Computer Management Systems Take Over

EE April 1988 COMPONENT NEWS New Fresnel lenses Quantelec has introduced a range of Fresnel lenses for use in intruder detec- tion and security applications. Designed for use with Quantelec"s ranges of dual- element pyroelectric IR detectors, there are four different types of lens. tor Industry Association (SIA), which topped $3 billion in September last year, up from $2.5 billion for the same month in 1986. SEMI European Secretariat • CCL House • 59 Fleet Street • LONDON EC4Y 1JU • Telephone 01-353 8807. Cells and batteries An 8-page full-colour brochure out- lining the widest selection of cells and batteries offered by any electronics distributor in the UK has been produced by STC Electronic Services. Products are available from such leading manufac- turers as Varta, Duracell, UCAR, Saft, Sonnenschein, Ever/Ready, and Vidor. The brochure is available free of charge from The Battery Group • STC Electronic Services • Edinburgh Way • HARLOW CM20 2DF • Telephone (027...