Patents by Inventor Zile Liu

Zile Liu 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: 20150301336
    Abstract: The augmented-reality optical device (1) includes: a display (2) for emitting at least one image in the form of a beam; an optical surface (4) arranged essentially transversely to the main optical axis such that it deflects the image towards the eye; a semi-reflective plate (3) for deflecting the image between the display and the optical surface; and a polarizer (6) for eliminating the parasite light.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 22, 2015
    Inventors: Maxime DENEFLE, Zile LIU
  • Patent number: 8976084
    Abstract: A portable optical device (104) for transmitting an image to the eye (6) of an observer, includes: a display (1) disposed on the same side of the observer's head (7) as the eye, so as to emit the image in front of the observer's head; an ocular dioptric surface (3); and redirection elements (4, 5, 8, 9) for guiding the image towards the dioptric surface. The device is disposed such that the image strikes the dioptric surface (3) originating from the side of the nose in relation to the eye (6) and the dioptric surface (3) then reflects the image towards the eye (6). Such a device is particularly suitable for the production of glasses that can be used to display a virtual or augmented reality.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: March 10, 2015
    Assignee: Laster
    Inventors: Rachid Hamdani, Zile Liu
  • Publication number: 20140313556
    Abstract: An optical unit (1) for augmented vision and augmented reality, which is to be placed in front of an eye of a user of the unit, includes a transparent or semitransparent screen (3), preferably a P-LED or TO-LED screen, and a unit (4) for collimating an image emitted by the screen toward the eye of the user, the collimating unit being a DOE, preferably an HOE, and the convergence function of the collimating unit being effective at a wavelength (FS) emitted by the screen.
    Type: Application
    Filed: November 6, 2012
    Publication date: October 23, 2014
    Applicant: LASTER
    Inventor: Zile Liu
  • Publication number: 20120026071
    Abstract: A portable optical device (104) for transmitting an image to the eye (6) of an observer, includes: a display (1) disposed on the same side of the observer's head (7) as the eye, so as to emit the image in front of the observer's head; an ocular dioptric surface (3); and redirection elements (4, 5, 8, 9) for guiding the image towards the dioptric surface. The device is disposed such that the image strikes the dioptric surface (3) originating from the side of the nose in relation to the eye (6) and the dioptric surface (3) then reflects the image towards the eye (6). Such a device is particularly suitable for the production of glasses that can be used to display a virtual or augmented reality.
    Type: Application
    Filed: January 29, 2010
    Publication date: February 2, 2012
    Applicant: LASTER
    Inventors: Rachid Hamdani, Zile Liu
  • Patent number: 7637617
    Abstract: A method for generating retinal images using the stigmatism of the two foci (F, F?) of a substantially elliptical sight (E) with a semi-reflective surface, wherein a so-called object focus consisting of the diaphragm of a pinhole disc forming the convergence point of an image generated by a light-emitting display or a collimated light source is positioned adjacent to the first focus (F) of the substantially elliptical sight (E), a so-called image focus consisting of the pupil or the centre of the user's eye (OE) is positioned adjacent to the second focus (F?) of said substantially elliptical sight (E), and the image generated by said light-emitting display or said collimated light source and reflected by the semi-reflective surface of the substantially elliptical sight (E) is projected adjacent to the retina of the user's eye.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: December 29, 2009
    Assignee: Laster
    Inventors: Zile Liu, Rachid Hamdani
  • Publication number: 20070285793
    Abstract: A method for generating retinal images using the stigmatism of the two foci (F, F?) of a substantially elliptical sight (E) with a semi-reflective surface, wherein a so-called object focus consisting of the diaphragm of a pinhole disc forming the convergence point of an image generated by a light-emitting display or a collimated light source is positioned adjacent to the first focus (F) of the substantially elliptical sight (E), a so-called image focus consisting of the pupil or the centre of the user's eye (OE) is positioned adjacent to the second focus (F?) of said substantially elliptical sight (E), and the image generated by said light-emitting display or said collimated light source and reflected by the semi-reflective surface of the substantially elliptical sight (E) is projected adjacent to the retina of the user's eye.
    Type: Application
    Filed: February 9, 2005
    Publication date: December 13, 2007
    Inventors: Zile Liu, Rachid Hamdani