It is said that LED plant lamps are highly efficient and energy-saving plant growth lamps. Part of the reason is that LED lamps have a much higher electro-optical conversion efficiency than traditional lamps such as incandescent lamps and sodium lamps. It is also because LEDs can customize their spectrum, but for maximum efficiency, use LED plant lamps. , What other measures can be taken?
(1) Distribution of LED plant lights
LED plant lights are used to illuminate plant lights. Of course, the purpose of plant growth is to achieve the ideal state of light users. Crop growers hope that their crops can grow lush and balanced, and the uniform distribution of LED plant lights is also positive. It is to ensure that the light energy is evenly irradiated on the unit area.
Considering the distribution of lamp beads, the main problem is that a single evenly distributed LED plant lamp has a large irradiation area, and its lamp beads are mainly composed of red and blue lamp beads. If the positions of the lamp beads of different spectrums are not reasonably distributed, it will definitely lead to The difference in the growth status of plants in multiple areas within the illumination range of the LED plant light is the meaning of using the LED plant light.
How to control the distribution of lamp beads in LED plant lights? First determine the number of LED plant lights (such as: 8x12=96), and then determine the ratio of light beads according to the needs of planting (such as: water spinach planting: red: blue=7:1=84:12), because the lamps are Cuboid, 12 blue lamp beads can be arranged in length 4 and width 3, because the width direction of the lamp accommodates 8 lamp beads, each row of 3 lamp beads evenly distributed in the middle of the six is ideal, there are 12 lamp beads 4 blue The lamp beads can be distributed in 1-2-1 rows and four columns, and the lamp beads in the width and low directions are dislocated, so that the main purpose of the designer is: if it is a small area to fill in the light, it can ensure uniform illumination in the middle and no plants around. If it is a large area fill light, the surrounding light is relatively weak, but the light of adjacent lamps overlaps, just can achieve the expected effect.
The distribution of LED plant lights is intuitively important. Just imagine, if 12 blue light beads are arranged in one row and 84 red light beads are arranged in seven rows, you can imagine what kind of not only effect it will be!
(2) Use of physical optical equipment
The physical principles used by LED plant lights in enhancing illumination and adjusting the uniformity of illumination are mainly light reflection and light refraction.
The LED plant light uses the reflection of light to increase the illumination and uniformity of light. It mainly uses the reflector and the metal substrate used by the COB. The principle of the reflector of the LED plant light is the same as the flashlight we have used. It reflects the light emitted by the light source into a beam of light. Increase the local light intensity, the difference is that the angle of the reflector of the LED plant light will be larger than the reflector of the flashlight, and the multiplier is designed through precise calculations to ensure the intensity and uniformity of the illumination within the illumination range.
The reflective effect of the metal substrate is also to maximize the light energy emitted by the LED plant lamp beads to be used by plants, and the main reflected part is the auxiliary light, not the main beam. Of course, its function is not only to reflect light, but also to fix the lamp beads and heat dissipation.
LED plant lights use the principle of light refraction to increase illumination and uniformity of illumination. The main use of optical lenses is to change the trajectory of light. The principle is to use light to travel from gas to solid, and then back to the gas through the solid, and the direction will change. , Generally use single lens and retest lens, which can control the light distribution very accurately.
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