Patents by Inventor David Amm

David Amm 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: 7057795
    Abstract: An optical MEM devices which utilizes individually addressable ribbon pairs configured to modulate light is disclosed. The ribbon pairs preferably comprise silicon nitride with a reflective aluminum layers, wherein at least one ribbon from each ribbon pair is in electrical communication with a driver circuit for controllably addressing the ribbon pairs individually. The ribbons are preferably configured to modulate light having wavelengths in a range of 0.4 to 2.0 microns suitable for display and optical communication technologies. The system preferably comprises optical fibers for transmitting light to individually addressable ribbon pairs and for transmitting reflected light from individually addressable ribbon pairs.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 6, 2006
    Assignee: Silicon Light Machines Corporation
    Inventors: Jim Hunter, David Amm, Christopher Gudeman
  • Patent number: 7042611
    Abstract: A modulator for and a method of modulating an incident beam of light including means for supporting a plurality of active elements and a plurality of bias elements, each active and bias element including a light reflective planar surface with the light reflective planar surfaces of the plurality of active elements lying in a first parallel plane and the plurality of bias elements lying in a second parallel plane wherein the plurality of active and bias elements are parallel to each other and further wherein the plurality of bias elements are mechanically or electrically deflected with respect to the plurality of active elements. Each of the plurality of bias elements is deflected an odd multiple of the wavelength of an incident light wave divided by four and the plurality of light reflective planar surfaces of the plurality of active elements move between the first parallel plane to the second parallel plane.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: May 9, 2006
    Assignee: Silicon Light Machines Corporation
    Inventors: Christopher Gudeman, Omar Leung, James Hunter, David Amm
  • Publication number: 20050212004
    Abstract: A light modulator and a method of manufacturing the same are provided having a substrate with reflectivity enhancing layers formed thereon. The layers include at least a top surface for receiving incident light, a first layer overlying the substrate, and a second layer between the top surface and the first layer, the second layer overlying and abutting the first layer. The second layer has a predetermined thickness selected in relation to an index of refraction of the second layer and to a wavelength of the incident light such that the light reflecting off an interface between the first and second layers constructively interferes with light reflected from the top surface. Preferably, the first layer also has a predetermined thickness selected such that the light reflecting off an interface between the first layer and the substrate constructively interferes with light reflected from the top surface.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 29, 2005
    Inventors: Alexander Payne, James Hunter, David Amm
  • Publication number: 20050200985
    Abstract: A MEM device in accordance with the invention comprises one or more movable micro-structures which are preferably ribbon structures or cantilever structures. The ribbon structures or cantilever structures are preferably coupled to a substrate structure through one or more support regions comprising a plurality of anchor support features and a plurality of post support features. The MEM device is preferably an optical MEM device with a plurality of movable ribbon structures each being supported by opposing ends through support regions each comprising a plurality of anchor support features and a plurality of post support features. In accordance with the method of the embodiments, the positions of the anchor and post support features, the number of anchor and support features and the spacings between the support features can selected during fabrication of the device to determine an operating condition of the MEM device.
    Type: Application
    Filed: February 9, 2005
    Publication date: September 15, 2005
    Inventors: Christopher Gudeman, James Hunter, Richard Yeh, David Amm
  • Publication number: 20050068411
    Abstract: One embodiment disclosed relates to a method of providing drive signals to an illuminator module having a plurality of channels in a printing application. Binary image data comprising image bits is provided from a data source to the illuminator module. Each image bit is converted to a multi-bit amplitude value within the illuminator module, wherein the conversion of each image bit to the multi-bit amplitude value depends at least on a value of the image bit and which channel is associated with the image bit. Pulse width modulation (PWM) may be applied to the drive signals using programmable transition delays. Apparatus for performing the aforementioned method are also disclosed.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 31, 2005
    Inventors: David Amm, Douglas Webb, Gregory Myatt
  • Publication number: 20040036950
    Abstract: An optical MEM devices which utilizes individually addressable ribbon pairs configured to modulate light is disclosed. The ribbon pairs preferably comprise silicon nitride with a reflective aluminum layers, wherein at least one ribbon from each ribbon pair is in electrical communication with a driver circuit for controllably addressing the ribbon pairs individually. The ribbons are preferably configured to modulate light having wavelengths in a range of 0.4 to 2.0 microns suitable for display and optical communication technologies. The system preferably comprises optical fibers for transmitting light to individually addressable ribbon pairs and for transmitting reflected light from individually addressable ribbon pairs.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 26, 2004
    Applicant: Silicon Light Machines
    Inventors: Jim Hunter, David Amm, Christopher Gudeman