The Employee-owned Chroma Technology Corp specializes in the design and manufacture of optical filters and coatings for applications that require extreme precision in color separation, optical quality, and signal purity: low-light-level fluorescence microscopy and cytometry spectrographic imaging in optical astronomy laser-based instrumentation Raman spectroscopy. Chroma Filters are used almost exclusively by the four major microscope manufactures. The quality of their product and dedication to knowledgeable microscopy sets Chroma Technology apart as the premier filter manufacture in the world when it comes to fluorescent filter sets.