Design Research Optics - Performance Engineered CO2 Laser Optics
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  • WR-4.50-Z-3.60-BBAR(7-12.5)


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ZnSe , Rectangle Window (BBAR Coated) - Model #: WR-4.50-Z-3.60-BBAR(7-12.5)
Size: 4.50” X 3.60” +.000”, -.010”
E.T. 5mm
Coated BBAR @ 7–12.5µm both sides Transmission > 96% avg. over range in accordance with attached spectral curve

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Material: Zinc Selenide (ZnSe)
Laser Grade Diameter Tolerances: +.000”, -.005” for parts up to 2.000”Ø
+.000”, -.010” for parts from 2.50” to 6.000”Ø
Thickness: ±.010”
Parallelism: < 30 seconds of arc
Surface Quality: < 40/20 scratch – dig Laser Finish

Adhesion, moderate abrasion, humidity, cleanability and temperature influence to industry standard

Spectral Performance:

Standard high efficiency low loss
anti-reflectance thin film coating applied to both sides.
Reflectance per surface 2% average from 7–12.5µm
Transmission > 96.0% average from 7-12.5µm

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