V10517
Specification
Parameter
Power output (max)
Wavelength
Power Output Stability @ 20°C (max)
Power output temperature dependence
Beam size
Polarisation Ration
Pointing Stability
Operating Temperature (max)
Warning
Laser radiation is emitted from the aperture of this component.
Do not stare directly into beam or view with optical instruments.
Consult BS(EN)60825-1: 1994 or superseding document for guidance
on labelling and safe use of the component in a system.
Introduction
This device has been designed as a complete laser diode system for
O.E.M. use and although the output power has been set in accordance
BS(EN)60825, this module is not a certified laser as defined in the
specification. When incorporated in a piece of equipment it may be
necessary for additional safety features to be added before equipment
complies fully with the standard. BS(EN)60825 is essential reading
before using this product. Suitable warning labels for complete
equipment may be found in the Signs and Labels section of the RS
Catalogue.
Description
The laser module consists of a laser diode, lens and driver circuit
housed in a threaded metal barrel with a plastic cap forming the rear
enclosure. Electrical connections are made via a miniature, two pin,
latching connector. The lens fitted as standard is a single element of
aspheric design which produces a high quality collimated beam over a
long distance. Its position can be adjusted to bring the beam to a
focused spot. The standard lens may be replaced by other optical
systems.
Electrical characteristics
Parameter
Operating voltage
Operating current @4.5V
Operating current @5.5V
Connections
Absolute maximum ratings
Supply voltage ______________________________________+8V
Storage temperature____________________________-40 to +85°C
Electrical connections
Electrical connections are made via the pre-wired plug as follows:
Green ____________________________________________0 Volts
Red ________________________________________________Vcc
2
213-3562
0.8
635
3
15
2.00
10:1
0.05
-10 to +30
Value
Min
Typ
Max
4.5
5.5
65
68
2 pin socket
(Pre-wired plug supplied)
RS Stock Number
213-3584
3
635
3
15
4.5 x 2.5
10:1
0.05
-10 to +30
Power supplies and earthing
This laser diode module must be operated from a regulated, positive
supply of 5V. The case is isolated from the supply. It is advisable for
any floating power supplies to have the '0' volts connection (and if
used, the heatsink) taken to the ground. If this is not done, then in
electrically noisy environments, the power suppy leads can act as
aerials. Under these conditions any noise picked up could damage the
laser module. If a heatsink is not used, then the barrel of the laser
module should be grounded.Connections are made via the two pin
latching connector, the mating half is supplied pre-wired, with 500mm
of 7x0.2mm PVC insulated wire (red positive and green is negative).
Heat sinking and mounting
When operating at elevated temperatures, these modules may require
an additional heat sink. If the case temperature of the embedded laser
diode should exceed its maximum specification, premature or even
catastrophic failure may occur.
The laser diode module should be mounted into a metal bracket or
bulkhead using the threaded barrel. Thermal transfer cream can be
used to improve contact and heat dissipation.
Laser safety
All laser devices produce beams of intense monochromatic light which
can present potential biological hazards. These hazards depend on a
number of factors including the wavelength, the power or energy of the
beam and the emission duration. The eye is the most vulnerable organ
as it will tend to focus light from the laser on to the retina, thereby
increasing the energy density many times.
Complete information on laser safety and laser classification can be
Units
found in the specification BS(EN)60825 which is essential reading for
all users.
volts
mA
mA
RS Components shall not be liable for any liability or loss of any nature (howsoever
caused and whether or not due to RS Components' negligence) which may result
from the use of any information provided in RS technical literature.
213-3590
213-3607
0.8
3
670
670
3
3
15
15
2.00
4.5 x 2.5
10:1
10:1
0.05
0.05
-10 to +40
-10 to +40
Units
mW
nm
%
µW/°C
mm
mRad
°C