Resolution Test Patterns
Line Pair & Fan

Line-group tests have proven themselves in determining the visual resolution values. According to the system being proved, these tests are obtainable in various spatial frequency ranges and in different steps.

For the testing of intensifying screens, tests are adequate whose line groups are arranged in only one direction: system errors in various directions are not to be expected, since the tests are laid directly on the cassette, directional-dependent errors of geometry do not have an effect.

For image-transmission systems in which, because of the specific imaging errors different resolution values are to be expected in the tangential and meridional direction (for example in the I.I. systems), it is advisable to use tests with line groups which lie close to one another and which are orientated perpendicular to one another.

To avoid false readings due to the so-called pseudo-sharpness, care must be taken that the recognizable number of test-group bars in the image agrees with that of the test. The besom test with its continuously varying spatial frequency represents a special form of the group test. It advantage lies, above all, in the certain avoidance of reading errors as a consequence of pseudo- sharpness.

When using a scattered radiation grid, it must be taken into account that the line-groups are arranged, if possible, at an angle to the strips of the secondary radiation grid which is less than 45°, inorder to avoid moire effects.

We have highlighted the most popular models in yellow

Type 1

Resolution Test Patterns - Type 1
Overall Dimension: 110 x 40 mm
Resolution: 0.05 LP/mm - 4.86 LP/mm
Resolution Steps: 0.05 / 1.0 / 1.11 / 1.23 / 1.37 / 1.52 / 1.69 / 1.88 / 2.09 / 2.32 / 2.58 / 2.87 / 3.19 / 3.54 / 3.93 / 4.37 / 4.86
Number of Groups: 17

Models and Ordering
Part Number Lead Thickness (mm)
1-001 0.01
1-002 0.02
1-0025 0.025
1-003 0.03
1-005 0.05
1-008 0.08
1-010
(Formerly 07-501-1000)
0.1

Type 1-83

Resolution Test Patterns - Type 1-83
Overall Dimension: 110 x 42 mm
Resolution: 0.05 LP/mm - 5 LP/mm
Resolution Steps: 0.05 / 1.0 / 1.1 / 1.25 / 1.4 / 1.55 / 1.7 / 1.9 / 2.1 / 2.3 / 2.6 / 2.9 / 3.2 / 3.6 / 4.0 / 4.5 / 5.0
Number of Groups: 17

Models and Ordering
Part Number Lead Thickness (mm)
1-83-001 0.01
1-83-002 0.02
1-83-0025 0.025
1-83-003 0.03
1-83-005 0.05
1-83-008 0.08
1-83-010 0.1

Type 16

Resolution Test Patterns - Type 16
Overall Dimension: 120 x 40 mm
Resolution: 0.05 LP/mm - 4 LP/mm
Resolution Steps: 0.5 / 0.7 / 1.0 / 1.4 / 2.0 / 2.8 / 4.0
Number of Groups: 7

Models and Ordering
Part Number Lead Thickness (mm)
16-001 0.01
16-002 0.02
16-0025 0.025
16-003 0.03
16-005 0.05
16-008 0.08
16-010 0.1

Type 17

Resolution Test Patterns - Type 17
Overall Dimension: 71 x 50 mm
Resolution: 0.177 LP/mm - 2 LP/mm
Resolution Steps: 0.177 / 0.21 / 0.25 / 0.30 / 0.35 / 0.42 / 0.5 / 0.6 / 0.71 / 0.84 / 1.0 / 2.0
Number of Groups: 12

Models and Ordering
Part Number Lead Thickness (mm)
17-001 0.01
17-002 0.02
17-0025 0.025
17-003 0.03
17-005 0.05
17-008 0.08
17-010 0.1
17-020 0.2

Type 18

Resolution Test Patterns - Type 18
Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 5 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0
Number of Groups: 21

Models and Ordering
Part Number Lead Thickness (mm)
18-001 0.01
18-002 0.02
18-0025 0.025
18-003 0.03
18-005 0.05
18-008 0.08
18-010 0.1

