Plant illumination area light source with high light mixing uniformity

A plant lighting and uniformity technology, which is applied in the direction of electroluminescent light source, light source, electric light source, etc., can solve the problems of unscientific design of plant growth lights, and achieve the effect of reducing the density of lights, increasing the degree of coupling, and stabilizing light output
CN110583281APending Publication Date: 2019-12-20SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2019-12-20

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Abstract

The invention discloses a plant illumination area light source with high light mixing uniformity. The plant illumination area light source comprises two parts including a cooler part with a good cooling effect and a light source module; the light source module comprises LED lamp beads, a diffuse reflection baseboard, a peripheral frame, light mixing elements and an emergence panel, wherein the light mixing elements are installed on the LED lamp beads and made of PMMA; the LED lamp beads are driven by an external dual-modulation technique driving peripheral circuit, wherein the dual-modulationtechnique driving peripheral circuit is a driving peripheral circuit combining PAM and PWM, and integrates advantages of high luminous efficiency of PAM and flexible dimming performance of PWM. On thecondition that average current is not changed, the current peak value is adjusted to make up for color temperature drift, so that a lamp outputs light with stability, accuracy and high efficiency. Existing problems are solved mainly from the view of optics, the LED plant illumination area light source which is scientific and reasonable is invented, and the invention of the lamp provides a scientific and effective solution to the plant illumination problems of plant factories.
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Description

technical field

[0001] The invention relates to the field of plant lighting light sources, in particular to a plant lighting surface light source with high light mixing uniformity. Background technique

[0002] With the rapid development of modern agriculture, land in developed areas is increasingly scarce, and traditional agriculture is declining. In order to meet the growing demand for food, it has become the general trend to follow the example of developed countries such as Japan and Germany to establish plant factories and vigorously develop vertical agriculture and modern agriculture. As a key part of plant growth, light plays an important role in the growth of plants, and LED plant light sources have emerged as the times require, but most of the LED light sources currently used in plant factories follow the optical structure of traditional LED lamps, such as The optical structure of LED spotlights, the optical structure of LED advertising lights, and simple array lamps...

Claims

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