Optically Worked Double Concave Glass Lens, 75mm Diameter, 100mm Focal Length Subcategory_Rubber Tubing 5 inches each supports crafting

5 inches each supports crafting projects

the optically worked beveled edges widening the visible lateral shift in refraction-angle demos

and corona discharge

Eisco Labs borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C

fluid reservoir

Optically Worked Double Concave Glass Lens, 75mm Diameter, 100mm Focal Length Subcategory_Rubber Tubing 5 inches each supports craftingDesigned for strong divergence demos, a 75mm aperture double concave glass lens at 100mm focal length spreads light through optically worked surfaces and ground polished edges.