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Infrared Camera System for Very Low Background Instrumentation

Camera Components

The camera consists the following components:

  • Focal Plane Array (FPA): Detector array integrated with Read out integrated circuit (ROIC) in a hybrid unit

  • Dewar: LN2 pour filled dewar with no internal optics, other than a limiting cold aperture defining the F/# and a AR coated sapphire entrance window

  • Orientation: Available in Sideward looking, Downward looking or Upward looking options

  • LN2 Cooling System: Includes dewar interface bulb, hoses and tank valve

  • Control Electronics: Provide all clocking and biases to the FPA and digitizing array in multiple video taps at selected pixel rates

  • Cables: Data, Communication and Power
  • Temperature sensor/control electronics: Internally mounted temperature sensor and heater

Available Options

  • Power supply
  • Image acquisition system

Upward looking MicroCam.



Parameters Description
FPA format 256x256 with 40 micron pixel pitch (PICNIC ROIC).
640x512 or 1016x1016 with 18 micron pixel pitch (HAWAII ROIC).
Detector material Silicon for visible band from 400 nm to 1.0 mm.
InGaAs for NIR from 900 to 1600 nm.
HgCdTe for SWIR to MWIR from 900 nm to 5.0 mm.
Mean QE Wavelength, AR coating and temperature dependent. >80% peak QE achievable.
Frame rate Range from 1Hz to >60 Hz, depending on FPA array size, clock speed and ROIC type.
Mean dark current Detector material and temperature dependent. (e.g.  < 2e- for HgCdTe at 77K ).
Total Noise per frame ROIC dependent  (e.g. < 20 e- for HAWAII ROIC achievable ).
Mean well capacity >80,000 e- depending on system gain.
Response operability ≥98%
Integration and triggering Can be triggered by TTL compatible input signal. Integration time will be Pattern Generator register entry controlled by customer.
Windowing mode ROIC type dependent
Electrical interface 16-bit data digitization with either CameraLink or AIA 16 bit RS422 w/ RS232 differential serial link, electrically isolated from camera electronics.

Published Information – Cleared for Public Release by the DoD’s Office of Security Review, Case 08-S-0802

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Teledyne Scientific & Imaging, LLC
1049 Camino Dos Rios, Thousand Oaks, CA 91360
Phone: (805) 373-4545   Fax: (805) 373-4775
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