By improving the optical encapsulation, the luminous flux of LED can be improved greatly.
经过光学封装技术的改善，可以大幅度地提高大功率LED灯串的出光率（光通量）。
Please take Luminous Flux as standard parameter, Luminous Intensity is only for reference.
请以光通量为亮度标准，发光强度仅供参考。
It is helpful to reducing the uncertainty of measuring LEDs luminous flux with integrating spheres.
效应的校正有助于降低用积分球测量光通量的不确定度。
The measurement of the luminous flux of UHP (Ultra High Power) light source is described in this paper.
本论文研究超高压汞灯——UHP灯的光通量测量方法。
Luminous flux, color temperature and color rendering property are the three main index in light source.
光通量、色温和显色性是光源的三大重要指标。
The luminous intensity, luminous flux and color coordinate of high-power white LED have relations with different place.
研究了在蓝光芯片加黄色荧光粉制备白光LED方法中，色坐标位置对光通量的影响。
Disclosed is a measurement system of LED instant luminous flux driven by PWM, which belongs to the field of measurement.
一种PWM驱动方式下LED瞬时光通量的测试系统，属测量领域。
High-purity imported aluminum reflector is used to effectively improve the reflectivity and ensure the output of luminous flux.
采用高纯度进口铝反射罩，有效提高了反射率，并确保了光通量的输出。
The life of white LED using epoxy resins to mix fluorescent powder is shorter than silica gel, hut initial luminous flux is higher about 25 %.
使用环氧树脂作为配粉胶比用硅胶寿命短，但初始光通量相对高出25％。
The width, height, brightness of the screen and the luminous flux, focus of the cineprojector are important factors of cinema auditorium design.
银幕的宽度、挂高、亮度，以及放映机的光通量、焦距等都是电影观众厅设计的重要因素。
The uncertainty evaluation and data processing methods for the CCPR key comparisons of luminous intensity and luminous flux unit are introduced.
分析了大功率白色发光二极管的发光强度（即光强）、光通量和色坐标与测量位置的关系，提出了解决的方法。
At the same time, the leakage current was minimum and light output was maximum. Then the leakage current increased and luminous flux reduced for green LED.
同时，两种LED的反向漏电也最小、光通量最大，随后绿光led的反向漏电增加较快且光通量衰减较快。
Conclusion The luminous flux determination method for assessing Eustachian tube function is sensitive rapid, and objective, so it is a hopeful appraisal measure.
结论耳咽管功能的光通量测定方法灵敏、迅速和客观，是一种很有希望的判定手段。
By applying the presented approach, the positioning accuracy of the existing system can be significantly improved to obtain the theoretical maximum luminous flux.
这种方法可以显著提高现有系统的定位精度，获得理论最大的光通量。
Photometers are specifically designed to measure emitted, reflected or transmitted light in photometric terms of luminous flux, luminance, illuminance or luminous intensity.
光度计是专门用于测量发射，反射或透射光的光通量，亮度，照度或发光强度等。
This paper described the principle, apparatus and correction methods of a new method of realizing the total luminous flux scale by using integrating sphere. The results are also presented.
本文介绍一种用积分球实现总光通量标的新方法的原理、实验装置和修正方法，以及所得到的结果。
This paper described the principle, apparatus and correction methods of a new method of realizing the total luminous flux scale by using integrating sphere. The results are also presented.
本文介绍一种用积分球实现总光通量标的新方法的原理、实验装置和修正方法，以及所得到的结果。
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