Lighting Measurement
The integrating sphere, with its unique ability, is the core tool for lighting measurement and has become the cornerstone tool for measuring core parameters such as total luminous flux, spectrum, and chromaticity of light sources in the lighting industry. It realizes the transformation of complex spatial distribution light into a simple and quantifiable electrical signal, providing indispensable data support for the research and development, production quality inspection, standard calibration, and performance evaluation of lighting products. It is one of the most reliable and efficient measurement devices in lighting laboratories and production lines.
1. Total luminous flux measurement:
This is the most classic and important application of the integral ball. The unit of luminous flux is lumen, which describes the total luminous power perceived by the human eye from a light source. Due to its ability to "integrate" light from any direction, the integrating sphere is an ideal tool for measuring the total luminous flux of omnidirectional light sources such as incandescent lamps, fluorescent lamps, and LED filament lamps.
2. Spectral power distribution and chromaticity parameter measurement:
When the integrating sphere is combined with a spectral radiometer, not only can the luminous flux be measured, but also the spectral power distribution of the light source can be measured, thereby calculating key chromatic parameters.
Related color temperature: Is the color of the light source warmer (yellow) or cooler (blue).
Color rendering index: The ability of a light source to reproduce the true color of an object.
Chromatic coordinates: Accurately describe the position of the light source color on the chromaticity diagram.
Measurement of light source uniformity and radiation channel:
Special measurement requirements for special light sources or components.
Uniformity detection: suitable for surface light sources such as OLED panels and backlight modules. The integrating sphere can collect the overall light emission of the surface light source, determine the brightness uniformity of different areas, and avoid local brightness differences.
Radiation flux measurement: In the field of non visible light illumination such as ultraviolet and infrared (such as ultraviolet disinfection lamps, infrared heating lamps), integrating spheres can be paired with detectors in corresponding bands to measure the total radiation power of the light source and evaluate its effective radiation output.
This is the most classic and important application of the integral ball. The unit of luminous flux is lumen, which describes the total luminous power perceived by the human eye from a light source. Due to its ability to "integrate" light from any direction, the integrating sphere is an ideal tool for measuring the total luminous flux of omnidirectional light sources such as incandescent lamps, fluorescent lamps, and LED filament lamps.
2. Spectral power distribution and chromaticity parameter measurement:
When the integrating sphere is combined with a spectral radiometer, not only can the luminous flux be measured, but also the spectral power distribution of the light source can be measured, thereby calculating key chromatic parameters.
Related color temperature: Is the color of the light source warmer (yellow) or cooler (blue).
Color rendering index: The ability of a light source to reproduce the true color of an object.
Chromatic coordinates: Accurately describe the position of the light source color on the chromaticity diagram.
Measurement of light source uniformity and radiation channel:
Special measurement requirements for special light sources or components.
Uniformity detection: suitable for surface light sources such as OLED panels and backlight modules. The integrating sphere can collect the overall light emission of the surface light source, determine the brightness uniformity of different areas, and avoid local brightness differences.
Radiation flux measurement: In the field of non visible light illumination such as ultraviolet and infrared (such as ultraviolet disinfection lamps, infrared heating lamps), integrating spheres can be paired with detectors in corresponding bands to measure the total radiation power of the light source and evaluate its effective radiation output.