Patents by Inventor Dana F. Segler

Dana F. Segler 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).

  • LED package having improved light coupling efficiency for an optical system and method of manufacture thereof
    Patent number: 8272744
    Abstract: One aspect of an LED package, which is covered by this disclosure, includes at least two LED emitters located on a substrate wherein each of the at least two LED emitters forms an emitting area. The emitting area is substantially equal to a reflective area of the LED package, and the LED package has an optical axis that is substantially non-parallel to an optical axis of each of the at least two LED emitters.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 25, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Dana F. Segler, Steven M. Penn
  • Projection illumination device and method for projection visual display system using multiple controlled light emitters having individual wavelengths
    Patent number: 7972001
    Abstract: A method for compensating for a shift in color in a light source and a system of color illumination for a projection visual display (PVD) system.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: July 5, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Steven M. Penn, Harold E. Bellis, II, Gregory J. Hewlett, Dana F. Segler, Jr., Gregory S. Pettitt
  • LED PACKAGE HAVING IMPROVED LIGHT COUPLING EFFICIENCY FOR AN OPTICAL SYSTEM AND METHOD OF MANUFACTURE THEREOF
    Publication number: 20100053560
    Abstract: One aspect of an LED package, which is covered by this disclosure, includes at least two LED emitters located on a substrate wherein each of the at least two LED emitters forms an emitting area. The emitting area is substantially equal to a reflective area of the LED package, and the LED package has an optical axis that is substantially non-parallel to an optical axis of each of the at least two LED emitters.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicant: Texas Instruments Incorporated
    Inventors: Dana F. Segler, Steven M. Penn
  • PROJECTION ILLUMINATION DEVICE AND METHOD FOR PROJECTION VISUAL DISPLAY SYSTEM USING MULTIPLE CONTROLLED LIGHT EMITTERS HAVING INDIVIDUAL WAVELENGTHS
    Publication number: 20080158514
    Abstract: A method for compensating for a shift in color in a light source and a system of color illumination for a projection visual display (PVD) system.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 3, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Steven M. Penn, Harold E. Bellis, Gregory J. Hewlett, Dana F. Segler, Gregory S. Pettitt
  • System and method for light source modulation
    Patent number: 7360902
    Abstract: In one embodiment, a method for modulating light in an image display system includes generating a plurality of light beams. The amount of light beams that are received by a modulator is selectively varied, and the modulated light beams are received at the modulator.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: April 22, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Steven M. Penn, Dana F. Segler, Jr.
  • Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications
    Patent number: 7161608
    Abstract: Disclosed herein are visual display systems and methods capable of having shifted bit-weights in neutral density filtering (NDF) applications. In one embodiment, a method (200) of displaying an image comprises transmitting light through an optical filter (17) comprising at least one high transmissivity portion configured to output light at an initial intensity, and at least one low transmissivity portion configured to output light at a lower intensity than the initial intensity, where the initial intensity and lower intensity output light illuminates a spatial light modulator (14). The method also includes providing a plurality of data bits (non-ND) from a predetermined number of data bits (B0–B7), where each of the plurality comprises a pulse-width longer than a load-time for operating the spatial light modulator (14).
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: January 9, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Gregory S. Pettitt, Harold E. Bellis, II, Jason R. Thompson, James F. Headley, Dana F. Segler, Jr.
  • Neutral density color filters
    Patent number: 6879451
    Abstract: The present application describes embodiments of a neutral density color wheel filter. According to one embodiment, a neutral density color wheel (100) includes an opaque coating (135) over one or more color segments (120, 130, 140, 150, 160, 170) with randomly placed transmissive regions (131). The transmissive regions (131) can be configured to substantially transmit incident light and the opaque coating (135) can be configured to substantially block or absorb the incident light. Alternatively, the transmissive regions (131) can be configured to substantially transmit the incident light. The color segments with opaque coating (135) and transmissive regions (131) substantially eliminate light recycling due to the reflection from the color wheel. The light transmission from the color wheel (100) is independent of the optics of a display system.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: April 12, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Gregory J. Hewlett, Steven M. Penn, Greg S. Pettitt, Dana F. Segler, Jr.