News Column

Patent Issued for LED Based Lighting System

July 23, 2014



By a News Reporter-Staff News Editor at Journal of Engineering -- Cree, Inc. (Durham, NC) has been issued patent number 8772798, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventor is Seibel, Harry (Durham, NC).

This patent was filed on September 4, 2012 and was published online on July 8, 2014.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Light emitting diode (LED) lighting systems are becoming prevalent as replacements for older lighting systems and are used in many other applications. LED systems are an example of solid state lighting (SSL) and have advantages over traditional lighting solutions, such as incandescent and fluorescent lighting, because they use less energy, are more durable, operate longer, and generally contain no lead or mercury. A solid-state lighting system may take the form of a lighting unit, light fixture, light bulb, or a lamp. An LED lighting system may include, for example, a packaged light emitting device including one or more light emitting diodes (LEDs), which may include inorganic LEDs, which may include semiconductor layers forming p-n junctions and/or organic LEDs, which may include organic light emission layers.

"LEDs may generate light in a wide variety of colors and can be combined in multi-color arrays that can be controlled to deliver virtually any color light including light perceived as white or near-white. Output color of such a device may be altered by separately adjusting the supply of current to different color LEDs."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventor's summary information for this patent: "In one embodiment, an LED for emitting light comprising at least one constituent of a color spectrum. The LED chip is mounted on a component having a component surface. A colorant of a first color is applied to the component surface where the colorant is in the color spectrum of the at least one color constituent.

"In another embodiment an LED device comprises a plurality of LED chips each of the LED chips emitting light of a color spectrum. The plurality of LED chips are mounted on a component having a component surface. A colorant is applied to the component surface where the colorant is in the color spectrum of at least one of the plurality of LED chips.

"In another embodiment an LED device comprises an LED chip for emitting light of a color spectrum, the LED chip being mounted on a component having a component surface. A colorant is applied to the exposed surface where the colorant is selected to reflect light to color tune the light emitted from the LED device to obtain a desired CRI.

"In still another embodiment, an LED device comprises an LED chip for emitting light of a color spectrum. The LED chip is mounted on a component having a component surface. A colorant is applied to the component surface where the colorant is in a second color spectrum.

"The LED device may comprise a lens that receives the light. The component surface may reflect a portion of the light emitted from the LED chip. The colorant may be in a solder mask applied to the component. The colorant may be applied to the entire component surface. The colorant may be applied to a portion of the exposed component surface. The colorant may be applied to a first component surface and a second color is applied to a second component surface. The colorant may be applied to a first area of the component surface and a second color may be applied to a second area of the component surface. The colorant may be in the color spectrum of the light emitted from a first one of the plurality of LED chips and the second color may be in the spectrum of the light emitted from a second one of the plurality of LED chips, where the color of the light emitted from the first one of the plurality of LED chips is different than the color of the light emitted from the second one of the plurality of LED chips."

For the URL and additional information on this patent, see: Seibel, Harry. LED Based Lighting System. U.S. Patent Number 8772798, filed September 4, 2012, and published online on July 8, 2014. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8772798.PN.&OS=PN/8772798RS=PN/8772798

Keywords for this news article include: Cree Inc.

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Source: Journal of Engineering


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