Readout Method (Scan Mode) - Hamamatsu Photonics C11440-42U Instruction Manual

9-2

READOUT METHOD (SCAN MODE)

The camera has the following scan modes.
(1) Normal readout
Perform charge readout from camera individually for all pixels.
(2) Binning readout
With this camera, 2×2 binning readout and 4×4 binning are available by adding the
signal of adjacent pixels in the digital domain, Binning readout is a method for
achieving high sensitivity in exchange for losing resolution.
(3) Sub-array readout
Sub-array readout is a procedure only a region of interest is scanned. It is possible to
increase the frame rate by reducing the number of vertical lines scanned. When a
target area is placed in the center of the screen, sub-array readout can perform the
fastest readout. In sub-array readout, binning configuration is enabled.
Size and a position of the readout area can be configured according to the table below.
1×1 (Normal readout)
2×2 binning readout
4×4 binning readout
(4) Rapid Rolling Mode
This readout mode is preferred to be used when acquiring images of fast moving
samples in order to minimize distortion come from rolling shutter.
• Please refer to 9-4 [FRAME RATE CALCULATION] about the frame rate of each readout
Note
mode. However, Rapid Rolling mode is different from other modes.
Binning Size
512 pixels
256 pixels
128 pixels
C11440-42U/C11440-42U01 Instruction manual_Ver.1.1
Settings
Horizontal
Position Size
32 pixels 8 lines
16 pixels 4 lines
8 pixels 2 lines
Vertical
Position
4 lines
2 lines
1 lines
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