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BoDian optical company specializes in optical filter coating, provide variety of optical filters and optical solutions.Optical filters are widely used in instrumentation, fluorescence microscopy, flow cytometry, astronomy/aerospace, photolithography, color imaging, UV, and laser applications. Our optical filters are manufactured to precise specification and tolerance and spans the spectrum between 300-1700nm. We can produce high performance optical filters in large volumes.
Optical Bandpass filters are designed to transmit a specific waveband while rejecting all energy outside the pass band of the filter.Center wavelength (CWL) is from 254nm to 1200nm and pass bandwidths (FWHM) is from 3.0nm to 100nm. Narrow band pass filter mainly used in biochemical analyzer and enzymatic analyzer. Typical bandwidth of narrow bandpass filter is 8+/-2nm. Band pass filers with a bandwidth of 20-50nm is mainly used in fluorescence system and penal investigation.
Dichroic filters are multi-layer thin-film coatings deposited on a glass substrate using high vacuum deposition techniques. Dichroic filter structures typically consist of one of the following design types: short wave pass, long wave pass, bandpass filter at a certain angle of incidence. Bodian Company provides dichroic filters for commercial, aerospace and solar applications. Dichroic filter coatings are sometimes known as color separation filter coatings, because their purpose is to separate incoming visible light into separate colors or into beams of different wavelengths.Applications of dichroic filters or color separation filters include color correction and light balancing, and they are found in architectural, studio and theatrical lighting, color TV or camcorder cameras, automated color sorting systems, color enlargers and color projectors.
Edge pass filters are designed to isolate transmitted wavelengths from blocked wavelengths in a sharp transition.There are two types of edge filters: Long Wave Pass edge filters and Short Wave Pass edge filters.High transmission of edge filter make it possible to detect the weakest signals.
