Efficient gravitational lens optical scalars calculation of black holes with angular momentum
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz3615
Abstract: We provide new very simple and compact expressions for the efficient calculation of gravitational lens optical scalars for Kerr space–time, which are exact along any null geodesic. These new results are obtained recurring to well-known… read more here.
Keywords: calculation black; optical scalars; lens optical; gravitational lens ... See more keywords
Optical camera with liquid crystal autofocus lens.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.029945
Abstract: A mobile phone camera with an innovative electrically tunable liquid crystal lens (TLCL) concept is demonstrated. We first report the comparative theoretical and experimental analyses of the performance of a traditional "modal control" TLCL versus… read more here.
Keywords: camera; liquid crystal; optical camera; autofocus ... See more keywords
Intelligent evaluation for lens optical performance based on machine vision.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.463148
Abstract: Optical performance evaluation is a critical process in the production of collimating lenses. However, the current visual inspection of lens light-spot images is inefficient and prone to fatigue. Intelligent detection based on machine vision and… read more here.
Keywords: evaluation; based machine; machine vision; lens optical ... See more keywords