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Copyright © LightForm Inc, 2017
LightForm Inc: Pioneering Analytical Hyperspectral Microscopy Since 1996

PARISS: Curved Prism Imaging Spectrograph / Spectrometer Specifications

A. PARISS micro-spectrometer/spectrograph optical configuration showing the unique prism with curved sides. B. PARISS micro-spectrometer/spectrograph shown with a scientific CCD for spectral acquisition C. Calibration lamp scan showing wavelength range and resolution
Spectrometer/Spectrograph Specifications* Spectra detector: The PARISS spectrograph is designed for use with a digital Charged Coupled Device (CCD) Spectrograph size: 210 x 55 x 85 mm Weight: 1,250 g (Excluding a camera) Moving parts: None, Optimizes stability and reproducibility Aberration Correction: The wavelength dispersive element is a prism with optical “power.” Concave and convex surfaces on the front and rear surfaces correct astigmatism, coma, and spherical aberration. Spectral range: 365 to ~920 nm or 400 to ~990 nm, depending on choice of camera. All spectra acquired simultaneously without order sorting filters Data output format: Using PARISS software wavelength versus intensity, linear with wavelength Light throughput efficiency: Internal transmission ~90% from 450 to ~920 nm. Outperforms all diffraction gratings (typically ~60% at a single wavelength, the “blaze wavelength”) Entrance slit dimensions: Standard 5 mm. by 25 micron, widths of 50 and 100 micron are available in pre-aligned mounting assemblies. Spatial resolution at the sample: Depends on slit width and camera pixel size ~ 0.6 micron by ~0.6 micron with 40x magnification typical.  Nanoparticles may be detected but not resolved Spectral resolution: ~1 nm measured at the full width at half maximum of the 436 nm Hg line, depends on slit width and camera pixel size. Prism spectral refraction: Eliminates high order diffraction present as spectral pollution in diffraction gratings.
PARISS spectrograph optical geometry
A
PARISS spectrometer and spectrograph
B
About Imaging Spectrometers About Imaging Spectrometers Hg calibration lamp spectrum scan showing range and resolution
C
* Specifications can and do change without notice, contact LightForm for  current information
LightForm_Logo
Copyright © LightForm Inc, 2017
LightForm Inc: Pioneering Analytical Hyperspectral Microscopy Since 1996
PARISS®: A Unique Curved Prism Imaging Spectrograph Spectrometer Specifications
A. PARISS micro-spectrometer/spectrograph optical configuration showing the unique prism with curved sides. B. PARISS micro-spectrometer/spectrograph shown with a scientific CCD for spectral acquisition C. Calibration lamp scan showing wavelength range and resolution
Spectrometer/Spectrograph Specifications* Spectra detector: The PARISS spectrograph is designed for use with a digital scientific Charged Coupled Device (CCD) Spectrograph size: 210 x 55 x 85 mm Weight: 1,250 g (Excluding the camera) Moving parts: None, Optimizes stability and reproducibility Aberration Correction: The wavelength dispersive element is a prism with optical “power.” Concave and convex surfaces on the front and rear surfaces correct astigmatism, coma, and spherical aberration. Spectral range: 365 to ~920 nm or 400 to ~990 nm, depending on choice of camera. All spectra acquired simultaneously without order sorting filters  Data output format: Using PARISS software wavelength versus intensity, linear with wavelength Light throughput efficiency: Internal transmission ~90% from 450 to ~920 nm. Outperforms all diffraction gratings (typically ~60% at a single wavelength, the “blaze wavelength”) Entrance slit dimensions: Standard 5 mm. by 25 micron, widths of 50 and 100 micron are available in pre-aligned mounting assemblies. Spatial resolution at the sample: Depends on slit width and camera pixel size ~ 0.6 micron by ~0.6 micron with 40x magnification typical.  Nanoparticles may be detected but not resolved Spectral resolution: ~1 nm measured at the full width at half maximum of the 436 nm Hg line, depends on slit width and camera pixel size. Prism spectral refraction: Eliminates high order diffraction present as spectral pollution in diffraction gratings.
PARISS spectrograph optical geometry
A
PARISS spectrometer and spectrograph
B
About Imaging Spectrometers About Imaging Spectrometers Hg calibration lamp spectrum scan showing range and resolution
C
* Specifications can and do change without notice, contact LightForm for  current information