iSi Correlated solutions Blue-X-Lite Operating instructions

Page 1 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
User Manual and Service Instructions for
Blue-X-Lite
Version 1
Support:
Phone: [phone]
Email: [e-mail]
www.isi-sys.com
©2003-2023 by isi-sys GmbH, Wasserweg 8, 34131 Kassel, Germany

Page 2 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
Contents
1. SAFETY AND OPERATION INSTRUCTIONS FOR BLUE-X-LITE.....................................................................................3
1.1. INTENDED USE.......................................................................................................................................................4
1.2. GENERAL SAFETY INSTRUCTIONS FOR BLUE-X-LITE.........................................................................................................5
1.3. TRANSPORT AND STORAGE.......................................................................................................................................5
1.4. INSTALLATION OF BLUE-X-LITE..................................................................................................................................5
1.5. OPERATION OF BLUE-X-LITE.....................................................................................................................................6
1.6. MAINTENANCE ......................................................................................................................................................7
2. BLUE-X-LITE................................................................................................................................................................8
2.1. TECHNICAL DESCRIPTION..........................................................................................................................................9
2.2. CHARACTERISTICS OF THE BLUE-X-LITE.......................................................................................................................9
2.3. EXEMPLARY SETUP SCHEME ....................................................................................................................................10
2.4. FOCUSING MECHANISM AND ILLUMINATION AREA.......................................................................................................13
2.5. OPTIONAL:POLARIZATION FILTER............................................................................................................................14
2.6. OPERATION LIMITS FOR EXPOSURE TIME AND FREQUENCY ............................................................................................15
2.7. DEVICE SAFETY MEASURES......................................................................................................................................16
2.8. RECOMMENDED USAGE .........................................................................................................................................16
3. TECHNICAL DATA.....................................................................................................................................................16
3.1. TECHNICAL SPECIFICATIONS....................................................................................................................................17
3.2. OPTICAL PERFORMANCE ........................................................................................................................................17
4. CONFORMANCE, MALFUNCTION AND WARRANTY...............................................................................................18
5. EU/EC -DECLARATION OF CONFORMITY ................................................................................................................18

Page 3 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
1. Safety and Operation Instructions for Blue-X-Lite
•        
carefully and pay particular attention to the safety instructions. These
contain important information for your protection.
•Save these documents together with the technical brochures and
accessories for later reference.
•These operating instructions are to be regarded as part of the device. If the
device is sold or passed on, the operating instructions are to be included.
•Do not make any changes, additions, or conversions to the device without
isi-sys approval.
If you have any problems, please contact the manufacturer of the system:
isi-sys GmbH
Wasserweg 8, 34131 Kassel, Germany
Phone: [phone]
Internet: http://www.isi-sys.com
Email: [e-mail]
Symbols and Level of Warning Messages:
Risk Group 2 acc. EN 62471:2008 Caution! Possibly hazardous optical radiation!
During operation do not stare into the beam for extended periods. May be hazardous
to your eyes.
WARNING!
Indicates a potentially imminent danger. If not avoided, could result in death or severe injuries.
CAUTION!
Indicates a potentially imminent danger. If not avoided, could result in minor injuries.
NOTICE!
Indicates all situation which, if not avoided, can result in property damage.
Definition: The parts from isi- 


Page 4 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
1.1. Intended Use
Any use of the product other than that described in the 
the intended use. The Blue-X-Lite is used exclusively for illumination purposes. The scope of delivery
includes the Blue-X-Lite light source and a power supply. The information in the operating
instructions, in particular the safety instructions and permitted operating ranges, must be observed,
  
intended use and is misuse of the device.
The device may only be used by qualified and instructed persons after reading
the user manual and safety instructions!
Only use original parts from isi-sys GmbH. isi-sys GmbH does not give any warranty for damages or
malfunction caused by additional parts not supplied by isi-sys GmbH. Additional cables or
             

isi-sys.
Intended use also includes:
•For efficient heat dissipation, provide adequate ventilation around the unit.
•Do not block ventilated openings or place the devices near a radiator, oven, or other heat
sources.
•Do not use accessories other than the ones provided (e.g. power cord). Only plug the power
cord into grounded power equipment and sockets.
•Do not put anything on top of the devices except those that are designed for that purpose.
•Do not focus on inflammable objects.
•Only work with the devices in a clean and dry environment! Only specially prepared devices
can work under other conditions!
•Do not place heavy objects on any cables (e.g. power cords, sensor cables, actuator cables,
optical cables).
•Plug in the power cord and connectors of cables completely so that it cannot loosen
inadvertently.
•Leave sufficient space around the power plug so that it can be unplugged easily in case of
emergency.
•Install the system so that the power-switch is always easily accessible.
Immediately unplug your unit from the wall outlet and refer servicing to qualified service personnel
under the following conditions:
oWhen the cords or plugs are damaged
oIf any liquid, fluid or water has been spilled or objects have fallen onto the devices
oIf the device has been exposed to rain or water
oIf the device does not work as described in the manual

