News Column

Patent Issued for Optical Semiconductor Lighting Apparatus

August 27, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventors Kim, Dong-Soo (Ansan-si, KR); Kang, Seok-Jin (Seoul, KR); Jeong, Min-A (Seongnam-si, KR), filed on January 24, 2013, was published online on August 12, 2014.

The assignee for this patent, patent number 8801231, is POSCO LED Company Ltd. (Seongnam-si, KR).

Reporters obtained the following quote from the background information supplied by the inventors: "The present invention relates to an optical semiconductor lighting apparatus. More particularly, the invention relates to an optical semiconductor lighting apparatus operable to be disposed in a workplace having air entrained particulates, to generate ambient light.

"Artificial light sources employed in lighting devices include an incandescent lamp, fluorescent lamp, etc. More recently, a light emitting diode (LED) element has been successfully employed as a light source. The LED element has many desirable advantages such as luminous efficiency, low power consumption, ecological friendliness, etc. Lighting apparatus including an LED element may be used for an indoor lamps in a home or office, or in a more industrial environment such as in an industrial workplace where automobiles are being assembled, iron smelting is occurring, textile sewing operations are taking place, etc. However, in many industrial plants dust, air entrained particulates or foreign substances may exist which may penetrate into a lighting to cause failure or inefficient operation of the lighting apparatus, or may be deposited on the surface of the lighting apparatus which tend to reduce luminous efficiency and heat dissipation efficiency. In addition, dust, air entrained particulates, foreign substances, etc. may stick to a reflector of a lighting fixture, to reduce reflection efficiency and heat dissipation efficiency of the reflector or as a minimum damage the appearance of the fixture.

"Especially, in instances of a workplace environment with high ambient temperatures such as in iron production, for example, heated air rises and dust, air entrained particulates or foreign substances are born along with an ascending air current and can be deposited on a lighting element, a reflector, etc. of a lighting fixture. Therefore, in order to prevent an accumulation of the dust, air entrained particulates, and other foreign substances it is a conventional maintenance requirement that a worker routinely clean lighting fixtures."

In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "Exemplary embodiments of the present invention provide an optical semiconductor lighting apparatus capable of enhancing luminous efficiency, reflection efficiency, heat dissipation efficiency, and reducing maintenance cost by preventing dust, air entrained particulates, foreign substances and the like from penetrating into the optical semiconductor lighting apparatus or adhering to a reflector or other surfaces of the optical semiconductor lighting apparatus.

"Additional features of the invention will be set forth in the description which follows, and will be apparent to one of ordinary skill in the art from the description and drawings of illustrative embodiments.

"An exemplary embodiment of the present invention comprises an optical semiconductor lighting apparatus including a housing with a first end portion and a second end portion that is open, a light source module disposed in the housing, a fan disposed adjacent to the light source module in the housing, the fan rotating in a first direction to blow air toward the light source module, and a reflector disposed adjacent to the second end portion of the housing, the reflector enhancing an illumination scope. A moving path, in which at least a portion of the air drawn into the housing by the fan externally flows through the light source module is formed in the housing.

"It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the scope of the invention which is defined by the claims."

For more information, see this patent: Kim, Dong-Soo; Kang, Seok-Jin; Jeong, Min-A. Optical Semiconductor Lighting Apparatus. U.S. Patent Number 8801231, filed January 24, 2013, and published online on August 12, 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=8801231.PN.&OS=PN/8801231RS=PN/8801231

Keywords for this news article include: Electronics, Semiconductor, POSCO LED Company Ltd..

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Source: Electronics Newsweekly


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