September 2009
DIAS Infrared GmbH produces high sensitive infrared detectors for many years. While detectors with one to four spectral channels in TO can housing has been dominating recently, now applications for linear arrays with more than 128 pixels are upcoming. Typical pitch of such sensors is 100 µm and 50 µm respectively. For spectrometry application DIAS Infrared GmbH has developed the types 128LTx SP0.5, 128LTx SP1.0 and 256LTI SP0.5 which have longer sensitive elements.
Common narrow and wide band-pass filters can be used as well as linear variable filters. To be able to cover a wider spectral range when linear variable filters are used, now sensor arrays with two side by side placed lines are available. Each of the two channels can be equipped with a separate filter. Both channels have separate output pins. These dual line sensors are available as types 2x128LTx SP0.5 and 2x256LTI SP0.5.
Photos: Pyroelectric linear arrays 128LTx and 256LTx (JPG), Pyroelectric linear arrays 128LTx and 256LTx (TIFF)