Page 5 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
The requirements for the environmental conditions for operation must comply with the technical
specifications in section 3.1.
1.2. General safety instructions for Blue-x-Lite
CAUTION!
Danger of injury and damage to the product due to rain, splashing water, moisture
and dust.
According to the standard IEC / EN 60529 the system is protection code IP20. If water or moisture
gets into the device, internal short circuits can occur, which will destroy the device. These can lead
device.
•Protect the system from rain, splash water, moisture, and dust in every life phase of the
product!
•Use the system only indoors!
1.3. Transport and Storage
Pack the system shockproof and waterproof for transport. Also keep to the ambient temperatures
for storage and transport: -15 °C to + 60°C, 5% to 95% humidity (non-condensing).
1.4. Installation of Blue-X-Lite
•Please note the maximum operating limits of the system units from the

•Please note the required environmental conditions for the components from

•Only work with the units in a clean and dry environment! Only specially
prepared units can work under other conditions!
•Leave enough space around the power connector for easy unplugging in case of
emergency.
•Install the system with the power switch always easily accessible!
Disconnect your device from the socket immediately and refer the maintenance to a qualified
customer service Personnel under the following conditions:
•If the cables or plugs are damaged
• the unit
•If the unit has been exposed to rain or water
•If the unit does not work as described in the manual

Page 6 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
1.5. Operation of Blue-X-Lite
WARNING!
Risk of injury due to optical radiation: Risk Group 2 acc. EN 62471:2008
Looking directly into the light of the Blue-X-Lite can cause eye damage if the
duration of the eyelid closure reflex of 0.25 s is exceeded. Under real circumstances
(for exposure time, conditions of the eye pupils, observation distance), it is assumed
that no endangerment to the eye exists from these devices. As a matter of principle,
however, it should be mentioned that intense light sources have a high secondary
exposure potential due to their blinding effect. When looking at bright light sources
(e.g. headlights), temporary reduction in visual acuity and afterimages can occur,
leading to irritation, annoyance, visual impairment, and even accidents, depending
on the situation.
•Before switching on, make sure that no person is in the light beam of the
lamp and can be blinded by it!
•Do not look directly into the light of the Blue-X-Lite!
•Always turn down the intensity of the Blue-X-Lite during setup and
adjustment so that the user is not blinded!
•Always use the enclosed safety goggles while handling the Blue-X-Lite
during installation and operation!
Risk of epileptic shock
Stroboscopic light can trigger seizures in photosensitive epilepsy.
•Do not use the device in the presence of persons who are at risk of
epileptic attacks!
Risk of burns when touching the Blue-X-Lite
Depending on the ambient temperature, the housing and lens of the Blue-X-Lite
can become very hot during longer operation. Touching the Blue-X-Lite can cause
slight burns in this case.
•Always allow the Blue-X-Lite to cool down before touching it!
•Never use a Blue-X-Lite with a damaged lens.
•Under any circumstances keep the minimum safety distance(s) given in the
technical specification to avoid damages caused by light beam(s) and / or
thermal radiation and / or heat radiation to person(s), animal(s) and / or item(s)
and / or object(s).

Page 7 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
•In the case of a defect or damage of the lens (particularly while it is in operation):
switch of the power supply immediately, disconnect it from the power socket,
let it cool down completely and contact isi-sys for replacement of the lens.
•Never use a Blue-X-Lite unattended.
•Always disconnect the power supply from the power socket if it is not in use or
in operation.
•In the case of overthrowing, falling down and/or jarring heavily a Blue-X-Lite has
to be checked by isi-sys for damages
1.6. Maintenance
NOTICE!
All maintenance or repair work, in particular the opening of the device and the adjustments, are to
be done only by trained and qualified specialists of the manufacturer isi-sys GmbH, who are aware
of the dangers involved.
In case of malfunctioning or damaged system components, please contact us directly as the
manufacturer.
isi-sys GmbH
Wasserweg 8, 34131 Kassel, Germany
Phone: [phone]
Internet: http://www.isi-sys.com
Email: [e-mail]

