OKSI designs and deploys custom sensors for unique applications.

4DIS (Four Dimensional Imaging Spectrometer)	Echelle spectrograph	Large format MWIR camera
Multiband Imaging System	MW/LWIR Dual Band Camera	Scanning UV Raman Spectrometer
Trigger Sensor
4DIS (Four Dimensional Imaging Spectrometer) - a sensor designed to capture full hyperspectral image cubes at the camera frame rate. Specific sensors built, include:

Type	Spectral range / resolution	Spectrometer	Order sorting	FPA	Data rate	Comments / status
VNIR	400-1000 / 10 nm	Offner uncooled	Yes	TE cooled CCD or CMOS (interchangeable cameras)	100 fps CCD; 100K fps CMOS	Can be configured with I2CCD or with other CMOS/ CCD cameras. Operational since ~1999
	380-980 / 5 nm	Offner uncooled	Yes	CMOS + blue enhanced image intensifier	120K fps in reduced resolution mode	For long range faint targets; operational
SWIR	900-1700 / 3.8 nm	Offner uncooled	Yes	InGaAs	1500 fps	Being assembled now
	900-2500 / 7.2 nm	Offner uncooled	Yes	InSb	138 fps	Designed for PRA / Raytheon Directed Energy program
MWIR	1800-5000 / 6.3 nm	Offner cooled to 150K (two 5 Watt Stirling)	Yes	InSb	86 fps	Built for MPR plume measurements; operational since 2006
Dual band MW / LWIR	3-5µm / 8.3 nm (2nd order) 6-10µm / 16.6 nm(1st order)	Offner cooled by LN2	Not applicable	Dual band MCT	60 fps	640×512 FPA

4DIS-MWIR Data	4DIS-MWIR Data Radiometrically Calibrated Imagery (Stage I – mid burn)	4DIS-MWIR Data: Spectral Signatures
4DIS-MWIR camera with a 200 mm reflective telescope	4DIS-MWIR field test at Edwards AFB	4DIS-MWIR at Vandenberg AFB
4DIS-VNIR HS at Big Crow	4DIS-VNIR HS (computer console) at Big Crow	4DIS-VNIR on 1.2 m AMOS telescope
4DIS-MW/LWIR-dual for AEDC	4DIS-MW/LWIR-dual for AEDC with maintenance dewar	4DIS-SWIR1700 with 1500 mm Schmidt-Cassegrain telescope
4DIS-SWIR1700 with APT Relay Optics	4DIS-SWIR2500 with 1500 mm Schmidt-Cassegrain telescope	High Speed VNIR 4DIS

Echelle spectrograph, 400 to 1,000 nm, flexible configuration. Interchangable foreoptics/collimater from telephoto to wide FOV. Interchangeable cameras from I2CMOS operating at 150,000 spectra per second to low noise T.E. cooled cameras and interchangeable optics
Solar spectrum captured by Echelle with the major Fraunhofer lines
Echelle spectrometer (CAD Drawing)	Echelle spectrometer	Echelle spectrometer with Redlake high-speed camera
Echelle spectrometer with 457 mm (18") telescope	Echelle spectrometer showing the Phantom high-speed camera	Echelle spectrometer with 70 mm lens

Large format MWIR camera operating at up to 113 fps at 1024×1024 pixels. The camera has a built in VariAp® allowing it to operate with various reflective telescopes and also refractive lenses.
MWIR camera	MWIR camera with 500 mm F/1.67 lens	MWIR camera with 12.5" Ritchie Chrétien telescope	MWIR camera with 12.5" Ritchie Chrétien telescope
Multiband Imaging System for Port Security and Harbor Surveillance: Systems developed to simultaneously capture video in V-NIR, SWIR, MWIR, and LWIR deployed from shore and boat. Data collected day and night overlooking the Hudson River, which defines the port of New York / New Jersey.
Data collect overlooking the Hudson River	Camera suite: V-NIR, SWIR, MWIR, and LWIR	Boat installation of multi-camera Pod	Night time data collect
MW/LWIR Dual Band Camera, 256×256, Stirling cooled.
Scanning UV Raman Spectrometer: Design: Two Czerny-Turner scanning spectrographs, with rotating triple grating each. Excitation Spectral Range: tunable over 210 to 400 nm. Spectral Resolution: 10 cm^-1 over the entire range. Broad Raman shift: From 700 to 1,800 cm^-1. Beam dump for excitation laser (designed to direct laser beam to dump at all excitation wavelength). Stray light rejection: better than 1:1E6, and better than 1:1E8 for excitation laser in +1,0,-1 diffraction orders. Self calibration using the tunable excitation laser. Applications: Chem/bio hazardous materials.
Trigger Sensor: Designed to capture a very short flash to be used for triggering other high speed sensors.
Trigger sensor		Trigger sensor