What does lp/mm measure in imaging system specifications?

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Multiple Choice

What does lp/mm measure in imaging system specifications?

Explanation:
Spatial resolution is what this is about—the imaging system’s ability to distinguish fine detail. lp/mm stands for line pairs per millimeter and measures how many alternating dark and light line pairs can be resolved within one millimeter of image. A higher value means finer detail can be seen, reflecting the system’s resolving power, including optics, sensor sampling, and processing. It isn’t about brightness or light quantity, so lumens per millimeter, luminance per millimeter, or photons per millimeter don’t describe resolution.

Spatial resolution is what this is about—the imaging system’s ability to distinguish fine detail. lp/mm stands for line pairs per millimeter and measures how many alternating dark and light line pairs can be resolved within one millimeter of image. A higher value means finer detail can be seen, reflecting the system’s resolving power, including optics, sensor sampling, and processing. It isn’t about brightness or light quantity, so lumens per millimeter, luminance per millimeter, or photons per millimeter don’t describe resolution.

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