Plano-Convex Lens, N-BK7, 12.7 mm Diameter, 19.0 mm EFL, Uncoated

The KPX040 N-BK7 Precision Plano-Convex Lens is an uncoated, 1/2 inch (12.7 mm) diameter N-BK7 plano-convex lens with an effective focal length of 19.0 mm. It has = λ/4 surface irregularity, 40-20 scratch-dig, and is designed to meet the demanding requirements of laser electro-optic applications. It is manufactured from fine annealed optical glass and polished to tight tolerances using master test plates ensures minimum wavefront distortion. Tight surface quality tolerances minimize scatter and unwanted diffraction effects. 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
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4
Surface Accuracy, Power
1.5 λ
F/#
1.5
Effective Focal Length (EFL)
19.0 mm
Back Focal Length (BFL)
15.48 mm
Radius of Curvature (R)
9.819 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
5.330 mm

Principal Plane 2 (P2)
-3.51 mm
Design Wavelength
589 nm
Centration
≤3 arc min
Chamfers
0–0.8 mm face width
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±1 %
Diameter Tolerance
+0/-0.1 mm
Center Thickness Tolerance
±0.1 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
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4
Surface Accuracy, Power
1.5 λ
F/#
1.5
Effective Focal Length (EFL)
19.0 mm
Back Focal Length (BFL)
15.48 mm
Radius of Curvature (R)
9.819 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
5.330 mm

Principal Plane 2 (P2)
-3.51 mm
Design Wavelength
589 nm
Centration
≤3 arc min
Chamfers
0–0.8 mm face width
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±1 %
Diameter Tolerance
+0/-0.1 mm
Center Thickness Tolerance
±0.1 mm
Clear Aperture
≥central 90% of diameter
Cleaning
See How to Clean Optics

Resources & Downloads

Related Products

Similar

Description	Compatibility	Price
KPX040AR.16Plano-Convex Lens, N-BK7, 12.7 mm Diameter, 19.0 mm EFL, 650-1000 nm	UNIVERSAL	$53
SPX012AR.14Plano-Convex Lens, Fused Silica, 12.7 mm, 19.0 mm EFL, 430-700 nm	UNIVERSAL	$176
KPX016AR.14Plano-Convex Lens, N-BK7, 6.35 mm Diameter, 19.0 mm EFL, 430-700 nm	UNIVERSAL	$41
KPX040AR.33Plano-Convex Lens, N-BK7, 12.7 mm Diameter, 19.0 mm EFL, 1064 nm	UNIVERSAL	$63

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