Optical Engineering & Camera Engineering Technical Blog
Lens selection guides, imaging fundamentals, and machine vision engineering references written by the Commonlands optical engineering team in San Diego.
Showing articles tagged Optical Performance (6 articles) · Clear filter
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Optical PerformanceWhat Is a Telecentric Lens?
What a telecentric lens is: object-space telecentricity, how it removes perspective error for gauging, and low-distortion alternatives.
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Optical PerformanceWhat Is a Low Distortion Lens?
What a low distortion lens is: barrel vs pincushion vs TV distortion, why it matters for measurement, and how to spec distortion in machi...
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Optical PerformanceStray Light in Machine Vision
Control stray light in machine vision: veiling flare, ghosting, and glare, plus baffles, BBAR anti-reflection coatings, and lens-hood fixes.
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Optical PerformanceSpatial Resolution in Machine Vision
Spatial resolution in machine vision: mm per pixel, minimum detectable feature size, the diffraction limit, and the Airy disk explained.
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Optical PerformanceLens Aberrations in Machine Vision
The lens aberrations that limit machine vision: field curvature, astigmatism, chromatic and spherical aberration, how each degrades image...
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Optical PerformanceHow to Read MTF Curves
How to read MTF curves: MTF vs spatial frequency and vs field, sagittal and tangential, Nyquist matching by pixel pitch, and design vs me...
