Readout Method (Scan Mode) - Hamamatsu Photonics C11440-10C Instruction Manual

The exposure and the readout method of FL-280 adopt the rolling shutter.
In the rolling shutter, the exposure and readout are done line by line. Therefore, the
exposure timing is different on one screen. (Figure 9-2) But even if the object moves during
the exposure, the affect of rolling shutter shows very little afterglow or smear in many cases.
9-2

READOUT METHOD (SCAN MODE)

(1) 1×1 Normal readout
Perform charge readout from
The frame rate of all pixel readout is 45 Hz.
(2) 2×2 binning readout
With this camera, 2x2 binning readout is available by adding the signal of adjacent
pixels in the digital domain, and is a method of achieving high sensitivity as a tradeoff
for resolution. The frame rate of all pixel readout is 45 Hz same as 1x1 normal readout.
The digital output can be selected 14bit or 12bit when the 2x2 binning readout is
selected.
(3) Sub-array readout
Sub-array readout is a function to select an vertical area from among an effective
all pixel, and to read only the signal in the selection part from the FL-280. The
readout time of one frame can be shortened by using this function, and the frame
rate can be increased.
Rolling shutter
Exposure length is same for all lines
Exposure timing is different for all lines
Figure 9-2 Readout timing of rolling shutter
camera individually for all pixels.
C11440-10C Ver.1.2
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