375
Camera Basics
© 2010 Thorlabs
9.8
Digital input/output
DCU cameras provide a digital input and a digital output. These are available via the nine pin micro
Sub-D connector on the back of the camera. The digital input/output can be used for different
purposes.
9.8.1
Digital input (trigger)
In triggered mode the image acquisition of the DCU camera can be started by an external event. For
this purpose a digital signal has to be applied to the digital input of the camera. The user can define
whether the camera reacts to the rising or falling edge of the digital signal. After an internal delay
time the sensor is exposed with the specified exposure time. The captured image is subsequently
transferred to the PC.
HINT
The delay time is due to internal camera switching times and depends on sensor
type and specified parameters. It is in each case below 100 µs. Precise values for
the camera delay times can be found in chapter
.
The camera is ready to process the next trigger event after the transfer of the image to the PC is
finished. Trigger events which occur during image exposure or transfer are ignored. An internal
counter records the number of ignored trigger events and can be read out from the PC.
The status of the digital input can be queried by software. So, the input can be used for multiple
purposes.
Figure 70
Trigger input time flow
402
Summary of Contents for DCC1 45 Series
Page 5: ...Version Date 3 5 2 22 09 2010 2010 Thorlabs 2010 Thorlabs ...
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Page 16: ...Introduction DCx camera Part I ...
Page 18: ...General Information DCx camera Part II ...
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Page 22: ...Getting Started DCx camera Part III ...
Page 24: ...Installation DCx camera Part IV ...
Page 30: ...uc480 Camera Manager DCx camera Part V ...
Page 38: ...Camera viewer uc480Viewer DCx camera Part VI ...
Page 45: ...40 DCx camera 2010 Thorlabs Menu Help Figure 15 Info about Camera viewer uc480Viewer ...
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Page 88: ...SDK Software development Kit DCx camera Part VII ...
Page 109: ...104 DCx camera 2010 Thorlabs Figure 52 Flowchart Handling events messages ...
Page 121: ...116 DCx camera 2010 Thorlabs Flowchart Digital output Figure 57 Flowchart Digital output ...
Page 161: ...156 DCx camera 2010 Thorlabs Related Functions is_GetCameraType is_CameraStatus 159 121 ...
Page 175: ...170 DCx camera 2010 Thorlabs is_GetExposureTime 167 ...
Page 238: ...233 SDK Software development Kit 2010 Thorlabs is_SetImagePos is_SetPixelClock 271 277 ...
Page 261: ...256 DCx camera 2010 Thorlabs is_SetTriggerDelay 289 ...
Page 271: ...266 DCx camera 2010 Thorlabs is_SetGainBoost is_SetAutoParameter 261 221 ...
Page 283: ...278 DCx camera 2010 Thorlabs is_SetSubSampling is_SetAOI 284 219 ...
Page 291: ...286 DCx camera 2010 Thorlabs is_SetAOI is_SetImagePos is_SetPixelClock 219 271 277 ...
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Page 362: ...Maintenance and Service DCx camera Part VIII ...
Page 370: ...365 Maintenance and Service 2010 Thorlabs ...
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Page 372: ...Camera Basics DCx camera Part IX ...
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Page 390: ...Appendices DCx camera Part X ...
Page 397: ...392 DCx camera 2010 Thorlabs Figure 90 Securing the adjusting ring ...
Page 405: ...400 DCx camera 2010 Thorlabs Figure 106 Rev 2 0 Flash Strobe output as Open Emitter OE ...
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