Patents Represented by Attorney Bernard L. Sweeney
  • Patent number: 4071753
    Abstract: A transducer is disclosed in which energy received from either mechanical or acoustic sources is converted into modulated optical power. The transducer is comprised of three basic components, an input optical fiber, an output optical fiber and a means for varying the optical coupling coefficient between the two fibers in response to information containing energy received from a mechanical or acoustic source. The input optical fiber carries a steady state optical signal which may be either continuous or pulsed. The means operates to control the coupling of the steady state optical signal into the output optical fiber. An intensity modulated output signal is then carried by the output optical fiber away from the transducer. The intensity modulated output signal may be either detected and thereby converted to electrical energy for transmission or may be transmitted in an optical form if optical communications facilities are available.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: January 31, 1978
    Assignee: GTE Laboratories Incorporated
    Inventors: John E. Fulenwider, John Gonsalves
  • Patent number: 4034355
    Abstract: A holographic digital data processing system is described in which the data is stored holographically in a recording medium with the data insertable and retrievable in a sequential manner. A modulated data beam and a similarly modulated reference beam are passed through various deflectors to intersect at the recording medium to form the local holographic pattern. The location in the recording of the intersection is controlled by a page deflector which deflects both beams through the same angle and the angle of intersection is controlled by a data deflector which deflects only the data beam. Therefore, each data bit is recorded with a distinct angular relationship between the interfering data and reference beams. During reconstruction, the reference beam is occluded and the data beam is passed through both the data deflector and the page deflector to intersect the recording medium at the unique address of a single bit of digital data which is desired to be read out.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: July 5, 1977
    Assignee: GTE Laboratories Incorporated
    Inventor: W. John Carlsen
  • Patent number: 4023126
    Abstract: One embodiment of the disclosed apparatus converges a beam of light to a point of focus and scans that point of focus through an arc at a predetermined radius. The beam of light is then imaged to another point of focus by a unitary power optical system. The second point of focus, therefore, also scans through an identical arc which is displaced by a selected distance along the optical axis from the first point of focus. A master mask for exposing a photoresist on a semiconductor wafer is located at the first point of focus and the semiconductor wafer whose layer of photoresist is to be exposed is located at the second point of focus. However, the mask and wafer are mounted in a different fixture which is radially translatable relative to the scanning beam of light so that a sequence of scans of the beam of light across the mask and wafer serves to illuminate all areas of the mask and to thereby image the information on the mask onto the photoresist layer on the semiconductor wafer.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: May 10, 1977
    Assignee: GTE Laboratories Incorporated
    Inventor: John Schlafer
  • Patent number: 4004178
    Abstract: A white light source is described in which a trivalent metallic ultraphosphate is irradiated with a low voltage electron beam. The metallic ions are generally restricted to the lanthanide rare earth ions and yttrium. The material so irradiated emits light in a spectral continuum centered in the visible portion of the electro-magnetic spectrum. This emission is, however, in addition to any narrow bandwidth light emission of the type generally associated with a transition of the metallic ion involving the electrons of the 4f shell.
