Light emitting diode (LED) light source
An LED light source and axis technology, applied in electrical components, circuits, semiconductor devices, etc., can solve the problems of reducing production efficiency, increasing costs, and unable to pass the reflow soldering process, and achieving the effect of lengthening the light-emitting angle and large irradiation area.
Inactive Publication Date: 2012-07-18
江苏丰庆源科技有限公司
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Problems solved by technology
Therefore, it is necessary to add a lens or a reflector on the outside of the traditional LED for secondary optical light distribution to meet the requirements of street lights. However, these measures have the following defects: 1. The additional lens has a different refractive index from the original silicone lens, which produces a certain degree of light. 2. In order to meet the requirements of street lights, each traditional LED light source must be added with a lens or reflector, which increases costs and reduces production efficiency; 3. Optical accessories such as lenses or reflectors cannot pass through the reflow Welding process increases the difficulty of mass production and reduces production efficiency
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[0012] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0013] see figure 1 and figure 2 , an LED light source, comprising: a substrate 1 and a packaging cover 2 packaged on the substrate 1, the packaging cover 2 is provided with a first raised portion 20 and a second raised portion 21, the first raised portion A groove 22 is provided between the first raised portion 20 and the second raised portion 21, and both the first raised portion 20 and the second raised portion 21 are smooth curved surface structures. The package cover 2 has a first axis 23 and a second axis 24 perpendicular to the first axis 23, the package cover 2 is axisymmetric with respect to the first axis 23, and the package cover 2 is axisymmetric with ...
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The invention discloses a light emitting diode (LED) light source, which comprises a base and a packaging cover which is packaged on the base. The packaging cover is provided with a first protruding portion and a second protruding portion, a groove is arranged between the first protruding portion and the second protruding portion, and the first protruding portion and the second protruding portion are of smooth curved surface body structures. According to the LED light source, viewing angle is lengthened, non-centrosymmetry batwing light density distribution is achieved, the light vertically cast on road surface is shaped like an oblong, irradiated area is large, and the requirement of roadway illumination is met.
Description
technical field [0001] The invention relates to an LED light source. Background technique [0002] LED (Light Emitting Diode), a light-emitting diode, is a solid-state semiconductor device that can directly convert electricity into light. It has the characteristics of small size, low power consumption, long service life, high brightness, environmental protection, and durability. LED street lamps use light-emitting diodes as light sources, adopt a planar dot matrix layout, and perform two optical light distributions through additional lenses to elongate the light-emitting angle to achieve batwing light intensity distribution and meet the needs of road lighting. The traditional LED packaging cover is hemispherical or ellipsoidal. The light distribution curve of this light source is symmetrical at both ends, and the illuminance distribution of the light source irradiating the ground is basically circular. This illuminance distribution is not suitable for the lighting range requ...
Claims
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IPC IPC(8): H01L33/58
Inventor 朱功波江明季伟源陆鑫豪吴彬
Owner 江苏丰庆源科技有限公司