Richard Lee Powers
Land Surveyors at Kalamath St, Denver, CO

License number
Colorado 3913
Issued Date
Aug 15, 1959
Renew Date
Jun 2, 1984
Expiration Date
Jun 2, 1984
Type
Professional Land Surveyor
Address
Address
500 Kalamath St, Denver, CO 80204

Professional information

Richard Powers Photo 1

Co-Founder/Cto At Weathercloud Inc.

Position:
Co-Founder/CTO at WeatherCloud Inc., Principal at PURE Research and Development, Co-Founder at RavenBrick LLC
Location:
Greater Denver Area
Industry:
Renewables & Environment
Work:
WeatherCloud Inc. - Boulder, Colorado since Jan 2013 - Co-Founder/CTO PURE Research and Development - Denver, Colorado since Jun 2011 - Principal RavenBrick LLC since Dec 2006 - Co-Founder
Education:
University of Colorado Boulder 2000 - 2007
Ph.D., Electrical Engineering
University of Colorado Boulder 1990 - 1991
M.S., Aerospace Engineering


Richard Powers Photo 2

Thermally Switched Optical Downconverting Filter

US Patent:
7768693, Aug 3, 2010
Filed:
Jan 24, 2008
Appl. No.:
12/019602
Inventors:
Wil McCarthy - Lakewood CO, US
Richard M. Powers - Lakewood CO, US
Assignee:
RavenBrick LLC - Denver CO
International Classification:
G02F 1/35, G02F 2/02, F21V 9/04
US Classification:
359326, 359359, 359641, 359707, 359885, 2505171, 349104
Abstract:
A thermally switched optical downconverting (TSOD) filter is a self-regulating device including a downconverter that converts incoming light at a variety of wavelengths into longer-wavelength radiation and then directs it using one or more bandblock filters in either the inward or outward direction, depending on the temperature of the device. This control over the flow of radiant energy occurs independently of the thermal conductivity or insulating properties of the device and may or may not preserve the image and color properties of incoming visible light. The TSOD filter has energy-efficiency implications, as it can be used to regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. The TSOD filter also has aesthetic implications, since the device has unique optical properties that are not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls. The TSOD filter has particular, but not exclusive, application as a building material.


Richard Powers Photo 3

Thermally Switched Absorptive Window Shutter

US Patent:
8169685, May 1, 2012
Filed:
Dec 19, 2008
Appl. No.:
12/340552
Inventors:
Richard M. Powers - Lakewood CO, US
Wil McCarthy - Lakewood CO, US
Assignee:
Ravenbrick, LLC - Denver CO
International Classification:
G02F 1/01, G02B 26/02, E06B 7/00
US Classification:
359288, 359227, 521713
Abstract:
The thermally switched absorptive optical shutter may be a self-regulating “switchable absorber” device that may absorb approximately 100% of incoming light above a threshold temperature, and may absorb approximately 50% of incoming light below a threshold temperature. The shutter may be formed by placing a thermotropic depolarizer between two absorptive polarizers. This control over the flow of radiant energy may occur independently of the thermal conductivity or insulation of the shutter device and may or may not preserve the image and color properties of incoming visible light. This has energy-efficiency implications as it can be used to regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. It also has aesthetic implications since the shutter device has unique optical properties that are not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls. Additionally, the shutter device may have application as a building material.


Richard Powers Photo 4

Thermally Switched Optical Filter Incorporating A Guest-Host Architecture

US Patent:
8284336, Oct 9, 2012
Filed:
Apr 12, 2010
Appl. No.:
12/758573
Inventors:
Richard M. Powers - Lakewood CO, US
Wil McCarthy - Lakewood CO, US
Assignee:
Ravenbrick LLC - Denver CO
International Classification:
G02F 1/133, G02F 1/01
US Classification:
349 20, 349104, 349 19, 349112, 359288
Abstract:
Thermochromic filters are constructed using absorptive, reflective, or fluorescent dyes, molecules, polymers, particles, rods, or other orientation-dependent colorants that have their orientation, order, or director influenced by carrier materials, which are themselves influenced by temperature. These order-influencing carrier materials include thermotropic liquid crystals, which provide orientation to dyes and polymers in a Guest-Host system in the liquid-crystalline state at lower temperatures, but do not provide such order in the isotropic state at higher temperatures. The varying degree to which the absorptive, reflective, or fluorescent particles interact with light in the two states can be exploited to make many varieties of thermochromic filters. Thermochromic filters can control the flow of light and radiant heat through selective reflection, transmission, absorption, and/or re-emission. The filters have particular application in passive or active light-regulating and temperature-regulating films, materials, and devices, and particularly as construction materials and building and vehicle surfaces.


Richard Powers Photo 5

Quantum Dot Switching Device

US Patent:
2007019, Aug 23, 2007
Filed:
Feb 20, 2007
Appl. No.:
11/676785
Inventors:
Wil McCarthy - Lakewood CO, US
Richard M. Powers - Lakewood CO, US
Gary E. Snyder - Lakewood CO, US
Assignee:
THE PROGRAMMABLE MATTER CORPORATION - Lakewood CO
International Classification:
H01L 31/00
US Classification:
257 14
Abstract:
A multifunctional, programmable quantum confinement switching device uses the quantum confinement of charge carriers to operate on an input signal or energy and to release an output signal or energy. Energy enters the device through an input path and leaves through an output path, after being selectively blocked or modified by the switching action of the device under the influence of a control path. The quantum confinement of charge carriers as an artificial atom within a layer of the device in a quantum well or a quantum dot operates as the switch. The artificial atoms serve as dopants within a material supporting the device and are directly related to the voltage between the control path and a ground plane. The electrical, optical, thermal, or other energy passing through the device is selectively blocked, regulated, filtered, or modified by the doping properties of the artificial atoms. The remaining, unblocked energy is then free to exit the device through the output path.


