●High-grade processing ●Ease of operation ●Low power consumption ●High efficiency ●Idle-free operation
●Compact size and light weight
●Metal processing ●Welding, tailored blanks, brazing, hardening, etc. ●Heat treatment ●Marking, etc.
Direct Diode Laser （DDL） is laser oscillators designed to condense light beams emitted from the LD stack module
and directly irradiate them onto a target object. Compared to solid-state lasers and CO2 lasers, Direct Diode Laser are
very compact and feature low power consumption.
Features
Applications
Direct Diode Laser
Direct Diode Laser
2
The L11585-02 and L11585-04 are Direct Diode Laser (DDL) that condense light
beams emitted from the internal LD stack module and directly irradiate them
onto a target object. Compared to solid-state lasers and CO2 lasers, these DDL
do not require complicated light-transmission optical systems and feature
compact dimensions and low power consumption. Their condensed light spot is
rectangular and has an energy density optimized for laser processing-machining
applications for high-grade laser processing with less spatter. Applications
include laser welding, hardening, brazing, and heat treatment.
General specifications
Recommended operating conditions
Specifications
Parameter Value
CW
f = 100
30
+5 to +40
0 to +50 (+5 to +35)
Approx. 165 × 160 × 414 (not including projecting parts)
Operation mode
Lens
Humidity inside DDL
Operating temperature
*1
Storage temperature
*1*2*3
(Recommendation)
Dimensions (W × H × D)
*4
*1 No condensation
*2 Drain the water from DDL if there is a risk of freezing.
*3 Storage temperature is the temperature range for storing or transporting a DDL after installing it into equipment. Values in parentheses indicate the recommended
temperature range for storing a DDL before installing it into equipment.
*4 Dimensions and weight may change depending on the attached options.
Parameter Value
Unit
Unit
1.0
+20
1.5
+25
—
mm
%
°C
°C
mm
µS/cm
°C
L/min
°C
Cooling water conditions
(at cooling water inlet)
Dry air conditions
*1
*1 When using compressed air containing oil mist (oil mist concentration of 30 mg/m
3
[ANR] or more), a prefilter must be used to remove the oil content.
If moisture might possibly contaminate the supply piping, a water separator must be used to remove water droplets.
Constantly inject dry air into the DDL, regardless of whether it is operated or not (stored) except during shipping.
Conductivity
Temperature
Flow rate
Temperature
Parameter Conditions Unit
A
V
nm
mm
mm
mm
kg
Operating current
Operating voltage
Peak emission wevelength
Beam focus diameter
*1
(FWHM)
Working distance (design value from housing tip)
Weight (excluding cooling water)
Vertical direction
*2
Horizontal direction
*2
Radiant power： 2.0 kW
Typical value
80
46
940
0.35
1.25
87.0
12
●L11585-02
*1 Beam profile area is within ±15 % of typical value (0.35 mm x 1.25 mm = 0.44 mm
2
).
*2 Directions are relative to bottom of housing. The short axis of the condensed light spot is perpendicular to the bottom of housing. (See the schematic view of main
laser beam and guide beam (not visible) directions.)
The condensed light spot size can be changed by replacing the condenser lens and condenser lens unit at the DDL tip.
Cooling water flow rate： Approx. 10 L/min, Cooling water temperature (at inlet of DDL)： 20.0 °C ± 0.5 °C
Parameter Conditions Unit
A
V
nm
mm
mm
mm
kg
Operating current
Operating voltage
Peak emission wevelength
Beam focus diameter
*1
(FWHM)
Working distance (design value from housing tip)
Weight (excluding cooling water)
Vertical direction
*2
Horizontal direction
*2
Radiant power： 4.0 kW
Typical value
●L11585-04
88
94
940
0.35
1.25
87.0
13
Cooling water flow rate： Approx. 22 L/min, Cooling water temperature (at inlet of DDL)： 20.0 °C ± 0.5 °C
■Direct diode laser （DDL）L11585-02/-04