Plano-Convex Lens, ValuMax, N-BK7, 12.7 mm, 62.9 mm EFL, Uncoated

The KPX552 N-BK7 Plano-Convex Lens is an uncoated, 12.7 mm diameter N-BK7 plano-convex lens with an effective focal length of 62.9 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

Technical Specs

Lens Shape
Plano-Convex
Diameter
12.7 mm
Lens Material
N-BK7
Antireflection Coating
Uncoated
Surface Quality
60-40 scratch-dig
Surface Accuracy, Irregularity
λ/2
Surface Accuracy, Power
2.5 λ
F/#
4.9
Effective Focal Length (EFL)
62.9 mm
Back Focal Length (BFL)
60.50 mm
Radius of Curvature (R)
32.500 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.62 mm

Principal Plane 2 (P2)
-2.39 mm
Design Wavelength
546.1 nm
Centration
≤3 arc min
Chamfers
0.25-0.75 mm
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±2 %
Diameter Tolerance
+0/-0.15 mm
Center Thickness Tolerance
±0.2 mm
Clear Aperture
≥central 90% of diameter
Cleaning
See How to Clean Optics

Lens Shape
Plano-Convex
Diameter
12.7 mm
Lens Material
N-BK7
Antireflection Coating
Uncoated
Surface Quality
60-40 scratch-dig
Surface Accuracy, Irregularity
λ/2
Surface Accuracy, Power
2.5 λ
F/#
4.9
Effective Focal Length (EFL)
62.9 mm
Back Focal Length (BFL)
60.50 mm
Radius of Curvature (R)
32.500 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.62 mm

Principal Plane 2 (P2)
-2.39 mm
Design Wavelength
546.1 nm
Centration
≤3 arc min
Chamfers
0.25-0.75 mm
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±2 %
Diameter Tolerance
+0/-0.15 mm
Center Thickness Tolerance
±0.2 mm
Clear Aperture
≥central 90% of diameter
Cleaning
See How to Clean Optics

Resources & Downloads

Related Products

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