Fresnel Lens 150x150mm, Focal Length 140mm, Acrylic Lens (not Glass), for Solar Heating, Magnifiying, Optics/Visual Education sold2025 6''(83 x 83 x 93

6''(83 x 83 x 93 mm) Item Weight: 8

Increased depth of field and reduced glare

so that you can complete it in time

Front mounting style

customize alarms and timers

Fresnel Lens 150x150mm, Focal Length 140mm, Acrylic Lens (not Glass), for Solar Heating, Magnifiying, Optics/Visual Education sold2025 6''(83 x 83 x 93Fresnel Lens 150x150mm, Focal Length 140mm, Acrylic Lens (not Glass), for Solar Heating, Magnifiying, Optics Visual Education Size: 150x150mm, Focal length 140mm, 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 Square Fresnel Lens Magnifier 150x150mm, Focal length 140mm, Thickness: 2mm, Material: PMMA