Airy disk brilliance (the brightness of a point-source stellar image) is proportional to the fourth power of aperture.
艾里斑的亮度(点光源恒星的图像亮度)正比于孔径尺寸的四次方。
This isn't a liable solution, because when the billboards turn to follow the camera, their Angle relative to the light source will change, and so will their brightness.
这不是一个主观的解决办法，因为当粒子块朝向摄像机时，他们与光源的角度会改变，他们的亮度也会随之而变。
Remember earlier when I said that high brightness LED point source lighting has become affordable?
还记得我前面提到，高亮度led点光源照明已经可以负担得起了吗？
The number of photons collected by a pixel, and therefore the pixel value, is a measure of the flux, and thus of the brightness of the light source.
一个像素所收集到的光量子数，也就是像素值，是测量的光通量的方式，即反映了光源的亮度。
Since We know why the moon shines so magnificently and discovered the source of her brightness, why not follow suit and try to retch up with the sun?
既然我们了解月亮之所以能如此辉煌，并发现了她的光源所在，为什么我们不仿效月亮去追赶太阳呢？
Source flux densities, associated one-dimensional source sizes, heights and brightness temperatures for these regions are given.
得到了一些射电源的流量、一维大小、高度和亮温度。
The product is a new energy-saving lighting source, with the performance of high brightness, low attenuation, long lifetime and high reliability.
本产品是一种新型高功率节能光源，它具有亮度高、衰减小、寿命长、可靠性高等优点。
Constant current source can avoid the fluctuations of output current due to the fluctuations of input voltage, and maintain the brightness of LED.
恒定电流源可以避免因输入电压的波动使LED的驱动电流波动并维持LED的亮度不变。
Because of brightness and directionality, laser has become into an excellent projection light source.
由于激光的高亮度和极好的方向性，使之成为非常理想的投影光源。
XH-SBR SMD LED fluorescent light with high brightness SMD LED AS light source lamp beads , green , no flicker , long life , high color rendering index , color temperature optional wide range .
SBR贴片式系列LED日光灯采用高亮度贴片式LED灯珠为光源，绿色环保、无频闪、寿命长、显色指数高、色温可选择范围宽。
The current can be used to measure the Brightness of the light or as a source of power, as in a solar cell.
该电流可以用来测量光的亮度或当作电源，就像太阳电池。
Field emission light source has drawn wide attention for its low power consumption, high brightness, long working-life and non-pollution.
场发射光源具有低功耗、高亮度、长寿命、无污染等优点，近年来成为人们研究的热点。
Based on the characteristics of low-power MSP430 MCU, the paper proposes an idea that constant current source control the brightness of LED.
基于低功耗MSP430单片机的特点，提出一个用数字化恒流源来控制LED灯光可调的设计思路。
Finally, experiments are done by using a red high brightness LED to be the partial coherent light source.
最后，用红色高亮led作为准单色光源进行了验证实验。
Finally, experiments are done by using a red high brightness LED to be the partial coherent light source.
最后，用红色高亮led作为准单色光源进行了验证实验。
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