Robert T Pierce
Plumbers at Bruce Dr, Longmont, CO
License number
Colorado 278950
Issued Date
Jan 13, 1982
Renew Date
Aug 31, 1987
Expiration Date
Aug 31, 1987
Type
Journeyman Plumber
Address
Address
720 Bruce Dr, Longmont, CO 80513
Professional information
Pointable Optical Transceivers For Free Space Optical Communication
US Patent:
6972904, Dec 6, 2005
Filed:
Dec 9, 2003
Appl. No.:
10/732902
Inventors:
Nicholas E. Bratt - Edmonds WA, US
Chace H. Fadlovich - Bothell WA, US
Robert M. Pierce - Longmont CO, US
Chace H. Fadlovich - Bothell WA, US
Robert M. Pierce - Longmont CO, US
International Classification:
G02B027/42
US Classification:
359558, 359566, 359 15, 359 19, 359872, 398128, 398130, 398135
Abstract:
Optical transceivers include a diffractive optical element (DOE) attached to a surface of a prism or other optical support. The DOE is configured to direct an input optical signal to a planar or curved reflective surface, or receive an output optical signal from the planar or curved reflective surface at angles greater than a critical angle in the prism. In some examples, the optical support includes one or more curved reflective surfaces and the DOE is a hologram. Such optical transceivers include a reflective surface that is rotatable with respect to the DOE, or with respect to a selected communication direction and the DOE for selection of a transmission or reception direction. The optical supports of such optical transceivers can be mounted to a window, and include a reflective region configured to total internally reflect optical signals. Selection of a communication direction is based on a rotation of the rotatable reflective surface.
Extended Source Transmitter For Free Space Optical Communication Systems
US Patent:
RE44472, Sep 3, 2013
Filed:
Jul 3, 2008
Appl. No.:
12/167690
Inventors:
Robert M. Pierce - Longmont CO, US
John A. Bell - Seattle WA, US
Carrie Jean Sjaarda - Kenmore WA, US
David Rush - Sammamish WA, US
John A. Bell - Seattle WA, US
Carrie Jean Sjaarda - Kenmore WA, US
David Rush - Sammamish WA, US
Assignee:
Pertex Telecommunication LLC - Wilmington DE
International Classification:
G02B 6/26, G02B 6/42
US Classification:
385 28, 385 33, 398182, 398200, 398201
Abstract:
An apparatus for transmission of free space optical communication system signals employing a spatially-extended light source and method of using the same. A laser beam source directs an optical signal into a free end of a segment of multimode fiber. As the optical signal passes through the segment of multimode fiber, the optical signal is converted into a mode-scrambled optical signal. This mode-scrambled signal may then be used as a spatially-extended light source that is directed outward as an optical beam through the use of a collimating lens.
Optical Autocovariance Lidar
US Patent:
8077294, Dec 13, 2011
Filed:
Jan 21, 2009
Appl. No.:
12/357251
Inventors:
Christian J. Grund - Boulder CO, US
Robert M. Pierce - Longmont CO, US
Robert M. Pierce - Longmont CO, US
Assignee:
Ball Aerospace & Technologies Corp. - Boulder CO
International Classification:
G01C 3/08
US Classification:
356 401, 356 301, 356 31, 356 41
Abstract:
Lidar systems and methods are provided. The lidar system includes an optical autocovariance receiver and one or more chemical composition sensors or processors, in addition to a Doppler signal processor for obtaining relative wind speed information. The additional processors may include a high spectral resolution lidar signal processor and/or a differential absorption lidar processor that receive input signals from the optical autocovariance receiver. Receivers that may be incorporated into the lidar system, in addition to the optical autocovariance receiver, include a depolarization receiver, a Raman receiver, and/or an Etalon receiver.
Extended Source Transmitter For Free Space Optical Communication Systems
US Patent:
7072543, Jul 4, 2006
Filed:
Oct 7, 2003
Appl. No.:
10/681552
Inventors:
Robert M. Pierce - Longmont CO, US
John A. Bell - Issaquah WA, US
Carrie Sjaarda Cornish - Bellevue WA, US
David Rush - Sammamish WA, US
John A. Bell - Issaquah WA, US
Carrie Sjaarda Cornish - Bellevue WA, US
David Rush - Sammamish WA, US
Assignee:
Terabeam Corporation - Falls Church VA
International Classification:
G02B 6/26, G02B 6/42
US Classification:
385 28, 385 33, 398182, 398200, 398201
Abstract:
An apparatus for transmission of free space optical communication system signals employing a spatially-extended light source and method of using the same. A laser beam source directs an optical signal into a free end of a segment of multimode fiber. As the optical signal passes through the segment of multimode fiber, the optical signal is converted into a mode-scrambled optical signal. This mode-scrambled signal may then be used as a spatially-extended light source that is directed outward as an optical beam through the use of a collimating lens.
Field Widening Lens
US Patent:
8314992, Nov 20, 2012
Filed:
Mar 8, 2011
Appl. No.:
13/043279
Inventors:
Christian J. Grund - Boulder CO, US
Robert M. Pierce - Longmont CO, US
Robert M. Pierce - Longmont CO, US
Assignee:
Ball Aerospace & Technologies Corp. - Boulder CO
International Classification:
G02B 27/10, G02B 27/14
US Classification:
359629, 359618
Abstract:
Field widening lens methods and systems are provided. The field widening lens includes a non-planar primary mirror and a secondary mirror. In addition, separate input and output ports are provided. The field widening lens further provides for an optical path difference for rays within the lens that is essentially zero for any ray within the field of view of an optical system including the field widening lens, regardless of the angle at which the ray entered the lens.
Field Widening Lens
US Patent:
7929215, Apr 19, 2011
Filed:
Feb 20, 2009
Appl. No.:
12/390226
Inventors:
Christian J. Grund - Boulder CO, US
Robert M. Pierce - Longmont CO, US
Robert M. Pierce - Longmont CO, US
Assignee:
Ball Aerospace & Technologies Corp. - Boulder CO
International Classification:
G02B 27/14
US Classification:
359631, 359629
Abstract:
Field widening lens methods and systems are provided. The field widening lens includes a non-planar primary mirror and a secondary mirror. In addition, separate input and output ports are provided. The field widening lens further provides for an optical path difference for rays within the lens that is essentially zero for any ray within the field of view of an optical system including the field widening lens, regardless of the angle at which the ray entered the lens.