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VCSELs, contrary to convention

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SUSAN PETRIE, SENIOR EDITOR, [email protected]

It’s easy to be impressed by a killer app. Apple’s iPhone X, for example, is equipped with a TrueDepth camera and Face ID, which are creating new baselines in biometric security. ExtremeTech describes how TrueDepth works: “[It] starts with a traditional 7 MP front-facing ‘selfie’ camera. It adds an infrared emitter that projects over 30,000 dots in a known pattern onto the user’s face. Those dots are then photographed by a dedicated infrared camera for analysis. There is a proximity sensor, [and] an ambient light sensor helps the system set output light...Read full article

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