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Products / Optics / Windows and Diffusers / Visible Windows / Hydrophobic Windows
See all 16 Products in Family

25mm Diameter, Indoor, Hydrophobic Window

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Stock #36-072
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Qty 1-5
C$103.28
Qty 6+
C$91.13
Volume Pricing
Request Quote
Abbe Number (vd):
65.41
Bevel:
Protective as needed
Clear Aperture (%):
90
Clear Aperture CA (mm):
22.50
Diameter (mm):
25.00 +0.00/-0.25
Thickness (mm):
1.10 ±0.1
Coating:
Hydrophobic (425-675nm)
Coating Specification:
Ravg <0.5% @ 425 - 675nm
Coefficient of Thermal Expansion CTE (10-6/°C):
3.25
Contact Angle (°):
Water: 90 - 105
Oil: 30 - 40
Density (g/cm3):
2.23
Edges:
Fine Ground
Index of Refraction nd:
1.472
Knoop Hardness (kg/mm2):
480
Poisson's Ratio:
0.2
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
BOROFLOAT®
Surface Quality:
80-50
Type:
Protective Window
Wavelength Range (nm):
425 - 675
Young's Modulus (GPa):
64
Note:
Indoor

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 223:
Compliant
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Product Family Description

  • Oil and Water Repellent Coating
  • Ideal for Industrial and Harsh Environments
  • AR Coated for <0.5% Reflection in the Visible Spectrum

Hydrophobic Windows are designed to repel oil (oleophobic) and other liquids (hydrophobic), facilitating cleaning and ensuring maximum transmission of incident light. Hydrophobic treated surfaces cause liquids to form droplets on contact rather than be absorbed or spread across the surface of the optic. Hydrophobic Windows feature anti-reflection coatings to provide less than 0.5% reflection per surface from 425 – 675nm. These windows are ideal for harsh environments, portable handheld devices, or biometric measurement devices. 

Indoor Hydrophobic Windows are ideal for applications where cleaning or abrasion is expected while Outdoor Hydrophobic Windows provide better performance both at elevated temperatures and under direct UV light exposure.

Hydrophobic Window Reflectivity Curve
Hydrophobic Window Reflectivity Curve
Hydrophobic Window Transmission Curve
Hydrophobic Window Transmission Curve
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