The Vega light source presents a solution for high precision measurements of exceedingly short exposure times often seen in automotive-grade cameras. Vega uses LEDs that are driven by DC (direct current) technology making it one of our most sophisticated and unique light sources ever developed.
Cameras with very short exposure times often experience stability problems due to inadequate testing devices. Vega has extremely high stability that provides a previously unattainable consistency for measuring these types of cameras.
While we do use DC technology for this device, we are able to eliminate color shifting through the meticulous selection of the LEDs. The DC driver does not affect temperature regulation and we can achieve temperature stability within half a degree. The temperature system works both ways (i.e., heating and cooling) and it will remain consistent even when turning on/off different light sources or changing the intensities.
Vega also has advanced flicker capabilities and can be generated from a wider frequency range. We have also further developed the low-frequency functionality to include sine, triangular, and square waveforms, which allows us to cover nearly all real-world scenarios.
Why Vega?
Unlike PWM controlled light sources, where intensity is regulated by the high-frequency of switching the LEDs on/off, Vega regulates the intensity by the amount of current and offers a very fine adjustment of its intensity. These features allow the Vega to measure high intensities with extremely short exposure times. HDR cameras from the automotive sector benefit greatly from this technology as they require the highest level of performance to ensure safety.
When to use Vega?
Vega will best be utilized when measuring Contrast Transfer Accuracy (CTA), Modulated Light Mitigation Probability (MMP), OECF, or other high-intensity measurements. All of these factors are relevant to the automotive sector, but also apply to other sectors that have high demands on accuracy. Vega is also a much more compact and flexible solution compared to the previous DTS solution.
Vega software and APIs
Vega is sold with included control software that will allow you to control up to seven Vega devices at one time. APIs also available (sold separately) for smooth integration into individual designs. We offer a C, C++ and Python API.
Vega charts (TE294)
The TE294 chart is optimized to work with Vega. It is a unique grayscale test chart for high precision measurements, including Contrast Transfer Accuracy (CTA) and other contrast-based performance indicators. We offer a few chart variations apart from the standard grayscale chart. Please contact our sales team for more details. Charts are available individually or in sets. As with the Vega light source, you can purchase charts as a one-piece set, three pieces, or seven pieces.
Please note, that the TE294 charts are always sold separately from the Vega light source.
Vega hardware
The Vega is available in two separate hardware sets. Each set comes with a controller and control software. The controller can connect and control up to seven different Vega light sources. All of which can be programmed with the control software.
The Vega 1+1* is sold with one Vega light source and is perfect for those looking for a simple solution for testing HDR cameras with very short exposure times.
The Vega 3 + 1 Set* is sold with three Vega light sources and is a great for a solution to test camera performance against varying flicker frequencies or contrast transfer accuracy (CTA) measurements.
In addition to the two sets listed above, we also offer individual Vega light sources as an “add-on” option for your project (an “add-on” does not come with a controller or control software).
If you have questions or inquiries, please contact our sales department for a consultation.
*Evaluation software not included.
