Patents by Inventor Matthew Dubin

Matthew Dubin 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: 7413328
    Abstract: A head-up display assembly includes a liquid crystal display element, a first backlight light source, and a remote backlight light source. The first light source is physically mounted in proximity to the liquid crystal display element, and is operable to directly backlight illuminate the liquid crystal display element. The remote light source mounted physically remote from the liquid crystal display element, and is operable to backlight illuminate the liquid crystal display element via a light guide.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 19, 2008
    Assignee: Honeywell International Inc.
    Inventors: Matthew Dubin, Brent Larson
  • Patent number: 7375824
    Abstract: An interferometer is provided, comprising a source, a unit under test (UUT) with at least a first surface and second surface, a reflective optic, a detector and light from the source. The light is transmitted through the unit under test and reflects off of the reflective optic, which directs the light back to the unit under test. A first portion of light is reflected off the first surface of the UUT. A second portion of light is reflected off the second surface of the UUT. The first and second portions of light are then reflected by the reflective optic and are then transmitted through the UUT. The two portions of light are incident on the detector, where the first and second portions of light coherently add and the interference pattern is detected by the detector. A method for measuring the transmitted wavefront of the UUT is also provided.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: May 20, 2008
    Inventors: William P. Kuhn, Matthew Dubin
  • Publication number: 20080036625
    Abstract: Precision approach path indicator systems (PAPIS) effective in providing approach slope guidance for aircraft approaching an airport runway are provided. Such PAPIs include a plurality of light assemblies positioned on or in proximity to an airport runway and structured or configured to be effective in providing approach slope guidance light signals to a pilot of an aircraft approaching a runway. Each light assembly includes a light source comprising light emitting diodes (LEDs), preferably a first array of LEDs and a second array of LEDs.
    Type: Application
    Filed: October 10, 2007
    Publication date: February 14, 2008
    Applicant: New Bedford Panoramex
    Inventors: Mark Kaminski, Matthew Dubin, Michael Frate
  • Publication number: 20070115141
    Abstract: Precision approach path indicator systems (PAPIs) effective in providing approach slope guidance for aircraft approaching an airport runway are provided. Such PAPIs include a plurality of light assemblies positioned on or in proximity to an airport runway and structured or configured to be effective in providing approach slope guidance light signals to a pilot of an aircraft approaching a runway. Each light assembly includes a light source comprising light emitting diodes (LEDs), preferably a first array of LEDs and a second array of LEDs.
    Type: Application
    Filed: August 22, 2005
    Publication date: May 24, 2007
    Inventors: Mark Kaminski, Matthew Dubin, Michael Frate
  • Publication number: 20070115655
    Abstract: A new and useful lighting system is provided, that is particularly useful as a lighting system for a deck (e.g. a ship deck), where pilots taking off from or landing on the deck often use night vision goggles. In addition, a new and useful optical projection structure for a portion of the lighting system is provided. The lighting system comprises at least a pair of lighting subsystems that project light to a volume space with different spatial distributions. One subsystem projects light to the volume space with a predetermined spatial distribution, and the other lighting subsystem projects light to the volume space with a different spatial distribution, in a manner that effectively supplements the projected light from the first subsystem, so as to provide a lighting system that effectively illuminates the entire volume space. Moreover, the system is designed to be particularly compatible with the optical capabilities of night vision goggles.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 24, 2007
    Inventors: Mark Kaminski, Matthew Dubin, Mark Fink
  • Publication number: 20070091633
    Abstract: A light apparatus includes one or more light pipes and/or diffusers to transfer and/or diffuse light from a few point light sources to a broader area and to other points. A hollow light pipe includes a light transmissive sidewall that encompasses an interior space, which receives and hides control circuitry for the light sources therein. A bottom end surface of the hollow light pipe is disposed adjacent to one or more light sources and transmits the light therefrom over a relatively large, uniform area. A solid core light pipe has a light receiving end and a light dispersion end having a reflective facet therein. The reflective facet includes a depression forming a reflective surface angularly displaced from a longitudinal axis of the solid core light pipe. A light diffuser surrounding a point source of light is adapted to cause the point source to look like a flame.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 26, 2007
