{"product_id":"bp632-8-2-9","title":"BP632.8-2.9 Bandpass Filter(CWL=632.8nm,FWHM=2.9nm)","description":"\u003cp data-path-to-node=\"0\"\u003eThis BP632.8-2.9 bandpass filter is designed to transmit an extremely narrow red band specifically centered at 632.8 nm while strongly reducing unwanted out-of-band light.\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003eBecause 632.8 nm is the primary emission wavelength of a standard Helium-Neon (HeNe) laser, this filter is highly suitable for HeNe laser line isolation, interferometry, holography, alignment tasks, and precision optical sensing systems relying on HeNe laser illumination. It helps precisely isolate the target red laser signal, deeply reduce background interference across the visible and near-infrared spectrum, and preserve high signal brightness for high-contrast measurements.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eKey specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWavelength \/ main spec: 632.8 nm center wavelength (CWL)\u003c\/li\u003e\n\u003cli\u003eBandwidth \/ transition spec: 2.9 nm FWHM\u003c\/li\u003e\n\u003cli\u003eTransmission \/ blocking: T \u0026gt; 90%; OD5 blocking from 500–1000 nm\u003c\/li\u003e\n\u003cli\u003eFormat \/ availability: Available in 12.5 mm to 25 mm diameters (mounted and unmounted options)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SyronOptics","offers":[{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ dia12.5mm(mounted)","offer_id":51312773234971,"sku":"SO3014522-d12.5mt","price":270.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ dia12.5mm(unmounted)","offer_id":51312773267739,"sku":"SO3014522-d12.5u","price":270.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ dia25mm(mounted)","offer_id":51312773300507,"sku":"SO3014522-d25mt","price":350.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ dia25mm(unmounted)","offer_id":51312773333275,"sku":"SO3014522-d25u","price":350.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ SM05(0.535″-40TPI)","offer_id":51312773366043,"sku":"SO3014522-sm05","price":270.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ SM1(1.035″-40TPI)","offer_id":51312773398811,"sku":"SO3014522-sm1","price":350.0,"currency_code":"USD","in_stock":true},{"title":"CWL=632.8nm \/\/ FWHM=2.9nm \/ OD5@500-1000nm \/\/ T＞90% \/ C-Mount(1″-32TPI)","offer_id":51312773431579,"sku":"SO3014522-cmount","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/8755\/0491\/files\/bp-632-8-2-9-od5-500-1000-nm_2f998686-19b9-47f9-99ba-b77be33488ff.svg?v=1777475500","url":"https:\/\/syronoptics.com\/products\/bp632-8-2-9","provider":"SyronOptics","version":"1.0","type":"link"}