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Adjustable full spectrum LED (light-emitting diode) light source device for plant growth

A light source device and plant growth technology, applied in the field of semiconductor solid-state lighting sources, can solve the problems of not taking into account the needs of plant spectral bands and light characteristic adjustment at different growth stages, so as to shorten the cultivation and harvest cycle, accelerate plant growth, and comprehensively The effect of light nutrition

Inactive Publication Date: 2012-08-15
TONGFANG OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the LED light sources in the prior art has taken care of the needs of the above-mentioned plants in spectral bands, different growth stages, and adjustments to various light characteristics.

Method used

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  • Adjustable full spectrum LED (light-emitting diode) light source device for plant growth
  • Adjustable full spectrum LED (light-emitting diode) light source device for plant growth
  • Adjustable full spectrum LED (light-emitting diode) light source device for plant growth

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Example III, choose to cultivate radish seedlings in a growing period, and give the current intensity of UV-B, UV-A, Blu-ray, green, yellow, red, and far red lights used by the above -ave emitting unit.10, 20, 40, 10, 20, 150, 10mA, and frequency of 250Hz, the duty cycle is 20%, 25%, 50%, 20%, 10%, 100%, 50%of PWM power supply modes to driveEssenceFurther, according to the characteristics of the beam angle of various LEDs and the spacing of wheat plants, the installation height of the emitting body is determined to ensure that the UV-B, UV-A, blue light, green light, red light, red, red, red, red light, red light, red light, red light, red light, red light, red light, red light, red light, red light, and redThe flux strength of light and far red photons is 2, 5, 20, 2, 2, 150, 5, respectively μ mol M -2 S -1 EssenceIn addition, the light cycles of various LED light sources are set for light from 6: 00 ~ 18:00 per day.

Embodiment 2

[0028] The above is only the examples of the presentation of the present invention.For the technical personnel in the art, in accordance with the technical routes of the present invention, there are no substantial changes in the specific implementation methods and application scope.The technical solution formed also belongs to the protection scope of the present invention.

Embodiment 3

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Abstract

The invention discloses an adjustable full spectrum LED (light-emitting diode) light source device for the plant growth, and relates to a semiconductor solid state lighting source. A power supply of the invention supplies power for a control system and a drive circuit, and is controlled by the control system; the control system provides intelligent control for data input, data output, operation processing, storage and clock, provides data for light adjusting for the drive circuit, and input the basis data for adjusting the spectral power distribution of the light source, the photon flux intensity and the photoperiod from exterior into a storage inside the control system; the drive circuit provides steady direct current or pulse width modulation power supply for an illuminant; the basic unit of the illuminant is composed of a plurality of UV (ultraviolet) -B, UV-A, blue light, green light, yellow light, red light and far-red light LEDs. The adjustable full spectrum LED light source device has the full spectrum lighting condition required by the plant growth, also the spectral power distribution, the photon flux intensity and the photoperiod can be adjusted according to different requirements on light source of different plants in different growth phases, so that the best lighting condition is provided for the plant growth.

Description

Technical field [0001] The present invention involves semiconductor solid lighting light sources, especially for the LED full -spectrum of plant growth. Background technique [0002] The artificial light source for plant growth has been widely used in the cultivation of crops such as vegetables, fruits, flowers and other crops in greenhouses.These artificial light sources can be used separately without sunlight conditions, or as supplementary light under the condition of insufficient sunlight to help plants grow normally.Common artificial light sources include incandescent lamps, fluorescent lamps, high -pressure sodium lamps or mercury lamps.However, the spectral power distribution of these traditional plant growth light sources is fixed, the adjustable range of the optical flux strength is small, and it cannot be matched with the ideal light source conditions required by plant growth, not to mention the demand for different plants in different growth stages also exist in the li...

Claims

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Application Information

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IPC IPC(8): A01G7/06F21V23/06F21V29/02F21V31/03F21V33/00F21V19/00H05B37/02F21Y101/02F21V29/67F21Y115/10
Inventor 马亮
Owner TONGFANG OPTO ELECTRONICS
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