Resumes
Resumes
Malcolm Northcott Phones & Addresses
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Santa Cruz, CA
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San Diego, CA
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6955 Rose Acres Ln, Felton, CA 95018 (831) 335-1662
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2922 Kahaloa Dr, Honolulu, HI 96822 (808) 988-9938
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3029 Lowrey Ave, Honolulu, HI 96822 (808) 988-9938
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Kailua, HI
Business Records
Name / Title
Company / Classification
Phones & Addresses
Assistant
The University of Hawaii System
Information Technology and Services · Architecture Building · University · Colleges and Universities, Nsk · College/University · Ret Books College/University · School/Educational Services · University/College
Information Technology and Services · Architecture Building · University · Colleges and Universities, Nsk · College/University · Ret Books College/University · School/Educational Services · University/College
2444 Dole St, Honolulu, HI 96822
2410 Campus Rd, Honolulu, HI 96822
2555 Dole St, Honolulu, HI 96822
2538 Mccarthy Mall, Honolulu, HI 96822
(808) 956-8177, (808) 973-0989, (808) 973-0983, (808) 956-8252
2410 Campus Rd, Honolulu, HI 96822
2555 Dole St, Honolulu, HI 96822
2538 Mccarthy Mall, Honolulu, HI 96822
(808) 956-8177, (808) 973-0989, (808) 973-0983, (808) 956-8252
Publications
Us Patents
Method And Apparatus For Wavefront Sensing
View pageUS Patent:
6452145, Sep 17, 2002
Filed:
May 26, 2000
Appl. No.:
09/579786
Inventors:
J. Elon Graves - Honolulu HI
Malcolm J. Northcott - Honolulu HI
Malcolm J. Northcott - Honolulu HI
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
G01J 120
US Classification:
2502019, 356121
Abstract:
A wavefront sensor for detecting the wavefront produced by light waves from a light source comprises optically refractory or reflective means for receiving the light waves from the light source and producing two defocused pupil images at two different locations along an optical axis. A detector is positioned at a location spaced from the two locations of the two focused pupil images for the detector means to receive and detect two equally and oppositely defocused pupil images. A computer with appropriate software processes the characteristics of the two defocused pupil images from the detector to determine the curvature of the wavefront based on the light intensities with Dirichlets boundary conditions for the light waves received by the wavefront sensor.
Deformable Curvature Mirror
View pageUS Patent:
6464364, Oct 15, 2002
Filed:
Jan 25, 2001
Appl. No.:
09/769988
Inventors:
J. Elon Graves - Kailua HI
Malcolm J. Northcott - Kailua HI
Malcolm J. Northcott - Kailua HI
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
G02B 2600
US Classification:
359846, 359224, 359291, 359295
Abstract:
A deformable curvature mirror capable of controlled deformation by applying electrical voltages to electrode segments on the back of the mirror. Two plates of an electro-restrictive material, such as PZT or PMN, are jointed together with at least one conductive layer sandwiched therebetween. One plate has an outer conductive layer and a mirrored surface on the outer conductive layer. The conductive layers are electrically grounded. The other plate has a pattern of a plurality of electrode segments on the outer surface with each electrode segment having a separate electrical terminal for applying a variable electrical voltage thereto for separately transmitting a variable current through each electrode segment and through at least the other plate for causing variable expansion of the plate and thereby selectively deforming that plate and, in turn, the deformable curvature mirror.
Mounting Apparatus For A Deformable Mirror
View pageUS Patent:
6568647, May 27, 2003
Filed:
Jan 25, 2001
Appl. No.:
09/769874
Inventors:
J. Elon Graves - Kailua HI
Malcolm J. Northcott - Kailua HI
Malcolm J. Northcott - Kailua HI
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
A47G 124
US Classification:
248476, 24828851, 359845, 359847
Abstract:
A mounting apparatus for a deformable mirror that has a peripheral mounting portion with oppositely facing and parallel mounting surfaces. A base member and a mounting ring have juxtaposed peripheral flange portions with rubber o-rings for engaging the parallel mounting surfaces of the mirror. A plurality of set screws are provided in the base member and the mounting ring in the peripheral flange portions and engage the o-rings for applying and adjusting a mounting force to the mounting surfaces of the mirror. The base member is also provided with set screws in the perimeter for engaging and centering the mirror.
