General FAQ

I got a brand new laser, but it doesn't seem to work. What shall I do?

Before calling your vendor our our service line, please check the following points:

- do you use the right operation voltage?

- is the environmental temperature not below 10°C?

- is the interlock connector plugged in (if there is a interlock connector, of course)?

- is the key switch turned to "on"?

- if there is a mechanical shutter: is it moved aside?

- doese the laser only not work in one operation mode (sound, auto, ILDA - as far as the options are available for your unit)?

- if operated in ILDA mode: Do you operate your software properly? (Interface connected, cable properly attached, laser output activated in software, right interface selected for output in software?)

- if operated in ILDA mode: Do you try to project a single beam or a very small pattern? Probably the scan fail safety blocks that (it only does if switched to full block mode! This is not the standard option.)... please try a larger pattern.

What blue color is best visible - 405nm, 445nm or 473nm?

In terms of visibility, the Nanometre values that are nearer to 550nm are better than values farer away.
Please see the visibility curve below:

visibilitycurve

Due to this chart, the 473nm is best visible. However, this color is more cyan than blue, and thus cannot create a good royal blue. In terms of color spectrum the 473nm is much worse than the 445nm.

The 405nm blue in contrast is nearly not visible and thereore needs a lot of power to become visible. As there is not much advantage (and even some disadvantages) compared with the color spectrum of the 445nm, Laserworld decided to mainly feature the, as we think, optimum visibility - color-range combination.

For OPSL systems we often use a combination of several blue color ranges to get a better colro spectrum. Please ask us if you need further details about that.

Is your laser control software Mac / Apple compatible?

There is actually no known professional showlaser software in the market, that works on MAC / Apple operating system. However, it is possible to operate all software products, that we offer, in a Windows emulated environment on Mac systems.

There are several technical limitations that make it tricky to just switch existing software solutions to Mac OS ( e.g. deep integration with DirectX or OpenGL and similar Windows APIs).

Do you sell any waterproof lasers?

Yes, Laserworld offers a large number of waterproof lasers:

All RTI NANO units are IP65 waterproof, meaning they can be used outdoor in the rain.

For even more advanced use we offer the SwissLas High End units, which are IP67 rated - so you can even place them under water.


Please ask for further details if needed: This email address is being protected from spambots. You need JavaScript enabled to view it.

Do you offer a white light star effect?

No, this is physically not possible with the kind of laser sytsems we use in showlaser technology nowadays.

Every color spectrum is deflected in a different way, so if you have a multi color input, you get the colors split up as well. That's why it is physically not possible to generate a white star effect with the use of a deflection grating.

Simple grating effects are used in the very common Star Effect Lasers (like the EL-100 MICRO), but also in professional systems like the TARM Beamtable.

Grating effects can also be used with mirrors (BURST-10, LIN-10) and give multi-star effects.

It is possible to have a RGB star effect (like the CS-800S), but its physically not possible to do white.



Do I need special knowledge to operate a laser projector?

In general there is no deeper knowledge necessary to operate a laser projector in a physical sense. However, laser light may be quite dangerous if it is not properly used.

Due to the coherence of the laser light (same direction and wave characteristics of the light - different to normal light sources), the very sharp rays can be dangerous to human eye or immission sensors.

However, if you respect you local laser safety regulations, it is possible to make a safe laser show.

The regulation IEC 60825-1 is internationally valid and provides information about laser safety terms. Most countries refer to that regulation in context of laser safety.

However, some countries may have much more fear of the "laser mystery" and thus may have stricter regulations.

The responsibility for laser operation is with the actual operator. So being careful is most important.

Some things we recommend to respect:
- never shoot single beams to the audience. You may shoot them above their heads (min height 3m) as strong as you like.
- use a safety shut-off option (button etc.) to be able to switch of the system, e.g. if somebody tries to manipulate the lasers during operation or if somebody enters the laser safety area
- keep people under age away from laser devices
- familiarize yourself with laser safety prior to operation. Some countries (very few only) may need a Laser Safety Officer on site during operation
 
Laser projectors are not dangerous themselves - the danger always comes from improper operation.

 

What is the difference between optical effects and normal scanners?

Optical effects are created by using a certain glass/mirror structure mith micro structures, that deflect or manipulate one laser beam hitting the optical component, so that a special effect is generated. Optical effects are e.g. burst grating, line grating, shot beams, etc.

Also the glass gobos in the ES-180S RG are optical effects.

The advantage of optical effects in contrast to normal scanners is, that there is no flickering with optical effects and the deflection angle can be much wider than with scanners. Anyway, the flexibility of scanner systems can not be achieved, as the effeect is limited to the built-in optical effetcs.

Our Beamtable products, e.g. combine optical effects with scanners. That's why they are also called optical benches.

 

Do I need fog or haze to make the laser beams visible?

