FOV
The angular extent of the scene visible through a particular lens and detector.
What it means
Field of view describes scene coverage as an angle, normally with separate horizontal and vertical values. It depends on detector size and lens design.
For a rectilinear first estimate, FOV = 2 × atan(sensor size / (2 × focal length)). Lens distortion and the actual optical design can make a calculated estimate differ from the published specification.
A 640-pixel, 12 µm detector with a 15 mm lens gives an ideal horizontal estimate of about 28.7°.
In practice
Use the specified horizontal and vertical FOV for the ordered lens when freezing a mechanical or mission requirement.
Open the thermal imaging calculator ↗ to explore field of view and geometric scene coverage.
Keep exploring
Related product resources
Continue with an Engineering Guide ↗
Sources & further reading
- AeroMini 640 Non-radiometric Product Specifications V1.0.0.pdf
- AeroMini 640 Radiometric Product Specifications V1.1.0.pdf
- SuperMini 640 Product Specifications V1.0.0.pdf
- SuperMini 640T Product Specifications V1.0.0.pdf
Concept explanations are general. Use the matching product, lens, interface board and firmware documentation for the delivered configuration.
