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Plano-Convex Lens, N-BK7, 15.0 mm Diameter, 21 mm EFL, Uncoated
The KPX361 N-BK7 Plano-Convex Lens is an uncoated, 15.0 mm diameter N-BK7 plano-convex lens with an effective focal length of 21 mm. It has = λ/2 surface irregularity, 60-40 scratch-dig. N-BK7 is an excellent material for most visible and near infrared applications. It is the most common optical glass, and it provides great performance at a good value.
Specifications
- Lens ShapePlano-Convex
- Diameter15.0 mm
- Lens MaterialN-BK7
- Antireflection CoatingUncoated
- Surface Quality60-40 scratch-dig
- F/#1.4
- 21.0 mm
- 17.70 mm
- 10.893 mm
- 2.0 mm
- 5.00 mm
- Principal Plane 2 (P<sub>2</sub>)-3.30 mm
- Centration≤3 arc min
- Clear Aperture≥central 90% of diameter
- Cleaning