The patent's inventors are Huang, Hsin-Chieh (Hukou Township, Hsinchu County, TW); Yen, Chia-Song (Hukou Township, Hsinchu County, TW); Teng, Shun-Wen (Hukou Township, Hsinchu County, TW).
This patent was filed on
From the background information supplied by the inventors, news correspondents obtained the following quote: "The present invention relates to an optical element, and in particular to an optical element which can enlarge light emitting angle of light.
"A light emitting diode (LED) is a kind of semiconductor device, which exploits the property of direct-bandgap semiconductor material to convert electric energy into light energy efficiently and has the advantages of long service time, high stability and low power consumption and is developed to replace the traditional non-directivity light tube and incandescent lamp.
"The LED is a point-like light source and has high directivity so that the lighting surface of the LED is narrower than that of the traditional light sources, and the luminous intensity of the LED is gradually reduced while the lighting distance is increased, so that the LED is more suitable for providing short-distance and small area lighting fixture, such as table lamp.
"In order to solve the mentioned problem, many manufacturers assemble and arrange multiple LEDs to centralize light for solving the problem of narrow lighting range. However, the required power for driving the LEDs is increased when the number of the LEDs is increased, therefore, the effect of saving energy cannot be achieved. Moreover, the price of LED lamp is far higher than the traditional light source so as to reduce the will of using LED lamp."
Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "Accordingly, the present invention provides an optical element, the optical element can effectively enlarge the emitting angle of light pass through the optical element.
"The present invention further provides an illuminant device, the illuminant device provides a light with large emitting angle.
"Therefore, the present invention provides an optical element, the optical element is assembled with a light emitting diode (LED) to form an illuminative light source. The optical element includes a transparent main body having a light guiding pillar and an extending part. The light guiding pillar has a top surface and a bottom surface opposite the top surface, the bottom surface has a recess. The extending part is extended from the circumference of the top surface and an end of the extending part has at least a light-emitting surface, wherein the LED is disposed on the recess and emits light to the optical element.
"The present invention further provides an illuminant device, the illuminant device includes a circuit board, an LED, an optical element, a cover and a heat sink element. The LED is disposed on the circuit. The optical element includes a light guiding pillar and an extending part. The light guiding pillar has a top surface and a bottom surface opposite to the top surface. The bottom surface has a recess, the LED is disposed on the recess. The extending part is extended from the circumference of the top surface and an end of the extending part has a least a light-emitting surface. The cover is made of transparent material. The heat sink element is assembled with the cover such that the LED and the optical element are arranged between the cover and the heat sink element.
"The optical element of the present invention uses the extending part which is extended from the circumference of the top surface to guide the light entered the optical element so that the light can be refracted by the extending part or reflected to the light-emitting surface and emitting from the light-emitting surface to enlarge the light-emitting angle of light passed through the optical element. Moreover, charging an included angle formed between the light-emitting surface and the bottom surface can provide different forms of luminous intensity distribution such that the optical element can apply in different lighting field."
For the URL and additional information on this patent, see: Huang, Hsin-Chieh; Yen, Chia-Song; Teng, Shun-Wen. Optical Element and Illuminant Device Using the Same. U.S. Patent Number 8523407, filed
Keywords for this news article include: Electronics, Semiconductor, Light-emitting Diode,
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