Page 8 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2. Blue-X-Lite
The Blue-X-Lite is a light source specially developed for Digital Image Correlation (DIC). The short
wavelength and low bandwidth blue light improves the optical transmission function of lenses and
reduces chromatic aberrations and diffraction, especially in high-resolution setups with a small field
of view. The Blue-X-Lite is an entry-level, cost-effective professional flicker free lighting solution for
digital image correction. Its compact design offers a practical solution that can be easily attached
directly to the stereo bar. The passive cooled fanless design offers the advantage of no vibrations
transmitted to the stereo bar.
The Blue-X-Lite can be used in continuous operation or in pulsed operation with 20 W. Due to its
fast rise times < 100 ns in combination with special trigger unit it is also suitable for synchronization
with DIC high-speed systems for frame rate up to 10.000 fps with stroboscopic illumination. Two
versions are availed with trigger frequency up to 1000 Hz or 10.000 Hz.
Variable focusing allows a beam angle from 5° to 60° - removable and interchangeable lenses
provide for small to large FOV, same as the Blue-X-Focus. The Blue-X-Lite can be equipped with a
polarization filter with adjustable polarization direction to reduce direct reflections.

Page 9 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.1. Technical description
The Blue-X-Lite can be synchronized with DIC-Systems through a trigger device e.g. ATB-V or DAQ
and can be triggered up to 10.000 Hz (1.000 Hz) in pulse mode. Two Versions are available with
trigger limit of 1.000 Hz or 10.000 Hz. The power of the LED is adjustable via a rotary knob on the
back of the device. It is equipped with passive cooling and an integrated temperature safety
shutdown. The device can be mounted directly with a camera mount to the stereo bar and the
focusing option of the light allows to adjust the light beam from spot up to flood light characteristic.
Simply turn the lens tube to adjust the size of the light beam diameter precisely. The Blue-X-Lite is
designed for 12 VDC with power supply (110 230 VAC, 50/60 Hz) and is equipped with one 20 W
high power single cell LED and generate a flicker-free light.
2.2. Characteristics of the Blue-X-Lite
Stepless intensity control with power switch
The Blue-X-Lite can be switched ON and OFF with the 12 V power supply via the power switch
integrated in the rotary knob. The light intensity can be controlled stepless using the rotary knob.
Recommended intensity adjustments within the operation limits are 0.5- 60% light intensity for
continuous wave mode (CW). For pulse mode 0.5- 100% light intensity is possible.
Operation mode switch for continuous wave mode (CW) or pulse mode (Pulse)
Using the Operation mode switch, change the operation mode from continuous wave mode (CW)
to pulse mode (Pulse) or vice versa. Please check whether the operating limits are within the
permitted range before switching. Operating limits are specified in section 2.6.

Page 10 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
DC Input
The included 12V DC switching power supply is connected to the DC input via the power cable.
BNC Trigger Input (TTL)
For operation in pulse mode, connect a trigger source with a TTL level signal via a BNC cable. A
synchronization with the image acquisition of DIC system can be done via this trigger input. We
recommend special trigger devices from isi-sys GmbH.
Optional Polarization filter
The optional attachable polarization filter can be used to reduce direct reflections in combination
with a camera where a polarization filter is attached as well.
Focus locking screw
After setting the illumination range for homogeneous illumination via the focus of the light source,
it can be fixed with the Focus locking screw
Threads for mounting
For mounting on a tripod, beam or adapter plate, there are several options with 1/4" threads
thread or M6 on the bottom of the case. -X-Lite to a camera mount
designed by isi-sys GmbH.
2.3. Exemplary setup scheme
The Blue-X-Lite can be operated standalone in continuous wave mode when connected to the power
supply through the power supply cable. To operate the Blue-X-Lite in pulse mode, the Blue-X-Lite
must be connected to a trigger device (TTL Signal). The Power is adjustable manually or external by
pulse length and frequency. The Blue-X-Lite can be synchronized with a camera system via the
trigger unit.
For installation and operation note and obey the safety instructions in section 1!

Page 11 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.3.1. Setup with ATB-V for stroboscopic Illumination
For stroboscopic Illumination synchronised with a VIC camera system ATB-V can be used as a trigger
unit. The ATB-V is connected via USB with a Laptop or Desktop PC and is fully integrated in VIC Snap
Data acquisition software. The BNC Trigger Input of the Blue-X-Focus is connected to Output B (OUT
B) of the ATB--
trigger options as frequency, strobe pulse width and delay to camera trigger (Out A) can be set
manually. There are the options to use an internal or an external trigger signal for stroboscopic
illumination and synchronisation.
Note: The pictures of the components may differ from the delivered product!







