Patents by Inventor Brett Bryars

Brett Bryars 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).

  • Patent number: 8736967
    Abstract: An anamorphic eyepiece. In one implementation, the eyepiece is for use with a display where both the eyepiece and display are head-mounted, with the eyepiece projecting an image from the display into the user's eye. The display has high resolution in a horizontal direction, preferably at least 2000 pixels, but the image produced by the display is compressed in aspect ratio. The anamorphic eyepiece decompresses the aspect ratio.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 27, 2014
    Assignee: SA Photonics, Inc.
    Inventors: Michael P. Browne, Brett Bryars
  • Patent number: 8550681
    Abstract: A light source assembly comprises a light pipe, a first color light source at a first tapered light collector, a second light source at a second tapered light collector, and at least a first dichroic filter operative to pass first color light and to reflect second color light toward a light output port. A light valve may be positioned to receive light from the light pipe. One or more light entrances to the light pipe may have a filter, e.g., a short wave pass filter, oriented in a plane generally parallel to the axial optical pathway.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: October 8, 2013
    Assignee: Cymtec, Ltd.
    Inventors: Rad Sommer, Peter C. Egerton, Rance M. Fortenberry, Brett Bryars, Michael A. Scobey
  • Publication number: 20110170313
    Abstract: A light source assembly comprises a light pipe, a first color light source at a first tapered light collector, a second light source at a second tapered light collector, and at least a first dichroic filter operative to pass first color light and to reflect second color light toward a light output port. A light valve may be positioned to receive light from the light pipe. One or more light entrances to the light pipe may have a filter, e.g., a short wave pass filter, oriented in a plane generally parallel to the axial optical pathway.
    Type: Application
    Filed: May 23, 2008
    Publication date: July 14, 2011
    Inventors: Rad Sommer, Peter C. Egerton, Rance M. Fortenberry, Brett Bryars, Michael A. Scobey
  • Publication number: 20080074898
    Abstract: A light source assembly comprises: a light pipe and one or more tapered light collectors operative to reduce the angular distribution of light entering the light pipe from light sources at one or more ports. Dichroic filters and angle-dependent, wavelength selective pass filters control light flow into and through the light pipe. The tapered light collector is operative to reduce the angular distribution of light entering the light pipe. At least a first dichroic filter positioned in the light pipe optically between first and second light entrances is operative to pass first color light from the first light source toward the light port, and to reflect second color light from the second light source toward the light port.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 27, 2008
    Applicant: Bookham Technology plc
    Inventors: Rad Sommer, Peter Egerton, Rance Fortenberry, Brett Bryars, Michael Scobey
  • Publication number: 20070291505
    Abstract: A light source assembly (212) for providing a homogenized light beam (224) includes a first light source (234), a second light source (236), and an optical pipe (228) that defines a pipe passageway (228A). The first light source (234) generates a first light (234A) that is directed into the pipe passageway (228A) at a first region (228I). The second light source (236) generates a second light (236A) that is directed into the pipe passageway (228A) at a second region (228H) that is different than the first region (228I). The optical pipe (228) homogenizing the first light (234A) and the second light (236A). Additionally, the light source assembly (212) can include a third light source (238) that generates a third light (238A) that is directed into the optical pipe (228) at a third region (228G) that is different than the first region (228I) and the second region (228H).
    Type: Application
    Filed: August 9, 2006
    Publication date: December 20, 2007
    Inventors: Rance Fortenberry, Peter Egerton, Rad Sommer, Mike Scobey, Brett Bryars
  • Publication number: 20060268207
    Abstract: A C-plate compensator is disclosed for compensating the residual A-plate and C-plate retardance of a reflective liquid crystal on silicon (LCoS) display or a transmissive liquid crystal (LC) display in a projection display system. The C-plate incorporates a form-birefringent coating, whose retardance magnitude can be adjusted by tilting with respect to the display panel (X-Y) plane. The tilted plate is rotated about the Z-axis by a prescribed amount from the slow axis of the display panel. Criteria are described for choosing the tilt and rotation angles such that the contrast of the display system produced by the compensated panel is optimized.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 30, 2006
    Applicant: JDS Uniphase Corporation
    Inventors: Kim Tan, Brett Bryars, Karen Hendrix, David Shemo, Thomas Mayer
  • Patent number: 5986815
    Abstract: Methods and apparatus for enhancing the performance of reflective LCD systems. The high-contrast color-splitting prism system utilizes a "double-pass" prism assembly. Polarized light enters the prism assembly, is color-split and is emitted as separate colors to reflective imagers which reflect each color in accord with a desired image. The reflected light is passed, once again, through the prism assembly where the separate colors converge and the convergent light is emitted to a projection lens for display of the image on a screen. At least one zero-incidence waveplate compensator is positioned between one reflective imager and the prism assembly. The waveplate compensator effectively decreases the unwanted polarized light entering the prism assembly for the second pass-through, thereby increases the polarization purity of the light that is emitted from the prism assembly to the projection lens to yield a high-contrast projection image.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: November 16, 1999
    Assignee: Optical Coating Laboratory, Inc.
    Inventor: Brett Bryars