Optical device for plant illumination and plant cultivation device comprising the optical device

Abstract

The invention relates to the technical field of plant lighting, and specifically provides an optical device for plant lighting, which is arranged at a preset position above the centerline of a planting area; includes an LED lamp and a lens, and the lens covers the light-emitting surface of the LED lamp; the lens The lens has a symmetrical structure; the side of the lens facing the LED lamp is concave, and the curvature is consistent; the center part of the side facing away from the LED lamp is concave inward; from the center part to one end, it includes successively adjacent first sections (22) , the second section (23), and the third section (24); wherein, from the center to one end, the curvature of the first section (22) gradually increases, and the curvature of the second section (23) decreases first and then increases, The curvature of the third segment (24) decreases gradually. The optical device for plant lighting provided by the present invention can recycle the light beyond the planting area to the planting area, and supplement the light on both sides of the light center line, avoid the phenomenon of light waste, improve the energy utilization rate, and improve the efficiency of the planting area. The uniformity of light, thereby improving the planting quality of the planting area.

Description

technical field [0001] The invention relates to the technical field of plant lighting, in particular to an optical device for plant lighting and a plant cultivation device comprising the optical device. Background technique [0002] At present, in the field of agriculture, economic benefits are improved through intensive planting, for example, making full use of space to increase the area that can be planted. The light source for plant lighting is one of the bottlenecks of intensive planting. [0003] The light source used in the optical device for plant lighting is generally a thermal light source, such as a high-pressure sodium lamp. The thermal light source has serious infrared radiation and high calorific value, which not only consumes more energy, but also can only be installed far above the plants in order to avoid the impact of the high temperature generated by the lamp on the plants, resulting in low space utilization. [0004] In addition, in the existing optical ...

AI Technical Summary

Problems solved by technology

The thermal light source has serious infrared radiation and high calorific value, which not only consumes more energy, but also can only be installed far above the plants in order to avoid the impact of the high temperature generated by the lamp on the plants, resulting in low space utilization

[0004] In addition, the existing optical devices for plant lighting, whether using high-pressure sodium lamps or other thermal light sources, have a center light intensity that is stronger than the light intensity on both sides, and the light intensity distribution is uneven, which affects the quality of plants.

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