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Title: Integrated LED-based luminaire for general lighting

Abstract

Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Inventors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC., Burlington, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1311869
Patent Number(s):
9,429,279
Application Number:
13/757,919
Assignee:
PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC. NETL
DOE Contract Number:
FC26-06NT42932
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 04
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING

Citation Formats

Dowling, Kevin J., Lys, Ihor A., Williamson, Ryan C., Roberge, Brian, Roberts, Ron, Morgan, Frederick, Datta, Michael Jay, and Mollnow, Tomas Jonathan. Integrated LED-based luminaire for general lighting. United States: N. p., 2016. Web.
Dowling, Kevin J., Lys, Ihor A., Williamson, Ryan C., Roberge, Brian, Roberts, Ron, Morgan, Frederick, Datta, Michael Jay, & Mollnow, Tomas Jonathan. Integrated LED-based luminaire for general lighting. United States.
Dowling, Kevin J., Lys, Ihor A., Williamson, Ryan C., Roberge, Brian, Roberts, Ron, Morgan, Frederick, Datta, Michael Jay, and Mollnow, Tomas Jonathan. 2016. "Integrated LED-based luminaire for general lighting". United States. doi:. https://www.osti.gov/servlets/purl/1311869.
@article{osti_1311869,
title = {Integrated LED-based luminaire for general lighting},
author = {Dowling, Kevin J. and Lys, Ihor A. and Williamson, Ryan C. and Roberge, Brian and Roberts, Ron and Morgan, Frederick and Datta, Michael Jay and Mollnow, Tomas Jonathan},
abstractNote = {Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

Patent:

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  • Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.
  • A strong systems approach to designing and building practical LED-based replacement lamps is lacking. The general method of taking high-performance LEDs and marrying them to standard printed circuit boards, drivers and a heat sink has fallen short of the promise of LED lighting. In this program, a top-down assessment of requirements and a bottom-up reinvention of LED sources, electronics, optics and mechanics have resulted in the highest performance lamp possible. The team, comprised of Color Kinetics, the leaders in LED lighting and Cree, the leaders in LED devices took an approach to reinvent the package, the driver and the overallmore » form and aesthetic of a replacement source. The challenge was to create a new benchmark in LED lighting - the resultant lamp, a PAR38 equivalent, met the light output, color, color quality and efficacy marks set out in the program as well as being dimmable, which is important for market acceptance. The approach combined the use of multiple source die, a chip-on-board approach, a very efficient driver topology, the use of both direct emission and phosphor conversion, and a unique faceted optic to avoid the losses, artifacts and hotspots of lensed approaches. The integral heat sink provided a mechanical base and airflow using a chimney-effect for use in a wide variety of locations and orientations. These research results led to a much better understanding of the system effects of component level technologies. It was clear that best-of-breed sub-system results do not necessarily result in the best end result for the complete system. In doing this work, we did not neglect the practical aspects of these systems. These were not rarified results and commercially impractical but lent themselves to eventual commercial products in the marketplace. The end result - a high performance replacement lamp - will save significant energy while providing a high-quality light source.« less
  • An embodiment of the present invention pertains to an electroluminescent lighting device for area illumination. The lighting device is fault tolerant due, in part, to the patterning of one or both of the electrodes into strips, and each of one or more of these strips has a fuse formed on it. The fuses are integrated on the substrate. By using the integrated fuses, the number of external contacts that are used is minimized. The fuse material is deposited using one of the deposition techniques that is used to deposit the thin layers of the electroluminescent lighting device.
  • Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route for converting precursors into such phosphor material. In some embodiments, the nanocrystalline oxide-based phosphor materials are quantum splitting phosphors. In some or other embodiments, such nanocrystalline oxide based phosphor materials provide reduced scattering, leading to greater efficiency, when used in lighting applications.
  • A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor.