Kent Optronics
Two-Color High Temperature IR Scene Projector

The BAT IR2 4300 is a two-color high temperature IR scene generator that displays dynamic video rate motion pictures in both Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR) with a high blackbody temperature of 4300°C.

Data Sheet

Infrared Scene Projector

The BAT IR2 4300 Two-Color High Temperature IR Scene Projector, developed by Kent Optronics, represents the most advanced animation tool in infrared scene simulation. It generates dynamic motion pictures in both the Mid-Wave Infrared (MWIR) and the Long-Wave Infrared (LWIR).

This 2-color IR bolometer is a stand-alone and turnkey instrument for users in the hardware-in-the-loop (HWIL) and IR sensor test and evaluation (T&E). It accepts rendered motion images from a rendering computer or sensor, radiometrically simulates the thermal pictures, and presents them to the user sensor.

Superior to the current state-of-the-art bolometer products, the BAT IR2 4300 features an unprecedented capability of reaching a blackbody apparent temperature (BAT) over 4,300°C, which breaks the 800°K BAT limit imposed by the most popular bolometer based on Resistive Emitter Array (REA). Increasing the illuminator power can increase the BAT further.

The instrument consists of a high power illumination engine, a high speed Liquid Crystal on Silicon (LCoS) display engine, and a variable aperture variable focal length optical projection engine (OPE). It uses standard video interfaces.

The illumination engine consists of one MWIR and one LWIR light sources. The light from the illumination engine is directed to the LCoS display engine via an optical relay train. The high power light sources enable the high BAT.

The display engine consists of two LCoS display panels: one for MWIR and one for LWIR. Each LCoS is a 512 by 512 array with individually addressed liquid crystal pixels. The thermal image is created by electrooptically modulating the optical phase of individual pixels such that the reflected light energy is dynamically modulated. The modulated imaging beam is coupled to optical projection engine.

The optical projection engine is built with reflective components to avoid refractive aberrations. It features variable aperture up to 15 cm (6") in diameter and variable image size up to 10 cm (4"). It projects the imaging beam directly onto the sensor that is under test.

The system’s outstanding performance is enabled by key innovations in our design and proprietary liquid crystal material - the result: >140 Hz frame rate, wide BAT dynamic range from ambient to 4300°C, and a low loss in both IR bands.

In addition to the BAT IR2 4300, we also offer a series of BAT IR products for different IR regions and temperatures:

  • Single color display in MWIR, LWIR
  • Single/Multi-color display in VNIR, MWIR & LWIR (new)
  • Multispectral Polarized Scene Projector (new)

The instruments provide a vital display tool for scene simulation in the Hardware-in-the-Loop (HWIL) and IR sensor test and evaluation (T&E). A demo is available upon request.

rendered image

LWIR thermal image

Rendered image
from computer

Captured LWIR thermal image at 10.6 μm
having a BAT as high as 1550°C

BAT IR2 4300 Specifications

Spectral bands MWIR and LWIR
Pixel image format 512 x 512 pixels
Maximum binary frame rate > 140 Hz
Amplitude dynamic range > 12 bits
Apparent temperature change MWIR: form lower than ambient temperature to > 1,500°C
LWIR: from lower than ambient to > 3,000°C
Clear aperture Up to 15 cm (variable)
Projected imaging beam Collimated
Projected image size Up to 10 cm x 10 cm (variable)