Glass linear scale

for linear encoders

Material Glass - Selected float glass Max. length - 3400 mm Proccessing - Scribed and broken, laser cutting Outbreaks on edges - < 0.1 mm, edges linearity 0.1 m/mm Grinded - Edges linearity 0.05 mm/m Polished - Edges linearity 0.05 mm/m Pattern On glass - Sputtered chrome Graduation line's width max. tolerance - ±5% Graduation accuracy - ±1;±2;±3 μm (L<1 m); 2;±3 (L<3.4 m); ±5 Graduations parallelism to glass edge - 400 mm - rectangular, if L < 400 mm - any customer desired shape. Max. available length of graduation line - 15 mm Coating - Aluminium, silicon oxide, chrome, antireflection chrome... Pattern Structure Incremental track; Incremental track with fixed or variable pitch and track with reference mark; Incremental and absolute tracks + reference mark and aphodisation.