Search

Charles F Mcconaghy

from Livermore, CA
Age ~75

Charles Mcconaghy Phones & Addresses

  • 212 Garnet Dr, Livermore, CA 94550 (925) 292-4819 (925) 449-1885
  • Red Bluff, CA
  • Alameda, CA
  • 212 Garnet Dr, Livermore, CA 94550 (530) 864-0408

Work

Position: Clerical/White Collar

Education

Degree: High school graduate or higher

Emails

Resumes

Resumes

Charles Mcconaghy Photo 1

Charles Mcconaghy

View page

Publications

Us Patents

Ultraminiature Broadband Light Source And Method Of Manufacturing Same

View page
US Patent:
7755292, Jul 13, 2010
Filed:
Jan 22, 2007
Appl. No.:
11/625545
Inventors:
Margaret L. Tuma - Strongsville OH, US
Joseph S. Collura - Auburn OH, US
Henry Helvajian - Pasadena CA, US
Michael D. Pocha - Livermore CA, US
Glenn A. Meyer - Danville CA, US
Charles F. McConaghy - Livermore CA, US
Barry L. Olsen - Oakdale CA, US
William W Hansen - Lakewood CA, US
Assignee:
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:
H01J 17/04
H01J 61/04
US Classification:
313631, 313238, 313573, 313634
Abstract:
An ultraminiature light source using a double-spiral shaped tungsten filament includes end contact portions which are separated to allow for radial and length-wise unwinding of the spiral. The double-spiral filament is spaced relatively far apart at the end portions thereof so that contact between portions of the filament upon expansion is avoided. The light source is made by fabricating a double-spiral ultraminiature tungsten filament from tungsten foil and housing the filament in a ceramic package having a reflective bottom and a well wherein the filament is suspended. A vacuum furnace brazing process attaches the filament to contacts of the ceramic package. Finally, a cover with a transparent window is attached onto the top of the ceramic package by solder reflow in a second vacuum furnace process to form a complete hermetically sealed package.

Ultraminiature Broadband Light Source With Spiral Shaped Filament

View page
US Patent:
8264134, Sep 11, 2012
Filed:
Jun 7, 2010
Appl. No.:
12/795356
Inventors:
Margaret L. Tuma - Strongsville OH, US
Joseph S. Collura - Lakewood OH, US
Henry Helvajian - Pasadena CA, US
Michael D. Pocha - Livermore CA, US
Glenn A. Meyer - Danville CA, US
Charles F. McConaghy - Livermore CA, US
Barry L. Olsen - Oakdale CA, US
William W Hansen - Lakewood CA, US
Assignee:
The United States of America as Represented by the Administrator of National Aeronautics and Space Administration - Washington DC
International Classification:
H01J 17/04
H01J 61/04
US Classification:
313344, 313326, 313331, 313333, 313341, 313272
Abstract:
An ultraminiature light source using a double-spiral shaped tungsten filament includes end contact portions which are separated to allow for radial and length-wise unwinding of the spiral. The double-spiral filament is spaced relatively far apart at the end portions thereof so that contact between portions of the filament upon expansion is avoided. The light source is made by fabricating a double-spiral ultraminiature tungsten filament from tungsten foil and housing the filament in a ceramic package having a reflective bottom and a well wherein the filament is suspended. A vacuum furnace brazing process attaches the filament to contacts of the ceramic package. Finally, a cover with a transparent window is attached onto the top of the ceramic package by solder reflow in a second vacuum furnace process to form a complete hermetically sealed package.

Fiberoptic Fabry-Perot Optical Processor

View page
US Patent:
20050259270, Nov 24, 2005
Filed:
May 20, 2005
Appl. No.:
11/134548
Inventors:
Michael Pocha - Livermore CA, US
Charles McConaghy - Livermore CA, US
Billy Wood - Livermore CA, US
Glenn Meyer - Livermore CA, US
International Classification:
G01N021/25
US Classification:
356519000
Abstract:
An optical signal processor having a monolithic prism supporting one or more channels, and constructed from a first glass block joined to a second glass block at a beam splitter interface. The monolithic prism has thin film beam splitters and filters (such as I and Q filters) either deposited directly on the prism or attached to it. The beam splitter interface, and the thin film beam splitters and filters are arranged relative to each other so that a portion of the return-ranging collimated encoded beam from an external optical sensor is reflected to all the filters. And detectors are connected over the filters to detect particular components of the collimated encoded beam which are passed through the respective filters.