    Inventors: Kevin Harrity, Cory Nelson, David Carlson, Mark Johnson, Scott Demarest, Matthew Dubin, Kenneth Michaels
  • Publication number: 20070019210
    Abstract: An interferometer comprises a time-delayed source, light emitted from the time-delayed source, a unit under test where the unit under test has a first surface and a second surface, and a detector. The light emitted from the time-delayed source has a delay length. A first portion of the light is reflected off the first surface of the unit under test and a second portion of the light is reflected off of the second surface of the unit under test. A portion of the two reflected portions of light are incident on the detector where the light coherently adds, which forms an interference pattern that is detected by the detector.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 25, 2007
    Inventors: William Kuhn, Matthew Dubin
  • Publication number: 20070019207
    Abstract: An interferometer is provided, comprising a source, a unit under test (UUT) with at least a first surface and second surface, a reflective optic, a detector and light from the source. The light is transmitted through the unit under test and reflects off of the reflective optic, which directs the light back to the unit under test. A first portion of light is reflected off the first surface of the UUT. A second portion of light is reflected off the second surface of the UUT. The first and second portions of light are then reflected by the reflective optic and are then transmitted through the UUT. The two portions of light are incident on the detector, where the first and second portions of light coherently add and the interference pattern is detected by the detector. A method for measuring the transmitted wavefront of the UUT is also provided.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 25, 2007
    Inventors: William Kuhn, Matthew Dubin
  • Publication number: 20060158467
    Abstract: Methods and apparatus are provided for reducing the visual artifacts exhibited by a display employing individually addressable pixels. The apparatus comprises an array of pixels, each pixel having a switchable region of alterable transparency or luminance and a non-switchable region. The switchable region of each pixel is distributed, that is, divided into at least two simultaneously switched portions at least partly separated by a significant portion of the non-switchable region. The first order spatial harmonics and visual artifacts are significantly reduced. For a color display, each color pixel is similarly subdivided.
    Type: Application
    Filed: December 16, 2005
    Publication date: July 20, 2006
    Inventors: Brent Larson, Elias Haim, Matthew Dubin
  • Publication number: 20060158618
    Abstract: An image projection system has a first lens with a defined entrance pupil. An image source has an image field and a defined exit pupil. The exit pupil of the image source is configured such that the exit pupil of the image source underfills the entrance pupil of the lens for portions of the image source that are not in the center portion of the image field.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 20, 2006
    Inventors: Matthew Dubin, Brent Larson
  • Publication number: 20060146518
    Abstract: A head-up display assembly includes a liquid crystal display element, a first backlight light source, and a remote backlight light source. The first light source is physically mounted in proximity to the liquid crystal display element, and is operable to directly backlight illuminate the liquid crystal display element. The remote light source mounted physically remote from the liquid crystal display element, and is operable to backlight illuminate the liquid crystal display element via a light guide.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: Matthew Dubin, Brent Larson
  • Publication number: 20060139503
    Abstract: Method and apparatus are provided for displaying an image to a viewer with reduced visual artifacts. The apparatus comprises a display panel for forming the image using an array of pixels with distributed active regions, and a viewing arrangement optically situated between the display panel and the viewer for transferring the image formed on the display panel to the viewer with limited angular pixel subtense. The distributed active regions of the pixels are desirably divided into at least two simultaneously switched portions at least partly separated by or surrounding a significant portion of the non-switchable region. First order spatial harmonics and associated artifacts are reduced by the distributed apertures and second order and higher harmonics are reduced by limiting the pixel subtense angle seen by the viewer. A significant reduction in visual artifacts arising from the periodic structure of the display panel is obtained.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 29, 2006
    Inventors: Brent Larson, Elias Haim, Matthew Dubin
  • Publication number: 20060115386
    Abstract: An active material and light emitting device comprises an ultrasonic atomizer assembly and a light emission device. The active material and light emitting device further includes a housing containing the atomizer assembly and the light emission device such that the atomizer assembly is disposed above the light emission device. The light emission device emits light that is transmitted through a medial portion of the housing.
