Infrared Optics
All articles filed under Infrared Optics — 10 articles.
How Lens Focal Length Affects Detection Range
Learn how lens focal length affects detection range in infrared modules, including IFOV, pixel pitch, aperture, scene contrast, and OEM test trade-offs.
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Does a Longer Infrared Lens Focal Length Always See Farther?
Infrared lens focal length alone does not define range. Learn how IFOV, pixel pitch, F-number, resolution, atmosphere, target size shape imaging.
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Focal Length and Field of View in Thermal Cameras
Understand focal length and field of view in thermal cameras for OEM lens selection, target coverage, pixel sampling, and system trade-offs.
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How to Choose 12μm vs 17μm Pixel Pitch?
How to choose 12μm vs 17μm pixel pitch in thermal imaging modules by comparing FOV, focal length, IFOV, range, optics size, NETD, and system cost tradeoffs.
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What Is the Difference Between Infrared Detection, Recognition, and Identification Range?
Infrared detection range, recognition range, and identification range explained with Johnson criteria, pixel count, focal length, target size.
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Germanium vs Chalcogenide Infrared Lenses
Compare germanium vs chalcogenide infrared lenses for LWIR and MWIR modules, covering key transmission, thermal drift, molding, cost, and OEM trade-offs.
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How Far Can Thermal Imaging Really See?
Thermal imaging range depends on target size, focal length, pixel pitch, NETD, and atmosphere. Learn how to estimate detection, recognition, and ID distance.
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What Is an Infrared Lens?
An infrared lens transmits IR radiation onto a focal plane array. Learn how material choice, focal length, and F-number shape thermal imaging system performance.
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Infrared Optics Primer: Focal Length, F-number, and Field of View
A practical optics reference for EO/IR system engineers — how focal length, F-number, and FOV interact in infrared imaging systems, with worked examples.
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