Patents Assigned to Alces Technology
  • Patent number: 8970676
    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: Grant
    Filed: March 26, 2014
    Date of Patent: March 3, 2015
    Assignee: Alces Technology
    Inventors: David M Bloom, Matthew A Leone
  • Patent number: 8723923
    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: Grant
    Filed: January 14, 2010
    Date of Patent: May 13, 2014
    Assignee: Alces Technology
    Inventors: David M Bloom, Matthew A Leone
  • Patent number: 7446925
    Abstract: Micro-electromechanical light modulators are combined with anamorphic and contrast enhancing optical elements to form optical display engines. Linear MEMS arrays are suitable for the étendue of low divergence light sources while handling high optical power for brightness. The output of an optical engine is a line image which may be scanned to form a two-dimensional image.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: November 4, 2008
    Assignee: Alces Technology
    Inventor: David M. Bloom
  • Patent number: 7382449
    Abstract: Multi-point confocal microscopy, bright field microscope imaging, computer-controlled positioning stages, and an algorithm for automated leveling are the basis for a powerful but simple tool for aligning stamps used in precise pattern transfer to substrates. The system is relatively inexpensive and brings a capability similar to that of a photolithographic mask aligner to the world of elastomeric-stamp-based lithography. Alignment of the stamp and substrate is possible without contact between the two before printing.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: June 3, 2008
    Assignee: Alces Technology
    Inventors: Mark C. Peterman, David M. Bloom
  • Patent number: 7277216
    Abstract: A differential interferometric light modulator and image display system comprises a polarizing beam splitter, a polarization displacement device and a linear array of MEMS optical phase shifting devices to modulate a line image. The polarizing beam splitter acts as both the polarizer and the analyzer in an interferometer. The polarization displacement device divides polarized light from a polarizer into orthogonal polarization components which propagate parallel to one another. The MEMS optical phase shifting device array imparts a relative phase shift onto the polarization components and returns them to the polarization displacement device where they are recombined and sent to the analyzer. The MEMS optical phase shifting devices are electronically controlled and convert electronic image data into actual light modulation.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: October 2, 2007
    Assignee: Alces Technology
    Inventor: David M. Bloom