如果你把闪光灯打到你旁边或身后的墙上，相对于拍摄主体来说，此时的光源面积要比直接将闪灯打到主体上要大的多。
If you bounce the flash off a wall to the side of you, or behind you, then the source of light relative to the subject, is much larger than if you had shot with the flash straight on.
在线光源软阴影生成算法的基础上，作者提出了运用快速面积估计生成面光源的软阴影的算法。
Based on an algorithm of soft shadows for linear light, the author purposed an algorithm of soft shadows for area light by area approximation.
本研究利用微控制器作为控制单元，结合LED光源和传感器设计研制了一种便携式叶面积仪。
In this research, the portable leaf area meter is designed by combining microcontroller with light source LED and light sensor.
本实用新型击杀面积大，占用位置小，非常适合与节能灯形的引诱光源配套使用。
The utility model has large shocking area and takes up a small space, which is very suitable for cooperating with an energy-saving attracting light source to use.
此外，芯片的制作工艺也需要入射光线通过淀积在硅片上的电路，这使得光照度(光源照射在被照物体单位面积上的光通量)降低。
On top of that, the way chips are made requires the incoming light to pass through circuitry that has been deposited on to the silicon, reducing the level of illumination.
作为大面积背光源使用。
所述大面积石英玻璃片可用在光清洁设备中作为隔开光源部分和清洁室的窗口。
The quartz glass plate having a large area can be utilized, in a light cleaning device, as a window partitioning a light source section and a cleaning chamber.
所述大面积石英玻璃片可用在光清洁设备中作为隔开光源部分和清洁室的窗口。
The quartz glass plate having a large area can be utilized, in a light cleaning device, as a window partitioning a light source section and a cleaning chamber.
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