{"product_id":"new-edmund-optics-39-250-sapphire-window-35mm-dia-1mm-thick-vis-nir-coated","title":"NEW Edmund Optics 39-250 Sapphire Window 35mm Dia 1mm Thick VIS-NIR Coated","description":"\u003ch1\u003eNEW Edmund Optics 39-250 Sapphire Window 35mm Dia 1mm Thick VIS-NIR Coated\u003c\/h1\u003e\u003cp\u003e Brand: Edmund Optics  Part Number \/ Model: 39250 (Stock #39-250)  Substrate Material: Single crystal sapphire (Al2O3)  Component Type: Protective Precision Window  Diameter: 35.00 mm (+\/-0.25 mm tolerance)  Thickness: 1.00 mm (+\/-0.10 mm tolerance)  Optical Coating: Dual-sided Broadband Anti-Reflection (BBAR) VIS-NIR Coating optimized for 400 - 1000 nm wavelengths  Coating Performance Metrics: Ravg less than or equal to 0.25 percent at 880 nm, Ravg less than or equal to 1.25 percent across 400 - 870 nm, and Ravg less than or equal to 1.25 percent across 890 - 1000 nm  Clear Aperture: Greater than or equal to 31.50 mm (90 percent of overall diameter)  Surface Quality: 80-50 scratch-dig specification  Parallelism: Less than or equal to 3.5 arcminutes\u003c\/p\u003e \u003cul\u003e\u003c\/ul\u003e\u003cdiv class=\"selroattributelist\"\u003e\u003c\/div\u003e\u003cdiv class=\"selroattributelist\"\u003eNOS, surplus\u003c\/div\u003e","brand":"Edmund Optics","offers":[{"title":"Default Title","offer_id":46108692447368,"sku":"F-120-HLO-6-DB-1xTime","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1919\/1299\/files\/5271890_7a4b2c5e-97a7-478d-b10d-1a2b244b4adc0.jpg?v=1781317136","url":"https:\/\/vbindustrialsupply.com\/products\/new-edmund-optics-39-250-sapphire-window-35mm-dia-1mm-thick-vis-nir-coated","provider":"VB Industrial Supply","version":"1.0","type":"link"}