Colorimeters

Our colorimeters double as illuminance meters (which measure the illuminance in lux from the light source) or as luminance meters (sometimes called "spot" meters, which measure the "brightness" in candelas per sq. meter). Both types report the chromaticity and colour temperture of the source.

» Konica Minolta CL-100 illuminance colorimeter
» Konica Minolta CS-200 luminance "spectral" colorimeter

See also:

» Radiant Imaging ProMetric CCD imaging photometer
» Konica Minolta CS-2000 spectroradiometer

Goniophotometers

The variation of luminous intensity, illuminance, luminance and colour with view angle are important parameters for all manner of light sources, from automotive headlights to traffic signals, from LEDs to LCD displays and of course lamps and luminaires. Our motorised goniometer systems make the job of testing the angular properties of light sources quick and easy.

From Radiant Imaging, we combine a ProMetric CCD imaging photometer with a motorised goniometer platform in the FPMS system for the near-field photometry of displays and the far-field photometry of lamps and luminaires. FPMS-LI combines with ProSource software to generate industry-standard IES files; EULUMDAT and CIBSE TM-14 files can be generated using 3rd party software. » Learn More

From Labsphere, the LSA-3000 is a dedicated gonometer for measuring the variation of intensity with angle of single LEDs. » Learn More

From Optronik, we supply classical goniometers that measure the far field variation of luminous intensity or illuminance from vehicle lights as well as from traffic signals. » Learn More

Imaging Sphere™

The patented Imaging Sphere™ from Radiant Imaging is the fastest angular light measurement instrument available today. Capture the full 2π hemispherical angular luminous intensity and colour variation of small light sources in seconds. For displays, the Imaging Sphere rapidly measures view angle as well as luminance and colour variation with direction of view. The Imaging Sphere also functions as a high speed BRDF scatterometer, characterising the reflectance and transmittance properties of material in a fraction of the time and cost of traditional goniometers.

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Integrating Spheres

An integrating sphere is a hollow, spherical chamber coated internally with a high reflectance coating that exhibits diffuse reflectance. Spheres are used as directionally-insensitive collectors of light when combined with photodetectors. Internally illuminated Integrating spheres also serve as sources of uniform luminance or illuminance. Integrating spheres simplify the measurement of light sources and the optical properties of materials and are used for sensor calibration.

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Lamp Calibration Standards

Lamp standards of luminous flux (lumens), spectral radiant flux (Watts/nm) and spectral irradiance (Watts/m².nm) for calibrating integrating sphere photometers and spectrometer systems.

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Photometer - CCD Imaging (ProMetric®)

ProMetric® photometers and colorimeters are powerful, CCD-based light and colour measurement instruments that provide for vastly increased productivity compared with traditional ‘spot’ luminance photometers. A simple spot meter only measures brightness at one point on a display or light source at a time; a CCD-based ProMetric photometer can measure millions of points simultaneously. Moreover, because the ProMetric camera views the whole light source at once, localised luminance and colour differences can be easily detected – artefacts that simple spot meters would probably miss.

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Photometer - Illuminance

An illuminance photometer employs a photometrically-filtered detector with a spectral sensitivity matched to the CIE standard photopic observer function, V-lambda. A cosine diffuser correctly scales the effective illuminance of off-axis light rays. An illuminance photometer is sometimes referred to as a "lux meter".

» Konica Minolta T-10 illuminance photometer

See also:

» Konica Minolta CL-200 illuminance colorimeter
» Radiant Imaging ProMetric CCD imaging photometer

Photometer - Integrating Sphere

An integrating sphere photometer measures the total light output from light sources as diverse as OLEDs, lamps, LEDs and fibre optic illuminators. Depending upon the detector type chosen, your integrating sphere photometer will measure the total luminous flux in lumens or the total spectral radiant flux in Watts per nm, from which the luminous flux, chromaticity, colour temperature, dominant wavelength and colour rendering are computed. Spheres are available in size from 2.5cm to 2m diameter, accomodating any size or power of light source.

