6.
Scan Mode
6.1.Partial scan mode
□
It is possible to increase the frame rate by limiting the vertical scan area.
□
Set the partial area with the communication command.
Vertical start position address: 40 --41
Partial scan number of valid lines Address: 50 – 51
□
Does not work in VGA mode or QVGA mode.
Setting Example
Normal shutter mode
①
:
V blanking
:
27H
②
:
Vertical start position
:
120H
③
:
Partial scan effective line number
:
480H
④
: Total frame line number
:
507H(
①+③
)
Fixed trigger shutter mode *Example : Exposure time : 1/1000s(45H)
①
:
V blanking
:
53.5H
②
:
Vertical start position
:
120H
③
:
Partial scan effective line number
:
480H
④
:
Exposure line number
:
45H
⑤
: Total frame line number
:
578.5H(
①+③+④
)
FVAL
LVAL
①
④
③
Video Out
スタートポジション
②
有効ライン数
FVAL
LVAL
④
⑤
③
Video Out
スタートポジション
②
有効ライン数
Exposure Time
TRIG IN
①
(a+b+c)
a
b
c