CV-M9 GE
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8.5. Operation Modes
This camera can operate in 5 primary modes.
1.
Continuous Mode
Pre-selected exposure.
2.
Edge Pre-select Mode (EPS)
Pre-selected exposure.
3.
Pulse Width Control Mode (PWC)
Pulse width controlled exposure.
4. Sequential Trigger
Pre-selected exposure (EPS)
5. Delayed Readout Trigger
Pre-selected exposure (EPS/PWC)
The triggered accumulation in EPS, PWC, Sequential Trigger and Delayed Readout Trigger can be
LVAL synchronous or LVAL a-synchronous.
In
LVAL synchronous accumulation
, a new exposure can be started while the previous frame is
read out. The new exposure should not be finished before the frame is read out. FVAL (Trigger
Duration) shall be low for >2 LVAL. The maximum frame rate in trigger modes can then be close
to the frame rate in continuous mode.
The minimum trigger interval should be longer than (1 FVAL+1 LVAL) in the case of Smear Less
OFF and Same RGB exposure time.
In
LVAL a-synchronous accumulation
, a new trigger must not be applied before the previous
frame is read out. (FVAL is low).
The minimum trigger interval should be longer than (exposure time + 1 FVAL+1 LVAL).
Refer to chapter 8.5.1. and 8.5.2. for accumulation details.
8.5.1. LVAL synchronous accumulation
In LVAL accumulation mode, the accumulation will start synchronously with LVAL. The trigger
pulse should be longer than 2 LVAL (LVAL=42.07µs). The accumulation will start at the first LVAL
after the trigger leading edge. The exposure start delay will be up to 1 line. (42.07
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 (Trigger Duration) shall be low for >2 LVAL. The maximum frame rate in trigger modes can
then be close to the frame rate in continuous mode.
Minimum trigger interval
≥
(1 FVAL + 1 LVAL). (EPS mode)
note: Smear-less OFF / Common exposure time for RGB