eo_logo
  • Country/Region
  • cart   
 
See all 70 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

20mm Diameter, 405nm V-Coat, λ/4 N-BK7 Window

×
Stock #64-040
×
Qty 1-5
A$104.00
Qty 6+
A$93.60
Volume Pricing
Request Quote
Bevel:
Protective as needed
Clear Aperture CA (mm):
18.00
Coating:
Laser V-Coat (405nm)
Coating Specification:
Rabs <0.25% @ 405nm
Diameter (mm):
20.00 +0.00/-0.25
Thickness (mm):
3.00 ±0.20
Design Wavelength DWL (nm):
405
Parallelism (arcmin):
≤1
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Flatness:
λ/4
Surface Quality:
60-40
Type:
Laser Line Window
Young's Modulus (GPa):
82
Coefficient of Thermal Expansion CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)
Density (g/cm3):
2.51
Index of Refraction nd:
1.516
Poisson's Ratio:
0.206
Abbe Number (vd):
64.17
Edges:
Fine Ground

Regulatory Compliance

RoHS 2015:
Reach 219:

Product Family Description

  • <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

×