You always need a surface to reflect the laser light. This can be fog or haze for beam shows, or all kinds of screens for projections. Very common screen types are waterscreens, gauze screens, rear projection screens or fog screens.

All 3D-like projections with lasers also need kind of a surface to be reflected on!

It is not possible to create laser-sword like effects: You cannot "terminate" the laser beam somewhere, it can physically not be terminated without having an end-point (surface).

Laserworld recommends to use a haze machine for indoor beam shows to get the smoothest effect.

It is definitely not possible to see any laser beams in the air without having particles in the air!

 

Can I make 3D projections in the air with lasers?

You always need a surface to reflect the laser light. This can be fog or haze for beam shows, or all kinds of screens for projections. Very common screen types are waterscreens, gauze screens, rear projection screens or fog screens.

All 3D-like projections with lasers also need kind of a surface to be reflected on! Real 3D is not possible without having a 3D surface.

BUT: You can of course generate 3D look-alike projections with our systems. If you need support in doing that, please contact us - we have specially skilled professionals for high end shows.
You cannot create 3D-like projections in the air, but if you have a kind of surface (e.g. in betetween of two buildings), it is no problem to do so.

Unfortunately laser light cannot be "terminated" somewhere without having an end-point (surface).


I want to terminate the laser beam after about two metres, like the laser swords in Star Wars. How can I do that?

It is not possible to create laser-sword like effects: You cannot "terminate" the laser beam somewhere, it can physically not be terminated without having an end-point (surface).

Light can not be ended somewhere, it can only "fade out", meaning intensity is reduced with greater distances. But this is of course not feasible for a "laser sword".

Please also read the FAQ regarding projection surfaces

 

Why are laser projectors so expensive?

Lasers are cheaper than ever befor: About 10 years ago, prices were at minimum 100.000 Euro for 5W RGB (or at least at that range). The units were water cooled and needed huge power supplies.

So lasers are very affordable nowadays.

 

How can Laserworld give a Lowest Price Guarantee for their projectors?

Laserworld sells about 3000 to 4000 lasers per month. Due to that high volume and a strong worldwide dealer network it is possible to guarantee our dealers the very lowest price for comparable systems.

As show laser experts Laserworld continuously develops new products and makes cooperations with partners all over the world.

Please see our Distributed Brands for further details.

Laserworld knows well about their strong market position and thus is able to offer their products ar very competitive pricing. The major target of our sales strategy is volume sales - and thus we are able to give our dealers a Lowest Price Guarantee for our showlaser.

You find the details about our Lowest Price Guarantee on our website.

 

Why does Laserworld always give minimum and maximum values for their laser products?

It is physically not possible to give exact power values of show lasers, as several factors influence the power.

Especially DPSS (Diode Pumped Solid State) laser modules are quite sensitive to exterior influences like temperature and excessive shock. 

DPSS modules consist mainly of three sections:
- a pump energy source (where there may be slight differences in power),
- a resonation area (that consists of two reflection mirrors that must be absolutely parallel - small deviations lead to reduced output)
- a crystalline structure as laser active material (which is naturally grown and thus may differ in quality).

As it can be clearly seen there are several physical cases for haveing differences in output power - even if the lasers are built the same way. Other influences come from optical components like lenses etc and from the electronics components.

Temperature is a crucial factor for output brightness: Even at 10°C a DPSS module may give no output any more! So make sure to operate it in the temperature range specified by the manufacturer.
 

Why do we give a power range though instead of a single value?

- The minimum power is what we guarantee - if your product is rated below the minimum specified power value on purchase, this is a warranty issue.

- The maximum power is what the laser could maximum have as output. This value is especially given for safety purposes to have a proper base for safety zone definitions.

It is not possible to give exact power values for a large number of lasers - this is only possible for the very single laser head and cannot be predicted without measurement.

Why can all commercial customers (except CH and FR) purchase from Laserworld without being charged any taxes?

Laserworld is based in Switzerland. Our European customers have a huge advantage of this: We deliver our products to you as intra-community shipments - and thus you don't have to pay the VAT (for commercial customers with VAT ID, not for cutormers from France and Monaco). In combination with our quite affordable shipping costs and our extremely fast shipment to Europe (one 1 day shipping time to whole Europe!!!) this is a huge advantage for our European customers.

Why does Laserworld ship Express?

Due to the high parcel volume, Laserworld gets very good shipping conditions at all. As Express shipment costs are quite the same as standards shipment, we're proud to be able to offer you Express shipment without additional costs.

You don't pay more - you get express shipment at the price of standard shipment!

 

Do I need to pay additional import duties on package receival?

European customers get their parcels DDP (Deliver Duty Paid), meaning that Laserworld does all the import handling and customs clearing: You purchase just as if you purchase from somwhere else in Europe. No extra duties are charged to you.

 

How are the different colors created with lasers?

