The physical properties of the material help determine which wavelengths of light will be perfectly absorbed; for the initial silicon device the sweet spot is in the near infrared.

材料的物理性质有助于确定哪一种波长的光可以被完全吸收，对于最初的硅器件来说，吸收点在近红外。

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A ring of LEDs projects infrared light into the space immediately in front of the user so a camera in the device can interpret gestures.

一束由发光二极管发射出的红外线光立刻进入到使用者眼前的空间，这样一个小型摄像机装置，可分析人们的手势轨迹。

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As the getaway car snags on the speed-bump-like device, infrared sensors detect the vehicle's heat and deploy another set of tendrils that lasso the drivetrain, stopping the car in its tracks.

如果逃逸者想对抗这套路面减速装置，红外感觉装置会检测到车辆的热源并释放另一套拉索死死抓住传动系统，把车停下来。

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The companies used an unspecified infrared-equipped Palm device and a Toshiba Libretto, which beamed requests for check authorizations to a point-of-sale terminal, in this case a VeriFone Tranz 330 that was retrofitted with an infrared device from ACTiSYS and a custom cable from CrossCheck.

CNN: Infrared payment could replace credit and debit cards

At the head of the device is an infrared sensor, but forget about using it as an IR-blaster like the Galaxy Tab 7.0 Plus, it's only designed to work with 6100-series handsets and compatible printers.

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Just walk up to another device and beam your infrared connector and -- bingo -- you're linked and talking.

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