Micromachined Low Frequency Rocking Accelerometer With Capacitive Pickoff

View page
US Patent:
62305662, May 15, 2001
Filed:
Oct 1, 1999
Appl. No.:
9/410458
Inventors:
Abraham P. Lee - Arlington VA
Jonathon N. Simon - San Leandro CA
Charles F. McConaghy - Livermore CA
Assignee:
The Regents of the University of California - Oakland CA
International Classification:
G01P 15125
US Classification:
7351432
Abstract:
A micro electro mechanical sensor that uses capacitive readout electronics. The sensor involves a micromachined low frequency rocking accelerometer with capacitive pickoff fabricated by deep reactive ion etching. The accelerometer includes a central silicon proof mass, is suspended by a thin polysilicon tether, and has a moving electrode (capacitor plate or interdigitated fingers) located at each end the proof mass. During movement (acceleration), the tethered mass moves relative to the surrounding packaging, for example, and this defection is measured capacitively by a plate capacitor or interdigitated finger capacitor, having the cooperating fixed electrode (capacitor plate or interdigitated fingers) positioned on the packaging, for example. The micromachined rocking accelerometer has a low frequency (

Micro Benchtop Optics By Bulk Silicon Micromachining

View page
US Patent:
60714263, Jun 6, 2000
Filed:
Dec 8, 1997
Appl. No.:
8/986477
Inventors:
Abraham P. Lee - Walnut Creek CA
Michael D. Pocha - Livermore CA
Charles F. McConaghy - Livermore CA
Robert J. Deri - Pleasanton CA
Assignee:
The Regents of the University of California - Oakland CA
International Classification:
G02B 6136
B29D 1100
US Classification:
216 24
Abstract:
Micromachining of bulk silicon utilizing the parallel etching characteristics of bulk silicon and integrating the parallel etch planes of silicon with silicon wafer bonding and impurity doping, enables the fabrication of on-chip optics with in situ aligned etched grooves for optical fibers, micro-lenses, photodiodes, and laser diodes. Other optical components that can be microfabricated and integrated include semi-transparent beam splitters, micro-optical scanners, pinholes, optical gratings, micro-optical filters, etc. Micromachining of bulk silicon utilizing the parallel etching characteristics thereof can be utilized to develop miniaturization of bio-instrumentation such as wavelength monitoring by fluorescence spectrometers, and other miniaturized optical systems such as Fabry-Perot interferometry for filtering of wavelengths, tunable cavity lasers, micro-holography modules, and wavelength splitters for optical communication systems.

Micromachined Electrostatic Vertical Actuator

View page
US Patent:
59698489, Oct 19, 1999
Filed:
Jul 3, 1997
Appl. No.:
8/888000
Inventors:
Abraham P. Lee - Walnut Creek CA
Gary E. Sommargren - Santa Cruz CA
Charles F. McConaghy - Livermore CA
Peter A. Krulevitch - Pleasanton CA
Assignee:
The Regents of the University of California - Oakland CA
International Classification:
G02B 2608
US Classification:
359298
Abstract:
A micromachined vertical actuator utilizing a levitational force, such as in electrostatic comb drives, provides vertical actuation that is relatively linear in actuation for control, and can be readily combined with parallel plate capacitive position sensing for position control. The micromachined electrostatic vertical actuator provides accurate movement in the sub-micron to micron ranges which is desirable in the phase modulation instrument, such as optical phase shifting. For example, compact, inexpensive, and position controllable micromirrors utilizing an electrostatic vertical actuator can replace the large, expensive, and difficult-to-maintain piezoelectric actuators. A thirty pound piezoelectric actuator with corner cube reflectors, as utilized in a phase shifting diffraction interferometer can be replaced with a micromirror and a lens. For any very precise and small amplitudes of motion` micromachined electrostatic actuation may be used because it is the most compact in size, with low power consumption and has more straightforward sensing and control options.
Charles F Mcconaghy from Livermore, CA, age ~75 Get Report