Unique Motion sensor light Including Pure white and Warm light---Press the button to change the lighting mode between Pure white and Warm white.

独特的运动感应灯包括纯白色和暖光---按按钮可以更改纯净白，暖白之间的照明模式。

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A sensor channels the light signal along an optical fibre.

传感器沿光导纤维输送光信号。

《牛津词典》

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So to be clear, we expect most students to very comfortably pursue the standard edition of the P set, but for this particular P set, and we have about 150 or so of these out on the hallway, and we'll have them at office hours throughout the coming week--this is a little logic board ; with lots of sensors; the sound sensor, a light sensor, a little joystick and the like.

我希望我们大多数同学,研究问题集的标准版本，可编程版有个特殊的问题集，我们会在接下来的几周里，在办公时间为大家做解答,这是个小的逻辑板,上面有很多传感器;,包括声音传感器，光传感器，小操作杆等。

哈佛公开课 - 计算机科学课程节选

Dorset Council contractor SSE Contracting is now changing the light sensor on each light to a timed version in the town's quiet roads.

BBC: Swanage street lights switch-off to save ?150,000 a year

When nearly 30 years ago Dr. Jacob Fraden invented an ear thermometer working on this second principle, the infrared light sensor was so large that he needed a narrow gold-plated reflective tube to channel the light from the ear drum to the sensor.

FORBES: Body temperature.

The lower-end AX100U adds an ambient light sensor that adjusts the output on-the-fly to help counter-act the light in the room.

ENGADGET: Panasonic @ CEDIA - 2 new HD projectors - UPDATE HD