MATRIX VISION - mvBlueFOX3 Technical Documentation
mvBlueFOX3-2124a / BF3-5M-0124A (12.4 Mpix [4112 x 3008])

Introduction

The sensor uses a global shutter, i.e. light exposure takes place on all pixels in parallel, although subsequent readout is sequential.

Feature Description
Manufacturer Sony
Sensor name IMX304
Max. frames per second 23
Device Structure CMOS image sensor
SNRmax [dB]1/ 40.2
DNR (normal / HDR) [dB]1/ 71.0 / -
Image size 1.1
Number of effective pixels 4112 (H) x 3008 (V)
Unit cell size 3.45µm (H) x 3.45µm (V)
ADC resolution / output 12 bit → 8/10/(12)

1 Measured accord. to EMVA1288 with gray scale version of the camera

Note
Max. AOI width of color version is 4096 pixels.

Spectral Sensitivity

Figure 1: Spectral sensitivity mvBlueFOX3-2124aG
Figure 2: Spectral sensitivity mvBlueFOX3-2124aC

Timings

Name Value
InternalLineLength 1041
VerticalBlankLines 34
SensorInClock 74.25 (@50 MHz Pixel clock)

Free running mode

In free running mode, the sensor reaches its maximum frame rate. This is done by overlapping erase, exposure and readout phase. The sensor timing in free running mode is fixed, so there is no control when to start an acquisition. This mode is used with trigger mode Continuous.

To calculate the maximum frames per second (FPSmax) in free running mode you will need following formula:

                   InternalLineLength          ImageHeight + VerticalBlankLines 
FrameTime =  ------------------------------ * ----------------------------------
                     SensorInClock                         1000


If exposure time is lower than frame time:

                 1
FPS_max =  ------------
            FrameTime

If exposure time is greater than frame time:

                 1
FPS_max =  --------------
            ExposureTime

Frame rate calculator

Note
The calculator returns the max. frame rate supported by the sensor. Please keep in mind that it will depend on the interface and the used image format if this frame rate can be transferred.
.
Frame rate calculator
Mode: Overlapping exposure and readout
Product: mvBlueFOX3
Image bit depth:

Pixel clock:74.25 MHz
Image width: pixels
Image height: pixels
Exposure time: us
Device throughput: Device Sensor Throughput
Device Link Throughput
Link speed:
   
Frame rate (max): 1/s
 
  
The exposure time step width is limited to the sensor's row time of 14.05 us and therefore
- auto exposure with very low exposure times will perform with relatively large increments and
- exposure mode = TriggerWidth (if available) will perform with a jitter corresponding to the row time.

The following trigger modes are available:

Setting (GenICam) Mode / Setting (obsolete "Device Specific") Description
"TriggerSelector = FrameStart"
"TriggerMode = Off"
Continuous Free running, no external trigger signal needed.
"TriggerSelector = FrameStart"
"TriggerMode = On"
"TriggerSource = Software"
"ExposureMode = Timed"

To trigger one frame execute the TriggerSoftware@i command then.
OnDemand Image acquisition triggered by command (software trigger).
"TriggerSelector = AcquisitionActive"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = LevelLow"
"ExposureMode = Timed"
OnLowLevel Start an exposure of a frame as long as the trigger input is below the trigger threshold. (No FrameTrigger!)
"TriggerSelector = AcquisitionActive"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = LevelHigh"
"ExposureMode = Timed"
OnHighLevel Start an exposure of a frame as long as the trigger input is above the trigger threshold. (No FrameTrigger!)
"TriggerSelector = FrameStart"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = FallingEdge"
"ExposureMode = Timed"
OnFallingEdge Each falling edge of trigger signal acquires one image.
"TriggerSelector = FrameStart"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = RisingEdge"
"ExposureMode = Timed"
OnRisingEdge Each rising edge of trigger signal acquires one image.
"TriggerSelector = FrameStart"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = AnyEdge"
"ExposureMode = Timed"
OnAnyEdge Start the exposure of a frame when the trigger input level changes from high to low or from low to high.

Device Feature And Property List