The PARISS® Micro-Spectrometer Prism spectrometer schematic Prisms Delivers Up to 90% Efficiency Over the Entire Operating Wavelength Range To Deliver More Sensitivity Than Most Diffraction Grating Based Spectrometers. The prism spectrometer uses a prism with "curved" sides to make it optically “active.” The prism is actually closer to being a lens with a wedge.  An associated focusing mirror combines with the curved prism to deliver point- to-point imaging. The reason the spectrometer prism has curved sides is to reduce, or eliminate, aberrations that can degrade spatial and spectral resolution. All "points" on the entrance slit are imaged as points, at each wavelength, on the detector. Be sure to view the animation. The prism spectrometer mounts as an accessory to most upright, inverted and stereo microscopes Prism spectrometer presentation PARISS prism spectrometer schematic PARISS prism spectrometer properties Spectral range: 365 - 920 nm simultaneously Spectral resolution ~1 nm at 436 nm % Reflection % Transmission Absorption (Optical Density) Color Coordinates (CIE) Fluorescence, Luminescence Build spectral libraries LightForm_Logo Copyright © LightForm Inc, 2011 View the presentation to learn more about the PARISS prism spectrometer