Fresnel Technologies Inc. purchased the lens division of Lectric Lites Company in December 1986, and moved into new quarters at 101 W. Morningside Drive in Fort Worth in July 1987. The facilities include all required plant and equipment to support manufacturing of the industry’s broadest line of Fresnel lenses, including lenses made from exotic infrared and ultraviolet-transmitting materials. In mid-1998, some of their Research and Development activities moved into a historically designated building that they completely renovated. The building also houses state-of-the-art tooling facilities and also a clean room, primarily for their medically-oriented projects. U. S. Patent RE 35,534 covers their LODIFF lens, a Fresnel lens made with a constant groove depth, and with grooves which individually as well as collectively follow an aspheric contour. Many design patents, copyrights, and trademarks protect their products also. The LODIFF lenses are widely used in passive infrared motion detectors, in addition to many other applications. They have several licensees worldwide. They are constantly diligent in their efforts to discourage and prohibit copying of their intellectual property. Their unrelenting attention to quality and technological advances have resulted in users of counterfeit lens arrays abandoning those products and seeking to become their customers.