Open-source smartphone lensometer: measures the power of eyeglass lenses (sphere, cylinder, axis, bifocal/progressive add) with an Android phone and a computer monitor. Experimental, for education and research.
android kotlin opencv computer-vision spectacles phase-unwrapping prescription ophthalmology glasses bifocal arcore optometry eyeglasses deflectometry fringe-projection lensometer lensmeter focimeter progressive-lenses fourier-transform-profilometry
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Updated
Oct 13, 2026 - C++