Image Engineering CAL2 User manual

Image Engineering GmbH & Co. KG ·Im Gleisdreieck 5 ·50169 Kerpen-Horrem ·Germany
T [phone] ·F [phone] ·www.image-engineering.com
CAL2
User Manual
18. December 2018

Image Engineering CAL2
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Content
1!INTRODUCTION
................................................................................................................
3!
1.1!Conformity ................................................................................................................... 3!
1.2!Intended use ................................................................................................................ 3!
1.2.1!Departing from described setup ...........................................................................
3!
1.2.2!USB connection.................................................................................................... 3!
1.3!General Safety Information.......................................................................................... 4!
2!GETTING STARTED .........................................................................................................
4!
2.1!Scope of delivery .........................................................................................................
4!
3!OPERATING INSTRUCTIONS HARDWARE.................................................................... 5!
3.1!Overview display and ports.......................................................................................... 5!
3.2!Connecting the hardware
.............................................................................................
6!
3.3!Camera positioning...................................................................................................... 7!
4!OPERATING INSTRUCTIONS SOFTWARE .................................................................... 7!
4.1!Requirements .............................................................................................................. 7!
4.2!Software installation
.....................................................................................................
7!
4.3!Starting the system...................................................................................................... 7!
4.3.1!Spectrometer settings
...........................................................................................
7!
4.3.2!Spectrometer calibration....................................................................................... 8!
4.3.3!iQ-LED calibration ................................................................................................ 8!
4.4!Low intensity use .........................................................................................................
9!
5!ADDITIONAL INFORMATION........................................................................................... 9!
5.1!Maintenance ................................................................................................................
9!
5.2!Care instructions........................................................................................................ 10!
5.3!Disposal instructions.................................................................................................. 10!
6!TECHNICAL DATA SHEET
.............................................................................................
11!

Introduction
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1INTRODUCTION
Important information: Read the manual carefully before using the device.
Inappropriate utilization may cause damages to the device, to the DUT (device under test)
and/or other components of your setup.
Keep these instructions in a safe place and pass them to any future user.
1.1 Conformity
We, Image Engineering GmbH & Co. KG, hereby declare, that the CAL2 corresponds to the
essential requirements of the following EC directive in its current version:
•Electromagnetic Compatibility - 2014/30/EU
•RoHS 2 - 2011/65/EU
•Low Voltage - 2014/35/EU
1.2 Intended use
This small light source, based on iQ-LED technology, is designed for flexible integration into a
production line. It has an externel micro spectrometer and is controlled with the iQ-LED control
software or via dip switches when not connected to a PC.
•Only suitable for indoor use.
•Place your system in a dry and constant tempered environment without any interfering
light.
•The optimal ambient temperature range is 22 to 26 degrees Celsius. The maximum
ambient temperature range is 18 to 28 degree Celsius.
•The optimal system temperature range, displayed in the software user interface, is
between 35 and 50 degrees Celsius. The system has internal temperature
management, if there is any error regarding the internal temperature, you will get a
warning message and the system will automatically shut off to avoid any damage.
1.2.1 Departing from described setup
The following steps must be performed in the correct chronology to allow a frictionless
commissioning. Departing from the chronology may lead to an incorrect working device.
1. Install the iQ-LED software
2. Connect CAL2to power and via USB to the PC
3. Switch CAL2 on;the system drivers will now be installed
4. After drivers are installed completely start the software
1.2.2 USB connection
Only appropriate USB connection allows error-free operation of CAL2. Use delivered USB
cables. If you need to extend the USB connection to longer distances, please check if powered
hubs/repeaters are necessary.

