Multispectral Polarized Scene Projector

The MPSP represents the most advanced display technology in the area of infrared scene modulation. It can generate both static and dynamic SWIR images, and allows the user to select spectrum and spatially modulate an image's polarization on pixel level.

Data Sheet

Multispectral Polarized Scene Projector

Developed under US government sponsorship, the Multispectral Polarized Scene Projector (MPSP) 371S is the most advanced display instrument in infrared scene modulation. It can generate both images and videos in the short wave infrared (SWIR) with spatial frequency and polarization modulation.

With the use of multispectral polarimetric sensors – sensors that detect the frequency and polarization of light waves – to find and identify man-made objects and obscured targets of strategic interest in cluttered backgrounds, the MPSP 371S is the ideal scene simulator for natural or camouflaged targets.

The MPSP 371S is sold to users as a completed, stand-alone instrument. It presents SWIR scenes from its memory storage, an IR sensor, or a foreign rendering computer, to a user sensor. The projector enables lab tests and evaluations of spectropolarimetric sensors and simulates polarized multispectral images of military targets for hardware-in-the-loop (HWIL) testing.

Superior to current state-of-the-art IR scene projectors, projectors that lack image polarization information and spectral band and bandwidth controllability, the MPSP 371S projects SWIR scenes with user selectable:

  • Spectrum scan coverage: 850-1650 nm
  • Spectrum resolution: 12-100 nm
  • On-pixel polarization: all six polarizations

Polarization Coding

Captured Image

polarization coding

SWIR image


Polarimetric Images

polarimetric images

Spectrum

(wavelength & bandwidth controlled)

spectrum











The MPSP 371S consists of a powerful light illumination engine, high speed liquid crystal on silicon (LCoS) display engines, and a variable aperture (opening) and focal length optical projection engine (OPE). Projected scenes are pre-loaded into system memory for playback.

  • Polarimetric imagery is generated from LCoS panels consisting of 512 x 512 pixels each. The polarization manipulation is created by electro-optically modulating the phase of individual LCoS pixels, so that the exiting light energy actively changes to form polarimetric video images that are then coupled to the OPE.

  • The OPE is built with reflective components to prevent refracted aberrations. It features a variable aperture, operating up to 15 cm (6”) in diameter, and variable image size up to 10 cm (4”). The OPE projects the imaging beam directly onto the sensor under assessment.

In addition to the MPSP 371S, we also offer a series of IR Scene Projector products for different IR regions and blackbody apparent temperatures, such as single-/multi- color displays in visible near-infrared (VNIR), mid wave infrared (MWIR), and long wave infrared (LWIR).

MPSP 371S Specifications

Spectral range 850-1650 nm Clear aperture up to 15 cm (variable)
Spectral image bandwidth 12-100 nm (discretely variable) Optical power per pixel 0.05 nW
Image pixel format (pixel pitch size) 512 x 512 pixels (37.5 µm) Polarization contrast 10 : 1 (correct : wrong)
Pixel effective fill factor 83.4% Selectable polarizations LHP, LVP, +45, -45, RHC, and LHC
Pixel operability >99.99% Projected image beam collimated or customer demanded FOV
NUC (non-uniformity correction) c. v. <5% (Coefficient of variation) Projected image size Up to 10 cm x 10 cm (variable)
Dynamic range 12 bits Input electric power 120 V (69 Hz), 20 A
Frame rate 30-200 Hz Cooling LCoS (chilled water)
Rest: air cooled
Maximum 12 bit frame rate 200 Hz Dimensions 102 (L) x 102 (W) x 55 (H)
Response time <5 ms Weight ~ 90 kg
Maximum duty factor Up to 100%