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LED illuminance adjustment method

An adjustment method and illuminance technology, applied in the field of LED lighting, to achieve the effect of reducing working time and prolonging service life

Active Publication Date: 2013-11-27
重庆六一三智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So for low PWM "on" time is a serious problem

Method used

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Embodiment Construction

[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description...

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Abstract

The invention provides an LED illuminance adjustment method, and relates to the field of LED illumination. The LED illuminance adjustment method includes the steps that firstly, LEDs are uniformly distributed and arranged, the number of LEDs is set as N, and the needed illuminance radio in a unit area S is set as P; secondly, according to the needed illuminance radio P, the number N*P of the LEDs which are uniformly distributed is selected, and the N*P LEDs serve as a group; thirdly, according to N*P LED groups, the distribution and arrangement density of the LEDs in the unit area S is determined. The LEDs are divided into groups to be controlled, and the LED groups are uniformly distributed in space, so working time of a single LED can be reduced, and the service life of an element and device can be prolonged; the grouping method is a density grouping method, grouping of LED arrays is completed through selection of the number of the LEDs in the unit area via the method, thus constancy of overall illuminance is guaranteed because the numbers of the LEDs in the groups are the same, and because of uniform distribution of the LEDs, uniformity of overall illuminance is guaranteed .

Description

technical field [0001] The invention relates to the field of LED lighting, and in particular to a method for adjusting LED illumination. Background technique [0002] LED lighting is a new type of semiconductor lighting technology. Compared with traditional lighting technologies such as incandescent lamps, LEDs have the advantages of high luminous efficiency, long service life, good color rendering, safety and reliability. With the enhancement of people's awareness of environmental protection and the advancement of high-power LED technology, in the field of general lighting, LED devices are more and more widely used, such as: landscape lighting, traffic lights, indoor lighting, mine lighting, vehicle LED lights, etc. . [0003] In many applications, it is often necessary to adjust the illumination ratio of LEDs to meet different needs. In general, the current technology for adjusting LED illumination mainly involves two aspects: 1 constant current control (CC) and 2 pulse ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/42Y02B20/40
Inventor 程森林万东李星奎李雷
Owner 重庆六一三智能科技有限公司