Transcript OSM_De-rotation.ppt

NGAO
Laser Guide Star
φ/θ Type Mechanisms operation at
different field points without a
derotation
7/13/2016
Alex Delacroix
1
The “F Image in” orientation is fixed to simulates an object observed.
1) Crank and lever Arm Horizontal: “F image” out is vertical
Tip Tilt
Collimator Lens
F Image in
Periscope
Probe
F at pupil on TT
Focusing Lens
F Image out
7/13/2016
Alex Delacroix
2
The “F Image in” orientation is fixed to simulates an object observed.
2) Crank Horizontal and Lever at 45°: “F image” out is still vertical
F Image in
Collimator Lens
Probe
F at pupil on TT
(TT Not Shown
for view clarity)
Periscope
Focusing Lens
F Image out
7/13/2016
Alex Delacroix
3
The “F Image in” orientation is fixed to simulates an object observed.
3) Crank and Lever at 45°: “F image” out is still vertical
F Image in
Collimator Lens
Probe
F at pupil on TT
(TT Not Shown
for view clarity)
Periscope
Focusing Lens
F Image out
7/13/2016
Alex Delacroix
4
The “F Image in” orientation is fixed to simulates an object observed.
4) Crank and Lever at 90°: “F image” out is still vertical
F Image in
Collimator Lens
Probe
F at pupil on TT
(TT Not Shown
for view clarity)
Periscope
Focusing Lens
F Image out
7/13/2016
Alex Delacroix
5