ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,845, issued on Feb. 3, was assigned to Teradyne Inc. (North Reading, Mass.).
"System for testing light sources" was invented by Richard Pye (Burlington, Mass.), Xianfeng Lin (Bedford, Mass.) and Timothy Jackson Smith (Melrose, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An example system includes a first color bandpass filter to receive part of light from a light source and a second color bandpass filter to receive part of the light from the light source. The first color bandpass filter and the second color bandpass filter each has a cutoff wavelength at a band edge. The first color bandpass filter and the second color bandpass filter each h...