Type 18a

Resolution Test Patterns - Type 18a
Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 7.1 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1
Number of Groups: 24

Models and Ordering
Part Number Lead Thickness (mm)
18a-001 0.01
18a-002 0.02
18a-0025 0.025
18a-003 0.03
18a-005 0.05

Type 18b


Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 10 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 8.9 / 10.0
Number of Groups: 27

Models and Ordering
Part Number Lead Thickness (mm)
18b-001 0.01
18b-002 0.02
18b-0025 0.025
18b-003 0.03
18b-005 0.05

Type 18c


Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 16.6 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 8.9 / 10.0 / 11.1 / 12.5 / 14.3 / 16.6
Number of Groups: 31

Models and Ordering
Part Number Lead Thickness (mm)
18c-001 0.01
18c-002 0.02
18c-0025 0.025
18c-003 0.03

Type 18d


Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 20 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 8.9 / 10.0 / 11.1 / 12.5 / 14.3 / 16.6 / 20.0
Number of Groups: 32

Models and Ordering
Part Number Lead Thickness (mm)
18d-001 0.01
18d-002 0.02
18d-0025 0.025
18d-003 0.03

Type 18e

Resolution Test Patterns - Type 18e
Overall Dimension: 55 x 45 mm
Resolution: 0.5 LP/mm - 14.3 LP/mm
Resolution Steps: 0.5 / 0.56 / 0.63 / 0.71 / 0.8 / 0.9 / 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 8.9 / 10.0 / 11.1 / 12.5 / 14.3
Number of Groups: 30

Models and Ordering
Part Number Lead Thickness (mm)
18e-001 0.01
18e-002 0.02
18e-0025 0.025
18e-003 0.03

Type 70007

Resolution Test Patterns - Type 70007
Overall Dimension: 55 x 45 mm
Resolution: 1 LP/mm - 16.6 LP/mm
Resolution Steps: 1.0 / 1.12 / 1.25 / 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 8.9 / 10.0 / 11.1 / 12.5 / 14.3 / 16.6 / 20.0
Number of Groups: 26

Models and Ordering
Part Number Lead Thickness (mm)
70007-001 0.01
70007-002 0.02
70007-003 0.03

Type 70353

Resolution Test Patterns - Type 70353
Overall Dimension: 8 x 28 mm
Resolution: 5.0 LP/mm - 20.0 LP/mm
Resolution Steps: 5.0 / 6.0 / 7.0 / 8.0 / 9.0 / 10.0 / 11.0 / 12.0 / 13.0 / 14.0 / 15.0 / 16.0 / 17.0 / 18.0 / 19.0 / 20.0
Number of Groups:

Models and Ordering
Part Number Lead Thickness (mm)
70353-003 0.03

Type 70354

Resolution Test Patterns - Type 70354 - 1
Resolution Test Patterns - Type 70354 - 2
Resolution Test Patterns - Type 70354 - 3
Overall Dimension: 43 x 43 x 4 mm
Consists of 2x 70353
Resolution: 5.0 LP/mm - 20.0 LP/mm
Resolution Steps: 5.0 / 6.0 / 7.0 / 8.0 / 9.0 / 10.0 / 11.0 / 12.0 / 13.0 / 14.0 / 15.0 / 16.0 / 17.0 / 18.0 / 19.0 / 20.0
Number of Groups:

Models and Ordering
Part Number Lead Thickness (mm)
70354-003 0.03

Type 2

Resolution Test Patterns - Type 2
Overall Dimension: 50 x 55 mm
Resolution: 0.25 LP/mm - 2 LP/mm
Resolution Steps: 0.25 / 0.30 / 0.35 / 0.42 / 0.5 / 0.6 / 0.71 / 0.84 / 1.0 / 2.0
Number of Groups: 10

