Colored optical filter

precisioninterferencefor general purposes

Knight Optical supply high quality optical components for use in fluorometers, fluorescence spectrometers, microplate readers and x-ray fluorescence applications. These applications are extensively used in the medical and biomedical sectors, but are also to be found in the fields of Research and Development, microanalysis and thermal imaging. In addition to this, we also provide a wide range of optics to manufacturers of deep-sea analytical instrumentation. 1. Fluorescence Filters We supply excitation and emission filters offering excellent levels of transmission within a wide range of bandwidths - from one to one hundred nanometers and blocking of up to OD5. All of our filters are CNC scribed and hermetically sealed to ensure maximum long-term stability and to prevent any leakage of moisture that can occur when filters are sealed into metal housings with resin alone. Whilst our standard range of interference bandpass filters are mounted, un-mounted types with aerospace painted edges can be supplied at special request. 2. Optical Mirrors Our optical mirrors are to be found in excitation and emission monochromators to project light on to detectors and LEDs at the optimum angle of incidence. We offer a variety of mirror grades, ranging from general purpose grade plane mirrors to precision grade components with flatness in excess of Lambda/10. With the correct coatings, these can be transformed into dichroic, hot and cold mirrors.