Pro Lite Technology

Goniophotometers

VISO Goniophotometer

A goniophotometer (or goniospectroradiometer) measures the variation of luminous intensity with angle from a lamp, luminaire or display. Goniophotometers are often used to generate “standard photometric data” files for lighting products in either the IESNA (.ies) or EULUMDAT (.ldt) formats. Not all light fittings require a true goniophotometric measurement. For any lamp that has a narrow beam angle, there is a much simpler solution. By projecting the beam onto a matte screen and recording the beam pattern with an imaging photometer, you can record goniometric intensity data instantaneously. For measuring the view angle of a display, an imaging photometer can be combined with a conoscopic lens.

LightSpion Goniophotometer

 

BaseSpion Goniophotometer

 

LabSpion Goniophotometer

VISO LightSpion Goniophotometer   VISO BaseSpion Goniphotometer   VISO LabSpion Goniophotometer
         

The LightSpion from Viso Systems is a portable "suitcase" type C goniophotometer that is perfect for measuring lamps, LED modules and other small light sources. Maximum lamp size is 8cm and up to 2kg. An optional extender arm is available which increases the measurement distance to 180cm, allowing for a maximum sample size of 22cm and up to 4kg.

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The BaseSpion from Viso Systems is a mid-sized, bench-top type C goniophotometer. It features motorised, two-axis motion and can measure lamps and luminaires up to 22cm square or 54cm diameter and up to 9kg. An optional high speed photometer allows you to also measure flicker.

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The LabSpion from Viso Systems is a floor-mounted, full-size
type C goniophotometer. It features motorised, two-axis motion and can measure the very largest of lighting products, measuring up to 150cm square or 6m linear and up to 25kg. An optional high speed photometer allows you to also measure flicker.

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Labsphere Type A Automotive Goniophotometer

 

Labsphere Type C Moving Mirror Goniophotometer

   
Labsphere Type A Automotive Goniophotometer   Labsphere Type C Moving Mirror Goniophotometer    
         

The Labsphere type A goniophotometer is primarily aimed at those wishing to test automotive lighting (headlamps and marker/side lamps) as well as traffic signals and retro-reflectiive materials. It has the added capabiity of simulating a type C goniometer to produce IES files by tilting the luminaire. Headlamps must be measured at 25m.

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The Labsphere type C moving mirror goniophotometer is a large format mirror goniometer which brings the benefits of C-type vertical photometry in a full size package. Ideal for measuring almost any size of lamp or luminaire, from small lamps to large fixtures, indoor luminaires and outdoor luminaires. The moving mirror motion system satisfies the requirements of IES LM79-08

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