 Coated, FL=27mm
BI-BCV-18-27-U, 18mm Bi-Convex lens, Uncoated, FL=27mm
BI-BCV-18-27-V, 18mm Bi-Convex lens, VIS Coated, FL=27mm
BI-BCV-18-36-N1, 18mm Bi-Convex lens, N1 Coated, FL=36mm
BI-BCV-18-36-U, 18mm Bi-Convex lens, Uncoated, FL=36mm
BI-BCV-18-36-V, 18mm Bi-Convex lens, VIS Coated, FL=36mm
BI-BCV-20-20-N1, 20mm Bi-Convex lens, N1 Coated, FL=20mm
BI-BCV-20-20-N2, 20mm Bi-Convex lens, N2 Coated, FL=20mm
BI-BCV-18-36-N2: 18mm Bi-Convex lens, N2 Coated, FL=36mm.
Bi-convex lenses have two outward-curved surfaces and a positive focal length. They work best close to 1:1 imaging, where object and image are at similar distances from the lens.
Size: 18 mm
Type: Bi-Convex
Material: N-BK7
Center Thickness: 4.80 ± 0.10 mm
Edge Thickness: 2.55 mm
Focal Length (EFL): 36 mm
Back Focal Length (BFL): 34.59 mm
Surface Quality: 40-20 (scratch-dig)
Flatness / Irregularity: λ/4 P-V @ 632.8 nm
Coating: N2 AR coating, 750–1550 nm, Ravg ≤ 0.7%
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BI-BCV-18-27-N2, 18mm Bi-Convex lens, N2 Coated, FL=27mm
BI-BCV-18-27-U, 18mm Bi-Convex lens, Uncoated, FL=27mm
BI-BCV-18-27-V, 18mm Bi-Convex lens, VIS Coated, FL=27mm
BI-BCV-18-36-N1, 18mm Bi-Convex lens, N1 Coated, FL=36mm
BI-BCV-18-36-U, 18mm Bi-Convex lens, Uncoated, FL=36mm
BI-BCV-18-36-V, 18mm Bi-Convex lens, VIS Coated, FL=36mm
BI-BCV-20-20-N1, 20mm Bi-Convex lens, N1 Coated, FL=20mm
BI-BCV-20-20-N2, 20mm Bi-Convex lens, N2 Coated, FL=20mm