LQ-200CL
24
7.15 Commands GAR2 , GAG2, GAB2 and GAIR2 – Fine Gain (R,G, B and NIR)
Fine gain can be digitally controlled.
Settings:
6554 to9830
x0.8 (6554/8192) to x1.2(9830/8192) (R,G,B and NIR)
7.16 Command GM - Gain Mode
Selects gain mode.
Settings:
0=Master Tracking (Factory default)
1=Individual
7.17 Command LR - Line Rate (Scan Rate)
This function is used only when there is not an external trigger pulse (e.g. from an encoder)
available. It allows the user to program the line rate, in order to match the speed of the
object being scanned. In the No-Shutter mode, the exposure time is directly proportional
to the line rate (T
exp
= 1/line rate)
Settings:
2100 to 2150400, in 25ns increments (19 kHz to 18 Hz)
Associated functions:
Trigger origin, TG=0
Applicable modes:
No-Shutter with internal trigger (TR=0)
Shutter-Select with internal trigger (TR=1)
Note
The data can be stored in the camera memory for next start up.
It is recommended to use 52.5μs to 2ms of line rate because the black level is stable
in this range.
7.18 Command LUTC - LUT Control
The LQ-200CL has an internal LUT(Look Up Table) for setting gamma. Command LUTC
selects gamma OFF, Gamma 0.45 or LUT.
Settings:
0 = Off
1 = 0.45
2 = User
γ
=0.45
In this mode, R,G,B and NIR have the same characteristics for gamma.
CCD out
Analog Signal * Digital Out(32bit) Digital Out(40bit)
Black
Setup 3.6%, 25mV
8LSB
32LSB
200mV
700mV
222LSB
890LSB
230mV
↑
800mV
255LSB
1023LSB
Fig.18 LUT characteristics
835
White Clip Level
100% Level
Di
gi
ta
l
Ou
t
[L
SB
]
700
25
0
32
890
1023
Black Level
Analog Signal [mV]