PhoXi 3D scanners family

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Revision as of 14:27, 18 October 2018 by Juranek (talk | contribs) (Connectivity)

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This page contains technical description of PhoXi 3D Scanners. For scanning guide, see Scanning best practices.

General specification

Projection unit
Light source Visible red light (laser)
Wavelength 638nm
Laser class 3R (IEC / EN 60825-1, 2014)
Peak / CW Power 314uW
Pulse Energy 382nJ
Pulse Length 960us
Projection angle horizontal 47.5° ±1°
Projection angle vertical 36.0° ±2°

For model/size specific parameters see our product showcase.

Specification Parameters Explanation

Depth Map resolution
Maximum number of rendered points (the resolution of camera sensor)
Point size
The average distance between two neighboring points on the point cloud of a plane located in the focus distance of the camera. Alternatively, the square of the point size is the average surface sampled by one 3D point on the plane scanned in the focus distance of the camera.
Relation of point size to scanning distance
Calibration accuracy
The accuracy of point measurement as the result of device calibration (can be understood as the space deformation). It is the standard deviation of the measurement error in the whole measurement range of the device.
Calibration accuracy is measured by scanning multiple planes at different distances from the scanner. Below you can see a scan of the plane done by the PhoXi 3D Scanner model S at the distance of 411mm. The red points are closer to the plane and the blue points are further away form the plane

Plane 2.png

Calibration accuracy is the average distance of the 3D points from this plane.

Temporal noise
The standard deviation of the noise (measured on a diffuse surface with 80 percent albedo). The noise level describes the quality of the sensor to capture local surface details. The noise distribution of our sensor is similar to the Gaussian distribution.
Below is a graph depicting the Standard deviation of depth (Z-noise) values of 3D points for different scanning distances for the PhoXi 3D Scanner model S.


Equivalently, Temporal noise can also be defined as the average distance of the 3D points from the average Z-value of the 3D points.
Maximum number of triggered frames per second, in fastest acquisition mode
Data acquisition time - best case
Fastest possible acquisition time
Data acquisition time - worst case
Longest expected acquisition time (bad lighting conditions, dark shiny objects)
3D points throughput
Number of 3D points that can be reconstructed in a second in sequential scans


Connectivity v1.png

Pin out


Status LEDs meaning
⚫ Power status

Power cable connected

⚫ Processing unit connected

On => Suitable power connected
Off => Under/overvoltage, overcurrent

⚫ Reserved


⚫ Reserved


⚫ Ethernet speed

Off => Indicates 1 Gbps
On => Indicates 100 Mbps

⚫ Ethernet activity

Off => Link is down
Flashing Green => Link is up, with activity
Steady Green => Link is up, no activity

CAD data

Contains 3D Scanner body and its scanning volume as a solid object.

Available CAD models for download:

Device Mounting space coordinate space Camera coordinate space
PhoXi 3D Scanner XS XS - mounting space XS - camera space
PhoXi 3D Scanner S S - mounting space S - camera space
PhoXi 3D Scanner M M - mounting space M - camera space
PhoXi 3D Scanner L L - mounting space L - camera space
PhoXi 3D Scanner XL XL - mounting space XL - camera space
All in mounting space All in camera space

Note: Camera coordinate space is only approximate.


Mounting plate drawing