In 1977 Kollmorgen's Electra-Optical Division began investigating the application of air bearing technology to precision optics manufacturing. As a result, in 1979, a new venture group was formed known as the IntOp Division. The objective of the IntOp operating plan was to develop the diamond turning machines and related technology to produce superior optical surfaces so as to broaden the application of diamond turned optics from IR toward shorter wavelength applications. Diamond machined optics for use in the visual portion of the spectrum was clearly in mind. It was also during this period that IntOp was awarded a contract to become the U.S. Army Industrial Partner in the Precision Machining Commercialization program for the Department of Defense.
Kenneth Westort, Kenneth Westort,
"Diamond Machined Optics For Use At Visible Wavelengths", Proc. SPIE 0508, Production Aspects of Single Point Machined Optics, (11 December 1984); doi: 10.1117/12.944955; https://doi.org/10.1117/12.944955