If you’re reading Hackaday ... and instead must rely on magnifying glasses and loupes. [Mauro]’s project for the Hackaday Prize makes wearing these loupes and lenses even easier by adding ...

[3 Color & 6 Brightness Adjustable] This Glocusent reading light owns 3 useful color temperature modes: yellow(3000K), warm white(4000K) and cool white(6000K). Each neck light head owns an ...

Extra patient visits are needed with the Light Adjustable Lens. ORLANDO — The Light Adjustable Lens entails selecting candidates who are willing to take more time to reach the best outcomes ...

The most popular and well-known configuration of a 70-200mm lens is a 70-200mm f/2.8. These are the best choice, with their fast, constant f/2.8 aperture that gives you plenty of latitude to work in ...

Thanks to their special coating, these lenses also produce incredible lens flares when pointed directly at light sources ... it isn't as sharp as a large lens on a mirrorless camera).

Abstract: Large-element-spacing (LES) antenna arrays present an attractive proposition with their cost-effectiveness and simplified structures. However, they often encounter the challenge of ...

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However, current VLC systems suffer from limited bandwidth of off-the-shelf light-emitting-diodes (LEDs), and it is still challenging to realize a large number of parallel VLC channels for higher ...

Despite advances in modern technology, these mysterious ancient artefacts continue to baffle and intrigue experts.

For the best results, look for glasses with a relatively thick frame and large lenses that sit close to and cover the area around your eyes. How we test the best blue light blocking glasses To ...

It’s also remarkable for just how small and light it is, and how easy it is to use. That bulbous front element rules out conventional front-mounted filters, but on a 10mm full frame lens, what else ...

Four wooden tiles arranged in a square; image on them show the outline of a person being attracted to a magnet ...