Fresnel lens is a special type of lens that reduces the thickness of the lens by continuously cutting circular grooves on the surface of the lens, thereby achieving the functions of refraction and focusing. It can concentrate light into a relatively small area, increasing the intensity of light.
A solar panel is a device composed of multiple solar cell units that can convert light energy into electricity. Due to the small size and area of the battery unit, its absorption of sunlight is limited. Therefore, it is necessary to use lenses and other equipment to focus the sunlight onto the surface of the battery panel.
2、 Advantages
Compared to other focusing devices, Fresnel lenses have the following advantages:
①.Lighter and thinner: Due to the groove shape on the surface of the lens, the thickness of the lens can be reduced, making the Fresnel lens lighter and thinner compared to ordinary lenses.
②. High transmittance: Due to the design of the groove shape, Fresnel lenses can better reflect and refract light, increasing light intensity. At the same time, the mirror reflectivity of the lens surface is also high, which can effectively reduce light loss.
③. Lower cost: Compared to traditional lenses, Fresnel lenses use fewer materials and have relatively lower processing costs.
3、 Application prospects
The concept of Fresnel lens focused solar panels has been applied to practical solar panel production and research fields. Its application prospects mainly include:
①. Increase the efficiency of light energy conversion: By focusing light with a Fresnel lens, the efficiency of light energy conversion can be improved while ensuring that the area of the solar panel remains unchanged, thereby increasing the power generation of the solar panel.
②. Suitable for large-scale applications: Fresnel lenses can be produced and applied on a large scale, thus having a wider range of application prospects.
③. Reduce footprint: By using Fresnel lens focused solar panels, the footprint of solar panels can be reduced, which will be of great significance for building large-scale solar power plants.
