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N-BK7 Bi-Convex
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25.4 mm Dia x 75.0 mm FL, Bi-Convex, B coating
25.4 mm Dia x 75.0 mm FL, Bi-Convex, B coating
Sku:
01BCX254-75-B
$19.00
Specifications of 25.4 mm Dia x 75.0 mm FL, Bi-Convex, B coating
Diameter (mm) :
25.40 mm
Focal Length (mm) :
75.00 mm
R :
76.56 mm
Tc :
4.12 mm
Te :
2.00 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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