
LT-200CL
13
TP : Tr ans i t i on Pi xel s
AP : Act i ve Pi xel s
OB : Opt i cal Bl ack Pi xel s
I s o : I s ol at i on St ages
LVAL : Li ne Val i d
DVAL : Dat a Val i d
LVAL
DVAL
Dat a
DM : Dummy or Tt r ans f er _dat a Pi xel s
DM
DM DM
DM
DM
DM
DM
DM
DM
DM
DM
DM
DM
DM
AP
1
AP
2
AP
3
・ ・ ・ ・ ・ ・ ・ ・ ・
・ ・ ・ ・ ・ ・ ・ ・
AP
0
DM
DM
2048
AP+OB=2064
OB
0
OB
1
OB
2
OB
3
OB
4
OB
5
OB
6
OB
7
AP
20
47
AP
20
46
AP
20
45
AP
20
44
OB
8
OB
9
OB
10
OB
11
OB
12
OB
13
OB
14
OB
15
1CLK=12. 5ns
2544
DM
Effective Pixels Period
Fig.10 Video output timing
6.3. Key functions
6.3.1 Line rate (Command LR)
This function can set the line rate longer than 1L. Accordingly, it is possible to match the
camera scan rate with the object running speed, or to boost up the sensitivity by setting a
longer exposure time.
Adjusting range: 32.9125µs(1L) to 16.844ms
Adjusting unit: 12.5ns
Operation mode: TG=0 Internal trigger
Applicable mode: No-shutter/Internal, Shutter select/Internal
The line rate can be automatically configured (one-push auto line set) (Command:AR).
This function will calculate and set the line rate of the camera based on the Automatic
Line Rate Reference Level (Command :AL) and the scene illumination.
6.3.2 Electronic shutter (Exposure) (Command PER, PEG, PEB)
This function sets the exposure time regardless of line rate setting. The exposure time
can be set for red, blue, and green, respectively.
Command
PER= 2064 to 1056720
PEG= 2064 to 1056720
PEB= 2064 to 1056720
Adjusting range: 25.8μs (2064clk) to 13.209ms (1056720clk)
(RGB individually)
Adjusting unit: 12.5 ns (1clock) (RGB individually)
Operation mode: Shutter select/internal trigger and shutter
select/external trigger
Note:
Exposure time can be set as mentioned before. However, if the line rate is shorter
than the exposure time, the accumulation time is determined by the line rate.
This should be noted especially in external trigger mode.