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Qiulai Technology Co., Ltd
KL12-005-005 K9 Double convex lens
NegotiableUpdate on 03/18
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Overview
Diameter: 5mm; Focal length: 4.5mm
Product Details
overview
Material: Fine annealed K9 optical glass
Design wavelength: 587.6nm
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: 3-4 levels
Inverted edge: 0.2mmX45 °
Coating: see coating list
specifications
| Back focus BFL (mm) | 3.78 |
|---|---|
| Diameter Dia (mm) | 5 |
| Center thickness CT (mm) | 2.65 |
| R1=-R2（mm） | 4.28 |
| Focal length EFL (mm) | 4.5 |
| drawing |
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| Edge thickness ET (mm) | 1 |
