luminance measurement goniophotometry robot

robogonio fair campaign 2020

One System. Six Advantages.

  1. Maximum Flexibility – Goniophotometry in near and far field…

    Goniophotometry in near and far field, multiple detector systems combined in one device.

  2. Extremely quick scans – fast Class L photometer shortens…

    The fast Class L photometer shortens the measurement duration.  This means: hemisphere within approximately 120 seconds.

  3. Variable Size: robogonio in numerous sizes…

    The robogonio is available in multiple variations (with a payload of 6 kg to up to 1000 kg), special additions are available. Our official system partner: the KUKA Roboter GmbH.

  4. Maximum precision – highest angle repeatability…

    The robogonio offers highest angle repeatabilities of up to 0.005° as well as a photometer of the highest class (L).

  5. Intuitive operation – easy to use…

    The robogonio is easy to operate. Complicated and error-prone measurements with mirror goniophotometers are a thing of the past.

  6. All-round carefree package – your partner from start to finish…

    From the complete planning of our system over component calibration to competent after-sales support, we are pleased to support you.

Ten machine sizes - multiple goniophotometer configurations

robogonio combines the flexibility of a KUKA industrial robot with the precision of the opsira light measurement technique. Depending on the request, different detectors can be combined with robogonios of various sizes.

The crucial configuration attributes are

  • size and payload of the robogonio
  • detector equipment

This opens up countless possibilities for the configuration of your own robogonio. The choice of goniophotometer is facilitated by the three product lines with clearly defined detector equipment.



Pfeil nach oben

Many goniophotometer types - one device

With its six axes, the robogonio combines multiple goniophotometer types into one device, defined in the following standards:

  • DIN 5032-1
  • DIN EN 13032-1
  • CIE 121
  • CIE S 025

Especially type 1.1, 1.2 and 1.3 are a piece of cake for the robogonio. In these types, the detector stays stationary while the sample (light source, luminaire, display, LED …) rotates around its axes, entirely conform to the latest standardization DIN EN 13032-4, CIE S 025.

goniometer light luxmeter measuring
Pfeil nach oben
  • robogonio alpha line

    The goniophotometer robogonio

    Three product lines - numerous varieties

    • Detector: Standard photometer frc-f
    • The alpha line is equipped with the solid photometer frc‘3 for luminous intensity measurements. Measurements of the luminous intensity distribution are conducted step by step with the desired measurement resolution. A typical LID measurement takes approximately 100 minutes.
    • Example configuration: robogonio alpha 8
  • robogonio pro line

    The goniophotometer robogonio

    Three product lines - numerous varieties

    • Detector: very fast Class L photometer
    • The pro line impresses with a high-quality and very fast Class L photometer. The luminous intensity distribution of a light source or luminaire is measured in minutes with high precision.
    • Example configuration: robogonio pro 18
  • robogonio top line

    The goniophotometer robogonio

    Three product lines - numerous varieties

    • Detector: fast photometer with a spectrometer
    • The top line combines the fast photometer with a spectrometer. Luminous intensity distribution and spectral distribution with an angle (color over angle) are measured easily and direct.
    • Example configuration: robogonio top 26
  • Pfeil nach oben

    Limitless Combinations

    Detector equipment: solid standard photometer frc-f

    Detector equipment: high-quality and speedy high-class photometer frc-f-l

    Detector equipment: fast pro-line photometer and spectrometer for spectral- and color measurements


    The robogonio alpha line is equipped with the solid photometer frc’3 for precise measurements of luminous intensity distributions.


    The pro line is equipped with the fast class L photometer frc-f-l. This photometer allows high-resolution measurements of the luminous intensity distribution in no more than two minutes at an extremely high precision.


    The top line works with the photometer frc-f-l as well as with an additional spectrometer which enables measurements of spectral distributions from UV to NIR. Colorimetrical values in the visible spectral range are generated directly according to CIE and are saved in a measurement report.

