Digital Responsivity - Basler A500k User Manual

Introduction

1.3 Digital Responsivity

The specified digital responsivity is obtained if the gain is set to 98. In addition, the output depends
on the register setting for the digital shift. The values given are typical values which can vary
between different cameras:
For digital shift = 0:
For digital shift = 1:
For digital shift = 2:
For digital shift = 3:
LSB = least significant bit
See section 3.6.1
Example:
If the gain is set to 98, if digital shift is set to 0, and the quantity of light of 1 lux-sec has hit the
sensor, a gray value of 400 is output.
The quantum efficiency of the sensor is shown in Figure 1-1.
Figure 1-1: Spectral Response for A500
1-4
PRELIMINARY
400 DN/lx s @ 550 nm
800 DN/lx s @ 550 nm
1600 DN/lx s @ 550 nm
3200 DN/lx s @ 550 nm
for the formula.
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Cameras
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Basler A500