Plano-Convex Lens, ValuMax, N-BK7, 6.35 mm, 12.7 mm EFL, 400-700 nm

The KPX513-C N-BK7 Plano-Convex Lens is a 400-700 nm anti-reflection coated, 6.35 mm diameter N-BK7 plano-convex lens with an effective focal length of 12.7 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
6.35 mm
Lens Material
N-BK7
Antireflection Coating
400-700 nm
Coating Type
Visible Single-Layer MgF₂
Coating Code
-C
Damage Threshold
7 J/cm², 10 ns pulses, 20 Hz at 532 nm
Surface Quality
60-40 scratch-dig
Surface Accuracy, Irregularity
λ/2
Surface Accuracy, Power
2.5 λ
F/#
2
Effective Focal Length (EFL)
12.7 mm
Back Focal Length (BFL)
10.18 mm
Radius of Curvature (R)
6.560 mm

Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.81 mm
Principal Plane 2 (P2)
-2.51 mm
Design Wavelength
546.1 nm
Centration
≤3 arc min
Chamfers
0-0.50 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
6.35 mm
Lens Material
N-BK7
Antireflection Coating
400-700 nm
Coating Type
Visible Single-Layer MgF₂
Coating Code
-C
Damage Threshold
7 J/cm², 10 ns pulses, 20 Hz at 532 nm
Surface Quality
60-40 scratch-dig
Surface Accuracy, Irregularity
λ/2
Surface Accuracy, Power
2.5 λ
F/#
2
Effective Focal Length (EFL)
12.7 mm
Back Focal Length (BFL)
10.18 mm
Radius of Curvature (R)
6.560 mm

Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.81 mm
Principal Plane 2 (P2)
-2.51 mm
Design Wavelength
546.1 nm
Centration
≤3 arc min
Chamfers
0-0.50 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

3D Product Models

Download CAD Files

Other

KPX513-C RoHS Certificate(697.1 kB, PDF)
MgF₂ Raw Data.xlsx(63.2 kB, XLSX)

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