Pyreos is the worlds only thin film pyroelectric detector supplier
Pyreos is a leader in pyroelectric detectors based on silicon (a mechanically and electrically versatile material). Due to explosive growth in the optics and semiconductor industries and the advance of microelectronic and mechanical system (MEMS) technologies, the class of thin-film pyroelectric detectors have evolved to enable new products in areas as diverse as wearable sensors, hand-held spectrometers, medical gas sensors and industrial flame sensors.
Pyreos’ stronghold in this class of thin-film pyroelectric sensors is well protected by over 25 patent families (100+ patents and counting) and in over 8 territories across the globe. With its custom MEMS pyroelectric sensors, Pyreos continues to innovate and influence in the infrared detection market – just as MEMS sensors have done in other markets.
The idea of using pyroelectric materials for infrared (IR) sensing was first proposed in 1938 by Yeou Ta at the Sorbonne in Paris, while investigating tourmaline crystals. From those early days, pyroelectric materials have grown into a well-established class of thermal detectors, for both the spectroscopic and non-spectroscopic detection of infrared light across diverse fields of application.
 Y.Ta, C. R. Acad. Sci. (Paris), 1938, 207, 1042.
Pyreos pyroelectric detectors work in the Mid-infrared and can measure molecular concentrations in gases, liquids and some solids more accurately than UV/Vis infrared measurement systems
Pyreos detectors are used to measure the absorption or emission of mid-infrared light very accurately in industrial conditions. This uses a technique called Mid infrared spectroscopy or Non-Dispersive Infra Red (NDIR). Mid infrared spectroscopy or NDIR typically identifies quantised vibration modes of intramolecular bonds (as opposed to intermolecular forces). It’s more discriminating than UV-Vis spectroscopy because it identifies not just what’s present but the types of chemical bonds present. This is beneficial to uses by increasing accuracy and reducing effects of pollutants, imprities etc. UV-VIS merely identifies elements / atoms by looking at promotion of electrons between different energy levels by absorbance of light.
Pyreos pyroelectric detectors are also used for motion detection
Pyreos thin film pyroelectric detectors accurately measure minute changes in radiation in industrial and domestic environments. This can be used to detect motion, for example to switch on a display, an alarm, or a system.
Pyreos technology delivers customer benefits because it uses thin film processes
Pyreos’ thin-film PZT pyroelectric sensor technology underpins a range of passive and active infrared sensors which can be used to analyse radiation across the entire infrared spectrum, and in particular in the mid-infrared spectrum. This is a range of spectrum which provides the best analytical data (“the fingerprint range”) and which many other sensors are unable to access substances and measure flames, presence and motion. The technology has a unique combination of benefits: