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Unibrain Fire-i 530/630/830 Operation Manual Page 24
2903~3304 100ms T= (Y-2902)*100+5800 ms 5.9s ~ 46s
3305~3508 1s T= (Y-3304)*1000+46000 ms 47s ~ 250s
3509~3843 10s T= (Y-3508)*10 + 250 s 260s ~ 3600s
Shutter Speed Example
Example Shutter Speed Table
1394 Shutter Exposure Time 1394 Shutter Exposure Time 1394 Shutter Exposure Time
1 1us 1729 100ms 3378 2 min
10 10us 1829 200ms 3438 3 min
100 100us 2129 500ms 3513 5 min
500 500us 2422 1s 3525 7min
550 1ms 2522 2s 3543 10 min
650 2ms 2822 5s 3603 20 min
950 5ms 2944 10s 3663 30 min
1045 10ms 3044 20s 3723 40 min
1145 20ms 3318 60s 3783 50 min
1445 50ms 3323 65s 3843 60 min
3.8. Gain
Gain refers to the amount of the CCD output signal amplification where gain and shutter have similar effect on the
image. Manual and Automatic gain mode are supported and manual adjustment is possible for the following range.
For Gain control inquiry and status register, follow the same definition as “BRIGHTNESS”.
Camera Type Step Range Range in dB Increment Length
Monochrome Camera 0 ~ 723 0 ~ 27 approx. 0.0345 dB/step
Color Camera 0 ~ 723 0 ~ 25 approx. 0.0319 dB/step
Auto Gain 0 ~ 528 All models except IMx-11FT
Auto Gain 0 ~ 468 IMx-11FT
3.9. Trigger & Strobe
The cameras support external trigger by receiving input through the external trigger port. The falling edge and
rising edge can be detected as a trigger according to the modes it supports as per the following table. Strobe timing
is user controllable while signal output is TTL. The cameras can also be used with a software trigger that issues a
trigger signal via a software command.