© 2013 Thorlabs GmbH480
DCx Cameras
5.4.6 Position Accuracy of the Sensor
The following illustration shows the tolerance margins of the sensor position relative to the camera housing. A
maximum error in all directions (rotation, translation) cannot occur simultaneously.
Position accuracy of the sensor (1)
Position accuracy of the sensor (2)
Position accuracy inside the camera housing, in each direction
Horizontal/vertical rotation (α)
Translational rotation (β)
Note
C-mount lenses can also be subject to inaccuracies of the flange back distance. The tolerance usually is ±0.05
mm. In some cases, however, the inaccuracies of camera and lens might add up, resulting in a total error > 0.05
mm.
5.4.7 Filter Glasses
Filter types
Mounting the filter
Cleaning the filter glasses
5.4.7.1 Filter Types
Each DCx camera has a filter glass in the front flange to prevent the entry of dust particles. Color cameras by
default use an IR cut filter, which is required to ensure correct color rendering. The default filter glass in
monochrome cameras has no filter effect. Every camera model is available with different filter variants such as
daylight cut filters (type DL).
The following table shows an overview of the different optical filters used in the DCx Cameras:
Refractive index
(n
Filter
)
480
484
485
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