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3" Diameter, Plastic Optical Windows

Stock #43-925 Other Coating Options
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Qty 1-49
Qty 50+
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Abbe Number (vd):
Diameter (mm):
76.20 ±0.3
Diameter (inches):
Thickness (mm):
1.50 ±0.15
Density (g/cm3):
Index of Refraction nd:
Operating Temperature (°C):
100 Continuous, 130 for 1 hour
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Thermoset ADC (CR-39®)
Transmission (%):
>90 (typical)
Protective Window
Wavelength Range (nm):
400 - 1500

Regulatory Compliance

RoHS 2015:
Reach 223:

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Product Family Description

  • Lightweight Alternative to Glass Windows
  • Excellent Thermal and Chemical Resistance
  • Higher Transmission than Similar Transparent Plastics

Clear Optical Cast Plastic Windows are optically clear, yet durable enough to withstand harsh environments. New plastic technology has produced windows with properties that can satisfy a variety of needs, but at half the weight of glass windows. Compared to similarly available transparent plastics, Thermoset ADC windows have the highest transmission and lowest haze, have at least 25 - 50 times greater abrasion resistance, and are resistant to all types of chemicals and solvents (acetone, acids, alkali and alcohols). The windows can also be easily drilled with high-speed carbide bits for all types of mounting.

Technical Information

Compatible Mounts

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