Chroma Technology optical filters and sets

Chroma Technology manufactures optical interference filters for a wide range of imaging and detection applications such as life science, fluorescence microscopy, flow cytometry, biomedical instrumentation and surgical devices.

All interference filters and most other filters are sputtered with hard-coated thin films. Some filters employ e-beam hard coatings. Types include single bandpass and single edge as well as multi bandpass and multi-dichroic. Complete optical filter sets are available for fluorescence and accessories include cubes, sliders, rings and diagnostic slides designed to meet the user’s microscopy requirements.

With its line of PCR sputtered optical filters, Chroma Technology supplies key components of polymerase chain reaction (PCR) laboratory and clinical test solutions, including digital PCR (ddPCR) and quantitative PCR (qPCR) platforms. The company’s ET filters for fluorescence applications such as PCR are designed to provide high levels of spectral precision. This allows for minimising spectral overlap — which is always present between fluorescent probes — and optimising the filter pass bands. The high degree of spectral precision enables reproducible results, allowing for six or more distinct fluorescence channels. Coupled with the high out-of-band blocking (≥OD6) and steep transitions from high transmission to deep blocking, the filters deliver high signal-to-noise ratios.