MATRIX VISION - mvBlueFOX3 Technical Documentation
mvBlueFOX3-1012b (1.2 Mpix [1280 x 960])

Introduction

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

Feature Description
Manufacturer Aptina
Sensor name MT9M031
Max. frames per second 45.6
Device Structure CMOS image sensor
SNRmax [dB]1/ 37.4
DNR (normal / HDR) [dB]1/ 54.3 / -
Image size 1/3
Number of effective pixels 1280 (H) x 960 (V)
Unit cell size 3.75um (H) x 3.75um (V)
ADC resolution / output 12 bit → 8/10/(12)

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

Spectral Sensitivity

Figure 1: Spectral sensitivity mvBlueFOX3-1012dG
Figure 2: Spectral sensitivity mvBlueFOX3-1012dC

Timings

Name Value
PixelClock 40 & 66
VerticalBlank 25

Free running mode

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

            (ImageHeight * (    1650    )) + ((VerticalBlank+2) *      1650    )
FrameTime =                 ------------                           ------------
                             PixelClock                             PixelClock

If exposure time is lower than frame time:

                1000000
FPS_max =   ----------------
               FrameTime

If exposure time is greater than frame time:

                1000000
FPS_max =   ----------------
               ExposureTime

Snapshot mode

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

            (ImageHeight * (    1650    )) + ((VerticalBlank+2) *      1650    )
FrameTime =                 ------------                           ------------
                             PixelClock                             PixelClock
FPS_max =                  1
           -----------------------------------
                 FrameTime + ExposureTime

Frame rate calculator

Frame rate calculator
Mode: Overlapping exposure and readout
Image bit depth:

Pixel clock: 74.25 MHz
66 MHz
40 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
 
  

Note
The exposure time step width is limited to the sensor's row time of 41.3 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

Device Feature And Property List