Patents by Inventor Dan Adema

Dan Adema 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: 20230296822
    Abstract: A system includes a feedback loop that includes a light engine to generate light, a light engine controller to control operation of the light engine, a scanning device to scan a light beam across a range of scan angles to an incoupler of a waveguide, a photo-sensor to measure an amount of light outcoupled through the incoupler of the waveguide at the range of incident angles. The light engine controller adjusts one or more of a pulse duration, a phase, or a pulse frequency of the scanned light, based on an incident angle of the scanned light and the measured amount of light.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 21, 2023
    Inventors: Shreyas Potnis, Timothy Paul Bodiya, Dan Adema
  • Patent number: 11196941
    Abstract: A fixture for aligning tiled displays is provided. The fixture includes a frame. The fixture further includes a vision system supported by the frame, the vision system configured to image at predefined display corner positions defined by given display dimensions. The fixture further includes an attachment mechanism configured to attach the frame to an array of tiled displays each having the given display dimensions, such that the vision system images positions of the array corresponding to respective corners of a tiled display in the array, and adjacent display corner positions.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: December 7, 2021
    Assignee: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Dan Adema, Graham Hill, Bryan Hemphill
  • Publication number: 20180359426
    Abstract: A fixture for aligning tiled displays is provided. The fixture includes a frame. The fixture further includes a vision system supported by the frame, the vision system configured to image at predefined display corner positions defined by given display dimensions. The fixture further includes an attachment mechanism configured to attach the frame to an array of tiled displays each having the given display dimensions, such that the vision system images positions of the array corresponding to respective corners of a tiled display in the array, and adjacent display corner positions.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Inventors: Dan ADEMA, Graham HILL, Bryan HEMPHILL
  • Patent number: 8681483
    Abstract: A coincident fastener for use with a display unit of a configurable imaging system, comprising a screw for insertion through the display unit, wherein the screw includes a head portion, a threaded male portion at an end of the screw opposite the head portion, and an anti-rotation locking mechanism for locking the screw relative to the display unit.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: March 25, 2014
    Assignee: Christie Digital Systems USA, Inc.
    Inventors: Dan Adema, Bryan Hemphill, Les Hirst
  • Patent number: 8611072
    Abstract: For use in an imaging system having a plurality of adjacent display units, the improvement comprising a thermal actuator in at least one of the display units for moving a screen thereof away from a chassis thereof when the said display unit exceeds a predetermined temperature, so as to prevent mechanical interference between the adjacent display units.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: December 17, 2013
    Assignee: Christie Digital Systems USA, Inc.
    Inventors: Dan Adema, Bryan Hemphill, Les Hirst
  • Patent number: 8240857
    Abstract: An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 14, 2012
    Assignee: Christie Digital Systems USA, Inc.
    Inventors: Bryan Hemphill, Les Hirst, Dan Adema
  • Publication number: 20110304523
    Abstract: A coincident fastener for use with a display unit of a configurable imaging system, comprising a screw for insertion through the display unit, wherein the screw includes a head portion, a threaded male portion at an end of the screw opposite the head portion, and an anti-rotation locking mechanism for locking the screw relative to the display unit.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 15, 2011
    Applicant: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Dan Adema, Bryan Hemphill, Les Hirst
  • Publication number: 20110279352
    Abstract: For use in an imaging system having a plurality of adjacent display units, the improvement comprising a thermal actuator in at least one of the display units for moving a screen thereof away from a chassis thereof when the said display unit exceeds a predetermined temperature, so as to prevent mechanical interference between the adjacent display units.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 17, 2011
    Applicant: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Dan Adema, Bryan Hemphill, Les Hirst
  • Publication number: 20110149491
    Abstract: An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicant: Christie Digital Systems USA, Inc.
    Inventors: Bryan HEMPHILL, Les Hirst, Dan Adema
  • Patent number: 7918565
    Abstract: An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: April 5, 2011
    Assignee: Christie Digital Systems USA, Inc.
    Inventors: Bryan Hemphill, Les Hirst, Dan Adema
  • Publication number: 20100026973
    Abstract: An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Applicant: Christie Digital Systems USA, Inc.
    Inventors: Bryan Hemphill, Les Hirst, Dan Adema
  • Patent number: D652037
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: January 10, 2012
    Assignee: Christie Digital Systems USA, Inc.
    Inventors: Dan Adema, Bryan Hemphill, Les Hirst