Plant illumination area light source with high light mixing uniformity

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.

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...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art. In order to solve the problem of unscientific design of existing plant growth lamps, a plant lighting surface light source with high light mixing uniformity is disclosed. Solve the deficiencies of the existing technology in three aspects: the uniformity of mixed light of colored light, the improvement of the light output efficiency of the plant growth lamp, and the improvement of the heat dissipation effect

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