Models and Ordering
Part Number Lead Thickness (mm)
2-001 0.01
2-002 0.02
2-0025 0.025
2-003 0.03
2-005 0.05
2-008 0.08
2-010 0.1
2-020 0.2

Type 21

Resolution Test Patterns - Type 21
Overall Dimension: 94 x 50 mm
Resolution: 2 LP/mm - 10 LP/mm
Resolution Steps: 2.0 / 2.25 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0 / 9.0 / 10.0
Number of Groups: 16

Models and Ordering
Part Number Lead Thickness (mm)
21-001 0.01
21-002 0.02
21-0025 0.025
21-003 0.03
21-005
(Formerly 07-521)
0.05

Type 23

Resolution Test Patterns - Type 23
Overall Dimension: 155 x 50 mm
Resolution: 0.5 LP/mm - 5 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
23-001 0.01
23-002 0.02
23-0025 0.025
23-003 0.03
23-005 0.05
23-008 0.08
23-010
(Formerly 07-523-1000)
0.1

Type 25

Resolution Test Patterns - Type 25
Overall Dimension:
Resolution: 3.15 LP/mm - 16.6 LP/mm
Resolution Steps: 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 6.3 / 7.1 / 8.0 / 9.0 / 10.0 / 11.1 / 12.5 / 14.3 / 16.6
Number of Groups: 15

Models and Ordering
Part Number Lead Thickness (mm)
25-001 0.01
25-002 0.02
25-0025 0.025
25-003
(Formerly 07-525)
0.03

Type 38

Resolution Test Patterns - Type 38
Overall Dimension: 50 x 50 mm
Resolution: 0.6 LP/mm - 5 LP/mm
Resolution Steps: 0.6 / 0.7 / 0.8 / 0.9 / 1.0 / 1.2 / 1.4 / 1.6 / 1.8 / 2.0 / /2.2 / 2.5 / 2.8 / 3.1 / 3.4 / 3.7 / 4.0 / 4.3 / 4.6 / 5.0
Number of Groups: 20

Models and Ordering
Part Number Lead Thickness (mm)
38-001
(Formerly 07-527)
0.01
38-002 0.02
38-0025 0.025
38-003 0.03
38-005
(Formerly 07-535)
0.05
38-008 0.08
38-010
(Formerly 07-538)
0.1

Type 39

Resolution Test Patterns - Type 39
Overall Dimension: 60 x 30 mm
Resolution: 1.5 LP/mm - 20 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
39-001 0.01
39-002 0.02
39-0025
 
(Fluke 07-539 &
Hologic TLS-00542)
0.025
39-003 0.03

Type 41

Resolution Test Patterns - Type 41
Overall Dimension: 50 x 50 mm
Resolution: 0.6 LP/mm - 3.4 LP/mm
Resolution Steps:
Number of Groups: 30

Models and Ordering
Part Number Lead Thickness (mm)
41-001 0.01
41-002 0.02
41-0025 0.025
41-003 0.03
41-005 0.05
41-008 0.08
41-010
(Formerly 07-541-1000)
0.1

Type 42

Resolution Test Patterns - Type 42
Overall Dimension: 50 x 50 mm
Resolution: 2 LP/mm - 6 LP/mm
Resolution Steps:
Number of Groups: 28

Models and Ordering
Part Number Lead Thickness (mm)
42-001 0.01
42-002 0.02
42-0025 0.025
42-003 0.03
42-005 0.05
42-008
(Formerly 07-548)
0.08

Type 43

Resolution Test Patterns - Type 43
Overall Dimension: 50 x 50 mm
Resolution: 3.4 LP/mm - 10 LP/mm
Resolution Steps:
Number of Groups: 30

Models and Ordering
Part Number Lead Thickness (mm)
42-001 0.01
43-002 0.02
43-0025 0.025
43-003 0.03
43-005 0.05

