Image Engineering Vega Illumination Device User Manual

Vega
User Manual
February, 1st 2022

INTRODUCTION

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 Vega corresponds to the essential requirements of the following EC directive:

• Electromagnetic Compatibility – 2014/30/EU
• Photobiological safety of lamps and lamp systems – IEC 62471:2009

1.2 Intended Use
Vega is a high-intensity illuminator for transparent charts based on LED technology. It is capable of flicker-generation with variable frequency and variable duty cycle. The device can be controlled with the Vega Software and the optional Vega C++ API.

• 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 degrees Celsius.
• The system has an internal temperature management system. If there is an error regarding the internal temperature, the status LED will indicate an error, and the system
  automatically turns off to avoid any damage.

1.3 General Safety Information
Do not open the device without instructions from the Image Engineering support team and when connected to the power supply.
1.3.1 Photosensitive Epilepsy
A small number of users with pre-existing conditions may experience seizures while using the flicker mode of Vega. Certain frequency and intensity combinations may trigger seizures with no prior medical history. Reframe from using the device and consult a doctor immediately if you experience sickness while using Vega.
1.3.2 Eye Safety
The LEDs used in this product can be classified as belonging to the exempt group or risk group 1 according to IEC 62471:2009.

GETTING STARTED

2.1 Scope of Delivery
The scope of delivery depends on the selected kit. The following kits are available.
Vega Starter Kit:

• 1 x Vega controller

• 1 x Vega illumination unit

• 1 x CAN cable (screw-in connector to plug-in connector)

• 1 x Low voltage power cable (screw-in connector to plug-in connector)

• 1 x Power supply cable (according to destination)

• 1 x 2 m USB cable (A to B)

• 2 x spare Fuses (6.3A)

• 1 x Flight case

• Control software

• User manual

• Acceptance protocol
  Vega 3 Kit:

• 1 x Vega controller

• 3 x Vega illumination unit

• 1 x CAN cable (screw-in connector to plug-in connector)

• 2 x CAN cable (plug-in connector to plug-in connector)

• 3 x Low voltage power cable (screw-in connector to plug-in connector)

• 1 x Power supply cable (according to destination)

• 1 x 2 m USB cable (A to B)

• 2 x spare Fuses (6.3A)

• 1 x Flight case

• Control software

• User manual

• Acceptance protocol
  Vega 7 Kit:

• 1 x Vega controller

• 7 x Vega illumination unit

• 1 x CAN cable (screw-in connector to plug-in connector)

• 6 x CAN cable (plug-in connector to plug-in connector)

• 7 x Low voltage power cable (screw-in connector to plug-in connector)

• 1 x Power supply cable (according to destination)

• 1 x 2 m USB cable (A to B)

• 2 x spare Fuses (6.3A)

• 2 x Flight case

• Control software

• User manual

• Acceptance protocol

Vega add-on:

• 1 x Vega illumination unit
• 1 x CAN cable (plug-in connector to plug-in connector)
• 1 x Low voltage power cable (screw-in connector to plug-in connector)
• User manual
• Acceptance protocol

Optional:

• Vega C++ API.

2.2 Commissioning
Keep all ventilation slits of the Vega illumination unit free of foreign objects. The minimum clearance is 10 cm.

OPERATING INSTRUCTIONS HARDWARE

3.1 Overview

1. Output window (diffuser)
2. Fan guard
3. 12 V power input
4. CAN ID selector (DIP switch)
5. CAN IN/OUT (interchangeable)
6. Status LEDs
7. Test button

3.2 Connecting the Hardware
Before you connect the Hardware, check, if the CAN IDs are set properly. The CAN ID can be set with the DIP switch on the back of the Vega modules. The DIP switches are set according to binary calculation meaning that every DIP switch can feedback only the values 0 and 1. The calculation is comparably simple: Every DIP switch has the value 2n where n is the number of the DIP switch. The first DIP switch is 0 (Switch 1 in the Figure 2b – computers start counting from 0, not from 1), so in our case, when the first DIP switch is switched on it has a CAN ID value of 20 = 1.
It is required that the CAN ID is unique. The last module in the CAN chain needs TR (switch 8) switched to “on”.
Example for seven modules:
CAN ID 1 = 10000000
CAN ID 2 = 01000000
CAN ID 3 = 11000000
…
CAN ID 7 = 11100001

VEGA CONTROL SOFTWARE

The Vega control software is a convenient tool for controlling multiple Vega modules from Image Engineering.
4.1 Installation
The Vega control software is available in 32bit and 64bit. Please make sure to install a suitable version. Start the installer ‘setup_vega_winXX_1.0.0.exe’ and follow the instructions.
4.2 Connection
Turn on the Vega controller, connect it to the PC via USB and start the software. If no Vega device is found, the following panel is displayed.

If the software cannot detect the devices, you can try to add them manually. Choose the option “Find connected devices” from the “File” menu or press “Ctrl

• F” to scan USB ports and update the display that shows the devices. If a device is found, it shows up in the devices list.

