Quick Guide To Safe Laser Installation – With Alberto Kellner

Quick Guide To Safe Laser Installation – With Alberto Kellner

Quick Guide To Safe Laser Installation - With ArgonTV

Quick Guide To Safe Laser Installation 

With Alberto Kellner

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Quick Guide To Safe Laser Installation – With Alberto Kellner

 

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Quick Guide To Safe Laser Installation – With Alberto Kellner

 

Alberto Kellner: Hello everybody.

 

Welcome on ArgonTV.

 

I’m Alberto Kellner from Laser Entertainment, Italy and I am also a LSO (laser safety officer).

 

Laserent advertising for Laser entertainment

 

These are very basic principles to set up your laser projector in a safe way and prepare your first laser show in a safe way.

 

A laser show must be safe at all times for all the people involved in the show.

 

It means the audience, all the technicians and the artists if any.

 

This means that the laser light must not cause any injury or damages to eyes, the skin or to any thing in the venue.

 

The laser light must not create a potential injurious conditions, such causing a fire ignition, for instance to the curtains of the venue to the seats of your theater or other materials around the show area.

 

You probably have a laser projector similar to this.

 

This is very common laser projector on the market and I will show you today how to connect the laser in a safe way and to prepare the show as safe as possible.

 

You are ultimately responsible for the laser show safety, so do not represent the show which is dangerous or potentially unsafe.

 

Do not allow others to override the safety consideration, such as a show producer or clients that ask you to make some changes regarding safety for you and for your audience.

 

Since you are ultimately responsible for the laser show and its consequence, means liability.

 

Before to start your projector you have to connect it safely.

 

First of all, you have to connect the power, then the remote interlock control, then your power data connector to your controller or the db25 cable depending on your different control and then be sure you have a safety cord, a steel safety cord, to ensure your projector to the beam or the truss to avoid the fall of the projector itself.

 

Then you can switch the power button on, then turn the keys on and on your remote controller, you can switch the key and then the start.

 

You see the projector starts to work and connects with your controller.

 

Laser show must be continuously monitored, so that hazardous conditions can be detected and the laser emission will be immediately terminated or within a few seconds.

 

You can use a trained laser operator or you can hire an expert laser operator, who knows which are the hazardous condition to monitor and to control your show that will be safe.

 

Laser safety standards and guidelines should be followed at all times, especially during the setup installation, the show rehearsal, when performers are on stage and of course during showtime.

 

For some people, such performers, they may need the special safety measures to make the show safe for them.

 

Please remember, do not point any beams or any other laser effects directly into audience.

 

If you want to proceed with audience scanning, you need to be specially trained and makes a measurement to keep the laser under the MPE.

 

MPE is the maximum permissible exposure, but since this part is pretty difficult and need to be understand very very well, at this time we do not consider audience scanning.

 

This will be treated in the future chapter.

 

Most countries have laser safety requiring certain features on a projector.

 

For example, in Europe a projector must have a safety feature specified by the laser product safety standard EN60825-1:2014, to be compliant with CE marking and even in the States, there are some different regulations.

 

So please check with your country regulation to be sure that you apply the correct regulation for your country.

 

Sometimes you also need an additional certification to perform your show made by an external third party, such as TUV in Germany or other agencies around Europe.

 

In the USA you must be certified by the manufacturer or the distributor to the U.S Food and Drug Administration Center for device and radiological health.

 

CDRH.

 

Anyone using a class 3b or class 4 laser projector is a manufacturer under CDRH regulations and must themselves have a variance under the CDRH.

 

The specification should present the laser safety class.

 

This also will be printed on the set laser safety levels on your projector.

 

Class 3b is for projector between 5 millimeter and 500 milliwatts.

 

Class 4 is for projector with a power of 500 milliwatts or above.

 

Into the U.S minimum necessary parts for a laser projector are; a key switch, an emission indicator that indicates the laser light is about to be emitted or is actually emitted, a remote interlock control connector with the emergency stop box or mushroom button with the capability to terminate immediately all the laser beam emissions.

 

And the proper labeling, there should be presented on your projector with caution or warning levels and the manufacturer’s name and address printed on it.

 

Additional safety features such as aperture mask or electronic limits for the scanners at the projector or other beam stops to terminate the laser beam emissions.

 

When you’re doing outdoor shows, remember never illuminate aircraft or helicopters.

 

In many countries this is a felony that brings you directly to jail or face very high fees.

 

Cable runs into the audience, in the venue, please use cable crossing systems to protect your audience from falling and steps into the cables.

 

Always install your projector at high of at least three meters from the ground level or from the audience level and 2.5 meters laterally.

 

Be sure your projector is safe and doesn’t move at all.

 

Place any area signage as necessary, such a safety label that warned people about the use of lasers
in the venue.

 

Verify the laser hardware permanent beam block stops are in place and ensure all safety features to the laser hardware are present, prior to start the laser output.

 

Ensure the emergency stop and shutter function properly and instantaneously.

 

Before start the laser, restrict the access to trained and authorized personnel only before the rehearsals.

 

Then you can turn your computer on or your control system and verify that any data connection to the laser hardware is working properly.

 

Adjust the permanent beam block stops to the designated open position.

 

Verify the shutter is closed, disengage the key switch of the interlock to turning on the switch on the on position or output position.

 

Verify the laser beam path is free of personnel, people, objects, tools or other instruments.

 

Using the lowest possible output power, adjust the laser beam to the desired positions.

 

Ensure necessary physical barriers are firmly in place.

 

If you need to open your laser projector to make maintenance, please wear appropriate personal protective equipment at all times, such these laser safety goggles.

 

Ensure no unexpected reflective items are in the beam path and avoid looking directly into the output beam, even if it is scanned or at low power.

 

Thank you very much for your attention.

 

We see you again very soon on ArgonTV and remember always make safe laser shows.

 

 

 

 

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Disclaimer: All rights reserved. No part of this magazine or content may be reproduced or used without the written permission of the publisher: Argon Animation Inc. All information contained in this magazine is for information only, and is, as far as we are aware, correct at the time of going to press. The views, ideas, comments, and opinions expressed in this publication are solely of the writers, interviewees, press agencies, and manufacturers and do not represent the views of the editor or the publisher. Whilst every care is taken to ensure the accuracy and honesty in both editorial and advertising content at press time, the publisher will not be liable for any inaccuracies or losses incurred. Readers are advised to contact manufacturers and retailers directly with regard to the price of products/services referred to in this magazine. If you submit material to us, you automatically grant Argon Animation Inc a license to publish your submission in whole or in part in all editions of the magazine, including licensed editions worldwide and in any physical or digital format throughout the world and on this website. ©2020

No Laser Safety Officers were harmed in the making of this article.

This post “Quick Guide To Safe Laser Installation – With Alberto Kellner” Was written exclusively for Argon Animation Inc by Alberto Kellner of Laser Entertainment, Italy© 2021

 

 

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