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Light-emitting diode (LED) lamp source

A technology of light-emitting diodes and light sources, applied in the field of light-emitting diode light sources, can solve the problems of concentrated light field intensity distribution, uniformity and poor performance of light emitting angle, etc., and achieve the effect of large lighting range

Active Publication Date: 2013-01-09
AMTRAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Please also refer to Figure 1A and Figure 1B , the lampshade 110 of the existing LED lamp source 100 is usually hemispherical, so when the light provided by the LED (not shown) in the lamp source 100 passes through the lampshade and exits the lamp source 100, the light field intensity distribution It will still be over-concentrated in the center, resulting in poor uniformity and light output angle

Method used

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  • Light-emitting diode (LED) lamp source
  • Light-emitting diode (LED) lamp source
  • Light-emitting diode (LED) lamp source

Examples

Experimental program
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Embodiment Construction

[0059] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of multiple embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the accompanying drawings. Accordingly, the directional terms are used to illustrate, not to limit, the invention.

[0060] Figure 2A It is a three-dimensional schematic diagram of an LED light source according to an embodiment of the present invention, Figure 2B for Figure 2A The exploded schematic diagram of the LED light source, Figure 3A for Figure 2A The partial cross-sectional schematic diagram of the light beam traveling of the LED light source, while Figure 3B then Figure 2A Schematic illustration of the light field distribution provided by the LED light source. Pl...

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Abstract

The invention relates to a light-emitting diode (LED) lamp source. The LED lamp source comprises a radiating block, a lamp source panel, a light reflection support and a secondary optical element. The lamp source panel consists of a circuit board positioned on the radiating block and a light-emitting element positioned on the circuit board. The light reflection support is arranged on the lamp source panel and comprises a panel part and a light reflection column. The panel part is provided with a plurality of openings exposed out of the light-emitting element. The light reflection column is positioned on the panel part and physically connected with the panel part. The secondary optical element covers the lamp source panel and the light reflection support and is physically connected with the radiating block. The secondary optical element is provided with a first optical surface and a second optical surface. The first optical surface is connected with the radiating block and the second optical surface. The absolute value of slope of a tangential line of any point on the first optical surface is substantially constant. The absolute value of slope of a tangential line of any point on the second optical surface is gradually decreased towards the direction far away from the radiating block.

Description

technical field [0001] The invention relates to a light source, and in particular to a light-emitting diode light source with better light uniformity. Background technique [0002] Due to the development of light-emitting diodes (LEDs), they have been widely used in light bulbs to reduce power consumption and meet the trend of environmental protection. However, since LEDs have the light output characteristics of point light source, high brightness, and narrow beam, and their mechanical characteristics and product reliability considerations are also different from traditional lighting products. At present, countries have begun to develop relevant testing standards for the field of solid-state lighting, including road lighting, outdoor lighting, and indoor lighting. [0003] At present, there are not many LED light bulbs on the market that meet the Energy Star (Energy Star) specification. The main reason is that the light provided by the LED itself has strong directivity, tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V29/00F21V7/22F21V17/10F21Y101/02F21V29/503F21V29/74
Inventor 虞宏达
Owner AMTRAN TECH