4.3 Operation

The Vega controller and the modules are displayed in the devices list ① with the corresponding serial numbers and CAN IDs. Select a device to make it controllable in the control panels at the bottom. The Vega modules can work in flicker or continuous mode. If you want to work in continuous mode, set the “Flicker” slider to 0.0Hz. If not, set them to your desired flicker frequency by adjusting the slider or entering the value directly. If you are working in flicker mode with multiple modules, you can synchronize them. In this case, the master module is CAN_1. Synchronize the frequency of the modules to CAN ID 1 by checking the box next to the module. This synchronization also overwrites the previously set Flicker, Duty Cycle, Angle, Period Count, and Flicker Mode with the settings of the CAN_1 module. All Vega modules are set to synchronize by
default.

4.3.1 Module Controls
The following controls can be set individually for each module.

• ON/Off state: Each module can set the On/Off state, Flicker Mode, Intensity Interval, Phaseshift, Intensity, Flicker, and Duty Cycle. To switch a module on or off, select it and click on the light bulb ③.
• Flicker Mode: The Flicker Mode can be changed in the Flicker Mode Panel ④. You can choose between square, sine, and triangle waveshape.
• Phaseshift: To change the Phaseshift of the module, you can enter the Angle and Period Count ⑥. The Period Count is the number of periods the module goes through before it adds the Phaseshift with the angle defined. Note that the Phaseshift will be turned off if the intensity is changed.
• Intensity Interval: The Intensity Interval under ⑤ sets the range of the Intensity slider in percent. The intensity is divided into decades to match the human perception better.
• Flicker Controls: Change the intensity, the flicker frequency, or the duty cycle value with the sliders or enter the desired values into the edit field ⑦. When an edit field is selected, you can use the “up” and “down” arrows on the keyboard to change the value. If “Flicker” is set to 0.0Hz, the module lights continuously, and the “Duty Cycle” slider is inactive.

If the selected module is calibrated and in continuous mode, the current luminance/illuminance values are shown in the source panel ⑧. It also shows the temperature of the modules.
The preview panel ⑨ provides a graphical representation of the current Intensity, Flicker, and Phaseshift settings. The width of the preview represents one second.
All connected Vega modules are stored for the current session and will be restored the next time the software is executed.

4.3.2 Presets
Add presets of all connected modules by clicking the „Add Preset“ button. The added presets show up in the “Presets” list ②. Clicking on the presets will immediately switch to it. Rename or delete presets via the context menu. Alternatively, press “F2” to rename or press the “del” button to delete a preset.

A right-click into the free space of ② provides the following options.

4.3.3 Calibration
The Vega has a stabilized intensity output. The system needs to be calibrated to use the output feedback in cd/m² or lux. The Vega provides two calibration modes.

• Luminance calibration: Luminance is a measurement of the emission or reflection from a flat surface in cd/m². For Vega, the chart surface is measured. The diffuser plate, however, is measured when doing a shading measurement. Therefore, it measures the emission in the direction towards the device under test (e.g., a camera system). Choose a reference point on the chart for the calibration. When using an OECF chart, we recommend the field with the lowest density.
• Illuminance calibration: Illuminance is a measurement in lux of how much light illuminants a surface. In other words, it is a measure of the illumination in the direction of the light source and is not suitable for a measurement on the chart.

Be sure to perform the calibration in a fully darkened room. Any foreign light pollution will result in measurement errors, and an external measurement device is needed to calibrate the Vega. We recommend using a Class L Luminancemeter/Illuminancemeter.

Open the context menu of the module you want to calibrate to start the calibration process.

The internal Sensors of the Vega perform a reference measurement. This measurement can take up to a minute.

Take your reference measurement on a suitable region with your external measurement device and select OK. In the following dialog, you can set the measured luminance or illuminance value.

Cancel the calibration to retain the old calibration. Press OK to accept your calibration.
Note that luminance or illuminance only show if “Flicker” is set to 0.0Hz continuous mode.

ADDITIONAL INFORMATION

5.1 Maintenance

• Do not touch, scratch, or pollute the diffusor.

If there is any dust on the diffuser, clean it with compressed air or an air blower.
5.2 Storage and Transport

• Store and transport the Vega only in the delivered hard case.

5.3 Disposal Instructions
The Vega must be disposed of properly after the service life is over. Vega includes electrical and electromechanical components. Observe your national regulations. Make sure that third parties cannot use Vega after disposing of it.
Contact Image Engineering if assistance for disposal is required.

TECHNICAL DATASHEET

See the website of Image Engineering: www.image-engineering.com.

Image Engineering GmbH & Co. KG · Im Gleisdreieck 5 · 50169 Kerpen-Horrem · Germany
T +49 2273 99991-0
· F +49 2273 99991-10
· www.image-engineering.com

References

• Image Engineering - Solutions to test image Quality
• Image Engineering - Solutions to test image Quality

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