EPREL Lighting data
NEW EU LEGISLATION This year, new eco-design requirements will apply to almost all lighting products marketed in the EU. Importers and manufacturers are responsible for compliance. A central obligation is […]
Dialux Evo simulation
Using UV light in germicidal applications is popular. A new video introduces a method that allows you to design UV lighting installations with DIALux Evo 9.2. In this way, you […]
Nichia LED - germicidal violet
There are interesting news from Nichia: A dual purpose LED that offers quality light and germicidal benefits. A strong peak at 405 nm means that this LED can deactivate bacterial […]
Spectrum - unsplash
How can you explain germicidal UV doses? Which wavelengths are effective in disinfection? Which UV light source technologies are available today? How can I measure UV and effectiveness? These questions […]
UV light exposure chart
Measuring UV Light for disinfection (UVGI – UV Germicidal Irradiation) can be more difficult than visual light. There are more parameters and risks. It is difficult to compare solutions.Viso takes […]
DTU Fotonik logo
Light measurement standards require LED lamps and luminaires to be placed in their normal burning position during measurement. Further, rotation during measurement should be minimized to keep natural cooling. Doing otherwise would certainly lead to gross errors when measuring old […]
Accuracy in light measurements
A giant international interlaboratory comparison, IC2017, including 37 light measurement laboratories in 18 countries was conducted in 2017 through 2019*. General results are not yet public, participating labs have received their own results. In […]
Integration time photometry
CMOS (linear image sensor) integration time can be defined as the period over which the spectrometer collects photons in every goniometer measurement point. The length of this time is important: […]
Building your own photometry lab
Traditionally, a photometric laboratory took up lot of space, but a measurement system from Viso will fit in almost anywhere. Many clients ask for advice in terms of lab sizing, […]
UV radiometry
With Viso’s LabSpion goniophotometer combined with the new LabSensor UV-VIS you can test visual light and do UV measurements in one session. This special sensor allows for full 3D light […]
Slideshow
Many clients asked us to explain the fundamentals of glare and UGR. A standard Viso report output is the UGR table. This 9-minute video will give you insights and overview
Viso Systems is open for business. The COVID-19 situation is under control and we are all well. Now is the time to prepare new products and serve existing clients with […]
Slideshow
A happy UK-distributor sent us this time-lapse video.The complete LabSpion assembly was performed in about 22 minutes. See the video here.
Flicker Measurement with LabFlicker
he U.S. Department of Energy has published a full report entitled, “Characterizing Photometric Flicker – Handlheld Meters” and if you want to brush up on your understanding of flicker this […]
Labflicker Video PstLm SVM
The LabFlicker has just had a new software update where the PstLM was added. The LabFlicker now covers the whole range of flicker measurement standards. Visit the LabFlicker product page […]
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