Surface sag map tilt?

  • 5 April 2024
  • 2 replies


I have a question on the tilt x and y values, in the text tap of the Surface Sag map.

When I create the OAP and try to extract the sag map, it shows certain values.

What does mean of tilt? Was the data in text tilted by displayed angle? (To have the center of sag map to be normal to projection angle?) If this means tilt, the aperture should be oval shape with cosine factor. 


2 replies

Userlevel 7
Badge +3

Can you post a screenshot of what you’re seeing?

I have attached a snapshot of the surface sag map data. This pertains to off-axis optics surface. I have highlighted the angle values in red underline.