- +31 6 51 52 41 67 (Erik) or +31 6 53 92 16 15 (Roel)
- info@coltechcon.com
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In the world of effect colors for e.g. cars, OEM products, and cosmetics visual judgments often issue discussion between observers. VMAS enables precise visual assessments enabling better and more reproducible results.
With the VMAS you can judge metallic and pearl color-sets with your own eyes and verify with others; all can observe according to exact the same settings!
In the animated GIF you get an impression of the images you see through the tubes. Of course limited by the quality of camera and screen.
In traditional light booths, color changes of effect colors like metallic and pearls are hard to judge and observe because observer and panel orientation are not fixed. VMAS takes care of these issues.
Comparing color sets like “Reference vs Sample” can be done without moving the panels in a way other observers can judge under perfectly equal illumination and angular conditions.
The BYK-mac and the MAT12 are the most important spectrophotometers to measure effect colors. After measuring calculations are performed that give color differences under all geometries. Interpretation of all the data is difficult. VMAS provides a visual comparison between panels (like a reference and a batch) that is similar to spectrophotometers.
The figures these instruments produce do not lie, but how to decide in moments of doubt? When differences of certain angles are (not) ok-ish? Or if you want a colleague to ask for an opinion?
Variations in position of the light source, the panel and the observer can have a big influence on visual color differences. VMAS fixes Light source, panel and observer position. This results in clear defined visual observations.
You can easily change the observer position, and the position of the light source.
In this way you can mimic the light-observer conditions of all BYK and X-Rite multi angle devices and even add more light-observer combinations.
VMAS enables clear communication between observers world wide. Especially for quality control purposes this is very important.
Accepting a color difference (or not) can lead to vivid discussions. Tight tolerances are expensive and large tolerances risky. VMAS offers the solution to agree between collaegues and with customers by offering visual acceptance criteria based on real samples.
VMAS is made of durable, sustainable and high performance materials. The VMAS is a low cost, affordable, light compact table top device.
Switching the light source between all tubes results in 33 independent visual geometries. However in most cases the 45 and 15 degree angles are used on the BYK-mac and MAT12.
VMAS also comes with rechargeable batteries + chargerMoving and carying VMAS to another place has been made easy by the three-finger holes on both sides of the device.
If customers need to be convinced, VMAS can be easily transported. You can either use the carton box in which VMAS will arrive or – in case of regular travels – there is a dedicated robust travel case available on request.
The provided light source has three easily switchable intensity levels for light and dark colors. The intensity is high enough to observe even the darkest colors.
The light source has an Color Rendering Index (RA) higher than 90. This means that the VMAS enables trustworthy visual assessments with respect to daylight. For more information please refer to: https://budgetlightforum.com/node/45162
For your company and stakeholders it is important to make sure all observers speak the same language i.e. use the same words and concepts for visual assessments. CTC provides a description method to attune and calibrate visual observers and their assessments.
CTC has decades of experience in the visual assessment of gonio apparent colors like metallics and pearlescents. We can train your co-workers to apply the VMAS in daily QC and matching activities.
Many people struggle with the complex combinations of light source and observer angles. VMAS offers an easy real life explanation and training device to understand how positions relate to the outcomes of your Multi Angle spectrophotometer.
Additionally you can show people with your own training sets how spectro results look in the real world. And also on what looks “ok” and what not.
De VMAS was developed with sustainability in mind:
The light source of the VMAS:
It is of crucial importance that visual assessments of observers are consistent with one another. After a method is agreed upon the observers need to get familair and attuned (calibrated) relative to each other.
We realize each company has different measures and procedures to set tolerances on color differences.
In this Video we explain all ins and outs of the VMAS Light Booth. We take you through all aspects of visual assessments, the specifications, USP’s etc. So, sit back and enjoy.
Roel and Erik are passionate color trainers with a long career in the Automotive, Industrial and Decorative color technology market. During a series of Automotive color trainings we tried to explain the relation between measured and visual observations of pairs of colored sample panels. Measured observations are obtained using gonio spectrophotometers and complex calculations. To our surprise we could could read the confusion on the students faces. Questions came up like: “how to position sample, panels and eyes to agree with the instruments angles?”. Therefor we built a simple “simulator” out of carton and that triggered a detectable eureka moment for the students: “now I understand”.
This success stimulated us to develop VMAS. And, as our initial carton box was simple, low-cost and made out of waiste material, we decided to remain on this path.
For both of us this device is a kind of “rounding the circle of our career”. Roel started, 15 years before Erik, in a time that color matching was a craftmanship combining eyes and experience. First spectrophotometers were bulky, expensive, experimental laboratory machines. Both spend the years since then to change and convince their colleagues to start using the ever smaller, cheaper and more computerized spectro’s. Roel played an important role in the development of multi angle equipment of Gretag-Macbeth (now XRite) and BYK-Gardner.
Though the spectro’s were a huge improvement to all color processes, Roel and Erik kept adament in their opinion to always stay alert to train eyes and brains in order understanding the results.
Over the last decade a new generation of color experts entered the industry. All savvy on computers using spectrophotometers as a tool like a carpenter his hammer. They seem to accept the numbers coming from the new spectrophotomters and the software calculations. However the relation between visual observations and (gonio-)spectrophotometers seems to get lost. The VMAS is our solution for this problem.