FLIR SYSTEMS – FLIR LEPTON® Long Wave Infrared (LWIR)

FLIR LEPTON

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Lepton® is a complete long-wave infrared (LWIR) camera module designed to interface easily into native mobile-device interfaces and other consumer electronics. It captures infrared radiation input in its nominal response wavelength band (from 8 to 14 microns) and outputs a uniform thermal image.

Device Overview
Lepton is an infrared camera system that integrates a fixed-focus lens assembly, an 80 x 60 long-wave infrared (LWIR) microbolometer sensor array, and signal-processing electronics. Easy to integrate and operate, Lepton is intended for mobile devices as well as any other application requiring very small footprint, very low power, and instant-on operation. Lepton can be operated in its default mode or configured into other modes through a command and control interface (CCI).

A view of the Lepton camera, both as standalone and mounted in a socket:
Lepton camera
A typical application using the Lepton camera module is shown below:

Lepton camera module

1) The CCI pullup resistors are required and must be handled outside the camera module by a host controller
2) For the shuttered configuration, VDDIO must be greater or equal to 2.8V


Simplified Block Diagram:

Simplified Block Diagram

APPLICATIONS

  • Safety and security
  • Unmanned systems
  • Automation
  • Smart devices
  • Robotics
  • Gaming and augmented reality

FEATURES

  • Integral shutter configuration:
    - 10.5 x 11.7 x 6.4mm (without socket)
    - 10.8 x 11.7 x 6.7mm (including socket)
  • 51° HFOV, 63.5° diagonal (f/1.1 silicon doublet)
  • LWIR sensor, wavelength 8 to 14μm
  • 80(h) x 60(v) active pixels
  • Thermal sensitivity <50mK
  • Integrated digital thermal image processing functions, including automatic thermal environment compensation, noise filters, non-uniformity correction, and gain control
  • Optional temperature-stable output to support radiometric processing
  • Export compliant frame rate (<9Hz)
  • SPI video interfaces
  • Two-wire I2C-like serial-control interface
  • Uses standard cell-phone-compatible power supplies: 2.8V to sensor, 1.2V to digital core, and flexible IO from 2.5V to 3.1V
  • Fast time to image (<0.5 sec)
  • Low operating power, nominally 150mW (<160mW over full temperature range)
  • Low power stand-by mode
  • RoHS compliant
  • 32-pin socket interface to standard Molex or similar side-contact connector

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