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Alvium USB Cameras User Guide V3.6.4
Specifications
Sensor position accuracy
Sensor shift and rotation
The following table defines the manufacturing accuracy for sensor positioning.
Figure 60: Sensor shift and rotation
Criteria
Subject
Properties
Alignment method
Optical alignment of the photosensitive sensor area into the camera
front module (lens mount front flange)
Reference Points
Sensor
Center of the pixel area (photo sensitive cells)
Camera
Center of the lens mount
Accuracy
x/y-axis
1,2
±150 µm
(sensor shift)
z
0 to -100 µm (optical back focal length)
α
1
±0.5 deg
(sensor rotation as the deviation from the parallel to the
camera bottom)
1
We cannot measure or guarantee these values for
non-standard S-Mount hardware options
that are
manufactured on customer request for: Alvium 1800 U-052, U-291, U-507, U-508, U -811, U -1236,
U -1242, U-1620, U-2040, U-2050, and U-2460.
2
For Alvium 1800 U-2050 models, the complete offset is ±200 µm, common tolerances do not have to
be added.
Table 72: Alvium USB cameras, criteria of sensor position accuracy
x
y
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