CV-A10 CL and CV-A70 CL
6.4.1. LVAL synchronous accumulation
With LS=0, the accumulation will start synchronously with LVAL. The trigger pulse should be
longer than 2 LVAL, and the accumulation will then start at the first LVAL after the trigger
leading edge. The exposure start delay will be up to 1 line. (26.7
µ
sec.).
In EPS mode the exposure stops 0.5 L after the selected shutter time, (in number of LVAL).
In PWC mode the exposure stops 0.5 L after the first LVAL after the trigger trailing edge. It
results in up to 1 LVAL jitter.
In trigger modes with LVAL synchronous accumulation, a new exposure can be started while the
previous frame is read out. The new exposure should not finish before the frame is read out.
FVAL shall be low for >2 LVAL. The maximum frame rate in trigger modes can then be close to
the frame rate in continuous mode.
Important notes on using this mode.
In LVAL synchronous trigger modes, exposure jitter up to 1 LVAL can be the result, if the trigger
trailing edge is not synchronized to LVAL. Refer to fig. 23.
The minimum trigger interval should be longer than (1 FVAL + 3 LVAL).
Fig. 24. LVAL synchronous accumulation in EPS mode
Fig. 25. LVAL synchronous accumulation in PWC mode
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