Getting started
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1.3 General Safety Information
WARNING!
Some LEDs are emitting invisible light in the IR and UV near area.
•Do not look directly into the emitted light or look through the optical LED system.
•Do not look directly in the open sphere or light source when using high intensities or
sequences with low response time.
•Do not open the device without any instructions from the Image Engineering support
team or when connected to the power supply.
2 GETTING STARTED
2.1 Scope of delivery
•CAL2
•calibration device (spectrometer)
•power cord
•USB cable
•control software
•calibration protocol
•2 plates for connecting the spectrometer
Optional equipment:
•iQ-Analyzer software (shading module)
This module includes a special chart layout file that allows analysis of images with and
without akeyhole effect.
•iQ-Trigger: The iQ-Trigger is a mechanical finger that can press the release button
within 25 ms. When working with touchscreens, exchange the solid fingertip for a touch-
pen tip.

Operating instructions hardware
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3OPERATING INSTRUCTIONS HARDWARE
3.1 Overview display and ports
•1 x USB port for software control
•1 x port for power adapter
•1 x trigger output
Use the control panel to set different light settings for the iQ-LED´s:
•with the “+” and “-“ buttons you can switch between 44 saved illuminants
•numerical display to show the storage of the illuminants
•with the play and stop button you can start and stop a saved light sequence with
different illuminants (it is possible to save one sequence on the device)
•with the power button, you can turn on and off the light
•there are three pre-stored illuminants on your device (the intensity of each illuminant is
shown in the acceptance protocol of your device):
o1: illuminant A (default illuminant)
o2: illuminant D50
o3: illuminant D75
Note: To store your own generated illuminants or sequences on your device, please follow
the instructions in the iQ-LED SW user manual.

Operating instructions hardware
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Wiring examples for the trigger output:
Trigger OUT wiring examples
The default duration value for the trigger output is 500 ms. This value can be modified with
the iQ-LED API. A signal is send out to the trigger output while changing the illuminats or the
intensity of LED channels. It can be used to synchronize your test setup. For example with
an iQ-Trigger. (See 2.1 optional equipment)
3.2 Connecting the hardware
1. Connect the power cord to the power supply on the back of CAL2.
2. Connect the USB cable to the CAL2and your PC.
3. Turn on the CAL2;the power switch is located beside the power supply.
4. Connect the spectrometer to the PC using the USB cable. The system will install the
spectrometer and iQ-LED drivers on your PC, this will take a few seconds.
5. You can check the installation in your hardware manager.
Hardware Manager: active iQ–LED and spectrometer

Operating Instructions Software
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3.3 Camera positioning
•your DUT should be as close as possible to the CAL2 diffusor
•the lens should be exactly in the middle of the diffusor
If these requirements are not fulfilled, an inhomogeneous illuminated field of view will occur. The
easiest way to align the camera correctly is to use the optional iQ-Align. (see 2.1)
4 OPERATING INSTRUCTIONS SOFTWARE
4.1 Requirements
•PC with Windows 7 (or higher) operating system
•one free USB port
4.2 Software installation
Install the iQ-LED control software before connecting the hardware. Follow the setup
instructions from the iQ-LED control software manual.
4.3 Starting the system
Start the iQ-LED software by clicking the ‘iQ-LED.exe’ or the iQ-LED icon on your desktop.
Follow the iQ-LED software manual to control the CAL2.
NOTE
The iQ-LED devices can only operate with high precision, when setup and calibration
are performed correctly.
Consult the iQ-LED software manual for a comprehensive description and read it
carefully.
4.3.1 Spectrometer settings
When the spectrometer is connected to the CAL2, it can calibrate your system, generate a new
illuminant, or change the intensity. Two different adapter plate sizes are provided with the CAL2
device to connect the spectrometer. The smaller plate enables you to see the actual light setting
next to the calibration device. The larger plate ensures a perfect measurement in the center of
the window. Attach the spectrometer to the plate using the fiber cable and then attach the plate
to the CAL2 using the two metal clamps as seen below.

