ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,825, issued on Jan. 20, was assigned to Yokogawa Electric Corp. (Tokyo).
"Integrating sphere" was invented by Kazufumi Nishida (Musashino, Japan), Kumiko Horikoshi (Musashino, Japan) and Hitoshi Hara (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An integrating sphere (10) of the present disclosure includes a hollow member (1) and a diffusive coating (4), on the inner surface of the hollow member (1), configured to scatter and reflect light from a light source within the hollow member (1) to yield diffused light. The diffusive coating (4) is coated with a hydrophobic coating (5). The accuracy of optical measurements using the integ...