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KL13-016-160 Plano-Concave Lenses

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KL13-020-050 Plano-Concave Lenses

Diameter:20mm; focallength:-50mm

Delivery Time : 2-3 weeks
US$16.88
In stock
SKU
KL134

Material:K9 Precision Annealedoptical glass

Design Wavelength:587.6nm

Diameter Tolerance:+0.0/-0.1mm

Center Thickness Tolerance:±0.2mm

Surace Figure:λ/4 @632.8nm

focallength Tolerance:±2%

Centering Tolerance:3 arc minutes

Surface Quality:3~4 level

Bevel:0.2mmX45°

Coatings:Please see the coating list

More Information
Drawing
Diameter (mm) 20
Focal length (mm) -50
Back Focus BFL (mm) -51.38
Radius R1(mm) -25.84
Center Thickness CT (mm) 2.1
Edge Thickness ET(mm) 4.11
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