Bentham Instruments Ltd
Bentham Instruments offers over 30 years extensive experience in the manufacture and supply of standard instruments and custom systems for applications involving the study and measurement of light.
- 44 (0)1189751355
- 44 (0)1189312971
- info@bentham.co.uk
- 2 Boulton Road
Reading, Berkshire RG2 ONH
United Kingdom
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Products
Applications
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Detectors
Each detector is properly housed, complete with any associated circuitry and can be mounted directly at the exit slit of any of our monochromators.
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Light Sources
Bentham's range of light sources has evolved to suit the requirements of our systems and their users and now offers single or multiple sources from 200nm to 40m:
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Monochromators
Diffraction gratings are specified by a line density in grooves per millimetre. The higher the density, the greater light is dispersed resulting in a relatively limited spectral extent. Furthermore, in general , the higher line density gratings are optimised for short wavelength use and vice versa. One must take into account the available grating(s) and the operation range of such before deciding how many gratings are required to cover a given range. Where multiple gratings are required, one can opt for a multiple-grating monochromator which would allow performing a spectral measurement over a great range, or whether a single (interchangeable) grating monochromator is used and the measurement performed in two or more parts.
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Optical Radiation Meter
ORM400
The ORM400 Optical Radiation Meter has a USB 2.0 interface and is supplied with powerful calibration features and data display functions. It is ideally suited to display the measurements from the DH400 range of detectors as well as third party current generating detectors.
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Solar Cell Characterisation
The PVE300 permits the determination of device spectral responsivity (from which may be determined EQE), and, having performed measurements of sample reflectance (and transmittance where required) the determination of IQE.
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Calibration Standards
The accuracy of any spectroradiometric measurement can only be as good as that of the standard source used to calibrate the system.
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High Power Tuneable Light Source (280-1100nm)
TLS120Xe
This compact solution easily fits into a wide range of applications in spectroscopy and spectrophotometry and delivers superlative stability and continuous tuning over 280-1100nm. The wavelength agile TLS120Xe offers a high power monochromatic beam suited to a wide range of materials and photodetector characterisation applications in research, industry and OEM, including: Fluorescence imaging, Photoluminescence / fluorimeter excitation, Detector responsivity / QE evaluation ...
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Detection Electronics
Our detection electronics portfolio comprises all the detection electronics elements required for the operation and automation of a high quality light measurement system, including photo-detector signal recovery and digitisation (with fully programmable DC, AC and lock-in amplifiers having current/ voltage inputs), high voltage supply, optical chopper control, detector thermoelectric cooler control and relay unit.
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Integrating Spheres
All our spheres can be coupled to our high performance spectroradiometer systems for UV-visible-IR spectral power distribution measurements yielding full colour information including colour rendering indices, chromaticity co-ordinates, colour temperature, etc. Alternatively precision photometric detectors can be fitted for direct total lumen output measurements.
