Patents Assigned to Alces Technology, Inc.
  • Patent number: 8249127
    Abstract: Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are matched.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: August 21, 2012
    Assignee: Alces Technology, Inc.
    Inventor: David M Bloom
  • Publication number: 20120106580
    Abstract: Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are matched.
    Type: Application
    Filed: January 10, 2012
    Publication date: May 3, 2012
    Applicant: Alces Technology, Inc.
    Inventor: David M. Bloom
  • Publication number: 20120099171
    Abstract: A pseudo bipolar method for driving a MEMS ribbon device reduces charging effects in the device.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 26, 2012
    Applicant: Alces Technology, Inc.
    Inventors: Richard Yeh, David M. Bloom
  • Patent number: 8139282
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 20, 2012
    Assignee: Alces Technology, Inc.
    Inventors: David M Bloom, Matthew A Leone
  • Patent number: 8121171
    Abstract: Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are matched.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: February 21, 2012
    Assignee: Alces Technology, Inc.
    Inventor: David M Bloom
  • Publication number: 20110175864
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Application
    Filed: March 30, 2011
    Publication date: July 21, 2011
    Applicant: Alces Technology, Inc.
    Inventors: David M. Bloom, Matthew A. Leone
  • Publication number: 20110169915
    Abstract: A structured light system based on a fast, linear array light modulator and an anamorphic optical system captures three-dimensional shape information at high rates and has strong resistance to interference from ambient light. A structured light system having a modulated light source offers improved signal to noise ratios. A wand permits single point detection of patterns in structured light systems.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Applicant: ALCES TECHNOLOGY, INC.
    Inventors: David M. Bloom, Matthew A. Leone
  • Patent number: 7940448
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 10, 2011
    Assignee: Alces Technology, Inc.
    Inventors: David M Bloom, Matthew A Leone
  • Patent number: 7940449
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: May 10, 2011
    Assignee: Alces Technology, Inc.
    Inventors: David M Bloom, Matthew A Leone
  • Publication number: 20110084343
    Abstract: Monolithic IC/MEMS processes are disclosed in which high-stress silicon nitride is used as a mechanical material while amorphous silicon serves as a sacrificial layer. Electronic circuits and micro-electromechanical devices are built on separate areas of a single wafer. The sequence of IC and MEMS process steps is designed to prevent alteration of partially completed circuits and devices by subsequent high process temperatures.
    Type: Application
    Filed: December 15, 2010
    Publication date: April 14, 2011
    Applicant: ALCES TECHNOLOGY, INC.
    Inventors: Richard Yeh, David M. Bloom
  • Patent number: 7907338
    Abstract: A microfabricated optical wave plate comprises a reflective polarizer and a mirror separated by a fixed or variable distance. The wave plate imparts a relative phase delay on polarization components of incident light, thereby transforming the overall polarization of the light.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: March 15, 2011
    Assignee: Alces Technology, Inc.
    Inventor: David M. Bloom
  • Patent number: 7875484
    Abstract: Monolithic IC/MEMS processes are disclosed in which high-stress silicon nitride is used as a mechanical material while amorphous silicon serves as a sacrificial layer. Electronic circuits and micro-electromechanical devices are built on separate areas of a single wafer. The sequence of IC and MEMS process steps is designed to prevent alteration of partially completed circuits and devices by subsequent high process temperatures.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: January 25, 2011
    Assignee: Alces Technology, Inc.
    Inventors: Richard Yeh, David M. Bloom
  • Publication number: 20100315694
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Application
    Filed: January 14, 2010
    Publication date: December 16, 2010
    Applicant: ALCES TECHNOLOGY, INC.
    Inventors: David M. Bloom, Matthew A. Leone
  • Publication number: 20100315565
    Abstract: A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 16, 2010
    Applicant: Alces Technology, Inc.
    Inventors: David M. Bloom, Matthew A. Leone
  • Publication number: 20100040094
    Abstract: Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are matched.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 18, 2010
    Applicant: ALCES TECHNOLOGY, INC.
    Inventor: David M. Bloom
  • Patent number: 7623558
    Abstract: Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are matched.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 24, 2009
    Assignee: Alces Technology, Inc.
    Inventor: David M. Bloom
  • Patent number: 7549759
    Abstract: A system and method for increasing contrast in displays using micromechanical light modulators. Contrast is enhanced by an optical system that uses polarization to discriminate unmodulated light. Contrast obtained from polarization sensitive components of an optical system has a multiplicative effect on contrast already available.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: June 23, 2009
    Assignee: Alces Technology, Inc.
    Inventor: David M. Bloom
  • Publication number: 20090140433
    Abstract: A chip-to-chip interconnect system suited for MEMS that do not require low-resistance connections is described. The interconnects may be fabricated simultaneously with MEMS ribbon structures such as are found in MEMS optical modulators.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Applicant: ALCES TECHNOLOGY, INC.
    Inventors: David M. Bloom, Matthew A. Leone, Richard Yeh
  • Patent number: 7532651
    Abstract: A phase plate and lens modify light beams emitted by an array of lasers to form an efficient illumination source for a MEMS light modulator array. The phase of the electric field emitted by the lasers is modified such that the after passing through a lens the beam profile at the lens focal plane has an approximately rectangular shape appropriate for illuminating a light modulator array. The phase plate may be constructed from a glass plate with rectangular notches etched in it or with rectangular ridges formed on it. Furthermore a light source, such as a laser, may be coupled to an adiabatically tapered optical waveguide in which a phase adjusting block is introduced in analogy to notches in a bulk phase plate. Phase modified light beams output from the waveguide system have similar focusing properties to those passing through a bulk phase plate.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: May 12, 2009
    Assignee: Alces Technology, Inc.
    Inventor: David M. Bloom
  • Patent number: 7286277
    Abstract: Polarization light modulators are based on an interferometric design in which a polarizing beam splitter serves as a polarizer and analyzer. A polarization displacement device shifts orthogonally polarized light beams parallel to the long axis of their elongated cross sections. Phase shifts are imparted to the orthogonally polarized beams by linear array MEMS optical phase shift devices. The output of the light modulator is a line image which may be scanned to form a two-dimensional image. Features to improve brightness, contrast and overall compactness of design are disclosed.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: October 23, 2007
    Assignee: ALCES Technology, Inc.
    Inventors: David M. Bloom, Mark C. Peterman