    Type: Grant
    Filed: October 3, 1974
    Date of Patent: January 18, 1977
    Assignee: GTE Laboratories Incorporated
    Inventors: Leslie A. Riseberg, Alexander Lempicki, Charles Brecher, Herman O. Dressel
  • Patent number: 3999841
    Abstract: A method and an apparatus for forming an optical fiber connector are described. The optical fiber connector is formed by locating a main body for the connector so that a predetermined relationship is established between an axis and at least two external surfaces of the main body. The optical fiber is then positioned in a precise position with respect to the axis; hence, it is also precisely located relative to the two external surfaces. Finally, the optical fiber is secured firmly to the main body. The optical fiber connector so formed is capable of being mated to another similarly mounted optical fiber connector by use of the two external surfaces to provide a highly efficient optical coupling junction.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: December 28, 1976
    Assignee: GTE Laboratories Incorporated
    Inventors: Mark L. Dakss, Andrew Bridger, Hubert J. Ramsey
  • Patent number: 3984679
    Abstract: An apparatus for measuring the plating thickness of a thin gold coating on a substrate such as a sheet or thin wire is described. The gold plating thickness, which may range from one to about one hundred and fifty microinches, is measured with an X-ray analysis technique in real-time as the plating of a wire is in process. The gold plated wire is exposed to X-rays of a type and intensity selected to stimulate X-ray emission from both the gold plating and the substrate with energies which permit energy-dispersive analysis. A ratio between the X-ray energies attributable to the substrate and gold plating is employed to determine the thickness of the gold plating with a generally applicable calibration curve. The accurate and rapid gold plating thickness measurement enables the monitoring the regulation of the gold plating thickness with a feedback control in a highly accurate manner.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: October 5, 1976
    Assignee: GTE Laboratories Incorporated
    Inventors: Paul Lublin, Donald Koffman
  • Patent number: 3984785
    Abstract: A optical logic device is described in which binary logic functions are accomplished by use of a laser, such as a dye laser, whose output has a polarization direction which is determinable by the direction of polarization of an input excitation laser pumping pulse. An optical component, such as a birefringent element, establishes a pair of bistable polarization directions representative of the binary logic levels. Bistable polarization operation is achieved by requiring a greater intensity of an input laser pumping signal to establish one polarization direction when compared with the input intensity required to establish the other polarization direction. A Brewster plate may be employed to establish the bistable operation of the laser medium.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: October 5, 1976
    Assignee: GTE Laboratories Incorporated
    Inventors: Leslie A. Riseberg, Alexander Lempicki, Harold Samelson
  • Patent number: 3975080
    Abstract: A portable holographic information retrieval system is described in which individual holograms each of which contains the alphanumeric information from an individual page of a book, are reconstructed on a rear-illuminated viewing screen. The individual holograms are contained on a permanent transparency as a matrix, the holograms of successive pages of a book being arranged in a sequential manner. The entire matrix of individual page holograms is contained on a transparency which is approximately equal in size to a standard 35 millimeter photographic slide. The reconstruction apparatus has the rear-illuminated viewing screen collapsibly mounted to a system housing. The housing includes a small source of a collimated beam of light for illuminating a selected "page" in the transparency.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: August 17, 1976
    Assignee: GTE Laboratories Incorporated
    Inventor: Scott L. Norman
  • Patent number: 3956848
    Abstract: A device which is useful in determining the efficacy of various insect attractants and repellants. In particular, the device is useful for determining any time relationships which occur during the use of those attractants and repellants. The device has a web of "fly paper" which is continuously moved past an aperture in an outer housing at a known rate. A fresh supply of fly paper is stored in a roll at one end of the web and is supported on a first spindle journaled in the outer housing. The used fly paper is rolled and stored in a take-up roll at the other end of the web supported on a similarly journaled second spindle. The fly paper may be removed from the device and unrolled. By knowing the rate at which the fly paper was advanced originally, a time-dependent profile of the insects captured may then be determined. Furthermore, since the insects remain intact on the fly paper, the insects can be classified readily and time-dependent profiles by species and breed can also be made.
    Type: Grant
    Filed: April 3, 1975
    Date of Patent: May 18, 1976
    Assignee: GTE Laboratories Incorporated
    Inventor: Donald D. Job
  • Patent number: 3938895
    Abstract: A method is described for positioning an optical fiber. The method takes two general forms: (1) The optical fiber is positioned carefully with respect to some predetermined external surface on a stationary holder such that the optical fiber may be later precisely located through use of that surface; and (2) Precisely orienting one or more optical fibers which have been prepositioned with respect to an article such that that article may be similarly precisely oriented. Generally, the methods involve the passing of light through the optical fiber, detecting the output therefrom through the use of a position-sensitive photodetector, and moving the optical fiber so as to achieve a desired relationship to the position-sensitive photodetector.
    Type: Grant
    Filed: August 19, 1974
    Date of Patent: February 17, 1976
    Assignee: GTE Laboratories Incorporated
    Inventors: Andrew Bridger, Mark L. Dakss
  • Patent number: 3932761
    Abstract: A fiber coupled light emitting diode module is provided which may be utilized for plug-in incorporation into a fiber optical communications system and for easy connection to a driving voltage source. Means are included in the module for facilitating manufacture since the location of the light emitting diode is not critical within the device and the device may be operated efficiently since the heat which is generated at the light emitting diode is conducted away to the exterior of the module for dissipation.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: January 13, 1976
    Assignee: GTE Laboratories, Incorporated
    Inventors: Hubert J. Ramsey, Samuel M. Stone, Joseph Zucker