Plant illuminating device and LED proportioning method of plant growing spectrum

Abstract

The invention relates to the technical field of plant illumination, in particular to a plant illuminating device and an LED proportioning method of plant growing spectrum. The plant illuminating device comprises a shell, a driving power supply and an LED light source are arranged in the shell, the driving power supply is connected with the LED light source, the LED light source comprises a plurality of sets of LED lighting modules, and each set of LED lighting module comprises white light LEDs, blue light LEDs and red light LEDs at the number ratio of 5-9:1-4:1-5. The white light LEDs, the blue light LEDs and the red light LEDs in the light source are proportioned proportionally, light emitted by the LEDs is beneficial to growth of plants and manual illumination work, light utilization efficiency can reach 90%, energy is saved, environment is protected, and the plant illuminating device is low in production cost, long in service life and applicable to wide popularization and use.

Description

technical field [0001] The invention relates to the technical field of plant lighting, in particular to a plant lighting device and an LED matching method for plant growth spectrum. Background technique [0002] Light is an important energy source for plant growth, and plants use light for photosynthesis to promote growth. Indoor plant cultivation and greenhouse vegetable production are all equipped with plant lighting devices, which are used to provide lighting sources for plants to promote rapid plant growth in rainy days or nights when the sun is insufficient or cannot receive sunlight. [0003] Traditional plant lighting devices use high-pressure sodium lamps, fluorescent lamps, metal halide lamps, incandescent lamps, etc. These light sources consume a lot of energy, have a short service life, and are expensive. Experimental research has proved that plant growth requires light sources of specific wavelengths. For example, chlorophyll of plants needs specific light with ...

AI Technical Summary

Problems solved by technology

When the red, blue, and green light-emitting modules emit light at the same time, they can be used for plant growth light and work lighting light. The relative energy distribution curve of the spectrum can be found in Figure 4 , it can be seen that due to the light mixing effect of the red, blue and green lights, the brightness of the light is improved, but the light source at this time contains the spectrum of the green wavelength (500nm-580nm) with a relatively high spectral relative energy index, such as Figure 4 In the area indicated by the middle hatching, the spectrum of the green light wavelength cannot be absorbed and utilized by plants, so its light efficiency utilization rate is low, which can only reach 60%-70%. It is convenient, and it is not suitable for long-term irradiation of plants, and because the working voltage of red LED is about 2.2V, which is lower than that of blue LED, the red LED is impacted by a higher working voltage, which will shorten its service life. As a result, the service life of the dimmable tinted lighting is not long

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