1.3 Safety Labels
The laser class labels are provided with the system and the laser aperture is clearly identified by laser warning label
and/or the text
LASER APERTURE
.
WARNING - LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
WAVELENGTH: 400-700 nm
MAXIMUM OUTPUT POWER: <500 mW
IEC 60825-1 Edition 3.0 2014-05
(a)
Laser Classification Label Example
(b)
Laser Warning Label
(c)
Laser Aperture Identification
Figure 1.1:
Safety Labels
1.4 Activation Safety Features
The drivers for all Doric Lenses light sources come with a number of safety features. These are built into the driver
circuits, as shown in the block diagram (Fig.
Figure 1.2:
Safety feature block diagram
• The
Micro-controller
,
Key Switch
,
Interlock Plug
and
Current Driver
are connected in series. This means that
if any single safety feature is not properly in place, the light source cannot be activated.
• The
Micro-controller
is used to control the light source driver.
(a)
Key Switch
(b)
Interlock Plug
Figure 1.3:
Safety Feature Elements
• The
Key Switch
(Safety feature 1) (Fig.
), located on the left side of the driver, is required to activate any
light source. If removed, no data can be sent from the micro-controller to the
Current Driver
.
• The
Interlock plug
(Safety feature 2) (Fig.
) is used to integrate the driver into an
Interlock Circuit
.
–
The
Interlock Plug
comes with a small wire short-circuiting it. This wire must be removed before integrating
it into an
Interlock Circuit
.
Chapter 1. Important Safety Information
4
