Patents by Inventor Perttu Keinänen

Perttu Keinänen 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).

  • Display apparatuses and methods incorporating pattern conversion
    Patent number: 11495194
    Abstract: A display apparatus comprising: first light source(s) per eye, scanning mirror(s) per eye, pattern converting element per eye, and processor(s) configured to control first light source(s) to emit a light beam, whilst controlling scanning mirror(s) to draw subframe(s) of first image frame over pattern converting element, wherein subframe(s), when drawn, comprises plurality of light spots arranged in first pattern, wherein pattern converting element is employed to direct light beam incident thereon towards target surface, whilst converting first pattern of plurality of light spots into second pattern, thereby producing on target surface output image having spatially-variable resolution.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 8, 2022
    Assignee: Varjo Technologies Oy
    Inventors: Ari Antti Erik Peuhkurinen, Klaus Melakari, Perttu Keinänen, Oiva Arvo Oskari Sahlsten