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LED lamp used for plant illumination
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A technology of LED lights and plant lighting, applied in the fields of botanical equipment and methods, greenhouse cultivation, horticulture, etc., can solve problems such as abnormal plant morphology
Inactive Publication Date: 2016-03-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Embodiment 1
[0046] Weigh 0.5g of fluorescent powder and 0.5g of powder mixing glue and mix them evenly, vacuumize to remove air bubbles to obtain phosphor powder slurry;
[0047] Apply the phosphor powder paste on the surface of the LED chip by the dispensing method, and heat (150°C) in a drying oven for 2 hours to form a phosphor layer;
[0048] Cover the above LED chip with a lens cap, pottingsilica gel, and then heat (150°C) in a drying oven to cure for 4 hours;
[0049] The measured ratio of red light (600-700nm) to far-red light (700-800nm) in the spectral components (R / FR, the ratio of light quantum flux density) is 5:1, and all the blue light emitted by the chip is converted into red light ;
[0050] Finally, one or more LEDs are used to assemble an LED lamp.
Embodiment 2
[0052] Weigh 0.3g of fluorescent powder and 1.5g of powder mixing glue and mix them evenly, vacuumize to remove air bubbles to obtain phosphor powder slurry;
[0053] Apply the phosphor powder paste on the surface of the LED chip by the dispensing method, and heat (150°C) in a drying oven for 2 hours to form a phosphor layer;
[0054] Cover the above LED chip with a lens cap, pottingsilica gel, and then heat (150°C) in a drying oven to cure for 4 hours;
[0055] The ratio of red light (600-700nm) to far-red light (700-800nm) in the measured spectral components (R / FR, the ratio of light quantum flux density): 2.9:1, all the blue light emitted by the chip is converted into red light ;
[0056] Finally, one or more LEDs are used to assemble an LED lamp.
Embodiment 3
[0058] Weigh 0.3g of phosphor powder and 2.4g of powder compounding glue and mix them evenly, vacuumize to remove air bubbles to obtain phosphor powder slurry;
[0059] Apply the phosphor powder paste on the surface of the LED chip by the dispensing method, and heat (150°C) in a drying oven for 2 hours to form a phosphor layer;
[0060] Cover the above LED chip with a lens cap, pottingsilica gel, and then heat (150°C) in a drying oven to cure for 4 hours;
[0061] The measured ratio of red light (600-700nm) to far-red light (700-800nm) in the spectral components (R / FR, the ratio of light quantum flux density) is 3.3::1, and the ratio of red light and blue light in the spectral components (R / B ratio) 30.5:1;
[0062] Finally, one or more LEDs are used to assemble an LED lamp.
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Abstract
The invention discloses a method of LED used for red lightplant, which realizes red light. The method comprises the following steps of firstly, mixing red phosphor and colloid to form uniform powderslurry; applying the powderslurry to a structure assembled with blue light and ultraviolet LED chips and realizing a pc-LEDs device possessing red light output. In the invention, the method of realizing the red light is acquired, through changing components and a proportion of the red phosphor, red light intensity, a spectrum (chroma) and a proportion of red and blue light are changed. The technology possesses a good application value on aspects of decoration, plant illumination and the like.
Description
technical field [0001] The invention belongs to the field of optoelectronic technology, and in particular relates to a coating technology for LED lamps used for plant lighting. Background technique [0002] Light quality or spectral distribution also has an important impact on plant photosynthesis and morphogenesis. Plants on the earth have undergone natural selection for hundreds of millions of years to continuously adapt to solar radiation, and they have the characteristics of photoselective systems due to different species. The part with a wavelength of 400-700nm is the energy range that plants mainly absorb and utilize in photosynthesis, which is called photosynthetically active radiation; the part with a wavelength of 700-760nm is called far-red light, which plays a certain role in the formation of photomorphology in plants. [0003] Different spectral components have different effects on plants. Under strong light conditions, blue light can promote the synthesis of chl...
Claims
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Application Information
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