| ID |
Pattern Name |
Location |
Description |
| A* |
Concentric Circles |
X =2;
Y = 10 |
1, 2, 3, 4, 5mm Circles with Cross Line & circle identifier. Line width 20µm
|
| B* |
Concentric Squares |
X=10;
Y=10 |
1, 2, 3, 4, 5mm Squares with Cross Line & circle identifier. Line width 20 nm |
| C* |
Line Grating |
X=18;
Y=10 |
12.5 Line Pairs permm (40µm line 40µm space) |
| D* |
Line Grating |
X=26;
Y=10 |
50 Line Pairs permm (10µm line 10µm space) |
| E* |
Half Protractor |
X=34;
Y=10 |
15 Spacing, Line width 20µm |
| F* |
Grid Array Coarse |
X=40;
Y=10 |
5mm square array with 0.5mm divisions and central 2mm square with 0.25mm divisions. Line width 20µm |
| G* |
Grid Array Fine |
X=48;
Y=10 |
5mm square array with 0.1mm divisions and central 2mm square with 0.05mm divisions. Line width 8µm divisions and central 2mm square with 0.05mm divisions. Line width 8µm |
| H* |
Dot Array |
X=56;
Y=10 |
Dot diameter 0.25mm, dot centre to centre spacing 0.050mm – 11x11 grid = 121 dots to centre spacing 0.050mm – 11x11 grid = 121 dots |
| I* |
Geometric progression of Opaque Dots |
X=2;
Y=4 |
Line array of dots or square shapes, of either clear or opaque. Reducing in size in a Root 2 progression for the purposes of edge threshold detection to enable an image analyzer to measure the size correctly, or general shape size comparison. |
| J* |
Geometric |
X=17;
Y=4 |
Root 2 progression of 21 dots or square shapes, from 3.5µm to 3.5µm. |
| K* |
Geometric progression of Clear Dots |
X=32;
Y=4 |
Nominal size in mm
Dot/square size – Large to small inmm 3.5833; 2.5338; 1.7917; 1.2669; 0.8959; 0.6335; 0.4479; 0.3167; 0.2240; 0.1584; 0.1120; 0.0792; 0.0560; 0.0396; 0.0280; 0.0198; 0.0140; 0.0099; 0.0070; 0.0049; 0.0035 |
| L* |
Geometric progression of Clear Squares |
X=47;
Y=4 |
| M* |
Vertical Scale Fine Variable |
X=63 |
Overall Scale length 10mm.
5mm in 0.5mm divisions. Line width 20µm
4mm in 0.1mm divisions. Line width 10µm
1mm in 0.01mm divisions. Line width 3 µm |
| N* |
Horizontal |
X=0;
Y=0 |
Scale length 62mm in 2mm
Scale Coarse divisions, subdivided in 1mm divisions with a 20µm line width. |