Specifying lenses for megapixel cameras
Gregory Hollows is director of machine vision solutions, Edmund Optics
Stuart W. Singer is vice president of Schneider Optics
Continuing advances in high-resolution sensors with higher pixel densities and smaller pixels are challenging optics manufacturers to produce lenses with increased performance. To understand how lenses can affect the performance of imaging systems, it is necessary to grasp the physics behind diffraction, lens aperture, focal length, and the wavelength of light.
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