Many friends in the photoelectric circle will ask a question: What is the objective technical reference for the imaging quality of optical lenses? Let’s talk about this topic today!
The MTF imaging curve is measured by the lens manufacturer in an objective and rigorous testing environment, and is an objective technical reference for the imaging quality of the lens. The resolution and contrast of the lens can be analyzed through MTF. The larger the area under the MTF imaging curve, the better the overall performance of the lens, and it can also reflect the imaging quality of the imaging system in each frequency band.
The modulation transfer function of an optical system is expressed as the ratio of the image and object modulation degrees at a given spatial frequency
where the modulation degree M is defined as:
The picture is the average value of the MAX and MIN grayscale values of the image, respectively, and the picture is the average value of the MAX and MIN grayscale values of the object, respectively.
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The Links: LM215WF3-SLN1 N089L6-L03
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