Plano-Convex Lens, N-BK7, 25.4 mm Diameter, 50.2 mm EFL, 400-700 nm

MgF2 Visible N-BK7 Plano-Convex Lenses

The KPX082-C N-BK7 Precision Plano-Convex Lens is a 400 to 700 nm anti-reflection coated, 1 inch (25.4 mm) diameter, N-BK7 plano-convex lens with an effective focal length of 50.2 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
25.4 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
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4
Surface Accuracy, Power
1.5 λ
F/#
1.9
Effective Focal Length (EFL)
50.2 mm
Back Focal Length (BFL)
46.03 mm
Radius of Curvature (R)
25.943 mm

Edge Thickness (T<sub>e</sub>)
3.0 mm
Center Thickness (T<sub>c</sub>)
6.321 mm
Principal Plane 2 (P<sub>2</sub>)
-4.16 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
25.4 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
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4
Surface Accuracy, Power
1.5 λ
F/#
1.9
Effective Focal Length (EFL)
50.2 mm
Back Focal Length (BFL)
46.03 mm
Radius of Curvature (R)
25.943 mm

Edge Thickness (T<sub>e</sub>)
3.0 mm
Center Thickness (T<sub>c</sub>)
6.321 mm
Principal Plane 2 (P<sub>2</sub>)
-4.16 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

Software

KPX082_ZEMAX(974 B, ZIP)
KPX082-C Zemax File(5.3 kB, ZMX)

2D Product Drawings

PLANOCO1 VEX-S(89.6 kB, PDF)

Other

KPX082-C RoHS Certificate(704.7 kB, PDF)
MgF₂ Raw Data.xlsx(63.2 kB, XLSX)

Related Products

Similar

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		KBX052Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 50.2 mm EFL, Uncoated	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$44
		SPX016Plano-Convex Lens, Fused Silica, 25.4 mm, 50.2 mm EFL, Uncoated	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$186
		SPC034Plano-Concave Lens, Fused Silica, 25.4 mm, -50 mm EFL, Uncoated	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$133
		KBC043Bi-Concave Lens, N-BK7, 25.4 mm Diameter, -50 mm EFL, Uncoated	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$45
		SBC034Bi-Concave Lens, Fused Silica, 25.4 mm, -50 mm EFL, Uncoated	UNIVERSAL		Contact Us	$141

Compatible

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		VLH-1AV-Groove Lens Holder, 0.25 to 1.25 in. Diameter Lenses	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$164
		LP-1APrecision Lens Positioner, 1.0 in., 100 TPI XYθXθY, 80 TPI Z	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,043
		AC-1AVariable Size Lens Mount, 5.0-46.2 mm, Thumbscrew Support Arms	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$59
		LCM-1Lens Mount, Self-Centering, 0.125-1.063 in. Diameter Lenses	IMPERIAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$288