The ANSI/IES LM-84-20 standard, developed jointly by the American National Standards Institute (ANSI) and the Lighting Engineering Society (IES), describes a method for measuring luminous, radiant, or photon flux, as well as chromaticity and other spectral properties over time. This method applies to LED lamps, LED light engines, LED luminaires, OLED light engines and OLED luminaires. This method includes the procedures and precautions to be followed in both the initial determination and reproduction of the results to determine the luminous, radian or photon flux as standard, and the spectral power distribution and chromaticity under standard operating conditions.
Solid state lighting products are adopted in horticulture and other applications. These products are expected to be adopted in new lighting applications and enter additional markets. As a result of additional applications to solid state lighting products, the scope of this approved method has been expanded to include reporting both photon flux and radiant flux as well as luminous flux.
A light-emitting diode (LED) is a semiconductor device that emits optical radiation when an electric current passes through it. Most LEDs emit a narrow band of wavelengths ranging from infrared (approximately 1000 nanometers) to ultraviolet (approximately 300 nanometers). LEDs are widely used in remote controls, security lighting, phone, tablet and computer screens, TV sets, home lighting, outdoor lighting, street and garden lighting, traffic signals, and increasingly in the automotive industry. However, despite their many advantages, studies are ongoing to assess whether these innovative light sources pose any potential risks to human health. Opinions are being published regarding the potential risks of LEDs to human health. Nevertheless, any exposure to optical radiation from LEDs is considered negligible compared to exposure to natural outdoor light.
Among the numerous tests, measurements, analyses, and evaluations our organization provides for businesses in various sectors, we also offer testing services for measuring the luminous flux and color retention of LED lamps, light engines, and luminaires under the ANSI/IES LM-84-20 standard, utilizing our trained and expert staff and advanced technological equipment.
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