Solon, OH, United States
Solon, OH, United States

Time filter

Source Type

Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 150.00K | Year: 2013

Commercial lighting controls are often cumbersome, require extensive wiring and other logistics and are expensive. A much simpler turn-key method for implementing daylighting is preferably. EFOIs solution, called the CRICKET Network, includes ultra-simple sensor along with advanced LED lighting units and the advanced controls software to be developed here. EFOI will develop a low cost Control system for the lighting in commercial buildings. The project will develop lamp-to-lamp communication and optimization software that integrates EFOIs breakthrough sensor technology into a system which is self-commissioning, safely minimizes energy use, and integrates a demand response function. The end objective of the combined Phase I/II effort is a seamless lighting and control system installable at 30 cents a square foot that provides energy savings of over 50% over the state of the art by harvesting daylight efficiently. This will be done with working prototypes installed in a demonstration installation, and committed vendors so the system can be made in the USA with US components. Commercial Applications and Other Benefits The product is being developed primarily for Energy Services Companies (ESCOs), the very companies identified by the White Houses Better Building Initiative as leading the charge for over $4B in Federal and private building upgrades. The software will be used in a LED lamp, which will maximize commercialization potential by enabling retrofitting of commercial spaces. Almost one quarter of electricity used in the US in buildings is used for lighting. The CRICKET Network will save electricity and therefore significant carbon emissions and millions of dollars per year for the US Economy. EFOI is targeting commercial spaces illuminated with linear fluorescent tubes. These markets give a total of 55 Billion Sq Ft of addressable floor space. The novel sensor will reduce energy used in these fixtures by 31%, saving 0.23 quads of energy. The EFOI team is based in Ohio and has a long history of successful technology transition from R & amp;D to the lighting market. EFOI has over half their sales into the ESCO market today and is well poised to quickly bring this technology to a very broad market.


Patent
Energy Focus, Inc. | Date: 2016-04-27

An LED lamp has dual modes of operation from fluorescent lamp fixtures. A first circuit powers at least one LED in a first mode of operation when first and second power connector pins at a first end of the lamp are inserted into power receptacles of the fixture that are directly connected to power mains. A second circuit powers at least one LED in a second mode of operation when the second power connector pin at the first end of the lamp and a third power connector pin at a second end of the lamp are inserted into power receptacles of a fixture powered from an electronic ballast. First and second conduction control means permit the second circuit to power at least one LED during the second mode of operation.


Patent
Energy Focus, Inc. | Date: 2012-09-17

Disclosed is an LED lamp system designed to fit into a fluorescent lamp fixture and to utilize a fluorescent lamp power supply contained in the fixture and receiving power from AC mains. The LED lamp system includes an LED driver which comprises a power factor corrected driver circuit for achieving a power factor of at least about 0.8. The LED driver further comprises a current control circuit, responsive to the presence of a three-wire magnetic ballast in the fluorescent lamp power supply, for increasing the LED operating current above the nominal rated LED operating current and to a level sufficient to achieve power factor of the LED driver of at least about 0.8.


Patent
Energy Focus, Inc. | Date: 2015-05-01

An LED lamp has dual modes of operation from fluorescent lamp fixtures. A first circuit powers at least one LED in a first mode of operation when first and second power pins at a first end of the lamp are inserted into power contacts of the fixture that are directly connected to power mains. A second circuit powers at least one LED in a second mode of operation when the second power pin at the first end of the lamp and a third power pin at a second end of the lamp are inserted into power contacts of a fixture powered from an electronic ballast. First and second conduction control means permit the second circuit to power at least one LED during the second mode of operation.


Patent
Energy Focus, Inc. | Date: 2014-11-26

An LED lamp has dual modes of operation from fluorescent lamp fixtures. A first circuit powers at least one LED in a first mode of operation when first and second power connector pins at a first end of the lamp are inserted into power receptacles of the fixture that are directly connected to power mains. A second circuit powers at least one LED in a second mode of operation when the second power connector pin at the first end of the lamp and a third power connector pin at a second end of the lamp are inserted into power receptacles of a fixture powered from an electronic ballast. First and second conduction control means permit the second circuit to power at least one LED during the second mode of operation.