    Pfeil nach oben

    Technical Specifications­ - Product Details

    Flexibility in size and payload

    The robogonio is available in many variants for different payloads, uses and space limitations. The smaller models are designed for measuring the luminous intensity distribution of luminaires and LED PCBs as well as for scanning illuminance distributions. The larger models are suitable for systems such as street lights, stage lights and headlights. The sky’s the limit - almost. Even payloads of up to 1,000 kg are possible.

    Six axes in one device

    With its large range of motion, a measurement in the traditional A, B or C planes are possible with one measuring system. With six axes, the robogonio combines multiple goniophotometer types into one device (DIN 5032-1 | DIN EN 13032-1 | CIE 121 | CIE S 025). Especially Type 1.1, 1.2 and 1.3 are a piece of cake for the robogonio.

    Far field: EULUMDAT and IES

    In the far field, the robogonio measures the Luminous Intensity Distributor of luminaires. Standardized formats of documentation for this type of far field data such as the European EULUMDAT (*.ldt) or the American equivalent IES (IESNA LM-63) are generated immediately. This enables the automatized generation as well as the loss-free, platform-spanning exchange of precise measurement results. With the robogonio’s EULUMDAT or IES data, optical system designers can now work independently in different locations without precision loss.

    Luminance measurements

    Angle dependent luminance measurements are the foundation for glare ratings and the measurement of the UGR-value (Unified Glare Rating). With the high-resolution luminance intensity measurement camera photometer luca, the robogonio can measure light sources from 10.000 different angles. This generates reliable near field ray data for the application in all common optic simulation environments.

    Light source mounted on the robogonio

    For goniophotometric measurements of the types 1.1, 1.2 and 1.3, the detector is stationary while the light source (sample) is moved by the robogonio around the vertical and horizontal axis. Through the flexibility in the room, measurements with the robogonio are possible with a sample of any length and width, as well as the pivot point in the room. This opens the system up to new measurement ways such as the scanning of geometrics or elongated light sources.

    Detector mounted on the robogonio

    When the detector is mounted on the robogonio, it can scan any desired geometry, e.g. planes. This enables a quick estimation of the luminous distribution of luminaires and headlights.

    Luminous flux integrator

    When the robogonio is holding the detector, it circles the light source and therefore functions as a luminous flux integrator for the measurement of the total luminous flux.



    Pfeil nach oben


    In the automotive industry, two aspects of photometric measurement are of particular importance: Results need to be delivered extremely quick and authoritative and the measurements have to be executed with the finest angular resolutions so that the tests comply with the applicable standards.
    The robogonio meets both of these criteria perfectly. The speedy high-end-photometer reduces the time required for classic goniometric measurements to a few minutes. Moreover, the robogonio permits angular resolutions of 0.01°, thus enabling precise observance of the cut-off line.

    Constantly launching new variants of luminaires, easily providing light planners with far field data (IES or EULUMDAT), and quickly generating the requiredc LED data. The robogonio stands for a measuring solution that fulfills all these requirements with ease.
    The optional spectrometer also enables color-over-angle measurements. Optic designers can now determine how the color changes at certain angles and whether unwanted color effects occur.
    Another important aspect is the measurement of the total luminous flux in relation to the consumed electrical power. Luminous flux efficiency in lumen/watt as well as energy efficiency classes can be determined directly.

    Luminous intensity distribution is an essential factor for measuring traffic lights, railway signals, beacons or signal towers for production lines. Some applications present the additional challenge of the front and back light exit windows having to emit the exact required quantity of light.
    Here, the robogonio impresses with its flexibility since it can measure the luminous intensity distribution in both directions using arbitrary cebtres of rotation in space.
    Standard-relevant testing areas are covered automatically by the robogonio.
    For fast and efficient work, the robogonio enables integrating user-defined measuring processes.

    Pfeil nach oben

    User Report - Goniophotometry with LED Linear

    The LED market is fast-moving, and the trend goes to increasingly small luminaires with continuously improved optics. The light lab of LED Linear, the specialist for linear illumination systems, has been accredited by the DAkkS in acc. with DIN ISO/IEC 17025 since the middle of 2018 and is designed for precisely these challenges.