Page 12 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.3.2. Setup with DAQ for stroboscopic Illumination
For stroboscopic Illumination synchronised with a VIC camera system a DAQ unit can be used as a
trigger unit. The DAQ is connected via USB with a Laptop or Desktop PC and is fully integrated in VIC
Snap Data acquisition software. The BNC Trigger Input of the Blue-X-Focus is connected to Trigger

- The trigger options as frequency,
strobe pulse width and delay to camera trigger can be set manually. There are the options to use an
internal or an external trigger signal for stroboscopic illumination and synchronisation.
Note: The pictures of the components may differ from the delivered product!







Page 13 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.4. Focusing mechanism and Illumination area
The Blue-X-Lite can be equipped with two different lens tubes. For larger field of view (FOV) we
recommend using the focusing tube LFOV with the small knurled ring (left image). Depending on
the flange focal distance the beam expands from 10° to 60°. For small areas the SFOV lens tube with
the bigger knurled ring (right image) is recommended in combination with the diffusor, it expands
from 7.5° to 20°. To adjust the light beam, loosen the focusing screw and turn the lens tube
clockwise or counter clockwise.
LFOV lens tube
SFOV lens tube
CAUTION!
Do not adjust the light beam while the lamps power level is high as it can lead to burns!
Illumination with Small FOV lens tube:
Standoff distance
150 mm
200 mm
400 mm
600 mm
800 mm
1000 mm
Illuminated area
(min.)
⌀7 mm
⌀9 mm
⌀22 mm
⌀35 mm
⌀48 mm
⌀61 mm
Illuminated area
(max.)
⌀95 mm
⌀115 mm
⌀180 mm
⌀260 mm
⌀340 mm
⌀420 mm
Illumination with Large FOV lens tube:
Standoff distance
150 mm
200 mm
400 mm
600 mm
800 mm
1000 mm
Illuminated area
(min.)
⌀25 mm
⌀30 mm
⌀40 mm
⌀50 mm
⌀60 mm
⌀70 mm
Illuminated area
(max.)
⌀170 mm
⌀210 mm
⌀380 mm
⌀550 mm
⌀700 mm
⌀850 mm
Illumination without lens tube:
Standoff distance
150 mm
200 mm
400 mm
600 mm
800 mm
1000 mm
Illuminated area
⌀400 mm
⌀500 mm
⌀900 mm
⌀1300 mm
⌀1700 mm
⌀2100 mm

Page 14 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
Optimal illumination setting for a specific field of view by choosing suitable lenses and standoff distance
For optimal homogeneous illumination on the area of the selected field of view, the settings in the
diagram above can be used.
2.5. Optional: Polarization Filter
The optional attachable polarization filter can be used to reduce direct reflections in combination
with a DIC system where polarization filters are attached as well. A special high temperature
polarization filter from isi-sys is recommended.
Polarization filter for Blue-X-Lite
0
500
1000
1500
2000
150 250 350 450 550 650 750 850 950
Illuminated area
⌀
/mm
Stand off Distance /mm
Illumination area with different lenses and focus
SFOV min SFOV max LFOV min LFOV max Without Lens Tube

Page 15 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.6. Operation Limits for exposure time and frequency
For continuous wave operation, the operating limits of 0.5 - 60 % light intensity are recommended
in pulse mode, a range of 0.5 100 % light intensity can be adjusted. For long-term measurements,
the following instructions should be observed for an undisturbed operation.
Maximum exposure times in pulsed mode at 100 % intensity for long-term operation–Tambient = 20°C
Application examples for combination with DIC system:
Scenario 1: Frame rate: 75 fps → max. camera exposure time: 13.33 ms
→ max. Blue-x-Lite exposure time: 6.66 ms
Scenario 2: Frame rate: 35 fps → max. camera exposure time: 28.5 ms
→ max. Blue-x-Lite exposure time: 14.29 ms
Scenario 2: Frame rate: 15 fps → max. camera exposure time: 66.66 ms
→ max. Blue-x-Lite exposure time: 33.33 ms
Exposure time (milliseconds): t(f) = {90 𝑓𝑜𝑟 0 < 𝑓 < 5
500∗ f−1 𝑓𝑜𝑟 𝑓 ≥ 5,Frequency f in Hz
MAXIMUM EXPOSURE TIMES IN PULSED MODE AT 100 %INTENSITY FOR LONG-TERM OPERATION
0.01
0.1
1
10
100
110 100 1000 10000
Exposure time [ms]
Frequency [Hz]
Maximum exposure times in pulsed mode at 100% intensity
for long-term operation - Tambient = 20°C

