4. LENSES
Table 1: Operating voltages for trigger port.
Voltage
Description
−
70 – +40 VDC
Absolute maximum voltage
0 – +30 VDC
Safe operating range
Table 2: Maximum allowed lens intrusion.
Mount type
Maximum intrusion
CS-mount
5.2 mm
C-mount
10.2 mm (with 5 mm spacer ring)
SceneScan’s trigger port or to an equivalent trigger source. The trigger signal
will ensure that image acquisition of both cameras is synchronized, which is
necessary for processing the acquired image data.
The relevant voltage ratings for the trigger line are listed in Table 1. The
absolute maximum voltage must not be exceeded in order to avoid damages
to the device.
4
Lenses
On the front-side, Karmin3 features two lens mounts for its two image sensors.
The lens mounts are compatible to the CS-mount standard. By using a 5 mm
spacer ring, it is possible to connect a C-mount lens. Karmin3 is shipped with
two spacer rings pre-mounted.
When mounting a lens, it is important that the lens doesn’t intrude farther
than the maximum allowed lens intrusion. If the lens intrudes farther, it can
scratch the dust protection window. The maximum allowed intrusions for
C-mount and CS-mount lenses are listed in Table 2.
5
Camera Configuration
5.1
Pixel Binning and Bayer Pattern Downsampling
For many applications a high frame rate is more important than a high image
resolution. To cover such use cases, the monochrome Karmin3 models can be
configured to use a 2
×
2 pixel binning. In this setting, four sensor pixels are
combined to form one image pixel. Using pixel binning allows the cameras to
operate at a higher frame rate. When used with SceneScan Pro, a maximum
frame rate of 38 fps is possible.
For the color models, SceneScan can perform a combined demosaicing and
down-sampling, which also results in the image width and height being halved.
This is the default operation mode when a color Karmin3 camera is connected
5