24 February 2013

Efficient Optical Measurement Through Robotic Technology: Robo-Goniometer

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An optical measurement system has been developed by Opsira that delivers state-of-the-art performance, reliability, and efficiency.

The amount of light relative to a fixed angle is important in various applications. A practical example would be in the installation and positioning of street lamps. For street lamps to illuminate an area efficiently and effectively, the angle of the light fixture is important.

A goniometer is an instrument used in measuring an angle or for rotating an object to a precise angular position.

In measuring light, optical goniometers (also called photogoniometers) are used to:
  1. Measure the distribution of the light that is visible to the human eye (photometric)
  2. Measure the distribution of light within an area or space (radiometric)
These measurements are done in relation to an angular position within 3 planes.

German company Opsira has combined 21st century robotic technology with an efficient optical measurement system in developing the Robo-goniometer; a state of the art robotic optical measurement system.

Opsira’s Robo-Goniometer

Combining robotic technology, state of the art measuring system as well as different conventional goniometer types into one device, Opsira has developed the Robo-goniometer. Where most conventional goniometers can rotate in 4 axes, the robo-goniometer has a six axis construction that allows it to position objects and samples with high precision and reliability.

Because of the technology behind the robo-goniometer, it allows measurements in three planes by using one single measurement system that combines the goniometer types 1.1, 1.2 and 1.3 according to the standard set by the German Institute of Standardization (DIN) under DIN 5032.

Video: The Robo-goniometer for flexible measurement of optical and photometric characteristics

Other goniometer types such as 2.x, 3, 3.2, and 4 are also available depending on the configuration.

Advantages of a robotic system

For most optical systems, luminance (the amount of light emitted) and radiance (the power of the light emitted) can be made efficient by setting it at a precise angle.

Robotic systems guarantees precise movements and measurements. It does away with manual calibrations that can be time consuming and has a higher risk for errors. An industrial grade robotic system such as the robo-goniometer has the advantage of applying multiple variables on a three dimensional plane to come up with the most efficient position and accurate measurements.

With a system like this, positioning of objects such as street lamps and car headlights, and even linear luminaire measurements are automated, precise, and optimized.

The embedded video shows how the robo-goniometer operates in a simulated setting but in real world applications, the device will perform just the same.


Opsira, the developer of the robo-goniometer is the market leader in optical system design and engineering and optical measurement systems. Years of experience of Opsira’s professional engineers ensure that Opsira is a competent partner in a company’s optical innovations.

Opsira uses the most current technology available to develop and optimize the most efficient and state-of-the-art simulation and measuring techniques. The Robo-goniometer is a testament to this.

Trade Fair Event Dates

Opsira will be present in the following Trade Events:

Elektronik Lighting Congress
23 April 2013
Kempinski Hotel Airport Munich, Germany

LIGHTFAIR International 2013
21 April to 25 April 2013
Booth No 376, Pennsylvania Convention Center
Lambda Research Corporation (US Distributor)

LASER World of Photonics 2013
13 May to 16 May 2013
Hall B2 - Booth B2.464


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