FLIR Boson® - Lensless Core
Compact Shutterless LWIR Thermal Camera
The Boson® longwave infrared (LWIR) thermal camera module sets a new standard for size, weight, power, and performance (SWaP). It utilizes FLIR infrared video processing architecture to enable advanced image processing and several industry-standard communication interfaces while keeping power consumption low. The 12 µm pitch Vanadium Oxide (VOx) uncooled detector comes in two resolutions – 640 x 512 or 320 x 256. It is available with multiple lens configurations, adding flexibility to integration programs.
With a weight as low as 7.5g and a camera body as small as 21 x 21 x 11 mm, the Boson represents an industry-leading reduction in SWaP with no reduction in performance. Advanced embedded processing and video analytics, as well as software-customizable functionality, give this small camera big capabilities, including integration with auxiliary sensors such as third-party cameras, GPS, and IMU.
DRAMATIC REDUCTION IN SIZE, WEIGHT AND POWER (SWaP) WITH NO REDUCTION IN PERFORMANCE
A full-featured VGA thermal camera module at less than 4.9cm3.
- 21 x 21 x 11 mm camera body and weight as low as 7.5g.
- Low power consumption, starting at 500 mW
- 12 µm pixel pitch VOx microbolometer with 320 and 640 resolutions.
- Rugged construction and highest temperature rating -40 °C to 80 °C.
POWERFUL INFRARED VIDEO PROCESSING ARCHITECTURE
FLIR infrared video processing with embedded industry-standard interfaces empowers advanced processing and analytics.
- Includes embedded algorithms for noise filters, gain control, blending, and more.
- Software-customizable functionality for video processing and power dissipation requirements.
- Built-in support for physical and protocol-level interface standards.
WIDE CONFIGURABILITY FOR FASTER DEVELOPMENT AND LOWER COST-TO-MARKET
Unprecedented integration flexibility for fast, affordable developments.
- Customized applications through FLIR-trusted third party developers.
- Mechanical/electrical compatibility across all versions.
- Variety of hardware and image processing integration to fit OEM requirements.
|Spectral Band||LWIR | 7.5 µm – 13.5 µm|
|Resolution||640 x 512 Pixels|
|Sensitivity/NEdT||<40 mK (Industrial) | <50 mK (Professional) | <60 mK (Consumer)|
|Pixel Pitch||12 µm|
|Weight||7.5g without lens (configuration dependent)|
|Dimensions (L x W x H)||21 × 21 × 11 mm without lens|
|ELECTRICAL & MECHANICAL|
|Control Channels||UART or USB|
|Peripheral Channels||I2C, SPI, SDIO|
|Video Channels||CMOS or USB2|
|IMAGING & OPTICAL|
|Full Frame Rate||60Hz baseline; 30Hz runtime selectable|
|Image Orientation||Adjustable (vertical flip and/or horizontal flip)|
|Lens Options||640 x 512 Lensless|
|Non-Uniformity Correction (NUC)||Factory calibrated; updated FFCs with FLIR’s Silent Shutterless NUC (SSN™)|
|Scene Range [high gain]||to +140 °C (high)|
|Scene Range [low gain]||+500 °C (low)|
|Slow Frame Rate||≤9Hz available|
|Snapshots||Full-frame snapshot, SDIO interface to support removable media|
|Sensor Technology||Uncooled VOx microbolometer|
|Symbology||Re-writable each frame; alpha blending for translucent overlay|
|Continuous Digital Zoom||1x to 8x zoom|
|Operational Altitude||12 km (max altitude of a commercial airliner or airborne platform)|
|Operating Temperature Range||-40 °C to 80 °C|
|Shock||1,500g @ 0.4 msec|
|Input Voltage||3.3 VDC|
|Power Dissipation||Varies by configuration; as low as 500 mW|
|Precision Mounting Holes||Four tapped M1.6 x 0.35 (rear cover). Lens support recommended when lens mass exceeds core mass.|
FLIR Boson Frequently Asked Questions
The table below shows sensitivity as a function of configuration, normalized to f/1.0. The specified requirements are when operating in the high-gain state at 20C, with the averager disabled, in free-running mode, imaging a 30C background. (NEDT values with averager enabled are approximately 20% lower than shown in the table.)
