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。
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.
这些电梯由地面发射的激光束驱动，接收装置则是位于机械上的光伏单位——正如太阳能电池板中使用的一样——而这个过程被称做“能量束驱动”（power beaming）。
They are powered by laser beams on the ground firing at photovoltaic cells on the vehicles – like those used in solar panels – in a process called “power beaming”.
实测了神光装置中激光系统末级输出能量、激光系统前部和中部定点发射能量及激光系统放大的自发辐射能量。
We have measured the energy outputs from the final stage and from the front and middle stages of this system, as well as the energy of amplified spontaneous emission from the system.
如图2所示，光的一部分将被朝向发光装置102反向发射，在此它将被二向色滤光片反射用于再循环。
As shown in FIG. 2, a portion of the light will be emitted back towards the light emitting device 102, where it will be reflected by the dichroic filter for recycling.
所述磷光体被从所述半导体装置发射的光激发而发射光，所述光具有不同于由所述半导体装置发射的光的波长。
The phosphor is excited by the lights emitted from the semiconductor devices to emit light having a wavelength different from those of the lights emitted from the semiconductor devices.
照明装置，包括一发光组件，用于发射出光束；
A lighting device, includes: a luminescent module, which is used for sending out the light beam;
照明装置，包括一发光组件，用于发射出光束；
A lighting device, includes: a luminescent module, which is used for sending out the light beam;
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