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Positive Meniscus Lenses
These lenses may be used to increase the numerical aperture of a positive lens assembly, without an undue increase in the aberrations.
 

    Specifications

 MaterialBK7 grade A optical glass
 Design Wavelength546.1nm
 Design Index1.5183+/-0.0005
 Diameter Tolerance+0.0/-0.15mm
 Paraxial Focal Length+/-2%
 Centration3 arc minutes
 Clear Aperture>80%
 Surface Figure1/4 wave @632.8nm
 Surface Quality60-40 scratch and dig
 Bevel0.25X45 degree
 CoatingNone


 
China Optics Net
    Positive Meniscus Lenses
Product No.F(mm)Dia.(mm)R1(mm)R2(mm)Tc(mm)Te(mm)Fb(mm)Add
100050100.025.433.7290.004.02.597.5
100051150.025.442.5290.004.03.0146.3
100052200.025.449.0390.003.52.8197.0
100053300.025.494.08235.003.53.0296.3
100054350.025.4102.90235.003.53.1346.00
100055400.025.4110.72235.003.53.1395.8
100056500.025.4123.90235.003.53.2495.4
100057600.025.4204.95600.003.53.2595.3
1000581000.025.4278.34600.003.53.3993.7
1000592000.025.4380.54600.003.53.41990.2
1000604000.025.4466.12600.003.53.53984.5
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