Atmospheric Optical Data Transmission System
View pageUS Patent:
6721510, Apr 13, 2004
Filed:
Jun 26, 2001
Appl. No.:
09/892913
Inventors:
J. Elon Graves - Campbell CA
Malcolm J. Northcott - Campbell CA
Malcolm J. Northcott - Campbell CA
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
H04B 1000
US Classification:
398129, 398122, 398131
Abstract:
A free-space optical data transmission system, comprised of first and second transceivers spaced a substantial distance from each other and having telescopes aimed at each other. Each transceiver has a light transmitter for transmitting data-encoded light from its telescope to the other telescope, and a light receiver for receiving the data-encoded light from the other telescope. Each transceiver has a wavefront sensor for determining the curvature of the wavefront of light transmitted between the telescopes, which light wavefront may be distorted by atmospheric aberrations, a deformable curvature mirror operably connected to the wavefront sensor and positioned in the path of the data-encoded light for modifying the wavefront curvature of the data-encoded light in response to the wavefront curvature determined by the wavefront sensor. Preferably, each transceiver has an arrangement for distinguishing/separating the transmitted and received light waves for bi-directional data transmission.
Deformable Curvature Mirror With Unipolar-Wiring
View pageUS Patent:
6874897, Apr 5, 2005
Filed:
Oct 8, 2002
Appl. No.:
10/266981
Inventors:
J. Elon Graves - Kailua HI, US
Malcolm J. Northcott - Kailua HI, US
Malcolm J. Northcott - Kailua HI, US
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
G02B005/08
G02B026/00
G02B026/06
G02B026/00
G02B026/06
US Classification:
359846, 359838, 359295
Abstract:
A deformable curvature mirror capable of controlled deformation by applying unipolar electrical voltages to electrode segments on the back of the mirror. Two plates of an electro-restrictive material, such as PZT or PMN, are jointed together. One plate has a pattern of a plurality of electrode segments on the outer surface with each electrode segment having a separate electrical terminal for applying a variable unipolar electrical voltage thereto for causing variable expansion of the plate and thereby selectively deforming that plate and, in turn, the deformable curvature mirror.
Deformable Mirror With Perimeter Wiring
View pageUS Patent:
7019888, Mar 28, 2006
Filed:
Oct 16, 2003
Appl. No.:
10/688087
Inventors:
J. Elon Graves - Los Gatos CA, US
Malcolm J. Northcott - Felton CA, US
J. Christopher Shelton - Los Gatos CA, US
Malcolm J. Northcott - Felton CA, US
J. Christopher Shelton - Los Gatos CA, US
Assignee:
Aoptix Technologies - Campbell CA
International Classification:
G02B 26/00
US Classification:
359295, 359290, 359291, 359846
Abstract:
A deformable mirror for an adaptive optics system includes a number of electrodes for causing deformation of the mirror. An insulating layer and a layer of conductive traces over the electrodes allow the connection points for the electrodes to be moved to a perimeter region of the mirror, which facilitates connecting the mirror to a circuit board or other equipment. In one implementation, the deformable mirror is coupled to a circuit board by a strip connector (e. g. , a zebra strip connector), which is maintained in a compressed state by a retaining plate.
Electromagnetically Driven Membrane Mirror Assembly
View pageUS Patent:
7102114, Sep 5, 2006
Filed:
Mar 4, 2004
Appl. No.:
10/794973
Inventors:
J. Elon Graves - Los Gatos CA, US
Malcolm J Northcott - Felton CA, US
J. Christopher Shelton - Los Gatos CA, US
Jeffrey W Douglass - Campbell CA, US
Malcolm J Northcott - Felton CA, US
J. Christopher Shelton - Los Gatos CA, US
Jeffrey W Douglass - Campbell CA, US
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
G02B 7/04
G02B 7/182
G02B 7/182
US Classification:
2502019, 359872, 359846
Abstract:
In an optics system, a flexible mirror is deformed with an electromagnetic force. In one embodiment, an electrical current is directed through the mirror, or a conductor attached to the mirror, in the presence of a magnetic field. In one application in an adaptive optics system, the membrane mirror is used in a wavefront sensor. Deformed to oscillate between convex and concave positions, the mirror is used to alternately defocus a received light signal for determining aberrations in the light signal. By detecting aberrations in the light signal, the adaptive optics system can correct for those aberrations.
Free Space Optical Communication System With Power Level Management
View pageUS Patent:
7286766, Oct 23, 2007
Filed:
Apr 15, 2003
Appl. No.:
10/417471
Inventors:
J. Christopher Shelton - Los Gatos CA, US
Malcolm J. Northcott - Felton CA, US
Raymond W. Tang - Cupertino CA, US
Malcolm J. Northcott - Felton CA, US
Raymond W. Tang - Cupertino CA, US
Assignee:
AOptix Technologies, Inc. - Campbell CA
International Classification:
H04B 10/00
US Classification:
398119, 398120, 398123, 398131, 398125
Abstract:
A free space optical communication system includes an adaptive optical power regulator. The adaptive optical power regulator adapts to changes in effective loss associated with the free space optical path. In one embodiment the adaptive optical power regulator adapts to scintillation losses. In another embodiment, the adaptive optical power regulator further adapts to changes in atmospheric loss associated with changes in weather.