    Dino Iavarone, head of measuring technology, explains how LED Linear does it: "We use the most modern measuring technology. Also, the robogonio goniophotometer allows us to perform measurements very fast and precisely. Speed is worth real money nowadays." In addition, the color spectrum and temperature can even be measured in the outmost angle of radiation. "Making these values quantifiable is becoming increasingly important in optics development." The product development at LED Linear
    profits from all these advantages just as much as smaller manufacturers without an accredited lab, because all services are also available to external customers.

    Planning stress tests for luminaires and optics: anything can be measured.

    The aim of expanding photometry at LED Linear was to be able to thoroughly test light sources and optics. Cold, heat air humidity and temperature changes are simulated in climatic test chambers. Long-term tests are about service life predictions. The illuminants are operated for 10,000 to 15,000 hours at increased temperatures to be able to make substantive statements. "The stress tests are mainly about whether components can be improved and to see whether foils, adhesives and polyurethanes
    maintain their characteristics," says Iavarone.

    "We perform these tests with all new developments, but we also regularly test our standard products to determine possible error sources."

    The light lab, accredited in accordance with DIN ISO/IEC 17025, is also equipped with the robogonio goniophotometer by opsira and an Ulbricht sphere. The integrating sphere provides the luminous flux or Ra and the spectral radiant power. The robogonio provides the light distribution curve up to gamma = 120°, the luminous flux and the angular dependent colour coordinate-specific values. The photometric results are provided as IES or EULUMDAT files. "That's all a light lab has to be able to do," notes Iavarone. "What's exciting on the one hand is that the robogonio works completely different than a
    mirror goniometer and allows significantly faster precise measurements. On the other hand, we have a measuring option for the coffee spots problem that paves the way to the perfect optic."

    Compact, fast, nonconformist: What a goniophotometer can do.

    Mirror goniometers are still frequently used, but since the market introduction of the robogonio in 2012, different photometry manufacturers have developed robot solutions. "We have been working with opsira for the past five years," says Iavarone. "The measuring technology is often comparable, but the companies differ. opsira's support is fast and competent and we pursue a reasonable exchange. Besides the good product, this is a huge benefit." For this reason, LED Linear relied on the certification for measurements in accordance with DIN EN 13032-4 being possible with the goniophotometerby opsira, and this trust has paid off.Since then, the company has been profiting from various advantages that are interesting for internal development and external customers. While a mirror goniometer requires a very large, very high room and moves around the luminaire, the robogonio moves the luminaire. "So we only need a long, narrow room at whose end the detector records the measuring values." The consequence: the light distribution curve is measured at a speed that cannot be realised with a mirror goniometer. Valid results are thus available faster and the development process speeds up. "With the rapid developments nowadays, this is a giant advantage," says Iavarone.Another central aspect is a measurement that is designed to remove coffee spots. In combination with a spectral measuring head, luminaires can also be tested in the outmost angle of radiation. "The trend goes towards increasingly smaller luminaire dimensions, which is why it becomes increasingly challenging to achieve a homogeneous light distribution." Measurements of the colour spectrum and temperature allow us to quantify errors and compare these with the target value. "We use a lot of computer simulations in optics development. These become significantly more accurate when fed with precise values," notes Iavarone. "As this will become increasingly important in the future, it is important for us to make sure that our lab is ready for this trend."


    The robogonio: One system for many applications

    The robogonio offers highest precision because it unites goniophotometry in the near and far field together with various detector systems in one device. The class L photometer reduces measuring time and performs a half space measurement, for example, in about two minutes.
    The robogonio ensures maximum precision with an angular repeatability of up to 0.005°. Complicated and error-prone measurements with mirror goniophotometers are a thing of the past thanks to its intuitive handling.

    The robogonio is available with various detectors and in various robot sizes (lifting capacity from 4 to 1,000 kg) for different application fields. Special models are also always an option. Three product lines already cover most applications: the alpha line with the sturdy frc‘3 photometer, the pro line with the fast Class-L photometer frc-f-l, and the top line with its combination of frc-f-l photometer and spectrometer.

