Visual Point Focus Alignment Pattern (PF-V)

Name & ID	Symbol	Typical Target Used	DOF and Sensitivity	Description
Visual Point Focus (PF-V)		Diffuse surface or UUT	Coarse (visual) alignment of dX, dY, and dZ	Projects a focused spot to UUT outer diameter or diffuse target surface.

Visual Point Foci (PF-V) are helpful for initial setup of your UUT.  The alignment process is as follows:

1. Find the projected spots or crosses:
   • • Visually onto a white target
     • With a camera
2. Move the test optic or Metrology Platform to bring the spot/crosses into focus and center them.
   • • Accuracy of < 1 mm is easy
     • Precision of 0.1 mm is possible

 

 

Visual point foci can be sent to a variety of targets.  Common targets are the UUT itself (typically the outer edge) or a Photogrammetry Target, as shown below.

 

Click here for a summary table of all AOM alignment patterns.