Ernest 640 - 60 Hz - 12º HFOV - Shuttered & Shutterless

Key features: 

• VOx uncooled microbolometer technology
• 640 x 480 pixels
• 12 µm pixel pitch
• 60 Hz full frame
• 14-bit ADC
• HFOV = 12 º (35 mm, f/1)
• NEdT <35 mK (300K scene, F/1 lens, 60 Hz)
• USB2 connectivity (USB-C female connector)
• UVC protocol (webcam-like)
• Free C++ SDK for Windows, Linux (x86_64) and ARM (Raspberry Pi 5, Jetson Orin NX etc) - Includes OpenCV sample app for quick integration and deployment
• Embedded mechanical shutter for shuttered operation
• Shutterless mode with factory calibration with lens on
  
• Intrinsic dynamic range: ~-20º to ~+400ºC

Dimensions and weight: 

⌀38 mm x 53.2 mm (enveloppe) - 69 g

Modes of operation: 

      1. Shuttered operation: 

• • An embedded mechanical shutter located between the sensor and the lens is activated for on-the-fly flat-field corrections (FFC).
  • As the sensor temperature changes (time to reach thermal equilibrium, changes in environmental temperature etc), the uniformity of the sensor’s response also changes and a flat-field correction is necessary.
  • A flat-field correction essentially consists of an offset and gain correction for each pixel in order to have a homogeneous intensity distribution (or flat-field) when looking at a black body, in this case the metal surface of the mechanical shutter itself.
  • The FFC is activated automatically by setting a time delay (ms) or sensor temperature difference (ºC/K) or manually by calling a function of the SDK.

      2. Shutterless operation: 

• • This mode requires a shutterless factory calibration during which the entire camera with its lens is placed in a thermal chamber to simulate a change of environmental temperature (and therefore sensor temperature) in a controlled fashion.
  • The thermal chamber temperature is varied between ~+10ºC and +60ºC.
  • The calibration consists of acquiring data with the camera facing a black body as the thermal chamber temperature changes.
  • The result of this calibration is a unique set of correction files that are specific to each camera.
  • These files are contained in a folder called data. When using the camera in shutterless operation, the image quality remains the same despite changes in the sensor temperature.

UVC protocol:

USB Video Class Device: webcam-like for experience for easy integration and plug-and-play feeling

Free C++ SDK:

SeeCube C++ API for Windows 10, 11, Linux x86_64 and ARM (Raspberry Pi, NVIDIA Jetson NX)

Easy-to-use app allowing the user to:

• open/close shutter
• enable/disable shutterless correction
• AGC/mapping mode (full scale, automatic min/max, manual, histogram equalization, adaptive mapping)
• change color mapping / LUT (10 color maps)
• acquire 1-point NUC by covering the lens
• acquire 1-point NUC by shutter activation
• enable/disable temporal filtering
• save still images (uncompressed + color)
• save videos (uncompressed + color)