For the 320 configuration, NEDT requirements in low-gain state are 250% of the values shown in Table. (Only industrial and professional-grade configurations provide a low-gain state.)
For the 640 configuration, NEDT requirements in low-gain state 300% of the values shown in the table.
TEMPORAL NEDT IN HIGH-GAIN STATE
NEDT values shown are acceptance-test limits representing the lensless configuration with an f/1.0 aperture installed. With a lens installed, test limits are scaled by (f/#)2 / τ
The FLIR Boson requires at least one interface board to allow Power and acquire Video from it's high-density connector.
The most popular board in our product list is the Low Profile VPC module. It allows for power input, streaming USB and composite analog video as well as controlling the cameras settings.
A complete list of accessories are available at: https://www.oemcameras.com/boson_accessories.
To choose the proper FOV and resolution we recommend the Field of View tool here: https://www.oemcameras.com/fov_tool
For video acquisition and control you will need to use the Boson Controller GUI 3.0 available from Teledyne FLIR.
With the RHP Boson interface boards, you may also use the RHP Boson GUI.
Note that these calculations become less accurate at very close ranges, or for very wide field of view lenses.
All Boson thermal camera modules feature FLIR infrared video processing architecture, noise reduction filters, and local-area contrast, utilizing a high sensitivity 12-micron pixel pitch detector that provides high-resolution thermal imaging in a small, lightweight, and low-power package. The image processing capabilities accommodate industry-standard communication interfaces, including visible CMOS and USB.
Boson Radiometric cameras bring absolute temperature measurement capabilities for quantitative assessment and analysis across commercial and industrial uses. The Boson Radiometric models feature radiometric temperature measurement, meaning the cameras capture the temperature data of every pixel in every frame of a scene. This makes them ideal for implementation with unmanned aerial systems, firefighting, automotive, security, surveillance, and industrial inspection.
Configurations of Boson which are radiometric capable feature the ability to output a “temperature stable” output or a “temperature linear” output. In the former case, the 16b output is intended to be linear with input flux (i.e. target irradiance) and independent of the camera’s own temperature. In the latter case, the input flux is translated to absolute temperature (Kelvin). That is, the output is linear with scene temperature. For temp-linear output, parameters such as target emissivity atmospheric transmission can be adjusted to reflect current imaging conditions.
Standard Boson or Radiometric Bosons
Radiometry Disabled (T-linear Enable/Disable has no effect on output): 16b output varies with both scene flux and camera temperature.
Radiometry Enabled, T-linear Disabled:
Temperature-stable output: 16b output value is intended to be proportional to scene-flux only and independent of the camera temperature. That is, when imaging a given scene, the output image is stable even if the camera’s temperature varies. By comparison, output varies significantly with camera temperature when radiometry is disabled.
Radiometry Enabled, T-linear Enabled:
Temperature-linear output: 16b output value is intended to be directly proportional to scene temperature. In high-gain state, the 16b output value corresponds to scene-temperature in Kelvin multiplied by 100, and in low-gain state, it corresponds to Kelvin multiplied by 50. For example, expected output in high-gain state when imaging a 20C BB is [(20C + 273.15)] * 100 = 29315. In practice, radiometric error prevents an output which corresponds perfectly with scene temperature.
Radiometric accuracy provides ±5 °C (±8 °F) or ±5% temperature measurement accuracy and include a Spot Meter Accuracy software feature that provides an assessment of how accurate a given temperature measurement appears in the scene.
Some of the benefits of advanced radiometric cameras include:
- Improved accuracy (typical performance on the order of +5 Co or 5% in high-gain state, varying slightly across the full operating temperature range)
- Moveable and resizable spot-meter (coordinates can be user-selectable to any location on the array)
- Additional spot-meter data (average, standard deviation, minimum, and maximum value)
- Digital data linear in scene temperature (in real-time operation, the pixel values in the digital data correspond to the temperature of the scene)
- Detailed temperature information (users derive temperature information per pixel from objects in the scene)
- Temperature precision (allows external scene parameters to be compensated for emissivity– a measure of the efficiency of a surface to emit thermal energy relative to a perfect blackbody source– and window transmission, to more accurately determine temperature)
- Image Metric Feature (enables users to query the camera for scene temperature data via serial command, such as maximum, minimum, and standard deviation for user-defined regions).