    More about LED Linear

    LED Linear GmbH develops and produces high-quality linear LED illumination systems for technically demanding interior and exterior lighting. Its main products are linear and scalable luminaire modules and systems on LED basis with a protection class of up to IP67. More than 30 million individual solutions can be generated on the basis of a modular construction system.

    The luminaire systems are applied all over, ranging from ambient and general lighting and furniture installations to facade lighting at a height of 300 metres. The use of high-quality and durable components guarantees energy-saving solutions with an extremely long service life of up to 60,000 hours. The products are distributed globally, for example in the USA and Canada, Singapore, India, Australia, France, Spain, the UK and in the Middle East. The company employs around 175 employees globally.

    LED Linear GmbH
    Pascalstraße 9
    47506 Neukirchen-Vluyn
    Tel. +49 2845 98462-0

    Pfeil nach oben


    opsira offers multiple configurations and add-ons plus accessories.

    Photometer and auxiliary photometer. Flexible and powerful. frc’3.
    The High-End-Photometer. Highest precision. Quick scans. frc-f-l
    The spectroradiometer. Complete solution for light and colour. spr’3.
    The spectrometer. Quick and extensive. spec'3.
    The luminance camera. High dynamics and flexibility. luca.
    The colorimetry camera. Luminance and colour distribution. luca' color.

    Customized configuration

    Goniometer size and configuration customized according to your needs and sprecial requirements.

    -fGoniophotometer (Fernfeld, enthalten in der alpha line)Photometer frc’3
    -lGoniophotometer (Fernfeld, enthalten in der pro und top line)schnelles High-End-Photometer (Klasse L) frc-f-l
    -spcGoniospektrometerSpektrometer spec'3
    -sprGoniospektroradiometerSpektroradiometer spr’3
    (Nahfeld, Fernfeld, Strahlendaten)
    Leuchtdichtemesskamera luca
    Photometer frc'3
    (Nahfeld,Fernfeld, Strahlendaten, polychromatisch)
    Leuchtdichte- und Farbmesskamera luca'color und Spektroradiometer spr'3
    -rrGoniophotometersystem zur Messung der RetroreflexionHigh-End-Photometer (Klasse L), frc-f-l, Projektor
    -hHIlfsphotometer nach DIN EN 13032-4Photometer frc'3 (kleine Bauform)
    -phi-fLichtstärke und Lichtstrommessung bei stillstehender LichtquellePhotometer frc'3 mit 7. Achse
    -phi-lLichtstärke und Lichtstrommessung bei stillstehender Lichtquelleschnelles High-End-Photometer
    (Klasse L) frc-f-l mit 7. Achse
    -fisGoniophotometrische Blitzmessung
    (effektive Blitzlichtstärke nach Blondel-Rey oder Schmidt-Clausen)
    nur in Verbindung mit einem -l-robogonio erhältlich


    lmgLeistungsmessgeräte (Strom, Spannung, Leistung, Wirkungsgrad lm/W)
    klsKlimasensorik (Temperatur, Luftdruck, Luftfeuchte)
    tesTemperatursensorik (z.B. Platinen- oder Lichtquellentemperaturen)

    Sie benötigen Beratung zu unseren Produkten, Software oder Konfiguration?

    Pfeil nach oben


    Welcome to your own all-round carefree package with robogonio. The wide range of accessories includes integrated power supplies, power measuring devices, multiplexers, electrified mounting adapters and thermal sensors for luminaires.

    goniophotometer goniophotometry device

    Mounting adapter and thermal sensors. Simplified connection and measuring.

    heatmap goniophotometer goniophotometry

    Software and reporting functions. Everything at your fingertips.

    Pfeil nach oben

    robogonio in action

    Any questions?

    Please contact
    Jürgen P. Weißhaar:
    Phone +49 751 561890

    Pfeil nach oben