Patents by Inventor Ilkyu Han

Ilkyu Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250123474
    Abstract: A variable coherence illumination device is disclosed. The variable coherence illumination device includes a light source generator configured to emit a beam and configured to control a wavelength of the beam, a focusing lens configured to focus the beam, a first diffuser on which a beam passing through the focusing lens is incident, a second diffuser facing the first diffuser and rotatable around a rotation axis of the second diffuser, in which a focusing region on which the beam passing through the first diffuser is focused by the focusing lens is formed on the second diffuser, in which the focusing region of the second diffuser is spaced apart from the rotation axis of the second diffuser.
    Type: Application
    Filed: August 23, 2024
    Publication date: April 17, 2025
    Inventors: Dong Uk Kim, Ki Soo Chang, I Jong Kim, Chan Bae Jeong, Dongmok Kim, Ilkyu Han