Easy Reader Auto Focus Optical Systems

Ideal for High Magnification Vision Applications

Compact Easy Reader Set-up

  • High magnification, long working distance auto focus design.
  • Very fast auto focus adjustment (less than 0.5 seconds).
  • Built-in optical zoom varies from 5.5X up to 14X.
  • Operational with only ambient light.
  • Extremely reliable and durable in demanding factory environments.
  • High magnification infinity corrected objectives can be integrated.
  • RS-232 computer controllable.
  • Coaxial illumination available with high magnification system.
  • Low cost.

As a result of the ever increasing demand for automated optical inspection (AOI), Navitar has introduced a line of Easy Reader Auto Focus zoom systems. These systems automatically adjust focus using Digital Signal Processing (DSP) technology.

Navitar’s Auto Focus systems are ideal for imaging objects with varying feature heights. The DSP technology used to adjust focus eliminates the need to move the optical system or object to regain sharp focus. This feature can dramatically reduce the cost of developing fixtures.

The Easy Reader Auto Focus systems are RS-232 controllable, allowing computer operation of the camera's zoom, gain, iris, electronic shutter and white balance functions. Navitar offers Compact Easy Reader AF Systems, High Magnification AF models and many custom units that can be configured to meet nearly any field of view or working distance. Please call for more information on configuring an Easy Reader Auto Focus system to meet your specific needs.

Compact Easy reader Auto Focus System
High Magnification Easy Reader Auto Focus System
Compact Easy Reader
High Magnification Easy Reader

Compact Easy Reader Field of View (14:1 Zoom Ratio)

Lens
Attachment
W.D.
 
FOV at High Mag.
Resolution
(microns)
 
 
FOV at Low Mag.
 
AF Adjustment
H
V
XH
V
High Mag.
Low Mag.
0.25X
309
12.6
9.3
15
173.0
129.8
129
300
0.5X
160
6.4
4.8
8
89.6
67.2
35
150
0.75X
107
4.3
3.2
5
59.9
44.9
15
100
1X
86
3.4
2.6
4
48.2
36.1
10
80
1.5X 
50
2.0
1.5
3
28.0
21.0
3
45
 2X
37
1.5
1.1
2
20.7
15.5
2
30
*Measurements are in millimeters unless otherwise specified.

High Magnification Easy Reader Field of View (8:1 Zoom Ratio)

Lens
Attachment
W.D.
 
FOV at High Mag.
 
FOV at Low Mag.
 
AF Adjustment
H
V
XH
V
High Mag.
Low Mag.
0.25X
309
12.6
9.3
173.0
129.8
129
300
0.5X
160
6.4
4.8
89.6
67.2
35
150
0.75X
107
4.3
3.2
59.9
44.9
15
100
1X
86
3.4
2.6
48.2
36.1
10
80
1.5X 
50
2.0
1.5
28.0
21.0
3
45
 2X
37
1.5
1.1
20.7
15.5
2
30
Mitutoyo
(5.5:1)
 
2X
34
1.2
0.9
7.2
5.4
1
15
5X
34
0.5
0.4
2.9
2.1
0.2
6
10X
33
0.2
0.2
1.4
1.1
0.05
3
20X
20
0.1
0.1
0.7
0.5
0.01
1
*Measurements are in millimeters unless otherwise specified.

 

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Revised: February 18, 2010.

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