Table 4: Geo Correction
Table 5: Color Settings
Table 6: Scan Guard
Page 10
Page 3
Master
Settings
X Shear
-100-+100
Invert Y
x /
√
0
Y Shear
-100-+100
0
Knowing what the MPE and exposure level is for a given laser effect is quite a complex
and involved process to establish. For it is dependant on a whole number of conditions
and variables that need to be taken into account. The laser safety standard BS/EN 60825-1
contains the data required to calculate the safe levels, but it is not straightforward to
interpret. Laser Safety Calculation Software has been developed to help ease the task of
establishing laser effects exposure.
The BS/EN60825-1 Laser Safety Standard recommends that all establishments that use, or
businesses that work with Class 3B laser products, should appoint a Laser Safety Officer
(LSO). The Laser Safety Officer should be aware of the safety issues when using lasers,
and is responsible for overseeing how the laser is used. In smaller businesses, the LSO
will probably also be the installer, operator, owner etc.
The worst case effect to look at directly is a static single beam, because all the light energy
is concentrated into one point.
Y Postion
-100-+100
100
Z Postion
0-359
0
There are no specific “laser laws” or any “laser licences” that anybody needs in order to
own or operate a laser for lightshow use. However, there is specific guidance issued by the
Health and Safety Executive in the form of a document called HS(G)95 The Radiation
Safety of Lasers Used for Display Purposes. HS(G)95 outlines a number of detailed points
to consider when using lasers for lightshow purposes.
Class 3B and 4 laser products are required to have several specific safety features as part
of their design. These features are laid out in the British Standard on Laser Product Safety
BS/EN 60825-1 and are a requirement of the product meeting CE approvals. The
important ones are listed below:
Geo
Correction
-100-+100
100
X Postion
1) Laser Safety Warning Labels
2) Emissions Indicator
3) Remote Interlock Connector
Audience Scanning
Audience Scanning is the term commonly used to describe when laser effects are being
directly aimed at the viewing audience. This creates a very dramatic looking effect, as
people can touch the light, and look down smoky tunnels. But because the laser light can
touch or scan past people’s faces, it also carries a risk that it could cause damage to people
’s eyesight, if they are overexposed to the laser light.
The amount of laser light that a person can be exposed to without it causing harm to
eyesight is known as the Maximum Permissible Exposure or MPE. These levels are
defined the in the British Laser Safety Standard BS/EN 60826-1. When people are
exposed to laser light which is above the MPE, it poses a risk of causing eye damage. This
could be of concern when the laser effects are viewed directly in the face or there is a
chance that they could be.
X Scale
-100-+100
100
X Scale
-100-+100
100
Swap XY
√
/x
x
Function
Range
Default Value
x
Rescan Time
0-999
500
Min Velocity
0-300
30
Dwell Time
1-300
45
Scan
Guard
Enable Gurad
x /
√
x
Horizon Level
0-100
49
Horrizon Angle
1-(-45)
-45
Cyan
0-100
100
Function
Range
Default Value
Deep Blue
0-100
100
Yellow
0-100
100
100
Green
0-100
100
Blue
0-100
100
Function
Range
Default Value
Color Shift
0-7
100
Color
Settings
Red
0-100