    Type: Application
    Filed: November 2, 2005
    Publication date: June 1, 2006
    Inventors: Kenneth Michaels, Thomas Helf, Matthew Dubin, Jeffrey Crull, Gregory Falendysz, Nathan Westphal
  • Publication number: 20060044512
    Abstract: Methods and apparatus are provided for generating and transmitting a substantially uniform light output. The apparatus includes a spatially modulated extended light source configured to project an output having at least one region of diminished illumination, and an array of polarizing beam splitters (PBSs) positioned proximal to the spatially modulated extended light source. The light source includes at least two light outputs configured to project unpolarized light; and at least one gap interspersed between the light outputs. The array of PBSs is configured to receive the output from the light source, convert the unpolarized light to light having a first polarized state, and remove the at least one region of diminished illumination.
    Type: Application
    Filed: August 30, 2004
    Publication date: March 2, 2006
    Inventors: Matthew Dubin, Brent Larson
  • Publication number: 20060012754
    Abstract: Methods and apparatus are provided for color correction and contrast enhancement of projection displays. A visual display system includes a projector having a light source with a fixed spectral output, a display screen receiving the output of the projector and emitting a diffused output, and a color correction contrast enhancement filter positioned between the diffusing screen and a viewer. The filter differentially attenuates primary colors of the emission from the diffusing screen. The method includes projecting a light output from a light source having a fixed spectral output onto a diffusing screen, and attenuating primary colors of the emission from the diffusing screen with a light filter positioned adjacent to the diffusing screen.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 19, 2006
    Inventors: Brent Larson, Matthew Dubin
  • Publication number: 20060007055
    Abstract: Methods and apparatus are provided for a combined image on a head-up display. A data image display provides a first part of a combined image. An optical input provides a second part of the combined image, e.g., the background scene. A combiner superimposes the first and second parts to provide the combined image to the viewer. The data image display preferentially delivers s-polarized light to the combiner, which has a selective reflectance region for preferentially reflecting s-polarized light in a wavelength region of interest. In a preferred embodiment, the data image display comprises a backlight, a liquid crystal layer and two polarizers oriented so that the data images directed toward the combiner are s-polarized with respect to the selective reflectance region. A polarization rotation element may also be used in the data image display to facilitate s-polarization orientation.
    Type: Application
    Filed: June 28, 2004
    Publication date: January 12, 2006
    Inventors: Brent Larson, Matthew Dubin, Elias Haim
  • Publication number: 20050275956
    Abstract: Methods and apparatus are provided for chromatic vignetting in lens systems. The apparatus includes a projection lens unit having an aperture stop, and a selective filter positioned at the aperture stop. The aperture stop defines a ray bundle boundary of an image passing therethrough. The selective filter includes a transmission area having an optical perimeter based on the ray bundle boundary, and a wavelength band filter partially extending from the optical perimeter into the transmission area. The projection lens unit may be used with an illumination unit having a light source and optics conditioning the light from the light source prior to illumination of a light valve. The selective filter may optionally be positioned at a conjugate plane to the aperture stop in the illumination unit.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 15, 2005
    Inventors: Brent Larson, Matthew Dubin
  • Publication number: 20050190345
    Abstract: An electronic dimming system for use in projection displays is provided. In a first embodiment, the dimming system comprises a first non-absorbing polarizer, a variable polarization rotator, a second non-absorbing polarizer and a heat absorber. The first non-absorbing polarizer receives light from a light source and passes the light of a selected polarization to the variable polarization rotator. The variable polarization rotator selectively rotates the polarization of the received light. The light passes from the variable polarization rotator to the second non-absorbing polarizer. The second non-absorbing polarizer passes only light of a second selected polarization. The light that passes the second non-absorbing polarizer is passed to the display, where it is used to illuminate the display. The system provides the ability to control the amount of light passed to the display by selectively rotating the polarization of the light with the variable polarization rotator.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 1, 2005
    Inventors: Matthew Dubin, Brent Larson, Brian Walker
  • Patent number: 6927912
    Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can varyl the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: August 9, 2005
    Assignee: Honeywell International Inc.
    Inventors: Matthew Dubin, Brent Larson
  • Publication number: 20040075903
    Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can varyl the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.
    Type: Application
    Filed: July 11, 2003
    Publication date: April 22, 2004
    Applicant: Honeywell Inc.
    Inventors: Matthew Dubin, Brent Larson