Richard Powers Photo 6

Multicolor Light Emitting Device Incorporating Tunable Quantum Confinement Devices

US Patent:
8363307, Jan 29, 2013
Filed:
Feb 27, 2008
Appl. No.:
12/038677
Inventors:
Wil McCarthy - Lakewood CO, US
Richard M. Powers - Lakewood CO, US
Assignee:
Ravenbrick, LLC - Denver CO
International Classification:
G02F 1/35, G02F 2/02, H01S 3/10
US Classification:
359326, 257 89, 257 98, 372 20
Abstract:
A multicolor light emitting optical device is a programmable, multifunctional, general-purpose, solid-state light source. The device can use any of several light sources, including LEDs. The device couples a light source and a tunable optical converter composed of a quantum confinement device to produce a tunable, monochromatic light emission. The output wavelength of the optical device can be selected from within a tunable range of the optical (visible, near infrared, or near ultraviolet) spectrum on demand, in real time. The optical device is capable of serving as a tunable light source, a “true color” pixel, and a replacement for bi-color, tri-color, and multi-color light-emitting diodes. The optical device has particular, but not exclusive, application as an indicator light, in room lighting, and as a picture element in video displays.


Richard Powers Photo 7

Thermochromic Filters And Stopband Filters For Use With Same

US Patent:
2011010, May 5, 2011
Filed:
Oct 29, 2010
Appl. No.:
12/916233
Inventors:
Wil McCarthy - Lakewood CO, US
Richard M. Powers - Lakewood CO, US
Assignee:
RavenBrick LLC - Denver CO
International Classification:
G02F 1/01
US Classification:
359288
Abstract:
Thermochromic filters use combinations of absorptive, reflective, thermoabsorptive, and thermoreflective elements covering different portions of the solar spectrum, to achieve different levels of energy savings, throw, shading, visible light transmission, and comfort. Embodiments include stopband filters in the near-infrared spectrum.


Richard Powers Photo 8

Wavelength-Specific Optical Switch

US Patent:
2011020, Aug 25, 2011
Filed:
May 3, 2011
Appl. No.:
13/100000
Inventors:
Richard M. Powers - Lakewood CO, US
Wil McCarthy - Lakewood CO, US
Assignee:
RavenBrick LLC - Denver CO
International Classification:
G02B 5/22
US Classification:
359889
Abstract:
A wavelength-specific optical switch combines one or more tunable filters and bandblock reflectors such that the absorption or reflection of selected wavelength bands in the optical spectrum (visible, near infrared, or near ultraviolet) can be switched on and off. The wavelength switch is programmable, multifunctional, general-purpose, solid-state optical filter. The wavelength switch may serve as a tunable notch or bandblock filter, a tunable bandpass filter, a tunable highpass or lowpass filter, or a tunable band reflector. The wavelength switch has particular, but not exclusive, application in optics as a filter, band reflector, and as a means of isolating particular wavelengths or wavelength bands from a collimated light stream for transmission to, or rejection from, a sensor.


Richard Powers Photo 9

Polymer-Stabilized Thermotropic Liquid Crystal Device

US Patent:
2011023, Sep 29, 2011
Filed:
Mar 29, 2011
Appl. No.:
13/074876
Inventors:
Richard M. Powers - Lakewood CO, US
Wil McCarthy - Lakewood CO, US
Neil B. Cramer - Boulder CO, US
Christopher M. Caldwell - Denver CO, US
Michael Pickford - Denver CO, US
Matthew B. Kish - Denver CO, US
Andrew L. LaFrate - Boulder CO, US
Assignee:
RavenBrick LLC - Denver CO
International Classification:
G02F 1/1333, B05D 5/06, B05D 3/02, B05D 3/06, B05D 3/10, B32B 37/02, B32B 37/14, B32B 38/10
US Classification:
349 86, 427164, 156 60, 156250, 427521, 427517
Abstract:
A resizable polymer-stabilized, thermotropic liquid crystal device formulation is used in passive or active light-regulating and temperature-regulating films, materials and devices, including construction materials. Implementations of the device may be composed of five basic elements: one or more transparent substrates, a transparent surface treatment, a liquid crystal mixture, a stabilizing polymer, and spacer beads. The polymer-stabilized liquid crystal is coated and cured on at least one substrate. The transparent surface treatment and the stabilizing polymer network are selected to provide phase separation, curing, and adhesion within the LC mixture. The substrate or substrates may be polarizing or nonpolarizing.


Richard Powers Photo 10

Multifunctional Building Component

US Patent:
2011029, Dec 1, 2011
Filed:
Jun 1, 2011
Appl. No.:
13/150475
Inventors:
Wil McCarthy - Lakewood CO, US
Richard M. Powers - Lakewood CO, US
Alex K. Burney - Denver CO, US
Assignee:
RavenBrick LLC. - Denver CO
International Classification:
G02F 1/15, G02F 1/01
US Classification:
359265, 359288
Abstract:
A multifunctional building component is capable of serving as one or more of a window, a wall, a shading device, a roofing element, a color panel, a display, and an energy harvesting, storage, and distribution element. The