Glossary

CCTV

Closed Circuit Television is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.

Digital

Digital describes electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive.

Gyro

Gyro Stabilization is a way to stabilize a camera by sensing for external movements of the system, and then, countering them with opposite movements to the camera controls in real time. Creating a stable platform for imaging.

InSb

InSb stands for Indium Antimony (or Antimonide). It is a type of semiconductor. More specifically a type of Microbolometer sensor used in some Cooled Thermal Cameras.

MCC

Acronym for Mobile Command Center (sometimes refered to as MCS or Mobile Command Station)

Microbolometer

A microbolometer is a specific type of bolometer (a very sensitive digital thermometer where its electrical resistance varies with temperature) used as a detector in a thermal camera.

SWaP

SWaP is an Acronym commonly used in the security/aerospace industries. It stands for Size Weight and Power.

What is a Thermal Cameras F-Stop and why is the F Number so important for Infrared Surveillance Cameras?

A FLIR (Forward Looking Infrared Camera) Thermal Cameras f‑number (ƒ/#) or f‑stop refers to the ratio of a lens’s focal length to its aperture’s diameter and indicates the amount of IR energy (Hear) coming through the lens to the MWIR or LWIR infrared sensor.  IR GE lenses are typically specified with their maximum aperture at the max zoom and focal length. 

 

What is F-stop and why is F Numbers of the lens so important for Thermal Infrared Cameras?

A FLIR (Forward Looking Infrared Camera) Thermal Cameras f‑number (ƒ/#) or f‑stop refers to the ratio of a lens’s focal length to its aperture’s diameter and indicates the amount of IR energy (heat) coming through the lens to the MWIR or LWIR infrared sensor.  IR GE lenses are typically specified with their maximum aperture at the max zoom and focal length. 

What is LiDAR?

LiDAR is an acronym of "Light Detection And Ranging" or "laser imaging, detection, and ranging"] LiDAR sometimes is called 3-D laser scanning, it is essentially a special combination of a 3-D scanning.

What is the importance of Thermal Cameras F-Number and how does that impact an Infrared Cameras NEdT Sensitivity

A FLIR (Forward Looking Infrared Camera) Thermal Cameras f‑number (ƒ/#) or f‑stop refers to the ratio of a lens’s focal length to its aperture’s diameter and indicates the amount of IR energy (heat) coming through the lens to the MWIR or LWIR infrared sensor.  IR GE lenses are typically specified with their maximum aperture at the max zoom and focal length.  An IR cameras sensitivity can be defined by its NEdT Noise Equivalent Temperature Difference which is often measured in milli-Kelvins (thousandths of a degree) and is determined by the thermal cameras sensor sensitivity and the F stop of the lens it is the net performance for infrared imaging cameras just as lux is used to measure the sensitivity of visible cameras.

What is the relationship between a Lens F-number (Aperture to Focal Length) And Sensitivity & Performance of a Thermal Infrared Camera?

A FLIR (Forward Looking Infrared Camera) Thermal Cameras f‑number (ƒ/#) or f‑stop refers to the ratio of a lens’s focal length to its aperture’s diameter and indicates the amount of IR energy (heat) coming through the lens to the MWIR or LWIR infrared sensor. IR GE lenses are typically specified with their maximum aperture at the max zoom and focal length and for uncooled thermal cameras are the biggest factor to the IR cameras overall sensitivity.