Technical information Focal Length (mm) = 24 Size (mm) : ?63 Groove Pitch (mm) :0.26 Thickness (mm) : 1.4 Material : PMMA Type : LED LED type Fresnel lens such as magnifiers, lighting equipment, 3D display is being used in a variety of areas. Groove(Prism) on the opposite side condensing (A flat surface condensing) Also we design to use more 3mm Optical PMMA for loner life time and to have 0.5 ~ 1.0mm groove pitch for higher solar concentration.
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