luminous flux

1. Measure the relative spectral power distribution P(λ), chromaticity coordinate, correlative color temperature, rendering index, color difference, peak wavelength, luminous flux, etc.
   相对光谱功率分布，色品坐标，相关色温，显色指数，色容差，峰值波长，光通量等。
2. 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。
3. The brightness or luminance of an object is defined as the luminous flux emitted per unit area of the object into unit solid angle.
   物体的亮度或发光率定义为物体面积发射到单位立体角内的光通量。
4. The life of white LED using silver glues is longer than using epoxy resins, but initial luminous flux is much lower by1/ 3.
   使用银浆固晶比用环氧树脂寿命长，但初始光通比环氧树脂低近1／3；
5. Lumen: The unit for measuring luminous flux. One lumen is the flux emitted in one solid angle by a point light source of one candela.
   流明：量度光通量的单位。1流明是由1烛光的点光源在1立体角内所发出的通量。
6. 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。
7. It is helpful to reducing the uncertainty of measuring LEDs luminous flux with integrating spheres.
   自吸收效应的校正有助于降低用积分球测量光通量的不确定度。
8. Study on LED ′ S luminous flux measurement using a compound parabolic concentrator
   基于复合抛物面收集器的LED光通量测量的研究
9. 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。
10. A New Design for Realizing the Absolute Determination of Luminous Flux Standard and Accurate Measurements of High Luminous Flux
    实现光通量绝对测量和大光通量精密测试的新设计
11. A measure of luminous flux per unit area.
    测量单位面积光通量的单位。
12. The scattering luminous flux calculation of off-axis spherical particle to Gauss beam
    离轴球形粒子对高斯波束的散射光通量的计算
13. The lighting effect rate are higher, Ra are very well, similar The Sunshine and long life, High Luminous Flux.
    特点：发光效率高，显色性好，近似于日光，寿命长，光通量高。
14. They create a uniform value of luminous flux due to the high frequency used.
    由于使用高频，电子镇流器产生均匀的光通值。
15. Through measuring lighting performance of the light-pipe on three typical weathers in summer, the luminous flux and indoor illumination distribution have been obtained.
    通过比较分析证明，季节变化对光导管的光传输量的影响很大，太阳高度角于室内照度分布的影响也很大。
16. 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）。
17. The calculational methods of luminous flux 、 intensity and illumination in luminaire design are presented.
    给出了灯具设计中光通量、光强和照度的计算方法；
18. In this paper, based on the discussion of light source and blackbody radiation and their spectral distributions, several photometric concepts such as luminous energy, luminous flux, luminous intensity, luminous flux density, and luminance are introduced.
    介绍了一般光源以及作为光度学基础的黑体辐射及其光谱分布的基本规律，并在此基础上介绍了光能量、光通量、发光强度、光通量密度、亮度等光度学相关概念。
19. In this paper, we analyse some measurement errors in surface roughness measuring with optical fibre transducer and present a method to calculate the luminous flux output from the transducer.
    本文从理论上对光纤传感器测量表面粗糙度时的多种测量误差进行了分析，建立了一种对输出光通量的计算分析方法。
20. The Analysis of Fluorescent Lamp Luminous Flux Fluctuation
    荧光灯光通量波动分析
21. The basic concepts, measurment methods and mutual relationship of radiant flux and luminous flux are discussed.
    讨论了辐射通量和光通量的基本概念、测量方法及相互之间的关系。
22. This paper studies on the real-time measurement of chroma, luminous flux and optical medium based on spectrum measurement technique.
    本硕士论文基于电子扫描光谱快速测量技术的对其色度、光通量、薄膜特性测量技术进行了讨论和研究。
23. The paper pointed out the pathogeny which affect people's health, analyzed the relationship between luminous flux and particle size for single particle.
    文中指出了影响人体健康的致病因子，分析了单个微粒的光通量和粒径之间的关系。
24. 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。
25. The theoretical formulas of luminous flux and photon rate are derived.
    文中导出了光通量与光子速率的理论计算公式；
26. The luminous intensity, luminous flux and color coordinate of high-power white LED have relations with different place. We analyze the factors, and bring forward solving method.
    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。
27. Optical system transmissivity refers to the ratio between incident luminous flux and emergent luminous flux of optical instruments, and it reflects the optical system of energy losses and it is one of the important norm in optical system test.
    光学系统透过率是指光学仪器的出射光通量与入射光通量的比值，它反映了光学系统的能量损失，是光学系统测试的重要指标之一。
28. Among the many technical indexes of LED, the total luminous flux is one of the most important.
    在LED的诸多技术指标中，总光通量是其中最重要者之一。
29. In traditional optical systems, the usual approach to extend the depth of field is to reduce the relative aperture, but this will decrease luminous flux and resolution of the optical system, and finally have an effect on details of the image.
    在传统光学系统中，为了扩大系统的景深，通常的做法是缩小相对孔径，但这会降低光学系统的光通量和分辨率，最终影响成像的细节。

noun

1. the rate of flow of light energy