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Patent Issued for Illumination Device, Light Source, and Light Module

July 15, 2014



By a News Reporter-Staff News Editor at Journal of Technology -- From Alexandria, Virginia, VerticalNews journalists report that a patent by the inventors Lo, Hsin-Hsiang (Hsinchu County, TW); Lin, Chun-Chuan (Hsinchu, TW); Tiao, Kuo-Tung (Hsinchu County, TW); Li, Chao-We (Hsinchu, TW); Hu, Hung-Lieh (Hsinchu, TW); Chen, Chen-Kun (Changhua County, TW), filed on March 2, 2012, was published online on July 1, 2014.

The patent's assignee for patent number 8764228 is Industrial Technology Research Institute (Hsinchu, TW).

News editors obtained the following quote from the background information supplied by the inventors: "Light-Emitting Diodes (LED) are semiconductor components. The materials of the light-emitting chips are mainly chemical compounds of groups III-V, such as gallium phosphide (GaP) or gallium arsenide (GaAs), and are capable of converting electrical energy into optical energy. The lifespan of LEDs is more than a hundred thousand hours, and LEDs have quick response, small size, low power consumption, low pollution, high reliability, and are suitable for mass production.

"With increasing demands for energy conservation and environmental protection, it has become a trend worldwide for people to use LEDs to construct lighting devices for use in daily life. In common practice, LEDs are usually installed on a carrier (e.g. a printed circuit board) to become an illumination device.

"Nevertheless, LEDs produce a lot of heat at the same time as producing light. Therefore, the heat generated by the LEDs among the abovementioned lighting components is often unable to be effectively dissipated to the exterior, thus resulting in reduction of device performance. As a result, concurrently achieving both light source illumination and heat dissipation efficiency in order to enhance the reliability of LEDs has become an essential topic."

As a supplement to the background information on this patent, VerticalNews correspondents also obtained the inventors' summary information for this patent: "The disclosure provides an illumination device, a light source and a light module having concurrently both enhanced illumination and enhanced heat dissipation efficiency.

"According to one exemplary embodiment, an illumination device comprises a base, a light bar and a cover. The base has a cavity. The light bar is disposed at the bottom of the cavity. The light bar comprises a plurality of dot light sources arranged along a first axial direction. The cover is assembled to the base for correspondingly covering the light bar. The cover has a plurality of openings, and the distribution density of the openings increases from a corresponding location of a dot light source towards two opposite ends along the first axial direction.

"According to one exemplary embodiment, a light source comprises a light bar and a cover. The light bar comprises a plurality of dot light sources arranged along a first axial direction. The cover covers the light bar. The cover has a plurality of openings, and the distribution density of the openings increases from a corresponding location of a dot light source towards two opposite ends along the first axial direction.

"According to one exemplary embodiment, a light module comprises a plurality of light bars arranged along a second axial direction and a cover correspondingly covering the light bars. Each of the light bars comprises a plurality of dot light sources arranged along a first axial direction. The cover has a plurality of openings, and the distribution density of the openings increases from a corresponding location of a dot light source towards two opposite ends along the first axial direction.

"According to one exemplary embodiment, an illumination device comprises a base and a plurality of light sources. The base has a central axial direction and a plurality of cavities surrounding the arranged central axial direction. The light sources are disposed separately at the cavities. Each of the light sources comprises a light bar and a cover. The light bar is located at the bottom of the corresponding cavity, and the light bar comprises a plurality of dot light sources. The cover is assembled to the base for covering the cavity and the light bar inside the cavity. The cover has a plurality of openings, and the distribution density of the openings increases when going from a corresponding location of a dot light source towards an adjacent dot light source location.

"Based on the above, in another exemplary embodiment, the light source, the light module and the illumination device use the cover with a plurality of openings to cover the light bar, so as to enable the light of the dot light source to emit out of the cover in a more uniform manner. Furthermore, heat generated by the dot light source can also be dissipated effectively with the presence of these openings, thus improving the reliability of the dot light source. Therefore, the light source, the light module and the illumination device concurrently have enhanced illumination and enhanced heat dissipation efficiency.

"Several exemplary embodiments accompanied with figures are described in detail below to further describe the disclosure in details."

For additional information on this patent, see: Lo, Hsin-Hsiang; Lin, Chun-Chuan; Tiao, Kuo-Tung; Li, Chao-We; Hu, Hung-Lieh; Chen, Chen-Kun. Illumination Device, Light Source, and Light Module. U.S. Patent Number 8764228, filed March 2, 2012, and published online on July 1, 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=8764228.PN.&OS=PN/8764228RS=PN/8764228

Keywords for this news article include: Industrial Technology Research Institute.

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Source: Journal of Technology


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