With a fullcolor solid state laser, (at least) three different laser modules are used together. White light as well as mixed colors are generated by the additive color mixture of red, green and blue (like e.g. the TV set). Color shades are produced with the partial switch-off or the dimming of single colors, which is so called "analogue modulation".

To increase output power or to create a larger or more vivid color range, it is possible to mix even more than three colors (e.g. we do so in most of our RTI NANO systems). It needs some knowledge to operate such systems properly.

The wavelengths of the individual laser modules define the color. That's why it is very important to have the "right" red and the "right" blue to get good visibility with a good color spectrum at the same time.



How does human eye perceive (laser) light?

The human eye perceives the different wavelengths of the visible color range with a different intensity. The optimum is at 555nm - the green DPSS as RGB elementary color meets this as the most closest.
Therefore it is decisive to find the perfect balancing act between best power distribution and largest green part in order to match the best possible visibility.
The closer the nanometer is to this optimum (up and down), the brighter is the perception of a color. However, this visibility curve looks not like a common „bell“-curve and therefore brings special characteristics in the blue and red color range with it.
In a comparatively wide spectrum (ca. 405-465nm), blue colors can reach a radical increase in visibility by adding green laser light. This way the 445nm SwissLas modules become extremely bright and e.g. also show colors in the near 473nm range.
In the red spectrum this isn‘t possible, as you can see in the chart: With just a little addition of green, the mixture immediately turns into orange.

 



What do I need to respect in terms of laser output power?

In order to compare lasers worldwide, it is common to specify the effective outputpower, which is the most important criterion for objective comparison of lasers.
It is specified in Watt or milliwatt (1W = 1000mW).
Power is measured directly at the aperture of the laser source and before all optical components.


Power distribution:
Most important for the visibility of laser light is the balanced power bistribution on the base colors. A full color laser system (or: RGB system) should give a perfect balanced, white laser light. The white light can be balanced by reducing single base colors. If a single color needs to be reduced in power in a greater extent to get a balanced white, e.g. the green laser, effective overall output
power of the laser system is reduced as well. That‘s why it is very important to have the laser components in a projector at harmonized power. Especially important are the wavelengths of the individual colors (please see other FAQs)
All Purelight, Tarm, RTI and SwissLas units give a perfect white output in a range from cool white to warm white

 



How do you ensure product quality?

Laserworld has nearly 100 testing stations in the headquarters in Lengwil (CH), where all our produtcs are 100% tested and a detailed quality control process takes place.

We not only test the products very much in detail, but also use the feedback in our testing range to continuously improve our products and inspire the development engineers.

 

How can I evaluate the quality of a laser projector / laser display system?

It is not the power that defines the quality of a showlaser system, but several other factors that dramatically influence quality and visibility.

E.g. is a PM-1300RGB even better visible than a CS-2000RGB - even though the latter has more power.

Factors for evaluation are:

  1. Laser power
  2. Laser diodes:
    • Light color (wavelength): Decicive for visibility per mW power
    • Type of laser diodes: Reliability and beam shape (and due to that possible limitations in beam distance)
    • Quality of laser diodes as well as beam specifications: Specifications for more advanced applications
  3. Laser projector hardware (housing, electronics, scanners):
    • Different control options: Specify the field of use
    • Type and speed of scanning: Specify the ability of doing graphics projections

 

How can I identify a very good and quality laser system?

It is very important that the laser light is in a good visible color spectrum as well as the diodes have a very low divergence. The beam diametre at aperture is normally not relevant, especially over longer distances.
The laser beam should have a round beam shape in all colors, so all colors match 100% and give a perfect white.
The scan speed should fit the requirement (the more complex the application, the faster scanners are needed)
The laser output power should fit the application (use our Laser4U tool to select the right laser)
A professional laser display system should be computer controllable (and should be controlled by computer)

 

Isn't it expensive to purchase from Switzerland?

It's not expensive to purchase from Laserworld! Not only do we give a Best Buy Guarantee for our products, but we also improved shipping processes and costs:

- Extremely fast shipments with express shipment - at the price of normal standard shipment
- Intra-community shipment to the whole EU (except F and MC) - also for all customers from Germany! Commercial customers from the EU (except F and MC) don't have to pay the VAT on purchase!
- No additional shipping insurance charged

All worldwide customers of course save as well! International shipping costs are too expensive? Please ask us for a solution!

Isn't it expensive to purchase from Switzerland?

It's not expensive to purchase from Laserworld! Not only do we give a Best Buy Guarantee for our products, but we also improved shipping processes and costs:

- Extremely fast shipments with express shipment - at the price of normal standard shipment
- Intra-community shipment to the whole EU (except F and MC) - also for all customers from Germany! Commercial customers from the EU (except F and MC) don't have to pay the VAT on purchase!
- No additional shipping insurance charged

All worldwide customers of course save as well! International shipping costs are too expensive? Please ask us for a solution!


end faq

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