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25mm Diameter, Indoor, Hydrophobic Window

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Stock #36-072 3-4 days
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€85,50
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€85,50
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€76,50
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Specifications

General

Type:
Protective Window
Note:
Indoor

Physical & Mechanical Properties

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
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
480
Poisson's Ratio:
0.2
Young's Modulus (GPa):
64

Optical Properties

Abbe Number (vd):
65.41
Coating:
Hydrophobic (425-675nm)
Coating Specification:
Ravg <0.5% @ 425 - 675nm
Index of Refraction (nd):
1.472
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
80-50
Wavelength Range (nm):
425 - 675

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
3.25
Contact Angle (°):
Water: 90 - 105
Oil: 30 - 40
Density (g/cm3):
2.23

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 242:

Product Details

  • 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.

Technical Information

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

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