Page 16 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
2.7. Device safety measures
Temperature safety measures:
Device stops operating when the internal temperature reaches a threshold and stays off until a safe
operating temperature band is reached. Therefore, triggered mode is recommended for long time
measurements. The maximum case surface temperature can reach up to 60°C.
Trigger/ Timing safety measures:
When operating above the power limit with inadmissible trigger times, the lamp switches off for 4
seconds and remains in this mode until permissible trigger times have been set. This can be noticed
through a blinking of the lamp every 4 seconds if the trigger is set. For further information on setting
permissible trigger times see section 2.6.
2.8. Recommended usage
We always recommend using pulse mode when connected to a DAQ or any other external trigger.
This leads to a longer lifetime and higher power output as the continuous wave mode leads to higher
internal temperatures and a possible safety switch off.
Depending on the ambient temperature the output power is limited. Therefore, it is possible, that
operation at higher power output in continuous wave mode and pulse mode is not possible for a
long amount of time. For more information see 2.7.
The polarization filter which is equipped to the focusing adapter is a wear part. The wear is mainly
caused by operation in continuous wave mode. To reduce wear, operation in pulse mode is
recommended.
3. Technical data

Page 17 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
3.1. Technical Specifications
3.2. Optical Performance
Relative Spectral Emission: Due to the special conditions of the manufacturing processes of semiconductor devices,
the typical data or calculated correlations of technical parameters can only reflect statistical figures. These do not
necessarily correspond to the actual parameters of each single product, which could differ from the typical data and
calculated correlations or the typical characteristic line. If requested, e.g. because of technical improvements, these typ.
data will be changed without any further notice.
Version
Blue-X-Lite V1
Model
1.000 Hz
10.000 Hz
Peak wavelength
450 nm
Spectral bandwidth at 50 % Irel, max.
23 nm
Total radiant flux
7630 mW
Brightness cw mode
0.5-60 %
Brightness pulse mode
0.5-100 %
Angle of radiation
7.5-60°, 110° without lens
switch-on time
86 ns
switch-off time
95 ns
Operating voltage
110 230 V ~ 1,0A 50/60 Hz
Max. power consumption
60 W
Min. safety distance
100 mm
Connection
Cable with 2 pin plugs
Material
Aluminum
Surface
Black anodized
Protection class
IP20
Dimensions
64,5 x 64,5 x 134,3 mm
Cable length
2 m
Weight
Approx. 375 g (without cable)
Operating ambient temperature
Relative humidity (%)
Max. MASL
-15 °C to +40 °C
5 % to 95 %, non-condensing
2000 m
Storage ambient temperature
-15 °C to +60 °C

Page 18 of 18 Blue-X-Lite V1 © isi-sys GmbH 2023 Rev.:23/10/2023
4. Conformance, Malfunction and Warranty
In case of malfunctioning or damaged system components, please contact us
directly as the manufacturer. After consulting the manufacturer, please return the
damaged device with the entire accessories.
All maintenance or repair work, in particular the opening of the device and the
adjustments, are to be done only by trained and qualified specialists of the
manufacturer isi-sys GmbH, who are aware of the dangers involved.
The warranty period for isi-sys components (excluding consumable items) is 1 year after delivery.
The warranty expires in case of improper treatment or improper interventions (such as opening of
the casings, etc.).
We reserve the right to modify the hardware and software delivered in relation to the manual.
Please contact us in case of doubts and inconsistencies.
isi-sys GmbH, Wasserweg 8, 34131 Kassel, Germany
Phone: [phone]
Internet: www.isi-sys.com
Email: [e-mail]
5. EU/EC -Declaration of Conformity
The evaluation procedures for the products described in and delivered with this document were
performed in the sense of:
•Machinery DIRECTIVE 2006/42/EC
•EMC DIRECTIVE 2014/30/EU
•RoHS Directive 2011/65/EU
The manufacturer isi-sys GmbH confirms, that the products, described in this document and
delivered with this document, are in compliance with the general requirements and other relevant
regulations of the relevant EU/EC-directives.