Material
Glass  -  selected float glass
Max. length  -  3500 mm
Proccessing  -  Scribed and broken
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)
Graduations parallelism to glass edge  -   < 0.1 mm per 1 m
Shape of graduation line  -  rectangular
Max. available length of graduation line  -  15 mm

 

Pattern Structure

Incremental track;
Incremental track with fixed or variable pitch and track with reference mark;
Incremental and absolute tracks.