Type C goniophotometer for LM-79 luminous intensity measurement

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When measuring the luminous intensity of a light source in accordance with the LM-79 standard, a goniophotometer of type C is the instrument of choice. Candelas are often used as a common unit of measurement for luminous intensity, which is defined as the quantity of light that is emitted in a certain direction (cd).

The LM-79 standard offers a complete set of standards and processes for assessing the photometric and electrical properties of solid-state lighting (SSL) devices. These characteristics include lumen output, color rendering index, and power consumption. The use of a Type C goniophotometer, which is a highly accurate and precise instrument that was created expressly for this kind of measurement, is required for compliance with the standard since it is the method of choice for determining the luminous intensity of a light source.

A goniophotometer of type C determines the luminous intensity of an object by pointing a light source in the direction of a detector and determining the quantity of light that is captured by the detector. The device spins the light source and detector in order to measure the luminous intensity at a variety of various angles. This enables the instrument to provide a comprehensive and precise evaluation of the light output from the source.

When measuring the luminous intensity of an LM-79, utilizing a goniophotometer of type C has a number of distinct benefits, including the following:

  • The stringent accuracy criteria of the LM-79 standard are satisfied by goniophotometers of type C, which means that luminous intensity readings obtained from these instruments are very precise and trustworthy.
  • A complete characterization of the light output from a source can be obtained with the help of a Type C goniophotometer, which does this by measuring the luminous intensity at several different angles. This gives lighting professionals the ability to make educated decisions regarding the performance of their products.
  • Repeatability is built into Type C goniophotometers from the ground up, so that even if measurements are done at various times or by different operators, they will still provide accurate results. It is essential to ensure that this is the case in order to guarantee that the outcomes of luminous intensity measurements are trustworthy and comparable throughout the course of time.

In conclusion, a goniophotometer of type C is an essential tool for lighting professionals who need to measure the luminous intensity of their products in accordance with the LM-79 standard. It provides results that are accurate, reliable, and repeatable, which are essential for making informed decisions about the performance of their products.

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