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N-BK7 Bi-Convex
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12.7 mm Dia x 20.0 mm FL, Bi-Convex, Uncoated
12.7 mm Dia x 20.0 mm FL, Bi-Convex, Uncoated
Sku:
01BCX127-20-1
$12.00
Specifications of 12.7 mm Dia x 20.0 mm FL, Bi-Convex, Uncoated
Diameter (mm) :
12.70 mm
Focal Length (mm) :
20.00 mm
R :
19.92 mm
Tc :
3.88 mm
Te :
1.80 mm
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BK7 Bi-Convex Lenses
Bi-Convex
Material
N-BK7
Design Wavelength
633 nm (n=1.515)
Surface Quality
40-20 scratch-Dig
Power/Irregularity
S1, 1.5?/0.25?
S2 (plano), 0.5?
Centration
? 3 arc min
Clear Aperture
>90%
Chamfer
0.20 Max, face width at 45 deg for all sharp edges
Dia tol
+0/-0.1
Thick tol
± 0.1
FL tol
± 1%
BBAR coatings
A coating
Ravg<0.5% @350-700 nm
B coating
Ravg<0.5% @650-1050 nm
C coating
Ravg<0.5% @1050-1620 nm
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