Menu
Menu
Your Cart

N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm

N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm
N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm
N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm
N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm
N-BK7 Bi-Concave Lens, 25.4 mm Diameter, -75 mm EFL, 1000-1550nm
  • Brand:
  • Product Code: KBC040AR.18
$59.00
Ex Tax: $59.00

Available Options

Buy Now Request Quote
Add to Wish List Compare this Product

The KBC040AR.18 Bi-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 25.4 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -75 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-concave lenses are manufactured from fine annealed optical glass and are polished to tight tolerances using master test plates to ensure minimum wavefront distortion.

feature
Antireflection Coating 1000-1550 nm
Center Thickness 2.5 mm
Center Thickness Tolerance ±0.1 mm
Centration ≤3 arc min
Chamfers 0–0.8 mm face width
Chamfers Angle/Tolerance 45° ±15°, typical
Cleaning See How to Clean Optics
Clear Aperture ≥central 90% of diameter
Coating Code AR.18
Coating Type IR Multilayer
Damage Threshold 7.5 J/cm2, 10 ns pulses, 20 Hz at 1064 nm
Diameter 25.4 mm
Diameter Tolerance +0/-0.1 mm
Edge Thickness 4.19 mm
Effective Focal Length -75 mm
F/# -2.9
Focal Length Tolerance ±1 %
Focal Length, Back -75.82 mm
Lens Material N-BK7
Lens Shape Bi-Concave
Principal Plane 1 0.82 mm
Principal Plane 2 -0.82 mm
Radius of Curvature -77.943 mm
Surface Accuracy, Irregularity λ/4
Surface Accuracy, Power 1.5 λ
Surface Flatness λ/4
Surface Quality 40-20 scratch-dig

Write a review

Tags: N-BK7 Bi-Concave Lens , 25.4 mm Diameter , -75 mm EFL , 1000-1550nm , KBC040AR.18 , N-BK7 Bi-Concave Lenses