UV optical filter 280nm for liquid chromatograph

Top grade uv optical filter 280nm used in liquid chromatograph Kunming Yulong Optical&Electronics Technology Co., Ltd. is a professional manufactures of optical  coatings and optical filters processing in China. Top one Astronomical Interference Optical Narrow  Bandpass Filters manufacturer in China,Third in the world. We have passed SGS ROHS and ISO9001. Interference Optical Narrow Bandpass Filters are used to selectively transmit a portion of the well-defined  spectrum while rejecting all unwanted wavelengths. Our Interference filters provide better  transmission, steeper cut on and cut off slopes, greater blocking, and increased durability.    280 Bandpass Filter Overview:   Filter Advantages:  1)High Transmission,and the optical signal attenuation rate is small, effectively improve the working distance and light intensity; 2)High cut-off rate,effectively prevent stray light interference; 3)High wavelength accuracy 4)More than 10 years’ experience in the production of optical filter, imported coating machine to produce, IAD ion assisted deposition technology and to ensure that the low temperature drift and film firmness stronger.
   280 Bandpass Filter Specifications:   280nm FWHM10nm Bandpass Filter

	BP280 FWHM=10nm
CWL	280nm±5nm
FWHM	10nm ±3nm
Tpeak	T≥40%@280±5nm(CWL)
Blocking	Tmax<1%@200-258nm & 320-1100nm
Surface	60/40
Substrate	Quartz glass
Circle	φ6.5-φ50mm
Square	3×3-55×55mm
Thickness	0.55-5mm

   280 Bandpass Filter Optical Curves:   Kunming Yulong Optical&Electronics Technology Co., Ltd. is a professional manufactures of optical coatings and optical filters processing in China. Top one Astronomical filters manufacturer in China,Third in the world.Our products include Astronomical Filter,Bandpass Filters,Edge filters, Longpass & Shortpass Filters,Beam spliters,Anti-reflective Coating,Optical Mirrors and so on.Our company were established in 1999,have five precious vacuum coating machines,a set of spectrophotometer (UV-VIS-NIR Shimadzu UV3150) which is imported from Japan.    Core competition ability 
Technical Assurance:The CEO has 25 years experience of optical filter design and manufacturing,once   worked as principal of first Chinese military optical instrument industry. Spot Supply: Thousands of products have been manufactured each year,some products have been   standardized,rich merchandise in stock,deeply lower the customer's sample fee and delivery circle.    Exhibition & Customer Visitation   Product Orientation   Optical Coating Products Using Tips/Notices: