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KL21-004-015 UV fused silica plano convex lens
Diameter: 4mm; Focal length: 15mm
Product details
summary
Material: UV fused silica
Design wavelength: 587.6nm; n=1.45848
Diameter error:+ 0.0 /-0.1mm
Center thickness error: ±0.2mm
Irregular surface shape: wavelength/4 @ 632.8nm
Focal length error (EFL): ± 2%
Lens centering error: 3 points
Surface smoothness: 2-3 levels
Inverted edge: 0.2mmX45°
Coating: see coating list
Specifications
| Back focus BFL (mm) | 13.767 |
|---|---|
| Diameter Dia (mm) | 4 |
| Center thickness CT (mm) | 1.8 |
| R1=-R2（mm） | 6.88 |
| Focal length EFL (mm) | 15 |
| drawing |
|
| Edge thickness ET (mm) | 1.5 |
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