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Ronchi ruling

A Ronchi ruling or Ronchi grating, named after the Italian physicist Vasco Ronchi, is a constant-interval bar and space square wave optical target that has a high edge definition and contrast ratio. Ronchi rulings are commonly manufactured through photolithographic deposition of chrome on glass or optical substrates. Ronchi rulings are used for optical testing purposes, e.g., the Ronchi test and as scales for a linear encoder.

Chrome deposited on B270 Glass 50mm x 50mm - 1.5mm thick Ruled over full area Line width / Space width = 0.250mm +/- 0.003mm. Overall error over 50mm = 0.010mm Glass size 50mm x 1.5mm all +/- 0.2mm.


Code Title Style Pack Size Availability Price Updated: 02-08-2021
S21B01293 Ronchi ruling R28 (200 per mm) each 4 weeks AU $582.00
S21B01270 Ronchi ruling R12 (2 per mm) each 4 weeks AU $449.00
S21B01271 Ronchi ruling R15 (8 per mm) each 4 weeks AU $449.00
S21B01272 Ronchi ruling R16 (20 per mm) each 4 weeks AU $449.00
S21B01273 Ronchi ruling R17 (40 per mm) each 4 weeks AU $449.00
S21B01290 Ronchi ruling R25 (50 per mm) each 4 weeks AU $579.00
S21B01291 Ronchi ruling R26 (100 per mm) each 4 weeks AU $579.00
S21B01292 Ronchi ruling R27 (125 per mm) each 4 weeks AU $579.00
Code Title Style Pack Size Availability Price
S21B01293 Ronchi ruling R28 (200 per mm) each 4 weeks AU $582.00
S21B01270 Ronchi ruling R12 (2 per mm) each 4 weeks AU $449.00
S21B01271 Ronchi ruling R15 (8 per mm) each 4 weeks AU $449.00
S21B01272 Ronchi ruling R16 (20 per mm) each 4 weeks AU $449.00
S21B01273 Ronchi ruling R17 (40 per mm) each 4 weeks AU $449.00
S21B01290 Ronchi ruling R25 (50 per mm) each 4 weeks AU $579.00
S21B01291 Ronchi ruling R26 (100 per mm) each 4 weeks AU $579.00
S21B01292 Ronchi ruling R27 (125 per mm) each 4 weeks AU $579.00