71Alvium USB Cameras User Guide V4.6.1
Specifications
Sensor shutter types
Differences between global shutter (GS), rolling shutter (RS), and global reset
shutter (GRS) sensors are explained in Shutter types affecting image readout on
page 305. Triggering behavior differs between cameras with global shutter (GS)
and rolling shutter (RS). See Triggering and timings on page 287 for details.
Brightness with 1800 U-812 UV cameras
When the sensor is exposed to light above 400 nm wavelength, the PLS (parasitic
light sensitivity) effect occurs: The brightness level increases from the bottom to
the top of the image.
Digital binning
Alvium USB cameras combine digital horizontal binning and digital vertical binning,
for integer values 1 to 8.
Sensor binning
Selected camera models support sensor binning in addition to digital binning. From
these models, all support
Sum for binning, some also support Average.
See the specifications tables in Alvium 1800 U model specifications on page 76.
Interdependencies between ROI and ExposureTime values
Changing parameters for ROI can affect values for
ExposureTime, such as
minimum, maximum, and increments, but
ExposureTime itself as well. We
recommend you to set:
• ROI values
• DeviceLinkThroughputLimit
before you set values for ExposureTime.
See Value changes by feature interdependencies on page 301 for details.
MaxTransferSize can have an impact as well.
Alvium models ≥12 MP resolution
If digital horizontal and digital vertical binning are set to 1× and the digital vertical
binning value is increased, digital horizontal binning is automatically set to 2×.
Please observe
• Only digital binning or sensor binning can be used at a a time.
• You must revert binning values to
1 before you can switch between these
binning modes.
To Next Page
Loading...
