Red and blue light power-adjustable light combination laser plant light source

Abstract

The invention provides a red and blue light power-adjustable light combination laser plant light source. Blue light emitted by a blue light semiconductor laser unit and red light emitted by a red light semiconductor laser unit are combined into a beam of red and blue mixed light through a light combination plate in a basket body with a light emergent port, and the mixed light is emitted out from the light emergent port of the basket body. A 90-degree included angle is formed by the light emergent axes of the blue light semiconductor laser unit and the red light semiconductor laser unit. The included angles formed between the light combination plate and the light emergent axes of the two semiconductor laser units are both 45 degrees, and a laser speckle is located in the center of the lightcombination plate. The light combination plate is supported at the bottom surface of the basket body through a cushion block, and the light combination plate and the cushion block are fixed through cohesive glue. The red and blue light power-adjustable light combination laser plant light source has the advantages that the light combination laser plant light source is good in red and blue light monochromaticity and high in photoelectric conservation efficiency and facilitates proportional regulation of red and blue power. The laser light sources with red and blue mixed light with different powers are applied to different growing periods of different plants, plant growth can be promoted to the maximum extent, and the quality of the plants can be improved. The red and blue light power-adjustable light combination laser plant light source is simple in process, easy to implement, low in cost, free of pollution and suitable for industrial application and popularization.

Description

technical field [0001] The invention relates to the fields of laser, photoelectron luminescence and lighting technology, in particular to a synthetic laser plant light source with adjustable red and blue light power. Background technique [0002] Photosynthesis is one of the main processes in plant growth. Among the red, orange, yellow, green, blue, blue, purple and other components contained in sunlight, red light and blue light are the most effective for photosynthesis of green plants. Red light (wavelength 600-700 nanometers) and blue light (wavelength 400-500 nanometers) are most absorbed by green plants. Red light is helpful for flowering and prolonging the flowering period, making plants grow taller. And blue light can promote the growth of green leaves, promote the accumulation of protein and non-carbohydrates, and make plants gain weight. It is currently recognized that the blue light near 440nm and the red light near 660nm have the most significant effect on plant...

AI Technical Summary

Problems solved by technology

Since the heat dissipation problem of high-power LEDs has not been well resolved, a large number of low-power LED lamp bead light sources need to be connected in series to irradiate plants at close range. The reliability of the circuit design is poor, and the use of LED plant light sources is limited.

Images