Illuminance Photometers & Colorimeters

Illuminance Meters from Pro-Lite

The tool without which no photometry lab is complete! The illuminance meter - popularly known as the "lux meter" - records the level of illuminance from a light source; illuminance is the luminous flux per unit area received at a surface measured in lumens per square meter or lux. Illuminance varies with the distance from the light source. An illuminance meter is often equipped with a cosine diffuser which scales the effective illuminance from light sources that illuminate at angles other than normal incidence. An illuminance meter can also double as a tristimulus response colorimeter for measuring the chromaticity and colour temperature of the light source. Pro-Lite offers two grades of standard illuminance meter: the T-10 and CL-200 from Konica Minolta represent the affordable approach; the Digilux 9500 and FMS 10 from Optronik provide research-grade specifications and features.

If you need to measure the illuminance or colour uniformity (for example, from projectors, car headlights or LED luminaires), you may wish to consider a ProMetric Imaging Photometer.

Konica Minolta CL-200 Illuminance Colorimeter

CL-200A Illuminance Colorimeter

The CL-200A is an affordable, portable illuminance meter that provides accurate readings - even with LEDs. Being based upon a tristimulus sensor, the CL-200A records not just the illuminance but also the CIE chromaticity and correlated colour temperture of the light source.

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Digilux 9500 Illuminance Photometer

The Optronik Digilux 9500 is a research-grade, laboratory illuminance photometer which is available with a choice of sensors precision matched to the CIE standard observer for photopic vision. Choose between class A and L sensors per DIN 5032 with the further option of thermostatic control.

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FMS 10 Illuminance Colorimeter

The Optronik FMS 10 is our research-grade, laboratory illuminance colorimeter that achieves the highest accuracy (class L) for lux measurements in accordance with DIN 5032. The tristimulus response sensor is based upon 4, thermostatically controlled silicon sensors precision matched to the CIE X₁, X₂, Y & Z observer functions.

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T-10 Illuminance Photometer

The T-10 from Konica Minolta is our least expensive lux meter. Although affordable, the T-10 is nevertheless equipped with a cosine diffuser and a spectral response matched to the CIE standard observer for photopic vision.

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