Patents Represented by Attorney Laurence J. Marhoefer

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  • Topology for miniature power supply with low voltage and low ripple requirements
    Patent number: 4618919
    Abstract: A power supply topology which minimizes inductance and capacitance requirements for filtering the ripple of single or multiple output switching mode power supplies. A capacitor at the input of the power supply provides continuous support for the output signal produced by the power supply.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: October 21, 1986
    Assignee: Sperry Corporation
    Inventor: Hubert C. Martin, Jr.
  • Apparatus and method for fabricating backside mosaic of photoconductive infrared detectors
    Patent number: 4570329
    Abstract: An apparatus and method for fabricating a backside contacted mosaic detector array which provides close detector packing in one or more directions by eliminating over the edge contacts typically used. The method uses indium or other coldweldable metal, both as a means for fastening the array from the backside to its circuit board and as a means for providing electrical contact with each detector.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: February 18, 1986
    Assignee: Honeywell Inc.
    Inventors: Christopher G. Paine, William J. White, Susan J. Resnick
  • Fiber optic condenser for an optical imaging system
    Patent number: 4560235
    Abstract: An optical condensing device for use in combination with an optical imaging system to provide an image with improved contrast and resolution. The device uses a shaped fiber optic bundle coupled to a source of illumination to provide a plurality of coherent point sources, each of which is incoherent to each other, to illuminate the aperture of the optical system. The relative incoherence of each point source is achieved by varying the length of fibers in the shaped bundle so that no fiber is within the coherence length of any other fiber.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: December 24, 1985
    Assignee: Honeywell Inc.
    Inventors: Donald A. Servaes, George O. Reynolds
  • Multi-element spectral filter with curved interior surfaces
    Patent number: 4554447
    Abstract: A multi-element spectral filter with curved interior surfaces which provides uniform angular response and is particularly well-suited for use in wide field of view optical detection systems.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: November 19, 1985
    Assignee: Honeywell Inc.
    Inventors: James W. Howard, David M. Reilly
  • Apparatus and method for testing evacuatable dewar vessels
    Patent number: 4541730
    Abstract: A device and process for determining the vacuum dewar heat load at cryogenic temperatures by a test made at room temperature are described. The test device comprises a heat source and integral temperature sensor mounted on a probe tip. The heat load of a test dewar at a desired test temperature (e.g. 77K) may be determined by measuring the heat load of the dewar under test at a more suitable test temperature (e.g. room temperature) and multiplying that room temperature heat load by a correlation factor. This correlation factor is empirically determined, and is dependent on the design of the test device and dewar, and the desired and actual test temperatures.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: September 17, 1985
    Assignee: Honeywell Inc.
    Inventors: David M. Comey, Ronald R. Kusner
  • Integrated control system for induced draft combustion
    Patent number: 4533315
    Abstract: An integrated, closed loop system for controlling the fuel to air ratio in an induced draft combustion chamber which has a control pilot through which a draft is induced so that the fuel to air ratio in the control pilot chamber has a predetermined ratio to the fuel to air ratio in the primary combustion chamber.
    Type: Grant
    Filed: February 15, 1984
    Date of Patent: August 6, 1985
    Assignee: Honeywell Inc.
    Inventor: Lorne W. Nelson
  • Non-delineated semiconductor detector array for infra-red
    Patent number: 4531059
    Abstract: A detector comprising an elongated strip of semiconductor material which is photoconductive by the generation of electron and hole photocarriers when an image is moved along the strip. The strip includes an active region and a readout region. A first bias current is applied through the active region of the strip thereby producing an ambipolar drift of photocarriers in the strip whose velocity substantially matches the velocity of the movement of the image along said strip. A second bias current is applied to the readout region of the strip so that the drift of the photocarriers in the readout region has a velocity which is greater than the velocity of the drift of the photocarriers in the active region of the strip, thereby decreasing the time for readout.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: July 23, 1985
    Assignee: Honeywell Inc.
    Inventors: John B. McCullough, Craig A. Mortensen
  • Focusing device for external flashing of getters
    Patent number: 4530854
    Abstract: A method of introducing getter material in which a beam of getter atoms formed outside a cavity is directed into the cavity.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: July 23, 1985
    Assignee: Honeywell Inc.
    Inventor: Hans P. Meyerhoff
  • Detector dewar assembly
    Patent number: 4528449
    Abstract: An improved detector dewar assembly comprised primarily of metal subassemblies, which is easily assembled, and leaves the included detector assembly more readily serviceable.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: July 9, 1985
    Assignee: Honeywell Inc.
    Inventors: William R. Gordon, Peter N. Nicholson
  • Apparatus for selectively viewing either of two scenes of interest
    Patent number: 4527055
    Abstract: Either of two scenes of interest may be detected by use of a scanning sensor having a rotatable polygonal scanning mirror coupled to receive incident radiation from such scenes of interest. Apparatus is included for directing such incident radiation onto a detection device. A movable shutter is coupled to block receipt by the mirror of radiation from the first scene of interest when the second scene of interest is viewed, and vice versa.
    Type: Grant
    Filed: November 15, 1982
    Date of Patent: July 2, 1985
    Assignee: Honeywell Inc.