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Photometer - Intensity

Intensity is the directional flux per unit solid angle from a point light source, such as an LED. Intensity is measured in candelas (cd). Our LED intensity photometer complies with CIE 127 for averaged, near field intensity measurements. 

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Photometer - Luminance

A luminance meter employs a lens to specifically target an area (or spot) on a display or light source for brightness (luminance, candela per sq. meter) measurements. Pro-Lite offers a standard luminance meter as well as a model which doubles as a colorimeter to record the colour (chromaticity, x y or u' v') and colour temperature of the light source.

» Konica Minolta LS-100 / LS-110 luminance photometer

See also:

» Konica Minolta CS-200 luminance "spectral" colorimeter
» Konica Minolta CS-2000 spectroradiometer
» Radiant Imaging ProMetric CCD imaging photometer

Radiometers

An integrating sphere radiometer provides accurate, highly repeatable measurements of "difficult to measure" light sources such as high power lasers, laser diode arrays and bars and fibre optic illuminators. In fact, any light source whose power, size, beam divergence, beam size or dynamic beam displacement makes it difficult to use a standard "power meter".

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Reflectance Standards

Award-winning Spectralon® forms the basis of our diffuse reflectance standards. The range includes standards of reflectance for the 250-2500nm range (white and grey-scale), colour, wavelength and fluorescence. All are characterised by stable, Lambertian reflectance. For the IR (0.7-20µm) we also offer Infragold® diffuse reflectance standards. Our standards are used to calibrate colorimeters, reflectometers, spectroradiometers, BRDF scatterometers, UV-VIS spectrophotometers and FTIR spectrometers.

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Reflectance Targets

Spectralon® also forms the basis of our diffuse reflectance targets. Spectralon targets are available in sizes up to 60 x 60cm; non-standard sizes and larger panels are available to custom-order.  For the IR (0.7-20µm) we also offer Infragold® diffuse reflectance targets. Our targets are used to calibrate remote sensing systems and spectroradiometers.

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Spectrometers

The CCD spectrometer is one of the most widely used tools for measuring and interpreting the interaction of light with matter. Fibre optic spectrometers are used in the UV-VIS-NIR band (200-2550nm) for spectroscopic applications as diverse as medical and biological research, light source testing, environmental monitoring, life sciences, education, entertainment lighting and displays. Our spectrometers are used for measuring reflectance, transmittance, absorbance, fluorescence and colour as well as in spectroradiometry, LIBS and Raman spectroscopy.

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Spectroradiometers

Our spectroradiometers measure the spectral radiance (in units of Watts per steradian per sq. meter per nm) from a light source or display. In addition, the luminance (candelas per sq. meter),  colour (chromaticity, x y or u' v') and colour temperature of the light source or display are also reported. A choice of lenses and measurement spot sizes allow you to target the specific area within the light source or display for luminance measurements.

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Uniform Light Sources

An internally illuminated integrating sphere provides uniform radiance or irradiance for the testing and calibration of optical instrumentation. Uniform light source systems are used to perform flat-fielding and pixel gain normalisation of cameras and array detectors (CCD, CMOS). Other applications include photographic sensitometery, uniform illumination in machine vision and calibrating photometers and remote sensing spectroradiometers.

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UV Analysers (Sunscreen & Fabric SPF)

The Labsphere UV-2000S has replaced the UV-1000S which became the defacto standard for in-vitro testing of sunscreen and fabric sun protection factors (SPF) and UVA ratios. In order to keep pace with the latest industry methods for quality assurance and UVA Protection Factor (UVA-PF) analysis in the formulation, development and testing of sunscreen products, Labsphere has introduced its next generation UV Transmittance Analyser, the UV-2000S.  Designed to rapidly measure the spectral transmittance of sunscreen products, especially those with high protection factors SPF 50 and above, the UV-2000S builds on the platform of Labsphere’s industry standard UV-1000S with increased dynamic range and functionality.

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