Type 46

Resolution Test Patterns - Type 46
Overall Dimension: 50 x 50 mm
Resolution: 0.8 LP/mm - 9.5 LP/mm
Resolution Steps: 0.8 / 1.0 / 1.2 / 1.4 / 1.7 / 2.0 / 2.4 / 2.8 / 3.4 / 4.0 / 4.8 / 5.7 / 6.7 / 8.0 / 9.5
Number of Groups: 15

Models and Ordering
Part Number Lead Thickness (mm)
46-001 0.01
46-002 0.02
46-0025 0.025
46-003 0.03
46-005 0.05

Type 4a

Resolution Test Patterns - Type 4a
Overall Dimension: 50 x 50 mm
Resolution: 0.5 LP/mm - 8 LP/mm
Resolution Steps: 0.5 / 0.7 / 1.0 / 1.4 / 2.0 / 2.8 / 4.0 / 5.6 / 8.0
Number of Groups: 9

Models and Ordering
Part Number Lead Thickness (mm)
4a-001 0.01
4a-002 0.02
4a-0025 0.025
4a-003 0.03
4a-005 0.05

Type 4c

Resolution Test Patterns - Type 4c
Overall Dimension: 50 x 50 mm
Resolution: 1.4 LP/mm - 8 LP/mm
Resolution Steps: 1.4 / 1.6 / 1.8 / 2.0 / 2.24 / 2.5 / 2.8 / 3.15 / 3.55 / 4.0 / 4.5 / 5.0 / 5.6 / 6.3 / 7.1 / 8.0
Number of Groups: 16

Models and Ordering
Part Number Lead Thickness (mm)
4c-001 0.01
4c-002 0.02
4c-0025 0.025
4c-003 0.03
4c-005 0.05

Type 6

Resolution Test Patterns - Type 6
Overall Dimension:
Resolution: 3 LP/mm - 4 LP/mm
Resolution Steps: 3.0 / 3.2 / 3.4 / 3.6 / 3.8 / 4.0
Number of Groups: 6

Models and Ordering
Part Number Lead Thickness (mm)
6-001 0.01
6-002 0.02
6-0025 0.025
6-003 0.03
6-005 0.05
6-008 0.08
6-010 0.1

Type 73-NRT

Resolution Test Patterns - Type 73-NRT
Overall Dimension: 12 x 24 mm
Resolution:
Resolution Steps: 2.0 / 3.0 / 4.0 / 5.5 / 7.0 / 8.5 / 10.0 / 11.1 / 12.5 / 14.3 / 16.6 / 20.0 LP/mm.
Number of Groups: 12

Models and Ordering
Part Number Lead Thickness (mm)
73-NRT

Type 81

Resolution Test Patterns - Type 81
Overall Dimension: 65 x 55 mm
Resolution: 0.6 LP/mm - 10 LP/mm
Resolution Steps:
Number of Groups: 26

Models and Ordering
Part Number Lead Thickness (mm)
81-001 0.01
81-002 0.02
81-0025 0.025
81-003 0.03
81-005
(Formerly 07-526)
0.05

Type 82

Resolution Test Patterns - Type 82
Overall Dimension: 80 x 40 mm
Resolution: 1.5 LP/mm - 10 LP/mm
Resolution Steps:
Number of Groups: 0

Models and Ordering
Part Number Lead Thickness (mm)
82-001 0.01
82-002 0.02
82-0025 0.025
82-003 0.03
82-005
(Formerly 07-515)
0.05

Type 84

Resolution Test Patterns - Type 84
Overall Dimension:
Resolution: 0.6 LP/mm - 5 LP/mm
Resolution Steps: 0.6 / 0.7 / 0.85 / 1.0 / 1.2 / 1.4 / 1.7 / 2.0 / 2.3 / 2.6 / 3.0 / 3.4 / 3.8 / 4.2 / 4.6 / 5.0
Number of Groups: 16

Models and Ordering
Part Number Lead Thickness (mm)
84-001 0.01
84-002 0.02
84-0025 0.025
84-003 0.03
84-005 0.05
84-008 0.08
84-010 0.10
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