Patents by Inventor Tomohira Sasagawa

Tomohira Sasagawa 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).

  • PROJECTION OPTICAL SYSTEM AND IMAGE DISPLAY APPARATUS
    Publication number: 20100238416
    Abstract: A projection optical system for enlarging and projecting a light flux from an image display panel modulating an irradiation light, onto a screen in an oblique direction, the projection optical system includes: a lens system including a plurality of lenses, the lens system refracting the light flux from the image display panel; a single convex mirror reflecting the light flux from the lens system, the lens system and the convex mirror being arranged in an order from the image display panel; and a stop disposed in an optical path after an emission from the lens system to an incidence on the convex mirror.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 23, 2010
    Inventors: Muneharu KUWATA, Tomohira Sasagawa