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Safety Information  

Warning! This product is not for household use.  

Read this manual before installing and operating the Labarazzi. Follow the safety 
warnings listed below and study all the cautions in the manual. If the device is in any 
way damaged, defective, wet, or show signs of overheating, disconnect from the 
mains and PC and contact Viso Systems Service for assistance. Do not install or use 
the device outdoors. Do not spray with or immerse in water or any other liquid. Do 
not remove any covers or attempt to repair the controller or the power supply. Refer 
any service to Viso Systems.  

Disposing of this Product 

Viso Systems products are supplied in compliance with Directive 2002/96/EC of the 
European Parliament and of the Council of the European Union on WEEE (Waste 
Electrical and Electronic Equipment), as amended by Directive 2003/108/EC, where 
applicable. Help preserve the environment! Ensure that this product is recycled at 
the end of its lifetime. Your supplier can give details of local arrangements for the 
disposal of Viso Systems products.  

Introduction 

About Labarazzi 

Th

e special Viso accessory “

Lab

arazzi”

 a light source with selectable modulated light 

waveforms of different modulation levels and shapes to emulate flicker and 
stroboscopic effect having various visibility and perception properties that can be 
used for demonstrations and test purposes of TLAs (temporary light artifacts). 

Labarazzi works both as a stand-alone unit and connection with Viso Light Inspector 
software, that can be downloaded fro

www.visosystems.com

The Labarazzi light source has several applications: 

 

In research projects investigating TLA and human responses 

 

For TLA tester calibration 

 

For demonstration of flickering light 

 in education and sales 

 

For test of (video-) cameras an compability with flickering light sources, 
e.g. in TV  

About this document 

These guidelines describe the installation process of the Labarazzi and how to use it 

with any of Viso Systems’ photogoniometers.

 

 

© 2021 Viso Systems ApS, Denmark 

All rights reserved. No part of this manual may be reproduced, in any form or by any means, 
without permission in writing from Viso Systems ApS, Denmark. Information subject to change 
without notice. Viso Systems ApS and all affiliated companies disclaim liability for any injury, 
damage, direct or indirect loss, consequential or economic loss or any other loss occasioned by 
the use of, inability to use or reliance on the information contained in this manual. 

Summary of Contents for VISO SYSTEMS Labarazzi

Page 1: ...1 VISO SYSTEMS Labarazzi User Manual Date of creation 31 08 2021 Date of last edit 07 10 2021 ...

Page 2: ...he feature operating information and troubleshooting necessary to install and operate your new Viso Systems product Please review this manual thoroughly to ensure proper installation and operation For news Q A and support at Viso Systems visit our website at www visosystems com Other manuals in this series can be downloaded from www visosystem com ...

Page 3: ...ocedure 6 Using Labarazzi in stand alone mode 7 Flicker Metrics 7 Flicker Frequency 8 Flicker Percentage PF Modulation Depth MD 8 Flicker Index FI 8 New flicker metrics 8 SVM Stroboscopic visibility measure 9 PstLM 9 Using the menus 9 Main menu 9 Signal Presets 10 Software Setup and Custom Signals 11 Specifications 12 Physical dimensions 12 Signals 12 Photometric 12 Electric 12 Warranty 12 Orderin...

Page 4: ...urce with selectable modulated light waveforms of different modulation levels and shapes to emulate flicker and stroboscopic effect having various visibility and perception properties that can be used for demonstrations and test purposes of TLAs temporary light artifacts Labarazzi works both as a stand alone unit and connection with Viso Light Inspector software that can be downloaded from www vis...

Page 5: ...les All dimensions in millimeter Packages and Weight Shipping Packages Shipping Dimensions Shipping Volume Weight 1 Labarazzi 220 x 155 x 130 mm 0 0044 m3 1 6 kg Total shipping weight 1 6 kg The shipment is done in a total of 1 package Labarazzi Package Content 1 Labarazzi Unit 2 m angled power cable Schuco 2 m USB 2 0 cable ...

Page 6: ...ection to PC with USB cable and install Light Inspector software from https www visosystems com download light inspector software development finalised 2021 11 When using the Labarazzi to feed a control signal to other devices Connect to other devices with Sync cable BNC not included Put the Labarazzi on the desk lying down light source facing backwards e g on a wall on the desk standing up light ...

Page 7: ...lected signal in image flat no signal chosen Flicker Metrics Flickering light is a problem at low frequencies and can trigger headaches fatigue and migraine attacks at higher frequencies even if the effect is not visible There are huge differences in how much people are affected by flickering light Flicker and stroboscopic effects are only found to a negligible degree in incandescent bulbs as the ...

Page 8: ...ders the waveform of the light output as well as its amplitude 1 The flicker index assumes values from 0 to 1 0 with 0 for steady light output Higher values indicate an increased possibility of noticeable lamp flicker as well as stroboscopic effect Again from the figure above 𝐹𝑙𝑖𝑐𝑘𝑒𝑟 𝐼𝑛𝑑𝑒𝑥 𝐴𝑟𝑒𝑎 1 𝐴𝑟𝑒𝑎 1 𝐴𝑟𝑒𝑎 2 New flicker metrics Flicker Index and Flicker Percent are not suitable to describe the e...

Page 9: ...etc The SVM value can be read as SVM 1 Not Visible SVM 1 Just Visible SVM 1 Visible PstLM Visible flicker typically occurs when the frequency is from 0 3 80 Hz In this area the metric Pst LM is used the abbreviation comes from short term light modulation The details are described in IEC TR 61547 1 and IEC 61000 4 15 The Pst LM values in general can be read as Pst LM 1 Good Pst LM 1 50 detection le...

Page 10: ... WF2 Square 100 50 0 25 50 0 36 2 48 WF3 Square 15 5 0 30 50 11 83 0 06 WF4 Square 50 5 0 03 50 0 53 0 19 WF5 Square 60 100 0 50 50 3 27 4 77 WF6 Square 60 15 0 07 50 0 49 0 72 WF7 Square 65 100 0 50 50 1 88 5 05 WF8 DC None 0 0 00 None 0 00 0 00 WF9 Saw 50 100 0 25 50 5 27 1 97 WF10 Sine 50 5 0 25 50 0 41 0 15 WF11 Square 50 100 0 02 30 0 41 0 15 WF12 Square 50 100 0 70 95 14 35 5 48 WF13 Square ...

Page 11: ... Hz WF22 Sine 100 10 0 03 50 0 01 0 39 WF23 Square 8 8 0 3 0 00 50 0 88 0 00 WF24 Square 33 3 1 0 01 50 1 00 0 02 WF25 Square 0 3 1 3 0 01 50 1 01 0 00 WF26 Square 100 100 0 50 50 0 72 4 96 Software Setup and Custom Signals Software development pending finalization 2021 11 ...

Page 12: ...e triangle saw cosine PWM Modulation depth 0 100 Frequency bandwidth limitation 0 Hz to 10 000 Hz Photometric Light source output 0 to 1100 lumen 300 mA Light source type Bridgelux BXRC 30E1000 D 73 Light quality CRI 80 CCT 3000 K Electric Connection Schuco mains cable Power 85 264 VAC 40 W Warranty Warranty period 2 years from delivery date Ordering information Labarazzi product number P N LABARA...

Page 13: ...elop and manufacture OEM and customer specific goniophotometer solutions Our mission is to support customers with powerful yet easy to use control and measurement solutions Products are developed and manufactured in Copenhagen Denmark ...

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