1.19 Appendix A. Specific Camera / Sensor Data 213
See also
Using external trigger with CMOS sensors (p. 160)
1.19.2.5.2.4 Erase, exposure and readout
All pixels are light sensitive at the same period of time. The whole pixel core is reset simultaneously and after the
exposure time all pixel values are sampled together on the storage node inside each pixel. The pixel core is read
out line-by-line after exposure.
Note
Exposure and read out cycle is carry-out in serial; that causes that no exposure is possible during read
out.
The step width for the exposure time is 1 us.
Image data is then shifted out line-by-line and transferred to memory.
To calculate the maximum frames per second (FPS
max
) in snapshot mode you will need following formula:
FrameTime = (ImageHeight
*
(1650 / PixelClock)) + (25
*
(1650 / PixelClock))
FPS_max = 1
-----------------------------------
FrameTime + ExposureTime
AOI PixelClock (MHz) Exposure Time (us) Maximal Frame Rate (fps) PixelFormat
Maximum 40 100 24.6 Mono8
W:1036 x H:776 40 100 30.3 Mono8
W:838 x H:627 40 100 37.1 Mono8
W:678 x H:598 40 100 38.9 Mono8
W:550 x H:484 40 100 47.6 Mono8
1.19.2.5.3 Measured frame rates
1.19.2.5.4 Sensor Data
Device Structure
• CMOS image sensor (Type 1/3")
• Number of effective pixels: 1280 (H) x 960 (V)
• Unit cell size: 3.75um (H) x 3.75um (V)
1.19.2.5.4.1 Characteristics
MATRIX VISION GmbH
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