Although solar photovoltaic modules have been rigorously tested during the production process, they are inevitably damaged during transportation, installation and operation. For example, solar panels are cracked or broken. If they are not replaced in time, system efficiency will be greatly reduced. , or even cause the system to fail. The current monitoring methods mainly include the thermal imaging photographic technique and the (electro) field excitation luminescence detection technology, but each has a large application restriction condition. The thermal imaging photographic technique can only be used in sunlight with an optical energy density of more than 700 W/m2. Used under conditions, and field-excited luminescence detection technology can only be used under night-light conditions. The Institute of Photovoltaic Technology, University of Stuttgart, Germany, has collaborated with companies to develop a new monitoring technology, codenamed "DaySy," which enables the real-time monitoring of solar photovoltaic devices by measuring the intensity of field excitation and photoexcitation of solar photovoltaic modules. In the working state, the monitoring results can be obtained within 30 seconds to determine whether the solar PV modules are in good condition and determine the common types of failures, such as the disconnection of the wires between the solar panels, the occurrence of micro-cracks on the board, and the photoelectric conversion failure of the panels. The parts, etc., have a wide range of application prospects.
Aspheric lenses can increase the numerical aperture of a lens while minimizing system aberrations. Aspheric lenses may also reduce the number of elements needed in a multi-element system. Aspheric lenses can reduce overall system weight while providing advantages such as increasing throughput or simplifying assembly.
Convex Aspheric elements are used to reduce aberrations, aspheric lens is ideal for light collection, projection, illumination, detection, and condensing applications.
China Star Optics has strong and comprehensive technical capability, manufactured various aspherical products,including infrared material ZnSe,Ge,Si,ZnS etc.has already application in various high technology project and products.
Aspheric Lens
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