Spyder3 SC-34 Color Camera User's Manual
27
Teledyne DALSA
03-032-20116-01
Exposure Modes in Detail
Mode 2: Internally Programmable Line Rate and Exposure Time
(Factory Setting)
Mod e 2 op erates at a m axim u m line rate and exp osu re tim e.
When setting the line rate (u sing the
ssf
com m and ), exp osu re tim e w ill be red u ced , if necessary, to
accom m od ate the new line rate. The exp osu re tim e w ill alw ays be set to the m axim u m tim e (line p er iod –
line transfer tim e – p ixel reset tim e) for that line rate w hen a new line rate requ iring red u ced exp osu re
tim e is entered .
When setting the exp osu re tim e (u sing the
set
com m and ), line tim e w ill be increased , if necessary, to
accom m od ate the exp osu re tim e. Und er this cond ition, the line tim e w ill equ al the exp osu re tim e + line
transfer tim e.
Example 1: Exposure Time Less than Line Period
Mode 3: External Trigger with Maximum Exposure
Line rate is set by the p eriod of the external trigger p u lses. The falling ed ge of the external trigger m arks
the beginning of the exp osu re.
Example 2: Line Rate is set by External Trigger Pulses.
Readout
Waiting
Exposure Time
Readout
Waiting CR
Exposure Time
Programmable Period (set command)
Programmable Period
CR
Line Period
Line Period
Programmable Period (ssf command)
Programmable Period
CR = Charge Reset
Line Period
Line Period
Readout
Readout
Exposure Time
Exposure Time
EXSYNC
Falling edge ignored
during readout
Falling edge ignored
during readout
