Prisms Delivers Up to 90% Efficiency Over the Entire Operating Wavelength Range To
Deliver More Sensitivity Than Most Diffraction Grating Based Spectrometers.
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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.
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The reason the spectrometer prism has
curved sides is to reduce, or eliminate,
aberrations that can degrade spatial
and spectral resolution.
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All "points" on the entrance slit are
imaged as points, at each wavelength,
on the detector. Be sure to view the
animation.
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The prism spectrometer mounts as an
accessory to most upright, inverted
and stereo microscopes
PARISS prism spectrometer schematic
PARISS prism spectrometer properties
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Spectral range: 365 - 920 nm
simultaneously
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Spectral resolution ~1 nm at 436 nm
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% Reflection
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% Transmission
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Absorption (Optical Density)
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Color Coordinates (CIE)
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Fluorescence, Luminescence
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Build spectral libraries
Copyright © LightForm Inc, 2011
View the presentation to learn
more about the PARISS prism
spectrometer