Photometers & Colorimeters
Photometers measure the amount of light emitted from a light source (luminance in the near-field, luminous intensity in the far-field), the light level received at a surface (illuminance) or the total amount of light emitted (luminous flux). Luminance photometers are often called "spot meters" whereas the popular name given to meters that measure illuminance is "lux meter". Tristimulus versions of our photometers tell you the colour (CIE chromaticity and colour temperature) of the light source. Where the spatial light distribution is of interest, an imaging photometer (sometimes called a "video photometer") provides a powerful means of measuring the luminance, illuminance or colour of light as a function of position or angle. An integrating sphere photometer serves to collect all of the light emitted from an extended source. Not sure what you need? Either review our applications area or contact Pro-Lite for informed assistance. Please note that if you need to test the colour rendering performance of your light, you need to use a spectrometer or a spectroradiometer.
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Illuminance Meters & ColorimetersThe tool without which no photometry lab is complete. The illuminance meter - popularly known as the "lux meter" - records the level of illuminance received at a surface at a given distance from a light source. A tristimulus response meter is also available for colour and colour temperature measurements. |
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Imaging Photometers & ColorimetersProMetric imaging (video) photometers and colorimeters are powerful, CCD-based instruments that provide for vastly increased productivity compared with traditional ‘spot’ luminance meters. A ProMetric photometer can measure the illuminance, luminance or colour of literally millions of points simultaneously. Moreover, localised luminance and colour differences can be easily detected. |
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Integrating Sphere PhotometersIntegrating sphere photometers for measuring the total luminous flux (units of lumens) from lamps, LEDs and luminaires. With integrating spheres from 2 to 76" (0.05 to 1.93m), any size of light source can be measured. |
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Luminance Meters & ColorimetersSpot luminance meters for measuring the "brightness" of displays and signs. The range includes a tristimulus response luminance colorimeter as well as an advanced "spectral colorimeter" that provides a colorimetric accuracy approaching that of a spectroradiometer but at a fraction of the cost. |