BI-PCC-12-18-U, 12mm Plano Concave lens, Uncoated, FL=-18mm
BI-PCC-12-18-V, 12mm Plano Concave lens, VIS Coated, FL=-18mm
BI-PCC-12-24-N1, 12mm Plano Concave lens, N1 Coated, FL=-24mm
BI-PCC-12-24-N2, 12mm Plano Concave lens, N2 Coated, FL=-24mm
BI-PCC-12-24-V, 12mm Plano Concave lens, VIS Coated, FL=-24mm
BI-PCC-12-48-N1, 12mm Plano Concave lens, N1 Coated, FL=-48mm
BI-PCC-12-48-N2, 12mm Plano Concave lens, N2 Coated, FL=-48mm
BI-PCC-12-48-U, 12mm Plano Concave lens, Uncoated, FL=-48mm
BI-PCC-12-24-U: 12mm Plano Concave lens, Uncoated, FL=-24mm.
Plano-concave lenses have one flat and one inward-curved surface and a negative focal length, so they spread a collimated beam. They are used to expand beams and, combined with a positive lens, to shorten an optical system.
Size: 12 mm
Type: Plano Concave
Material: N-BK7
Center Thickness: 3.50 ± 0.05 mm
Edge Thickness: 4.79 mm
Focal Length (EFL): -24 mm
Back Focal Length (BFL): -26.32 mm
Surface Quality: 40-20 (scratch-dig)
Flatness / Irregularity: λ/4 P-V @ 632.8 nm
Coating: Uncoated (transmission 350–2200 nm)
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BI-PCC-12-18-U, 12mm Plano Concave lens, Uncoated, FL=-18mm
BI-PCC-12-18-V, 12mm Plano Concave lens, VIS Coated, FL=-18mm
BI-PCC-12-24-N1, 12mm Plano Concave lens, N1 Coated, FL=-24mm
BI-PCC-12-24-N2, 12mm Plano Concave lens, N2 Coated, FL=-24mm
BI-PCC-12-24-V, 12mm Plano Concave lens, VIS Coated, FL=-24mm
BI-PCC-12-48-N1, 12mm Plano Concave lens, N1 Coated, FL=-48mm
BI-PCC-12-48-N2, 12mm Plano Concave lens, N2 Coated, FL=-48mm
BI-PCC-12-48-U, 12mm Plano Concave lens, Uncoated, FL=-48mm