10
Micropublisher 6
TM
User Manual
ROI / Binning
The MicroPublisher 6 camera supports both user-defined, arbitrary regions of interest (ROI) as well as hardware pixel binning
modes of 1x1, 2x2, 4x4, 6x6, 8x8, 12x12, and 16x16. Both ROIs and pixel binning will enable faster frame rates, making
focusing and scanning much easier. Pixel binning also has the advantage of significantly increasing the signal-to-noise ratio
(SNR) of the image, as the effective pixel size is increased, collecting more light, and the impact of read-noise is diminished
relative to adding signals together off chip.
Device Synchronization
Your MicroPublisher 6 camera offers several methods of hardware synchronization via transistor-transistor logic (TTL) signals
with external devices, including function generators, light sources, shutters and filters. Each camera has an I/O connector
(pin out functions are described in the specifications chapter) on the back for trigger-in/out and various TTL input and output
operations.
An optional cable is available to access primary signals such as “Trigger-in,” “Expose out,” “End of Frame” and “Shutter Out”.
The camera triggers on the rising edge of a TTL signal. The MicroPublisher 6 camera supports three trigger modes:
Trigger-First Mode
In this mode, the camera requires one trigger to begin the acquisition of a stream of images. Once a single trigger is received,
the camera will use its internal clock to acquire the entire image stream, independent of any future triggers. It is possible to
run this triggering mode in either Non-Overlap Mode (
left
) or Overlap Mode (
right
).
Strobe Mode
In this Mode, each frame in the sequence requires a trigger. When a trigger is received, the camera exposes for the time set in
the software. If Strobe Mode is set to run in Overlap Mode, then all exposures except the initial one will be equal to, or larger
than, the readout time. Triggers received while Trigger Ready is low are ignored. For a sequence of one frame, Strobe Mode
and Trigger-first Mode are the same. Non-Overlap Mode is shown on the left; Overlap Mode is shown on the right.
Trigger
Exposure
Read-out
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 2
Exp 3
Trigger
Exposure
Read-out
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 2
Exp 3
Trigger
Exposure
Read-out
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 2
Exp 3
Trigger
Exposure
Read-out
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 2
Exp 3
