◦
Support for 2x2 pixel binning for resolutions lower than the maximum 5MP for
better SNR in low light conditions
◦
Post binning resampling to minimise aliasing artefacts after 2x2 binning.
◦
On chip image windowing registers allow sub-windows of the full imaging area
to be selected from the sensor (see the digital pan, tilt and zoom controls
discussed below).
•
Lens system
◦
Effective Focal length: 2.8 mm
◦
Field of view angle: 76 degrees
◦
TV Distortion: <1%
◦
F. number: 2.2
◦
Relative illumination of sensor: 70%
◦
IR Cut filter: 650 nm
±
10 nm (fixed)
◦
Construction: 4 element
◦
Focus: Electromagnetic voice coil mechanism
allows for continuous auto-focus and programmable manual focus (figure 3.2).
◦
Distance: 3 cm to infinity. The closest distances are most reliably achieved
using manual focus.
OptArc AF51 Camera Page 23 of 99 User Guide v1.02
Fig 3.2 The lens system of the
AF51 is contained in an 8.5 mm
square metal package.
