2-Pack Fresnel Lens Diameter 120mm(4.72") Focal Length 220mm(8.66") Acrylic Lens (not Glass) for Solar Heating Experiment,Solar Concentrator,fire Cooking,Visual Education
2-Pack Fresnel Lens Diameter 120mm(4.72") Focal Length 220mm(8.66") Acrylic Lens (not Glass) for Solar Heating Experiment,Solar Concentrator,fire Cooking,Visual Education
Size: Φ120mm Focal length: 220mm Thickness: 2mm Material: PMMA Groove pitch: 0.5mm Transmission (%): 92 (from 400-1100nm) Index of Refraction nd : 1.491 Operating Temperature (°C): 80 (Maximum)
Product Features
- 2PCS/Unit large fresnel lenses
- Size:120mm, Focal length:220mm, Thickness:2mm, Material: PMMA (Acrylic)
- Visual Aid for education - Great for solar heating experiment, DIY Solar Cooking, DIY Solar Heater, For Scientific Research
- High light transmittance, High efficiency in focusing, High precision.
- We are professional factory for high-precision optical lens, fresnel lens, solar lenes.