ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,020, issued on Feb. 3, was assigned to D4D Technologies LLC (Richardson, Texas).
"Holographic digitizer illuminator with mutually variant wavelengths" was invented by Juuso Jalmari Heikkinen (Vancouver, Canada) and MyeongSoo Kim (Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for generating multiple mutually variant wavelengths of coherent radiation for three-dimensional imaging of a physical object, such as a tooth, are disclosed. A single radiation source, such as a laser diode, emits coherent electromagnetic radiation. A highly dispersive optical element, such as an echelle diffraction grating, separates radia...