EN
RayClouds Photoelectric Technology Co.,Ltd.
RayClouds Photoelectric Technology Co.,Ltd.

Glare Measurement Method in Lighting Spot

Theoretical calculation:

Based on the light distribution curve and the size of the lamps measured in the laboratory, the glare index under typical ideal lighting environment (such as lighting arrangement, room reflectance, etc.) is simulated by software. However, there is a big gap between theory and practice, and there is a big risk in this method.


Luminance measurement based on point-of-sight:

The traditional point-of-sight brightness meter is used to measure the brightness of the dizzy light source one by one at the observation position, and the ambient brightness is measured and converted by the illuminometer. The size and relative angle of the dizzy light source are obtained by length measurement, which wastes the time and the labor. More importantly, when the shape of the light source is irregular or the luminous surface is not uniform, the measurement accuracy will be greatly affected.


Measurement based on imaging brightness:

At present, it is considered as a simple and accurate method in the world, and CIE has also established TC 2-86, aiming to evaluate the glare index by using the brightness distribution measured by the imaging luminance meter. Although all the elements of glare index evaluation are obtained by imaging brightness measurement, there are also some requirements for the performance of imaging luminance meter, such as V (lambda) spectral matching, linearity, image distortion and so on. Common cameras are far from meeting the above requirements.

Related News
  • Intelligent Imaging Colorimetric Measurement System

    Intelligent Imaging Colorimetric Measurement System

    May 15, 2019The imaging colorimeter we are making can not only detect the chroma and uniformity, but also complete the defect detection through the image.China has become a global manufacturing factory! However, ...view
  • Color Measurement is no longer

    Color Measurement is no longer

    May 15, 2019Chromaticity, as its name implies, is the measurement of color. This measurement is often based on the visual physiology of the human eye, so it will have a certain "subjective" nature, and the measur...view
  • What Kinds of Luminance Meters are Common?

    What Kinds of Luminance Meters are Common?

    December 11, 2020In recent years, increasingly stringent testing of the brightness and colorimetric light sources and the need for rapid determination of faint light has led to the application of luminance meters. But...view
  • What Considerations Should be Taken into Account when Selecting an Ultraviolet-visible Spectrophotometer

    What Considerations Should be Taken into Account when Selecting an Ultraviolet-visible Spectrophotometer

    December 11, 2020UV-Vis spectrophotometers are specialized instruments that use UV spectrophotometry to analyze substances. For this reason, there are many classifications of this equipment in the market, and differen...view
  • Comparison of Color Measurement

    Comparison of Color Measurement

    May 15, 20191. Color measurementWhen comparing the chromatic aberrations of two color samples, the influence of absolute accuracy error of the color measurement instrument on the chromatic aberration belongs to h...view
  • Anti-blue Glasses in the Market

    Anti-blue Glasses in the Market

    May 15, 2019Anti-blue glasses market is mixed with a wide variety of fish and dragons. In 2013, professional digital protective goggles were more popular in the market. According to the absorption design of the l...view


LATEST_NEWS



Contact