Operating Instructions Software
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Connected calibration device
Please use caution when working with the spectrometer and fiber, avoid putting any extra
pressure on the device.If you have finished your light setting or calibration,you can disconnect
the calibration device and stop the measurement in the control software. The spectrometer can
also be used for external measurements of other light sources.
The iQ-LED software (see iQ-LED software manual) automatically generates the best
spectrometer settings for you lighting conditions after pressing the “auto detect” button. For
special applications, it is also possible to set the spectrometer settings manually. If you have
further questions, please contact the Image Engineering support team.
4.3.2 Spectrometer calibration
Your spectrometer comes fully NIST traceable calibrated. We recommend recalibrating the
spectrometer once a year, regardless of the operating hours. If a spectrometer calibration is
required,please contact Image Engineering.
Note: Before removing the spectrometer, measure and note the lux value of a predefined
standard illuminant.
After the spectrometer is calibrated and has been reinstalled to your system, perform a spectral
calibration (iQ-LED calibration) and check if this intensity value is still correct. If it is not correct,
you have to perform a lux calibration.
4.3.3 iQ-LED calibration
The individual LED lights of the iQ-LED inside the CAL2 depends on many different types and
wavelengths. Some LEDs will change their intensity level and peak wavelength slightly in the
first 500-600 working hours because of a burn-in effect.
The LEDs will also degrade in intensity during their lifetime. To make sure that all
measurements including the auto-generated illuminants and the standard illuminants are
correct, you have to perform a spectral calibration regularly.

Additional information
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You must also consider the degradation of the LED when saving self-defined presets. If you
save a preset with LED channels that uses its maximum intensity, the possibility exists that this
intensity cannot be reached after the burn-in time or the long-time degradation of the LED. In
this case, you will get a warning message from the iQ-LED control software.
During the first 500-600 working hours, we recommend performing a spectral calibration every
50 operating hours.
After the first 500-600 operating hours, a calibration of every 150 working hours suffices.
Other factors that indicate the need for a spectral calibration: unsatisfactory illuminant
generation, the aberration of the intensity values, or a spectral curve that does not fit with the
predefined standard illuminants of the corresponding preset.
•the spectrometer works correctly
•the spectrometer settings are correct
•all LED channels work correctly
•the dark measurement is correct
•your measurement environment is correct
•your ambient temperature is correct
How to perform the spectral calibration is described in the iQ-LED control software manual.
4.4 Low intensity use
When using your system with very low intensity, the spectral measurement values will start to
fluctuate. The lower the intensity, the higher the fluctuation. The generated light is still stable up
to a certain point. The fluctuation of the values is caused by the noise of the spectral
measurement of the internal spectrometer. The light intensity will continue to get lower when the
influence of the noise continues to get higher. When using standard illuminants with an intensity
lower than 25 lux, it will no longer be possible to get a correct value.
5 ADDITIONAL INFORMATION
5.1 Maintenance
The spectrometer requires a recalibration once a year, regardless of the operating hours. If a
spectrometer calibration is necessary, please contact Image Engineering. We will provide you
with removal instructionsfor the spectrometer. The spectrometer then has to be sent to our
office with a notation for calibration. Use appropriate packaging to prevent the spectrometer
from being damaged during shipping.
A temporary replacement spectrometer can be provided to bridge the time gap while your
spectrometer is recalibrated. Please contact us for conditions and procedure.

Additional information
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5.2 Care instructions
•Do not touch, scratch, or pollute the diffusor.
•If there is any dust on the diffusor, clean it with an air blower.
•Do not remove the fiber from the spectrometer. Otherwise, the calibration is invalid, and
the spectrometer has to be recalibrated!
•Only store and transport the CAL2in the delivered hard case.
5.3 Disposal instructions
After the service life of CAL2, it must be disposed of properly. Electrical and electromechanical
components are included in CAL2. Observe your national regulations. Make sure that CAL2
cannot be used by third parties after disposing of it.
Contact Image Engineering if assistance for disposal is required.

Technical data sheet
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6TECHNICAL DATA SHEET
See annex for the technical data sheet. It can also be downloaded from the website of Image
Engineering: www.image-engineering.com.