SPONSORED: SPECTROSCOPY
Opening up spectral measurement for multiple applications
B
ack in the early 2000s, engineers Ruud Bouten, Peter Franssen and
Marcel Janssen were working at Phillips, focusing on the development and fabrication of mobile displays. It was here that they spotted a gap in the market for fast and accurate colour and light measurement systems that would best suit production lines for consumer electronics products, having found that the available equipment at the time could be challenging to operate in an industry environment – not to mention cost-inefficient. The three founded Admesy in 2006, using the expertise built up at Phillips to develop the kind of specialist test equipment they felt would be best suited to this market. The past 16 years has seen the company grow to become a global operation, with headquarters in Ittervoort, the Netherlands, and offices as far afield as Korea, China and Japan. They have also seen Admesy develop working relationships with some of the leading consumer electronics manufacturers. In 2012 Steven Goetstouwers joined as CEO. In terms of technological
developments during this time, the company initially developed a suite of high-speed, high-precision colorimeters specifically for the niche requirements of display and lighting applications. As an example of such niche
requirements, consumer device displays from the same brand must look exactly the same to the end customer, with no differences in appearance or colour. Colour point accuracy is therefore essential. When it comes to the testing of these consumer devices this must also be very fast, because devices can be produced in the tens of millions. Admesy later expanded into spectroradiometers, light meters and 2D imaging devices.
www.electrooptics.com | @electrooptics
Expanding expertise The company’s latest innovation is the Neo, a versatile platform that stems from the firm’s almost two decades of work in measurement devices for consumer electronics, but which can create spectral measurement solutions for a much wider array of applications. These include analytical, transmission or absorbance testing, fluorescence and Raman spectroscopy, solid-state lighting such as LED testing, or other demanding applications such as thin film coating. Neo is based on the
trusted Rhea series of spectroradiometers, already
high dynamic range, and can virtually cover any wavelength range in the 250-1100 nm range. There are two standard versions available: broadband and visible. The broadband has a dispersion range of 850 nm while the visible has a dispersion of 480 nm. Custom wavelength configurations are also possible. The series is available with a number of accessories, including lenses, cosine correctors, cuvette systems and spheres. These can either be directly coupled or via a fibre. A unique robust coupler assures repeatable precise connection and correct measurement results are guaranteed by the matching calibrations for a specific setup stored in the device itself. Goetstouwers continues:
Steven Goetstouwers, CEO at Admesy
a high-end measurement device with very high optical performance in terms of linearity signal-to-noise ratio, wavelength accuracy, and absolute accuracy. CEO, Steven Goetstouwers, explains: “With the Neo, we wanted to make it more accessible so that more or less everybody has access to high end spectral measurements. A professor can use it in a university, or someone in a lab working on research and development can use it. And, of course, it can be used in production.” Neo uses a high-end cooled CCD detector for low noise and
“Our aim was to make a really versatile unit that can be used for measurement in many different kinds of applications. Its wavelength accuracy is even further improved and the luminance accuracy is very high, which, in combination, is very important for measuring colour, which is directly derived from the existing market. It can be used for measurements in different kinds of applications, some of which are already happening commercially, with potential for many others in the near future.” Neo is even suitable for high-
volume production and reliable even in harsh environments. It features simple hardware and software integration and can be customised according to requirements. Just some applications include analytical testing, such as general, Raman or fluorescence spectroscopy – which require high accuracy, good linearity, low noise and repeatability as
well as luminance accuracy in a measuring device. It can be used to test solid-state lighting products or for testing LEDs for niche applications such as heart-rate monitoring, and even for spectral measurements in OEM solutions.
Application example An example of the latter that is already in commercial use is in the development of ion beam sputtering (IBS) deposition systems, following a partnership with Cutting Edge Coatings (CEC). CEC’s Navigator IBS deposition system is designed to achieve high-quality coating processes spanning optical wavelengths from deep ultraviolet and visible to infrared. The system can produce coatings for very high-performance laser components and various optical filters, using a spectral thin film thickness control system that relies on spectral transmission measurements to monitor and control the process in real time. Ensuring deposition of
the correct thickness of each layer is essential in terms of the accuracy of the final filter. CEC uses atomic layers, which can be time consuming and labour intensive, so the company needed a high- accuracy broadband optical monitoring system to help meet this challenge. The company partnered with Admesy and adopted the Neo platform, which was ideally placed to help the filters meet tighter tolerances thanks to the well thought-out optical and mechanical construction. EO
Further information
www.admesy.com/products/neo
November 2022 Electro Optics 23
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58
