Working distance

The distance from a lens to an inspection target is referred to as “working distance”, and an area where a code reader can see at that distance is referred to as “field of view.”

CF26-SR (6.2 mm lens)

Minimum code sizes that can be read in each working distance (unit: mm)

Working distance	Minimum size for 1-D code	Minimum size for 2-D code
40	0.0508	0.0762
65	0.0508	0.1016
105	0.127	0.1778

Horizontal view

CF26-LR (16 mm lens)

Minimum code sizes that can be read in each working distance (unit: mm)

Working distance	Minimum size for 1-D code	Minimum size for 2-D code
80	0.0508	0.0508
150	0.0508	0.0762
190	0.0508	0.1016
225	0.0762	0.1016
375	0.1016	0.1778
500	0.1524	0.254
1000	0.381	0.508

Horizontal view

CF37-SR (10.3 mm lens)

Working distance in which the code cell size is readable (unit: mm)

Code cell size	Working distance for 1-D code	Working distance for 2-D code
0.1524	445	307
0.2032	591	408
0.254	738	509
0.3302	958	660
0.381	1104	761
0.508	1471	1013

Horizontal view

CF37-LR (24 mm lens)

Working distance in which the code cell size is readable (unit: mm)

Code cell size	Working distance for 1-D code	Working distance for 2-D code
0.1524	1029	709
0.2032	1370	944
0.254	1711	1178
0.3302	2223	1530
0.381	2564	1764
0.508	3417	2351

Horizontal view