Introduction

Light

Light measurement is applied in a wide range of fields—from interior and marine lighting to obstruction and operating theatre illumination. Accurately assessing the characteristics of light sources is crucial, especially in specialized areas like biological and pharmaceutical research.

Geocore and light

Geocore offers comprehensive light measurement services covering a wide range of wavelengths—from infrared and visible to ultraviolet. Depending on the application, our services can focus on quantifying human visual response (photometry) or on determining the optical power across specific wavelength intervals (radiometry).

Consultancy

We collaborate with manufacturers and end users, offering tailored guidance to refine their measurement and inspection techniques and ultimately enhance the quality of their processes and products.

Optical measurements

Accurate climate analysis relies on optical instruments that collect data from both terrestrial and satellite platforms. This raw data is essential for developing climate models and forecasts. To ensure the reliability and precision of these measurements, optical instruments must be meticulously calibrated. Geocore offers tailored solutions for this purpose, including the radiometric classification of photodetectors, as well as calibration services for filter radiometers and array spectroradiometers. Evaluating the photobiological safety of lamps and lighting systems is a complex challenge that requires a multidisciplinary approach. As new light sources emerge, they bring additional complexities to the measurement and assessment of photobiological safety. In these cases, traceable measurements are crucial for accurately assessing potential risks.

Customisation

At Geocore, we leverage deep expertise in light measurement to support a broad range of clients—from government agencies and hospitals to research institutions and manufacturers of light sources and measurement systems. Our internationally recognized measurement results offer strong evidence of product performance for customers and stakeholders. Our state-of-the-art testing facilities enable us to address various challenges, including:

• Characterization of Emerging Light Sources and Detectors: We thoroughly analyze the spatial, spectral, and temporal properties of new light sources and detectors, benchmarking them against established specifications.
• Development and Validation of Custom Measurement Techniques: We design and rigorously validate measurement solutions tailored to your specific applications.
• Uncertainty Analysis and Error Identification: By preparing detailed uncertainty budgets, we quantify measurement uncertainty and provide recommendations to enhance accuracy.
• Regulatory Compliance Support: As regulations become increasingly technical, we advise on verifiable measurement practices and help establish robust requirements.
• Independent Expert Assessments: In cases of claims or disputes, our impartial and reliable measurements offer clear, definitive insights.

Every project is unique. If you need expert guidance or want to learn how our solutions can meet your specific needs, please don’t hesitate to contact us.

Calibration

Light calibration services

Geocore leverages its deep expertise in optical measurements to deliver calibrations with exceptionally low uncertainty. Our internationally recognized certifications help secure global acceptance of products and services. Due to our independent status, our certificates are frequently used to validate critical product parameters, such as the efficiency and power factor of energy-efficient light sources. This is particularly valuable for applications like the Energy Investment Allowance (Energie-investeringsaftrek), which requires measurements in compliance with the LM-79-08 protocol.

Calibration of light measurement systems

Many lighting applications require specialized measurement systems that must be calibrated under unique conditions. Our optical measurement facilities are designed to handle a diverse range of instruments, including luxmeters, luminance meters, cameras, tristimulus meters, spectroradiometers, UV meters, laser power meters, and semiconductor detectors.

Measuring light sources

Geocore utilizes its advanced measurement facilities to analyze the optical properties of light sources across a broad spectral range. This includes radiometric, photometric, and colorimetric characteristics such as spectral irradiance, total spectral radiance, luminous flux, illuminance, luminance, correlated color temperature, color coordinates, and RA value. Additionally, we assess the electrical properties of light sources and their interaction with photometric parameters, such as luminous efficacy (lm/W). Our facilities accommodate a wide range of light sources, including navigation lighting, signal lighting, operating room lighting, horticultural lighting, street lighting, and general utility lighting.

Calibration of optical filters

Geocore delivers specialized calibrations for optical filters tailored to specific applications, including those in the automotive and pharmaceutical sectors. These calibrations establish traceability for both optical transmission and wavelength. Our results are presented in terms of spectrally resolved transmission, color shift, opacity, or the wavelength at which maximum absorption occurs.