News Column

Patent Issued for LED Lighting Apparatus

August 20, 2014



By a News Reporter-Staff News Editor at Journal of Engineering -- From Alexandria, Virginia, VerticalNews journalists report that a patent by the inventor Kim, Jong Woon (Seoul, KR), filed on December 18, 2012, was published online on August 5, 2014.

The patent's assignee for patent number 8794816 is LG Innotek Co., Ltd. (Seoul, KR).

News editors obtained the following quote from the background information supplied by the inventors: "A light emitting diode (LED) is a kind of a semiconductor device that converts electric energy into light.

"The LED is advantageous as compared with a conventional light source, such as a fluorescent lamp or an incandescent lamp, in terms of life span, response characteristics, stability and environmental-friendly requirement.

"In this regard, various studies have been performed to replace the conventional light sources with the LEDs. The LEDs are increasingly used as light sources for lighting devices, such as various lamps used indoors and outdoors, liquid crystal displays, electric signboards, and street lamps.

"FIG. 1 is a view showing a structure of an LED lighting apparatus according to the related art.

"Referring to FIG. 1, the LED lighting apparatus includes a heat radiation frame 10, a substrate 30 which is formed in the heat radiation frame 10 and to which at least one light emitting device 20 is attached, and a diffusion frame 40 which covers the substrate 30 to which the light emitting device is attached.

"Further, a reception groove (not shown) is formed in the heat radiation frame 10, and a power supplying module (not shown) is provided in the reception groove.

"The power supply module is electrically connected to the light emitting device 20 attached to the substrate 30 to supply a driving power for driving the light emitting device 20.

"The light emitting device 20 generates light by the driving power supplied through the power supply module. The generated light is radiated to the outside through the diffusion frame 40.

"However, the LED lighting apparatus described above is not equipped with a function of controlling an intensity of light generated from the light emitting device 20 through the communicate with the outside.

"In order to have the function of automatically controlling the light intensity, an additional communication module for communicating with the outside must be disposed in the reception groove of the heat radiation frame 10.

"However, since the heat radiation frame 10 has a wave shielding function, the performance of the communication module placed in the heat radiation frame 10 is degraded due to the wave shielding function of the heat radiation frame 10."

As a supplement to the background information on this patent, VerticalNews correspondents also obtained the inventor's summary information for this patent: "The embodiment provides an LED lighting apparatus having a wireless control function.

"The embodiment provides an antenna structure which improves a signal receiving performance and an LED lighting apparatus including such an antenna.

"Technical objects of the embodiment may not be limited to the above-mentioned objects and other technical objects of the embodiment will be apparent to those skilled in the art from the following description.

"An LED lighting apparatus according to the embodiment includes: a heat radiation frame having a reception groove therein; a substrate disposed on a top surface of the heat radiation frame and to which at least one light emitting device is attached; an antenna on a top surface of an upper end portion of the heat radiation frame; and a diffusion frame combined with the light emitting frame and formed therein with a reception groove for receiving the substrate and the antenna.

"The upper end portion of the heat radiation frame has a flat top surface, and the substrate and the antenna are disposed on the top surface of the upper end portion.

"The antenna is exposed out of the heat radiation frame.

"A power supply module is disposed in the reception groove of the heat radiation frame, wherein the light emitting device attached to the substrate is electrically connected to the power supply module.

"A communication module is disposed in the reception groove of the heat radiation frame, and the antenna is connected to the communication module.

"The substrate is provided in a central region of the top surface of the heat radiation frame while partially exposing the top surface of the heat radiation frame, and the antenna is formed in an outer peripheral region of the top surface exposed by the substrate.

"The top surface of the upper end portion of the heat radiation frame has a through hole through which the antenna is inserted into the reception groove.

"One end of the antenna is connected to the top surface of the heat radiation frame and an opposite end of the antenna is inserted into the through hole and connected to the communication module disposed in the reception groove.

"A plurality of protrusions formed on the top surface of the heat radiation frame, wherein the antenna is formed on the protrusions.

"According to the embodiment described above, in order to remove the wave shielding by the RF receiving module installed in the heat radiation metal case, the antenna for receiving a signal is exposed out of the heat radiation metal case, so that the signal reception performance of the antenna embedded in the LED lighting apparatus having the wireless control function can be improved.

"Meanwhile, other various effects of the embodiment will be directly or indirectly disclosed in the following detailed description of the embodiment."

For additional information on this patent, see: Kim, Jong Woon. LED Lighting Apparatus. U.S. Patent Number 8794816, filed December 18, 2012, and published online on August 5, 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=8794816.PN.&OS=PN/8794816RS=PN/8794816

Keywords for this news article include: LG Innotek Co. Ltd.

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Source: Journal of Engineering


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