Fresnel Lens Magnifier, Diameter 100mm (4''), Focal Length 50mm, Acrylic Ultrathin Lens for Physics Classroom,Solar Heating,Magnifiying. (Focal Length 50mm) sold2025 Specification: Diameter of the plastic

Specification: Diameter of the plastic part: Outside diameter is about 6mm/0

PEI is excellent because it can withstand the numerous heat cycles that a 3D print bed goes through from print to print

electroplated diamond head

318 H x 10

Hot drop galvanized steel make it strong and tough

Fresnel Lens Magnifier, Diameter 100mm (4''), Focal Length 50mm, Acrylic Ultrathin Lens for Physics Classroom,Solar Heating,Magnifiying. (Focal Length 50mm) sold2025 Specification: Diameter of the plasticFresnel Lens Magnifier, Diameter 100mm (4''), Focal Length 50mm, Acrylic Ultrathin Lens for Physics Classroom,Solar Heating,Magnifiying. (Focal Length 50mm) Size: 100mm Thickness: 2mm Material: PMMA (acrylic) Groove pitch: 0. 5mm Transmission (%): 92 (from 400 1100nm) Index of Refraction nd : 1. 491 Operating Temperature (C): 80 (Maximum) Product Features 1 Pack Round Fresnel Lens Magnifier Size: 100mm, Thickness: 2mm, Material: PMMA (Acrylic) High