US Patent Issued to Raytheon on May 6 for "Athermal infrared optical telescope and method for manufacturing" (California Inventor)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,547, issued on May 6, was assigned to Raytheon Co. (Arlington, Va.).

"Athermal infrared optical telescope and method for manufacturing" was invented by David N. Sitter Jr. (Torrance, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes an entrance pupil configured to receive light from a distant source. The device also includes an exit pupil configured to output the light to at least one component of an imaging system. The device further includes a plurality of lenses disposed optically between the entrance pupil and the exit pupil, where the lenses are grouped into an objective group and an eyepiece group. In addition, the device...