Omron V440-F, User Manual

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2-5
2 Quick Start
V440-F C-Mount Code Reader User Manual
2
-2 Pos
ition
th
e Read
er and
Set
Up Opt
ics
2
2
-2-1
Determining the Optical Setup
Step 4: Based on ideal field of view, use the Field of View / Working Distance charts below to choose the
best lens and camera standoff distance combination that most closely matches the application requirements.
Example:
Read a 2D, 7.5 mil code.
From the guidelines we can determine that 3.5 PPE is a good starting point.
From the PPE to FOV table above, we see the ideal field of view for achieving a PPE of 3.5 on a 7.5 mil code is
133.8 mm .
From the table below, we see there are multiple lens options and working distance options that come close * .
• Option 1: F = 9 mm, Working Distance = 150.
• Option 2: F = 12.5 mm, Working Distance = 200.
• Option 3: F = 16 mm, Working Distance = 250.
*Note: Please note that it normal to interpolate between the set working distances in the chart to come up with
the best answer. ALWAYS TEST the solution on your exact samples. You can always move the camera in to
increase the resolution.
Field of View for 25* to 500 mm Working Distance
Field of View at 600 to 2500 mm Working Distance
Important: See Connect the System .
Field of View (mm x mm) at Specific Working Distances (mm)
Lens FL 25 50 75 100 150 200 250 300 350 400 450 500
F = 6 35 x 30 71 x 59 106 x 89 142 x 118 213 x 177 283 x 236 354 x 296 425 x 355 496 x 414 567 x 473 638 x 532 708 x 591
F = 8 27 x 22 53 x 44 80 x 66 106 x 89 159 x 133 213 x 177 266 x 222 319 x 266 372 x 310 425 x 355 478 x 399 531 x 443
F = 9 24 x 20 47 x 39 71 x 59 94 x 79 142 x 118 189 x 158 236 x 197 283 x 236 331 x 276 378 x 315 425 x 355 472 x 394
F = 12.5 17 x 14 34 x 28 51 x 43 68 x 57 102 x 85 136 x 113 170 x 142 204 x 170 238 x 199 272 x 227 306 x 255 340 x 284
F = 16 13 x 11 27 x 22 40 x 33 53 x 44 80 x 66 106 x 89 133 x 111 159 x 133 186 x 155 213 x 177 239 x 199 266 x 222
F = 25 9 x 7 17 x 14 26 x 21 34 x 28 51 x 43 68 x 57 85 x 71 102 x 85 119 x 99 136 x 113 153 x 128 170 x 142
F = 35 6 x 5 12 x 10 18 x 15 24 x 20 36 x 30 49 x 41 61 x 51 73 x 61 85 x 71 97 x 81 109 x 91 121 x 101
F = 50 4 x 4 9 x 7 13 x 11 17 x 14 26 x 21 34 x 28 43 x 35 51 x 43 60 x 50 68 x 57 77 x 64 85 x 71
F = 75 3 x 2 6 x 5 9 x 7 11 x 9 17 x 14 23 x 19 28 x 24 34 x 28 40 x 33 45 x 38 51 x 43 57 x 47
F = 100 2 x 2 4 x 4 6 x 5 9 x 7 13 x 11 17 x 14 21 x 18 26 x 21 30 x 25 34 x 28 38 x 32 43 x 35
* For working distances shorter than the minimum working distance specified for the lens, an extension ring is required to focus the lens.
Field of View (mm x mm) at Specific Working Distances (mm)
Lens FL 600 700 800 900 1000 1250 1500 1750 2000 2500
F = 6 850 x 709 992 x 828 1133 x 946 1275 x 1064 1417 x 1182 1771 x 1478 2125 x 1773 2479 x 2069 2833 x 2364 3542 x 2956
F = 8 638 x 532 744 x 621 850 x 709 956 x 798 1063 x 887 1328 x 1108 1594 x 1330 1859 x 1552 2125 x 1773 2656 x 2217
F = 9 567 x 473 661 x 552 756 x 631 850 x 709 944 x 788 1181 x 985 1417 x 1182 1653 x 1379 1889 x 1576 2361 x 1970
F = 12.5 408 x 340 476 x 397 544 x 454 612 x 511 680 x 567 850 x 709 1020 x 851 1190 x 993 1360 x 1135 1700 x 1419
F = 16 319 x 266 372 x 310 425 x 355 478 x 399 531 x 443 664 x 554 797 x 665 930 x 776 1063 x 887 1328 x 1108
F = 25 204 x 170 238 x 199 272 x 227 306 x 255 340 x 284 425 x 355 510 x 426 595 x 497 680 x 567 850 x 709
F = 35 146 x 122 170 x 142 194 x 162 219 x 182 243 x 203 304 x 253 364 x 304 425 x 355 486 x 405 607 x 507
F = 50 102 x 85 119 x 99 136 x 113 153 x 128 170 x 142 213 x 177 255 x 213 298 x 248 340 x 284 425 x 355
F = 75 68 x 57 79 x 66 91 x 76 102 x 85 113 x 95 142 x 118 170 x 142 198 x 166 227 x 189 283 x 236
F = 100 51 x 43 60 x 50 68 x 57 77 x 64 85 x 71 106 x 89 128 x 106 149 x 124 170 x 142 213 x 177
General lens formulas for any combination, given working
distance, focal length, or field of view width:
Field of View Width = 8.5 x Working Distance / Focal Length
Field of View Height = 7.093 x Working Distance / Focal Length
Focal Length = 8.5 x Working Distance / Field of View Width
Working Distance = Field of View Width x Focal Length / 8.5