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1.0 Scope
Tau ™ SWIR is a miniature, 38mm×38mm×47mm, short wave infrared (SWIR) imaging core from FLIR
Systems, built around FLIR's ISC1202 InGaAs SWIR sensor. This sensor provides high sensitivity from
0.9 to 1.7μm, low dark current, temperature stabilization and on chip (in-pixel) correlated double sampling
(CDS) for noise reduction, CDS fold-over protection (prevents "black sun effect"), anti-blooming (low gain
only), snapshot integration, 640 × 512 resolution with a 15μm pixel pitch running at 60 frames per second.
FLIR's proprietary image processing algorithms start with 14-bit digital imagery and result in high-quality,
analog video or 8-bit digital imagery in both low light conditions and full daylight. Frame rates may be
adjusted from a minimum of 1fps to a maximum of 60fps for a full frame image. A preset 2X window of
the central 320 × 256 pixels may be selected allowing for a frame rate of up to 120fps. An external sync
mode allows integration with other camera systems, SWIR illuminators or pulsed lasers, synchronizing the
integration period of the camera with the external system.
There are three sensor gain modes providing increasing sensitivity, Low, Mid or High. Low gain is
appropriate for well illuminated, wide dynamic range scenes while each step up in sensitivity allows
imaging under lower SWIR illumination levels with an accompanying decrease in the dynamic range that
can be imaged. Within each gain mode, the integration period may be adjusted from as little as 10μs to as
high as the frame period. Response of the 14-bit digital imagery increases linearly with increasing
integration period.
FLIR's built in Auto-Exposure algorithm allows automatic, smooth transitions of integration period (tint)
based on scene content to maximize image quality and detail without user intervention.The camera includes
FLIR's advanced Non-Uniformity Correction (NUC), in-camera nonresponsive pixel replacement and
Automatic Gain Control (AGC) algorithms. The Tau SWIR comes standard with a C-mount lens adapter
installed. This may be removed allowing for custom lens mounts.
This User's Guide includes quick-start information for the Tau SWIR, as well as detailed descriptions of
functions and adjustments for the camera that can be performed using FLIR's Tau SWIR Camera Controller
GUI.
2.0 Resources
FLIR Reference Documents
Document Number
102-2009-42
102-2009-40
102-2009-44
3.0 Unpacking the Camera
The information contained in this document pertains to a dual use product controlled for export by the Export Administration
Regulations (EAR). Diversion contrary to US law is prohibited. US Department of Commerce authorization is not required prior to
export or transfer to foreign persons or parties unless otherwise prohibited.
Tau SWIR 1202 Software IDD
Tau SWIR 1202 Product Specification
Tau SWIR Mechanical IDD
Document Title
Page 7
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