US Patent Issued to HAMAMATSU PHOTONICS on Feb. 17 for "Multi-ring mask, light irradiation device, optical microscope, and photoacoustic microscope" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,119, issued on Feb. 17, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu, Japan).

"Multi-ring mask, light irradiation device, optical microscope, and photoacoustic microscope" was invented by Naoya Matsumoto (Hamamatsu, Japan) and Koyo Watanabe (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light irradiation apparatus focuses light on a surface or an inside of an object to observe or process the object, and includes a laser light source, a lens, a lens, a mask, a wave plate, and a lens. The mask is a multi-ring mask for spatially intensity-modulating input light in a beam cross-section and outputting modulated light, and inclu...