Nikon is investing ¥25 billion ($159 million) in two new buildings at its Tochigi site to expand lens manufacturing, with ...

Aim To determine if ‘Defocus Incorporated Multiple Segments’ (DIMS) spectacle lenses slow childhood myopia progression. Methods A 2-year double-masked randomised controlled trial was carried out in ...

Abstract: This article describes an electromagnetic objective lens positioner for applications that require millimeter scale vertical travel and wide bandwidth, such as Michelson interferometry, laser ...

I’ve had some great times with my Canon EOS M50 Mark II, which has the same hardware as the original model but with improved video features and eye-detection autofocus. It’s epic for content creators ...

The Canon EOS R50 isn’t the cheapest camera in the EOS R system range. That dubious accolade goes to the Canon EOS R100. But spend a little more on the R50 and you get a massively better camera with a ...

Abstract: Solving single objective real-parameter optimization problems, also known as a bound-constrained optimization, is still a challenging task. We can find such problems in engineering ...

This case series evaluates the visual outcomes of two trifocal intraocular lenses, the ZFR00V and TNFT00, in cataract surgery patients. Nineteen patients (38 eyes) were bilaterally implanted with one ...