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Optical Components from Tower Optical

Do you have special requirements or would like individual consultation? Please contact our engineers at:

Sales
Phone: +49 89 321412-43
sales[at]imm-photonics.de


Custom and Cylindrical Lenses

Material BK7 or equal
Sizes 1 mm to 350 mm
Diameter tolerance ± 0.02 mm
Decentration (wedge) ± 10 second
Irregularity 0.05 λ @ 632.8 nm
Spherical error 0.10 λ @ 632.8 nm
Surface quality 10/5 scratch/dig
Thickness tolerance ± 0.01 mm

Ball and Drum Lenses

[] Material BK7 grade A or equivalent or UV fused silica
Sizes / diameter 1 mm to 10 mm
Diameter tolerance ± 0.01 mm
Sphericity ± 0.003 mm
Surface quality 40/20 scratch/dig
Coating None

Plano Convex Lenses, Plano Concave Lenses, Bi Convex Lenses

Applications: telescopes, collimators, optical transceivers, magnifiers, radiometers and condensers

Specifications Plano Convex Lenses Plano Concave Lenses Bi Convex Lenses
Focal length 10 mm to 1000 mm -18 mm to -150 mm 10 mm to 1000 mm
Diameter 6 mm to 75 mm 6 mm to 50,8 mm 6 mm to 50,8 mm
Material BK7 grade A
Design wavelength n 1.5150 @ 633 nm  
Diameter tolerance + 0 mm / - 0.10 mm  
Focal length tolerance ± 1%  
Centering ± 3 arc min
Clear aperture 90 % diameter
Surface quality 60/40 scratch/dig  
Bevel 0.25 mm x 45° 
Coating None
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