Patent
Energy Focus, Inc. | Date: 2012-06-20

An elongated LED lighting arrangement comprises an elongated fiberoptic light pipe having an exteriorly facing sidewall between its ends. The light pipe is constructed to promote TIR of light between the ends. A first LED light source is tuned to efficiently provide light within a wavelength range to the pipe. Light-extracting means are applied along the light pipe along the main path of TIR light propagation, and comprise down-converting means tuned to efficiently convert light rays from the LED light source within the wavelength range to lower-energy light rays at respectively longer wavelengths and light-scattering means for extracting from the pipe some light rays within the wavelength range without changing the wavelengths of the foregoing light. The light emitted by the down-converting means and the light-scattering means intermix to produce light, the majority of which has a composite color determined by the foregoing light emitted and the foregoing light extracted.


Patent
Energy Focus, Inc. | Date: 2016-04-27

An LED lamp has dual modes of operation from fluorescent lamp fixtures. A first circuit powers at least one LED in a first mode of operation when first and second power pins at a first end of the lamp are inserted into power contacts of the fixture that are directly connected to power mains. A second circuit powers at least one LED in a second mode of operation when the second power pin at the first end of the lamp and a third power pin at a second end of the lamp are inserted into power contacts of a fixture powered from an electronic ballast. First and second conduction control means permit the second circuit to power at least one LED during the second mode of operation.


Patent
Energy Focus, Inc. | Date: 2012-10-22

Improved side-light distribution systems are disclosed. One exemplary system includes a light source and a side-light distribution member. The light source supplies light to the side-light distribution member having (1) an net port on the first end of the member for receiving the light and (2) a second end having a reflective means. The inlet port consists of part of the surface area of the first end of the member. The reflective means associated with the second end of the member receives light from the first end and directs light towards the first end. At least part of a surface area of the first end of outside of the inlet port includes a reflective means for receiving the light from the second end and directing the light towards the second end of the rod.


Grant
Agency: National Aeronautics and Space Administration | Branch: | Program: STTR | Phase: Phase II | Award Amount: 750.00K | Year: 2011

The proposed effort will develop a solid-state LED replacement lamp for rocket engine test stand lighting and more general hazardous-location lighting. The LED lighting will produce a smoother lighting spectrum compared to the existing arc lamp sources which will improve the visual accuracy and quality of high-speed engine photography. The LED lighting will also last significantly longer than arc lamps which require frequent replacement in hazardous-gas environment. A specialized array of optical collectors will redirect the light more effectively to the needed test areas using principles on non-imaging optics. The result will be improved lighting for engine diagnostics, lower operating costs for the test stand, much longer lamp life and a safer environment by reducing or eliminating lighting maintenance operations in an explosive environment. The housing will also be shock, vibration and heat resistant to be able to withstand the proximate effects of live-fire rocket engine testing. The electronic controls for the lighting will be sited remotely from the lamp head to be consistent with the existing facility and for thermal and reliability considerations. Additionally, a hazardous-location LED lighting device for general illumination which is not for high-speed engine diagnostics will also be developed and tested.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase II | Award Amount: 1.00M | Year: 2010

Color consistency of metal halide lamps must be improved in order to have this high efficiency technology maintain market share in the big-box retail / industrial market and to gain market share in the accent / commercial spot lighting market. Big-box retail stores and industrial space use high wattage metal halide lights today, but the lack of color consistency has been leveraged by Light Emitting Diode fixtures who offer to provide a very consistent color at a higher cost and lower efficiency. The accent and commercial spot lighting markets are dominated by inefficient Tungsten-Halogen lamps. Energy-efficient replacement technologies for incandescent spot lighting do exist but have been slow to gain acceptance because of large variability in lamp color and high initial cost. The proposed project will create an automated color modification system for metal halide lamps to reduce their color variations to equal that of incandescent lamps. Warm color metal halide sources can be made to fall within a single color oval (no perceived color differences). This color correction will enable market acceptance of the unique metal halide systems which outperform incandescent, ceramic metal halide and light emitting diode systems in cost-of-light. Software and programming which demonstrate the feasibility of the color correction algorithm. Real-life manufacturing process and variability were integrated into the simulation. The algorithm enables a metal halide lamp group to have a warm color and very tight color variation. The simulations and programming will be optimized and used to control hardware and coat substrate. The lamps will be manually handled in year one and robotically handled in year two. Cross cutting applications in light emitting diodes and photovoltaics will be explored. Commercial Applications and Benefits: The technology allows high efficiency metal halide technology continue to serve its existing market and expand to new commercial applications. Commercial applications include both new construction projects and retrofits which could be driven by a simple desire for energy savings or customers who are pulled by regulations and incentives.

Loading Energy Focus, Inc. collaborators
Loading Energy Focus, Inc. collaborators