User Tools

Site Tools


ao:lab_dm

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

ao:lab_dm [2018/07/06 13:37]
127.0.0.1 external edit
ao:lab_dm [2018/07/08 10:48] (current)
jones
Line 1: Line 1:
- A small (feed-forward) DM in the lab is fantastic for saving on cost, but can be a little awkward to fit in. The documents below show one way to fit a DM with a 2mm pupil in to the CHARA lab, replacing the BRT secondary with a BK7 lens, a flat, the DM and a new paraboloid. The original intention was two curved mirrors and a DM. From MJI's email of 5 Feb 2012: " I'm thinking that if a 3 reflection option doesn't work, possibly an option with two achromats may work, especially if we can ignore lambda < 550nm."\\ \\ The DM mount size has halved since this original work. MJI has checked the effect of this, and the second paraboloid can be made a little less off axis, but there isn't otherwise much change to this setup. The xlsx file should probably be ignored but is a good starting point, and the ZMX file only has a 1mm pupil on the DM, when it can be 2mm.\\ \\ [[/file/view/CHARA_Small_DM.ZMX/402129956/CHARA_Small_DM.ZMX|{{http://www.wikispaces.com/i/mime/32/text/plain.png?32x32|CHARA_Small_DM.ZMX}}]][[/file/view/CHARA_Small_DM.ZMX/402129956/CHARA_Small_DM.ZMX|CHARA_Small_DM.ZMX]]\\  +====== Lab DM ====== 
- + A small (feed-forward) DM in the lab is fantastic for saving on cost, but can be a little awkward to fit in. The documents below show one way to fit a DM with a 2mm pupil in to the CHARA lab, replacing the BRT secondary with a BK7 lens, a flat, the DM and a new paraboloid. The original intention was two curved mirrors and a DM. From MJI's email of 5 Feb 2012: " I'm thinking that if a 3 reflection option doesn't work, possibly an option with two achromats may work, especially if we can ignore lambda < 550nm."\\ \\ The DM mount size has halved since this original work. MJI has checked the effect of this, and the second paraboloid can be made a little less off axis, but there isn't otherwise much change to this setup. The xlsx file should probably be ignored but is a good starting point, and the ZMX file only has a 1mm pupil on the DM, when it can be 2mm.\\  
-  * [[/file/detail/CHARA_Small_DM.ZMX|Details]] +\\  
-  * [[/file/view/CHARA_Small_DM.ZMX/402129956/CHARA_Small_DM.ZMX|Download]] +[[http://chara.gsu.edu/wiki/data/pages/ao/files/CHARA_Small_DM.ZMX|CHARA_Small_DM.ZMX]]\\  
-  * 15 KB +{{ao:CHARA_LabAO.xlsx|CHARA_LabAO.xlsx}}\\  
-\\ [[/file/view/CHARA_LabAO.xlsx/402130036/CHARA_LabAO.xlsx|{{http://www.wikispaces.com/i/mime/32/application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.png?32x32|CHARA_LabAO.xlsx}}]][[/file/view/CHARA_LabAO.xlsx/402130036/CHARA_LabAO.xlsx|CHARA_LabAO.xlsx]]\\  +{{ao:CHARA_Small.docx|CHARA Small.docx}}\\ 
- +
-  * [[/file/detail/CHARA_LabAO.xlsx|Details]] +
-  * [[/file/view/CHARA_LabAO.xlsx/402130036/CHARA_LabAO.xlsx|Download]] +
-  * 37 KB +
-\\ [[/file/view/CHARA%20Small.docx/402130156/CHARA%20Small.docx|{{http://www.wikispaces.com/i/mime/32/application/vnd.openxmlformats-officedocument.wordprocessingml.document.png?32x32|CHARA Small.docx}}]][[/file/view/CHARA%20Small.docx/402130156/CHARA%20Small.docx|CHARA Small.docx]]\\  +
- +
-  * [[/file/detail/CHARA%20Small.docx|Details]] +
-  * [[/file/view/CHARA%20Small.docx/402130156/CHARA%20Small.docx|Download]] +
-  * 128 KB+
ao/lab_dm.1530898654.txt.gz · Last modified: 2018/07/06 13:37 by 127.0.0.1