Unidentified MFG - Glass-One - Optical Glass Rod. 10mm Diameter.
Glass One - Optical Glass Rod.
Rod lenses are highly polished cylinders made of optically transparent and homogeneous materials. Cut-rod cylindrical lenses are derivatives of the mother rod lens obtained by grinding off top and bottom of the rod.
Dimensions: 0.394" (10.0mm) round D x 4.468" (113.5mm) long.
Very High Quality.