R28 Ronchi Ruling 200 Lines/mm

Typically used for testing of resolution, field distortion and parfocal stability, but may be paired to provide interference patterns (fringe patterns) and as light gates.

 

Glass Type and Thickness
Sodalime 1.5mm thick

Dimensions
76mm x 25mm

Mount
Black Anodised Aluminium Slide (76mm x 25mm x 1.5mm)

Method
Low reflective chrome on glass

Line Thickness
0.0025mm ± 0.0005mm