Thread: Strehl ratio
View Single Post
  #10  
Old 01-09-2019, 05:39 PM
Wavytone
Registered User

Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,151
Fair observation, however there is a reasonable data set to test the idea - the Russian lab data I found a while back provides data for 128 scopes using the same setup. Sure there's some scatter in the plot of strehl vs P-V but the correlation is useful. RMS is as expected since the Strehl is calculated off the same data set.

That the lines don't cross the strehl axis at 1.0 suggests limitations on their equipments accuracy with small errors.
Attached Thumbnails
Click for full-size image (PV and RMS vs Strehl.jpg)
151.0 KB28 views

Last edited by Wavytone; 01-09-2019 at 07:29 PM.
Reply With Quote