The backlight module comprises a light guide plate and a light source device.

该背光模组包括一导光板及一光源装置。

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Optical element, light source device, optical head device and optical information processing unit.

光学元件，光源装置，光头装置以及光信息处理装置。

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Therefore, process of manufacturing the surface light source device is simplified to enhance productivity.

由此可以简化面光源器件的制造过程，提高生产率。

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One such device, coined Droplet, essentially redirects light from one source to another, while also serving as a physical interface for tablet-based tasks.

ENGADGET: Droplet and StackAR bring physical interface to virtual experiences, communicate through light (hands-on)

Until now, the existence of such a device -- which works by splitting light in a way that points to its source -- has only been hinted at in fleeting literary mentions.

ENGADGET: Alt-week 3.9.13: Sunstones, knotted vortices and a zero-g robot