This paper introduces to use interspace light screen instead of paper target to realize the real time acquiring of pill coordinate.

采用空间光幕代替纸靶来实现对弹丸目标立靶坐标的实时获取。

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In this paper, an infrared safety device is developed to fit the for - ging press mechanism. The device has the advantage of quick action, square light screen and breakdown self check.

本文研制设计了适合冲压机械的红外光安全装置，此装置具有动作速度快、矩形光幕、故障异或逻辑自检等优点。

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Light behind the cloth screen illuminates the colorful puppets for the people watching on the other side.

VOA: special.2009.09.23

Amazon's light guide technology precisely diffuses the light across the screen and only requires four LEDs to light the entire screen (unlike LCD screens which can use up to 50 LEDs).

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The light itself comes out of four LEDs that pass through a fiber optic glass designed to distribute the light evenly throughout the screen.

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The company is in the process of holding an expo in Tokyo, where they've lined up some leading Japanese manufacturers to show off their latest gear, along with concept products that will never see the light of an LCD screen.

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