| BK7 Negative Meniscus Lens | Download catalog |
| ·BK7 Plano-convex Lens | ·BK7 Bi-convex Lens | ·BK7 Plano-concave Lens |
| ·BK7 Bi-concave Lens | ·BK7 Positive Meniscus Lens | ·BK7 Negative Meniscus Lens |
| BK7 Negative Meniscus Lens |
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 Material:BK7 grade optical glass Design Wavelength:633nm Focal Length Tolerance:+/-1% Diameter Tolerance:+0.0,-0.1mm Center Thickness(Tc):+/-0.1mm Surface Figure:λ/4@632.8nm Scratch/Dig:40-20 Centration:<3arc minutes Clear Aperture:>90% Protective Bevelling Coating:none,A type,B type,C type |
BK7 Negative Meniscus Lens |
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NO.
GLF1822 GLF1510 GLF1547 GLF1097 GLF1774 GLF1015 GLF1544 GLF1988 GLF1141 GLF1764 GLF1736 GLF1829 GLF1338 GLF1269 GLF1129 GLF1115 GLF1089 GLF1591 EFL(mm)
-100.0 -125.0 -150.0 -200.0 -250.0 -300.0 -400.0 -500.0 -1000.0 -100.0 -125.0 -150.0 -200.0 -250.0 -300.0 -400.0 -500.0 -1000.0 Dia(mm)
25.4
25.4 25.4 25.4 25.4 25.4 25.4 25.4 25.4 50.8 50.8 50.8 50.8 50.8 50.8 50.8 50.8 50.8 R1(mm)
100.0 100.0 100.0 100.0 100.0 250.0 250.0 250.0 500.0 200.0 200.0 200.0 200.0 200.0 300.0 300.0 300.0 500.0 R2(mm)
33.7 38.8 43.1 50.2 55.7 95.1 112.5 126.3 253.2 40.6 48.3 55.3 67.4 77.7 101.4 121.5 137.8 252.9 Tc(mm)
3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.5 5.0 5.0 5.0 5.0 5.0 5.0 Te(mm)
4.7 4.3 4.1 3.8 3.7 3.5 3.4 3.3 3.2 12.3 10.6 9.6 8.4 7.7 7.2 6.6 6.3 5.6
BFL(mm)
-99.0 -123.7 -148.5 -198.0 -247.5 -298.8 -398.4 -498.0 -998.0 -99.2 -123.9 -148.7 -198.3 -247.9 -298.3 -397.7 -497.2 -996.7 |
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