eo_logo
 
Product added to cart
All Products / Laser Optics / Laser Windows / Laser Line Windows / λ/4 N-BK7 Laser Line Windows
See all 70 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

40mm Diameter, 532nm V-Coat, λ/4 N-BK7 Window

See More by SCHOTT Optical Components

×
Stock #49-133 12 In Stock
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
€61,29 €122,57
Volume Pricing
Qty 1-5 €122,57   €61,29 each
Qty 6-25 €97,85   €48,93 each
Qty 26-49 €91,67   €45,84 each
Need More? Request Quote
Prices shown are exclusive of VAT/local taxes
Product Downloads

Specifications

General

Type:
Laser Line Window

Physical & Mechanical Properties

Clear Aperture CA (mm):
36.00
Diameter (mm):
40.00 +0.00/-0.25
Thickness (mm):
4.00 ±0.20
Parallelism (arcmin):
≤1
Bevel:
Protective as needed
Clear Aperture (%):
90
Edges:
Fine Ground
Poisson's Ratio:
0.21
Young's Modulus (GPa):
82
Knoop Hardness (kg/mm2):
610.00

Optical Properties

Coating:
Laser V-Coat (532nm)
Design Wavelength DWL (nm):
532
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Index of Refraction (nd):
1.516
Surface Quality:
60-40
Abbe Number (vd):
64.17
Coating Specification:
Rabs <0.25% @ 532nm
Surface Flatness (P-V):
λ/4

Material Properties

Density (g/cm3):
2.51
Coefficient of Thermal Expansion CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)

Regulatory Compliance

RoHS 2015:
Compliant
×
Certificate of Conformance:
View
×
Reach 235:
Compliant
×

Product Details

  • <0.25% Reflection at Design Wavelength
  • Coatings Available for HeNe, Diode, and Nd:YAG Laser Sources
  • Precision N-BK7 Substrate
  • Also Available Uncoated, MgF2 Coated and VIS 0° Coated

TECHSPEC® λ/4 N-BK7 Laser Line Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Anti-reflection coatings provide <0.25% reflection at the coating's design wavelengths.

Laser Optics

Technical Information

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Compatible Mounts