    Inventors: Lloyd B. Harkless, William L. McCracken, Joseph A. Colosimo
  • Optical detection system having a detector lens comprising a rear landscape lens
    Patent number: 4507551
    Abstract: An improved optical system for thermal imaging systems using wide field of view optics in conjunction with large detector arrays in which a detector cold shield, system aperture stop and scanning subassembly are placed in substantially the same location such that the size of the scanning optics is minimized and cold shielding efficiency is maximized.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: March 26, 1985
    Assignee: Honeywell Inc.
    Inventors: James W. Howard, Irving R. Abel
  • Optical lithographic system having a dynamic coherent optical system
    Patent number: 4498009
    Abstract: An optical lithographic system for exposing small linewidths on integrated circuit substrates. The system comprises a deep ultraviolet (UV) source of illumination in conjunction with a dynamic coherent condenser system and an optical projection system and a deep UV sensitive photoresist.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: February 5, 1985
    Assignee: Honeywell Inc.
    Inventor: George O. Reynolds
  • High sensitivity focal sensor for electron beam and high resolution optical lithographic printers
    Patent number: 4493555
    Abstract: A three slit interferometric focus control device capable of focal positioning accuracies on the order of 300 angstroms. The device includes a zero path Michelson interferometer with reference and movable legs comprising, respectively, an annular reference mirror and the surface to be brought into position of best focus. A three slit plate positioned between the beamsplitter and energy detection device allows interference of light reflected off the movable and reference surfaces, creating an amplitude modulation signal. The energy detection device will measure a minimum energy intensity at the position of best focus.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: January 15, 1985
    Assignee: Honeywell Inc.
    Inventor: George O. Reynolds
  • Josephson junction interferometer device for detection of curl-free magnetic vector potential fields
    Patent number: 4491795
    Abstract: A device for detecting and/or measuring the presence of a magnetic vector potential "field" including two Josephson devices in a Josephson interferometer configuration, a magnetic shielding envelope with apertures arranged so that the magnetic vector potential is confined to the vicinity of one of the two Josephson devices (but not the interferometer loop region) and a means for detecting magnetic flux induced by the interaction of the Josephson device and the magnetic vector potential "field". The detection of the magnetic vector potential offers a more advantageous range of dependence than the magnetic flux density.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: January 1, 1985
    Assignee: Honeywell Inc.
    Inventor: Raymond C. Gelinas
  • Disc detector assembly
    Patent number: 4488414
    Abstract: A miniature, nonevacuated, detector refrigerator assembly for use in infrared imaging systems is described. The assembly incorporates a miniature Joule-Thomson laminar refrigerator which serves as the substrate for the detector subassembly, electrical leads, as well as the primary structural element of the assembly. The detector subassembly is positioned on the cold region of the refrigerator, surrounded by insulating material and capped by an optical window or filter as required. As a result, the detector is cooled while the contact pads used for connection to external devices are at the ambient temperature. A piece of high thermally conductive material may be placed in the vicinity of the detector subassembly so that during operation gases in the chamber surrounding the detector assembly will preferentially condense thereon rather than on the detector subassembly.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: December 18, 1984
    Assignee: Honeywell Inc.
    Inventors: David L. Jungkman, Roger C. Coda, Peter N. Nicholson
  • Line scan reader/writer by holographic collection
    Patent number: 4488042
    Abstract: An electro-optical scanner which can write and read with common optics by using a phase hologram near the focal plane of the scanned surface.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: December 11, 1984
    Assignee: Honeywell Inc.
    Inventors: Burton R. Clay, William O. Thrailkill
  • One dimensional scanning system
    Patent number: 4487473
    Abstract: A scanning system comprising input optics including an afocal telescope, output optics including an imaging lens and a linear spaced array of detectors, a scanner including a hollow inwardly reflecting polygonal prism rotated about its longitudinal axis, which is subtantially parallel to the axis of the input optics, and two folding mirrors which are contained within the outline of the prism, and with respect to which the prism rotates.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: December 11, 1984
    Assignee: Honeywell Inc.
    Inventors: Marcus R. Hatch, William J. Lepsevich
  • Switch-while-scan optical system
    Patent number: 4486662
    Abstract: An optical system produces sensor data from at least two fields of view (which may be centered differently) in a sequence selected to satisfy two simultaneous functions of the sensor.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: December 4, 1984
    Assignee: Honeywell Inc.
    Inventor: Irving R. Abel
  • Focal sensor having optical low pass filter
    Patent number: 4474446
    Abstract: A system having a scaled anti-aliasing random phase filter for use in optical imaging systems having a sampled focal plane or an automatic focussing device. The filter is scaled so that it may be placed near the focal plane or automatic focus sensing device, yet produce the effect of an anti-aliasing filter at the exit pupil of the optical system. In one example, the filter includes a scaled hologram of a Sayanagi filter located at the exit pupil. In a second example, the filter includes a scaled double chirped diffraction grating.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: October 2, 1984
    Assignee: Honeywell Inc.
    Inventors: George O. Reynolds, Burton R. Clay
  • Cryogenic cooler thermal coupler
    Patent number: 4450693
    Abstract: A thermal coupler assembly mounted to the coldfinger of a cryogenic cooler which provides improved thermal transfer between the coldfinger and the detector assembly mounted on the dewar endwell. The thermal coupler design comprises a stud and spring-loaded cap mounted on the coldfinger assembly. Thermal transfer is made primarily through the air space between the cap and coldwell walls along the radial surfaces. The cap is spring loaded to provide thermal contact between the cap and endwell end surfaces.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: May 29, 1984
    Assignee: Honeywell Inc.
    Inventors: Kenneth E. Green, John A. Talbourdet